Open-source toolsAPI / SDK

69 match your filters — 66 of them answered our check today.

Watching this group for 20 days · how we check

This week27 new arrivals1 stopped answering

Lets developers monitor their OpenAI Codex usage from the macOS menu bar instead of checking a web dashboard, using only their existing CLI session.

Data stays with youOpen source

Watched for 1 day · last checked 1d ago

Details →

Lets Chrome users open saved bookmarks with a keyboard shortcut instead of digging through bookmark menus.

FreeWorks offlineOpen source
What to know
How it works
Type a short code to open a page or a whole folder as a tab group; on-device AI adds tags and semantic search by default.
Pricing
free, open source

Watched for 1 day · last checked 1d ago

Details →

Open-source SDK that lets AI agents build, evaluate, and optimize other agents cheaply.

Domain registered 10 days ago

Open source
What to know
How it works
An SDK that lets AI agents build, evaluate, and optimize other agents, supporting 1,000+ models, reusable skills, and automatic data generation.
What's different
Open source.
Pricing
About $0.02 to build a complete RAG application with one prompt.

Watched for 4 days · last checked today

Details →

Open-source tool that clones any public website into clean, componentized Next.js or Vite code deterministically.

Domain registered 28 days ago

FreeOpen source
What to know
How it works
point it at a URL, get faithful componentized code in minutes
What's different
fully deterministic so fast, cheap, consistent
Pricing
free
Best for
developers rebuilding or copying web UIs

Watched for 6 days · last checked today

Details →

A stealth browser engine that lets scraping and automation scripts avoid bot detection, for developers running Playwright or Puppeteer agents.

Open source
What to know
How it works
Drop-in Chromium that reads as ordinary Chrome to detection systems
What's different
keeps existing Playwright/Puppeteer code unchanged, open BSD-3 engine
Best for
developers building scrapers or web-acting AI agents

Watched for 6 days · last checked today

Details →

Reame

Live

A self-hosted LLM inference server that runs on cheap CPU hardware, for developers who want local AI inference without a GPU.

Open sourceSelf-hosted
What to know
How it works
CPU-first inference on llama.cpp with an OpenAI-compatible API
What's different
caches prompts and past generations so repeat requests cost less
Pricing
MIT licensed, works on a €5 VPS or free-tier ARM box
Best for
developers running narrow, repetitive AI workloads on cheap hardware

Watched for 6 days · last checked today

Details →

Pylva

Live

Tracks the real infrastructure cost of each customer for AI agent builders, so they can set margin caps per customer.

Open source
What to know
How it works
SDK-only telemetry tracks LLM and non-LLM usage per customer
What's different
open source, reactive rules like per-customer cost caps
Pricing
open source
Best for
builders of AI agent products billing by usage

Watched for 6 days · last checked today

Details →

Sanwo

Live

An open-source SDK that unifies multiple payment providers (Paystack, Flutterwave, Razorpay, Monnify, Interswitch) behind one API, instead of integrating each provider separately across web, mobile, and no-code platforms.

FreeOpen source
What to know
How it works
Native SDKs for React, Vue, Svelte, React Native, Flutter, iOS, Android, plus no-code plugins for Shopify, WordPress, Webflow, Wix, Squarespace.
Pricing
Free forever, Apache-2.0 licensed.

Watched for 2 days · last checked 1d ago

Details →

Reviews pull requests and maps code dependencies so developers can understand large codebases before refactoring, without indexing delay.

Domain registered 1 month ago

Open sourceSelf-hosted
What to know
How it works
Builds a dependency graph and semantic index, cites source in answers
What's different
instant PR reviews with no indexing step, open source and self-hostable
Pricing
open source
Best for
developers working in large or unfamiliar codebases

Watched for 6 days · last checked today

Details →

Instant, no-signup temporary email aliases with rotating domains to dodge blacklists, plus a public API for developers who want to build it into their own workflows.

FreeNo sign-upData stays with youOpen source
What to know
How it works
Creates custom, instant temporary email aliases (any inbox name) without sign-up, receiving emails in real-time from multiple rotating domains to avoid blacklists; also offers a public API and open-source frontend.
What's different
Rotating domains to avoid blacklists, plus no popups, timers, or tracking, unlike traditional temp mail tools.
Pricing
Free.
Best for
People needing disposable email for sign-up verifications or testing, and developers who want to build disposable email into their own workflows via the API.

Watched for 14 days · last checked 8d ago

Details →

VeloIQ

Live

An open-source Python framework that auto-generates a REST API, admin back-office, and React CRUD UI from your data models, for developers building internal tools locally.

Domain registered 2 months ago

Works offlineOpen source
What to know
How it works
define data models once in Python; generates API, admin panel, and UI automatically
What's different
open source, local-first, data stays on your infrastructure
Best for
developers building CRUD apps without hand-building each layer

Watched for 4 days · last checked today

Details →

Set of open-source skills that let Claude Code or other AI agents scrape Google Maps business listings, extract emails and draft cold outreach.

FreeOpen source
What to know
How it works
8 installable skills covering scraping, email extraction, competitor and review analysis
Pricing
3 skills free/local; scraping skills use a paid API with free starting credits
Best for
Developers building automated local-business lead-generation workflows

Watched for 6 days · last checked today

Details →

Tracks and converts LLM API spend across OpenAI, Anthropic and Gemini locally, instead of trusting a cloud dashboard with your usage data.

FreeWorks offlineOpen source
What to know
Pricing
Free and open source.
Best for
Developers juggling multiple LLM provider SDKs and costs.

Watched for 2 days · last checked 1d ago

Details →

An open-source CLI that checks SPF/DKIM/DMARC/MX records, verifies addresses via SMTP, and flags disposable/role-based emails, for developers validating deliverability before sending.

Open source
What to know
How it works
DNS health scoring, SMTP RCPT TO verification, domain typo correction, 29 RBL blacklist scans, ~74k disposable domain detection; includes REST API.
Pricing
Free demo available.

Watched for 2 days · last checked 1d ago

Details →

Local SMTP test server for developers to safely test signup, password reset, and OTP emails without sending anything to real inboxes.

FreeOpen source
What to know
How it works
Runs locally, app points to it, each test run gets an isolated inbox so parallel tests don't collide.
What's different
Open-source and free, no external delivery.
Pricing
Free
Best for
Developers testing email flows with Playwright, Vitest, Jest, or Node.

Watched for 5 days · last checked today

Details →

Bundles five small free-tier developer APIs (WHOIS, company lookup, email validation, geolocation, sanctions screening) as a cheaper alternative to separate paid subscriptions.

FreeOpen source
What to know
How it works
Bundles five production APIs: Domain WHOIS via RDAP, Company Info from Wikipedia/Wikidata, Email Validator with MX+SMTP, IP Geolocation with dual-source fallback, and a Sanctions Screener with 20K+ OFAC/UN entities.
Pricing
Free tier: 100 requests/month, no credit card.
Watch out
Built with Cursor AI; open source on GitHub.

Watched for 8 days · last checked 2d ago

Details →

An open-source MCP server that lets AI agents compare model pricing and call multiple AI provider APIs (text, image, video, audio) directly.

Open source
What to know
How it works
Ships 31-77 tools covering text, image, video, audio, embeddings and translation APIs via MCP
Pricing
Open source
Best for
Developers building MCP agents that need to call multiple AI model APIs

Watched for 4 days · last checked 3d ago

Details →

An open-source Python library that logs AI model inputs/outputs locally for audit trails without touching model weights.

Domain registered 3 months ago

Works offlineOpen source
What to know
How it works
Instruments scikit-learn/XGBoost/LightGBM inference, storing only inputs/outputs in a local SQLite queue
Pricing
Open source, pip install
Best for
Regulated finance teams needing audit trails without sharing model weights

Watched for 6 days · last checked today

Details →

An open-source Node.js library that wraps your OpenAI and Anthropic calls to enforce spending limits and log usage locally, with no telemetry. For developers guarding against runaway agent costs.

Open source
What to know
How it works
An open-source Node.js library that wraps OpenAI and Anthropic SDK calls to enforce hard spending limits, block calls once a budget is reached, and keep a local audit log.
What's different
Sends no telemetry — the audit log stays local.
Pricing
Open-source.
Best for
Developers who want to guard AI agents against runaway API spend without adding a telemetry dependency.

Watched for 14 days · last checked today

Details →

Self-hosted, open-source email infrastructure for sending transactional email and campaigns from your own server with a developer API, instead of relying on a third-party email service.

Open sourceSelf-hosted
What to know
How it works
Sends transactional email, campaigns, and inbound mail from a self-hosted control plane, storing data in a single SQLite file and supporting SES, SMTP, direct MX, or a local sandbox.
Best for
Developers who want to run and own their email infrastructure rather than outsourcing it.

Watched for 7 days · last checked 6d ago

Details →

An open-source SDK that gives your AI agent a phone number in a few lines of Python or TypeScript, pitched as the self-hosted alternative to hosted voice-AI platforms like Vapi or Retell. Built for developers who want to own the stack.

Open source
What to know
How it works
An open-source SDK that gives an AI agent a phone number in a few lines of Python or TypeScript, using Twilio, Telnyx or Plivo as the underlying carrier.
What's different
Pitched as the self-hosted alternative to hosted voice-AI platforms like Vapi or Retell, for builders who want to own the stack.
Pricing
Open source, MIT licensed.
Best for
Developers building voice AI agents who want to self-host rather than rely on a hosted platform.

Watched for 13 days · last checked 7d ago

Details →

An open-source declarative language for generating documents from one definition, compiling to HTML, PDF and Excel. A developer infrastructure tool for structured documents, not a spreadsheet replacement.

Domain registered 16 days ago

Open source
What to know
How it works
An open-source declarative language and intermediate representation for documents that compiles one document definition into HTML, PDF and Excel output, keeping business logic separate from presentation.
What's different
Replaces embedding programming logic into templates with a compact semantic syntax that Python applications and AI agents can generate directly.
Best for
Developers building document-generation pipelines who need one definition to produce multiple output formats.

Watched for 14 days · last checked today

Details →

Turns a Figma frame link into baseline Swift UIKit code for AI coding agents like Cursor, Claude or Codex to build from. An open-source developer tool for iOS engineers, not a mobile app itself.

Open source
What to know
How it works
Give an AI coding agent a Figma frame link and it builds a clean cached design package, then generates baseline Swift UIKit code for Cursor, Claude, or Codex, with support for custom color/font/icon maps, base classes, full-screen coverage gates, and buffering against Figma 429 rate limits.
What's different
Works from a Figma link instead of screenshots or a raw file dump; open source, so you own the wiring for production APIs.
Best for
iOS engineers using AI coding agents to turn Figma designs into UIKit code.

Watched for 13 days · last checked 7d ago

Details →

An open-source TypeScript SDK for spinning up sandboxes across providers like Vercel, E2B, Daytona and Upstash with one syntax, for developers building agent tooling.

Domain registered 12 days ago

Open source
What to know
How it works
An open-source TypeScript SDK for spinning up sandboxes with one syntax across multiple providers — Vercel, E2B, Daytona, Upstash and others — with integrations for tools like AI SDK, Eve and Mastra, plus included agent skills.
What's different
One consistent syntax across different sandbox providers instead of learning each provider's own API.
Pricing
Open source, MIT licensed.
Best for
Developers building agent tooling who need sandbox environments across multiple providers.

Watched for 11 days · last checked 5d ago

Details →

Inbix

Live

Open-source, Cloudflare-hosted email infrastructure for developers: disposable inboxes, webhook automation and REST/SDK/MCP access, aimed at testing and CI/CD pipelines.

Open source
What to know
How it works
Open-source, Cloudflare-native email infrastructure with disposable inboxes, real-time email receiving, webhook automation, and REST APIs, SDKs and MCP integration.
What's different
Open-source and Cloudflare-native, avoiding reliance on proprietary email infrastructure.
Best for
Developers needing email infrastructure for testing, CI/CD, or AI agents.

Watched for 11 days · last checked 5d ago

Details →

RAI

Live

A self-hostable AI chat platform that routes queries to the cheapest LLM and adds live market data, positioned as an alternative to ChatGPT or Claude you run yourself. For developers and cost-conscious teams.

FreeOpen sourceSelf-hosted
What to know
How it works
A self-hostable, open-source AI chat platform that runs on your own infrastructure, integrates live financial market data into chat, and routes each query to the best/cheapest LLM automatically across OpenAI, Anthropic, SiliconFlow and others.
What's different
Self-hosted with full data ownership and no vendor lock-in, plus intelligent model routing claimed to cut API costs by up to 60% versus using a single provider.
Pricing
Free forever to self-host, with Free / Pro / MAX tiers and per-model quotas.
Best for
Developers and cost-conscious teams who want a ChatGPT/Claude alternative running on their own infrastructure.

Watched for 14 days · last checked 8d ago

Details →

An open-source Python agent runtime, installed with one pip command, with a local cache that skips repeat LLM calls — pitched as a lighter alternative to LangGraph for developers.

Open source
What to know
How it works
An open-source agent graph runtime with a BSP scheduler and a local semantic cache that skips redundant LLM calls when a similar routing request already happened, installed with a single pip command.
What's different
Positioned as a lighter, non-wrapper alternative to LangGraph, with a local cache to cut LLM call costs.
Pricing
Open source (Apache-2.0).
Best for
Developers building LLM agent pipelines who want to reduce redundant model calls.

Watched for 17 days · last checked 10d ago

Details →

An open-source SDK that serves weather, ocean and elevation data as map tiles with values baked into the pixels, so you can restyle colormaps or switch to contours client-side without refetching. For developers.

FreeOpen source
What to know
How it works
Serves weather, ocean and elevation data as map tiles with the physical values baked directly into the pixels and decoded on the GPU, so you can change colormaps, switch to wind streamlines or contours, or re-scale client-side without refetching.
What's different
One open-source SDK works across MapLibre, Mapbox, Leaflet, OpenLayers, deck.gl and React, and the tile format is documented so you can decode it yourself without being locked to their renderer.
Pricing
Transparent pricing with a free tier.
Best for
Developers building map-based visualizations of weather, ocean or elevation data.

Watched for 15 days · last checked 1d ago

Details →

An open-source Python backtesting engine that traces trading signals through weights, orders, fills, and performance for reproducible research, for quant developers, instead of building a custom backtester from scratch.

Domain registered 19 months ago

Works offlineOpen source
What to know
How it works
Supports vectorized research or order-aware simulation with transaction costs, walk-forward testing, 80+ metrics, and 25+ charts; runs locally, with optional managed market data through an API.
Pricing
Open-source and runs locally; managed market data available through a paid API.

Watched for 13 days · last checked 9d ago

Details →

Open-source API that compresses prompts before OpenAI, Claude, Gemini or RAG calls, cutting token costs by about 65% while keeping the important content. For developers wiring it into their own LLM calls.

Open source
What to know
How it works
An open-source API that compresses prompts before they're sent to OpenAI, Claude, Gemini, RAG, chatbot, or agent calls, stripping tokens while preserving the evidence needed to answer correctly.
What's different
Claims to remove more than 65% of tokens on average while preserving over 98% of answer-critical content.
Best for
Developers wiring their own LLM calls who want to cut token costs without integrating a full new pipeline.

Watched for 17 days · last checked 11d ago

Details →

An open-source, self-hostable observability platform for developers to collect errors, events, sessions, and analytics via custom SDKs and view them in a multi-tenant dashboard.

Domain registered 26 days ago

Open sourceSelf-hosted
What to know
How it works
Custom SDKs send errors, events, sessions, and analytics data to a self-hosted, multi-tenant dashboard with organization/project management, API keys, and usage metering.
Best for
Developers who want self-hosted, open-source production observability instead of a third-party SaaS.

Watched for 11 days · last checked 5d ago

Details →

Open-source voice AI API for building production voice agents that receive and make phone calls, self-hostable or deployable to Vercel.

Open source
What to know
How it works
Built in Next.js on Vercel tooling: Vercel Workflows for post-call analysis, AI Gateway for realtime models, and Vercel Blob for call recordings, exposed as a REST API similar to Vapi or Retell.

Watched for 11 days · last checked 5d ago

Details →

Open-source TypeScript library for defining type-safe, reusable AI prompts with schema validation — a developer tool for building LLM features, not a cost-saving swap.

Open source
What to know
How it works
An open-source TypeScript toolkit for defining AI prompts with type-safe schemas, validating inputs before LLM calls, composing reusable prompt blocks, and compiling prompts for multiple AI providers.
Pricing
Open-source, MIT licensed.
Best for
Developers building production LLM features who want maintainable, schema-validated prompt code instead of ad-hoc prompt strings.

Watched for 11 days · last checked 5d ago

Details →

A self-hosted agent that lets you talk to any REST API in plain English through its MCP layer, using your own LLM such as Ollama — built for developers.

Open sourceSelf-hosted
What to know
How it works
A self-hosted agent with an MCP layer that lets you talk to any REST API in natural language, using your own LLM (e.g. Ollama) instead of a hosted one.
What's different
Bring-your-own-LLM and fully self-hosted, so API credentials and data stay under your control.
Best for
Developers who want to interact with REST APIs conversationally while keeping their own LLM and data ownership.

Watched for 18 days · last checked 2d ago

Details →

Aiden

Live

A physical open-source USB device that watches your screen and can operate your phone or computer by voice, entirely offline with zero data collection. Built for makers and privacy-focused tinkerers.

Works offlineOpen sourceSelf-hosted
What to know
How it works
A physical USB device that plugs into any phone or computer, watches the screen over HDMI, and sends taps and keystrokes over USB HID to operate real apps the same way a person would — no app install, jailbreak, developer mode, or API required. It captures the screen, sends it to an AI model of your choice, decides the next action, and repeats until the task is done; voice mode runs on-device.
What's different
Works one layer below software integrations, so it can operate any app you can see and tap, including ones with no API or accessibility layer.
Best for
Makers and privacy-focused users who want to automate phone or computer tasks entirely offline without granting an app API access.

Watched for 18 days · last checked 2d ago

Details →

Turns a CSV into a sellable data product, a directory, API, or feed, with Stripe checkout and SEO pages wired in, and lets coding agents run and fix it on a nightly loop before you approve changes. Self-hosted, MIT licensed, built for developers.

Open sourceSelf-hosted
What to know
How it works
Turns a CSV into a sellable data product — a directory, research database, API, or feed — with search, Stripe checkout, and SEO pages already wired in; a nightly agent loop checks traffic and revenue, drafts fixes, and stops for approval before anything goes live.
What's different
Agent-operable end to end via a --json CLI, MCP, and a SKILL.md that coding agents like Claude Code or Codex can read; self-hosted and MIT licensed.
Pricing
One payment; you keep your data and your own Stripe account.
Best for
Developers who want to turn a dataset into a paid product without building the commerce and SEO scaffolding themselves.

Watched for 13 days · last checked 7d ago

Details →

An open-source C++/Python framework for running your own crypto funding-rate arbitrage and market-making bots on your own servers instead of a cloud platform — used at institutional trading desks.

Open sourceSelf-hosted
What to know
How it works
An open-source C++/Python framework for running crypto funding-rate arbitrage and low-latency market-making bots, with Python for strategy logic and C++ for execution; installable via pip.
What's different
Strategies, API keys and execution run entirely on your own infrastructure rather than a cloud bot platform, and it offers enterprise private deployment.
Best for
Institutional trading desks and developers wanting to self-host crypto trading strategies rather than use a hosted bot platform.

Watched for 13 days · last checked 7d ago

Details →

Patter

Live

An open-source, self-hosted SDK that gives your AI agent a real phone number for calls, working with Twilio, Telnyx or Plivo. Built for developers who want to own the voice-AI stack rather than use a hosted vendor.

Open sourceSelf-hosted
What to know
How it works
Connects an AI agent to a real phone number in about 4 lines of Python or TypeScript, letting you pick a carrier (Twilio, Telnyx, or Plivo) and voice stack, then run it on your own laptop with a self-hosted dashboard showing each call's cost and latency.
What's different
MIT-licensed and self-hosted, so the developer owns the voice-AI stack instead of routing through a hosted vendor.
Pricing
MIT licensed (free/open source).
Best for
Developers building voice AI agents who want to own the stack rather than use a hosted vendor.
Watch out
Requires a separate account with a carrier such as Twilio, Telnyx, or Plivo to actually place calls.

Watched for 15 days · last checked 9d ago

Details →

An open-source tool that generates and keeps JSON schemas in sync with your code, for developers building and validating APIs. It doesn't offer its own API despite the framing.

Open source
What to know
How it works
Automatically generates JSON schemas from your code and keeps them synchronized with your models.
What's different
Open-source and focused on keeping schemas in sync with code changes rather than a one-time generation.
Best for
Developers building and validating APIs who need schemas to stay current with their models.

Watched for 15 days · last checked 9d ago

Details →

Aurora

Live

Runs real statistical and causal analysis locally instead of letting an LLM guess, citing every result to its source. Built for technical users via its MCP server and Python SDK.

Works offlineOpen source
What to know
How it works
Runs 24+ research-grade quantitative methods locally on a dataset you drop in — anomaly detection, causality, regime detection, forecasts — with every finding cited to the method and source behind it. Includes an MCP server and Python SDK for AI agents to call it for verified math.
What's different
Computes real statistics locally instead of having an LLM guess at numbers, with a "0 fabricated" indicator guaranteeing no invented figures.
Pricing
Open source, Apache 2.0.
Best for
Developers and technical users who need verified quantitative analysis, including AI agents that call it programmatically.

Watched for 15 days · last checked 9d ago

Details →

PWAA

Live

Packs an entire web app or documentation site into a single offline ZIP file that runs without breaking on JS/CORS restrictions, unlike typical offline export formats.

Works offlineOpen source
What to know
How it works
Maps a ZIP to memory and spins up a local HTTP server so the packed app 'thinks' it's online
What's different
Open source, avoids CORS breakage that plagues other offline formats

Watched for 5 days · last checked 4d ago

Details →

Tokyo

Live

An open-source framework that generates an agent-friendly CLI for your app directly from its API spec.

Open source
What to know
How it works
Points at your API spec and generates routes/commands, plus deployment and auto-rebuild tooling
What's different
open source, built specifically so AI agents can drive your CLI
Best for
Developers who want their API usable by coding agents via CLI

Watched for 5 days · last checked 3d ago

Details →

A free comparison tool that matches businesses to warehouse, cleaning, or restaurant robots by fit and lease-vs-buy options.

Domain registered 24 days ago

FreeOpen source
What to know
Pricing
Free.
Best for
Business owners deciding which commercial robot to buy or lease.

Watched for 6 days · last checked 4d ago

Details →

Sequa

Live

Open-source library that records real LLM API calls once and replays them deterministically to make integration tests for AI apps fast and repeatable.

Open source
What to know
How it works
record LLM calls once, replay them in tests instead of hitting the API again
What's different
turns slow, non-deterministic LLM test runs into millisecond replays
Pricing
open source

Watched for 6 days · last checked 5d ago

Details →

A REST API for developers to build personal life-tracking apps (mood, sleep, exercise) with MongoDB storage instead of building their own backend.

Open source
What to know
How it works
FastAPI/Python backend with async endpoints, automatic data validation, interactive docs, and permanent storage in MongoDB.
Best for
developers building personal life-tracking applications.

Watched for 12 days · last checked 9d ago

Details →

An open-source API for programmatically posting to Bluesky, X, Pinterest (and soon Meta and LinkedIn) in one call, with a native MCP server for Claude and Cursor. Built for developers and AI agents automating social posting.

Domain registered 3 months ago

Open source
What to know
How it works
A single API call publishes a post to Bluesky, X, and Pinterest, with Meta and LinkedIn in review; it runs preflight checks against roughly 80 platform-specific rules before posting and includes a native MCP server for Claude, Cursor, and Claude Code.
What's different
Open source (Apache 2.0), with pinned API versions, default idempotency, and transparent error envelopes.
Best for
Developers and AI agents that need to automate posting to multiple social platforms from code.

Watched for 13 days · last checked 10d ago

Details →

ICTPBX

Live

An open-source, multi-tenant PBX platform (FreeSWITCH plus a REST API and Angular dashboard) that lets telecom service providers run their own white-label cloud phone system.

Open source
What to know
How it works
An open-source, multi-tenant PBX platform pairing the FreeSWITCH media engine with the ICTCore REST API and an Angular dashboard, letting service providers provision domains, dialplans, extensions and routing entirely through the API.
What's different
Runs entirely on infrastructure you control rather than a hosted PBX, with no per-user licensing costs when scaling from a handful of extensions to thousands of seats.
Best for
Telecom service providers who want to run their own white-label cloud phone system rather than reselling a hosted PBX.

Watched for 18 days · last checked 11d ago

Details →

ICTFAX

Live

Open-source, white-label fax server software that lets internet phone and VoIP providers offer branded online fax services to their own customers.

Open source
What to know
How it works
An open-source, multi-tenant, white-label fax server built on Angular, Freeswitch and ICTCore, providing email-to-fax, fax-to-email, and web-to-fax gateways with REST APIs and support for T.38 and G.711 faxing.
What's different
Lets internet phone/VoIP providers offer their own branded outbound and inbound online fax service, similar to eFax or myfax, under their own name.
Best for
VoIP and internet telephony service providers who want to resell branded fax services, including healthcare organizations needing HIPAA-compliant encrypted fax.

Watched for 18 days · last checked 11d ago

Details →

srvly

Live

An open-source dashboard for monitoring and managing your own VPS servers, with a REST API your AI coding agent can use to handle deployments and debugging. Built for developers running their own infrastructure.

Open source
What to know
How it works
A unified dashboard for monitoring CPU, RAM, disk and health across your own VPS servers, with a REST API that lets an AI agent handle deployments and debugging, plus 1,668+ open-source apps ready to deploy.
What's different
Open-source and built around letting an AI agent operate deployments through its REST API rather than a human-only dashboard.
Best for
Developers managing their own server infrastructure who want AI-agent-driven deployment and monitoring.

Watched for 18 days · last checked 9d ago

Details →

Open-source platform for modeling and running BPMN/DMN business workflows with REST APIs and monitoring tools — built for developer and technical ops teams.

Open source
What to know
How it works
An open-source workflow orchestration platform for modeling, running, monitoring, and operating BPMN and DMN business processes, with REST APIs, Tasklist, Cockpit, and Admin tools.
What's different
Open-source with enterprise-ready support options available.
Best for
Developer and technical operations teams building and running BPMN/DMN business process workflows.

Watched for 18 days · last checked 2d ago

Details →

ExifErase

Not responding

Strips hidden GPS and camera metadata from photos entirely in your browser before you share them, with no uploads.

No sign-upOpen sourceNo tracking
What to know
How it works
Client-side processing using the Canvas API; supports JPEG, PNG, WebP, and HEIC
Pricing
Open source

Watched for 5 days · last checked today

Details →

Measures how well AI writes code against your library's current API instead of guessing AI-friendliness.

Open source

Watched for 1 day · last checked 1d ago

Details →

Managed cloud that deploys open-source AI agents in one click, each in its own isolated VM with snapshots and bring-your-own-model.

Domain registered 30 days ago

Open source
What to know
How it works
one-click deploy; each agent runs in a kernel-isolated VM
What's different
automatic/manual snapshots make agents recoverable
Best for
developers running open-source AI agents

Watched for 6 days · last checked today

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A single API call returns live, cryptographically signed data across 87 sources so AI agents and software can verify what they're consuming — a developer-facing trust layer, not a consumer app.

No sign-upOpen source
What to know
How it works
A single keyless API call returns structured JSON for 87 live tools across 19 verticals; each datapoint carries its source, licence, timestamp and an Ed25519 signature, optionally Bitcoin-anchored.
What's different
Data is cryptographically verifiable rather than just scraped and cited, and it works without signup or an API key via an MCP endpoint or batch POST.
Best for
Developers building AI agents or software that need to independently verify the live data they consume.

Watched for 17 days · last checked today

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An open-source Laravel package for building Excel, CSV, and PDF exports with filters, permissions, and streaming.

Open sourceCan export my data
What to know
How it works
An open-source Laravel package for building Excel, CSV, and PDF exports from a single definition, with filters, relationships, queues, permissions, and high-performance streaming.
Pricing
Open source.

Watched for 8 days · last checked 6d ago

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An open-source desktop AI app that works inside document editing, mail merge, and receipt reading, running fully locally on Mac and Linux.

Domain registered 1 month ago

Works offlineOpen source
What to know
How it works
Brings AI into everyday tools like document editing, mail merge, and receipt reading, running fully locally so files never leave your machine.
What's different
Open source (AGPL-3.0), fully forkable, built with Tauri, Rust, React, and SQLite.
Watch out
Runs on Mac and Linux only.

Watched for 10 days · last checked 4d ago

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Never miss a beat! Unified monitoring for cron jobs, workers, and uptime.

FreeOpen source

First seen today · last checked today

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Open-source, Lightweight HTTP client & API testing framework

Open source

First seen today · last checked today

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A continuous security scanner that re-checks targets on a schedule and alerts only on new vulnerability findings.

Domain registered 6 months ago

FreeOpen source
What to know
How it works
Schedules recurring security scans (daily/weekly/monthly) with 50+ detectors across recon, web, API, and mobile, alerting via email/Discord/Slack only on new findings versus the previous run; tracks attack surface over time and ships a CLI plus GitHub Action to fail CI builds on new criticals.
What's different
Alerts only on new findings instead of re-reporting everything on each run, and remembers triage decisions across re-scans.
Pricing
Free, open source.

Watched for 9 days · last checked 7d ago

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A self-hosted MRR and growth dashboard you deploy yourself for a one-time $49 instead of $108/month for Baremetrics. Built for indie hackers running their own infrastructure, not a plug-and-play SaaS.

Open sourcePay onceNo subscriptionSelf-hosted
What to know
How it works
Tracks MRR, churn rate, ARPU, Net New MRR, customer lifetime value, and 12-month revenue trends, with revenue data added manually or via API. Self-hosted on your own Railway + Supabase stack, works entirely offline with no third-party integrations required.
What's different
Sold as a one-time $49 purchase with full MIT-licensed source code instead of Baremetrics' $108/month subscription.
Pricing
One-time $49 purchase, no recurring fees.
Best for
Indie hackers at $0-$5k MRR who want a real growth dashboard before paying for Baremetrics.

Watched for 18 days · last checked today

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Open-source agentic AI fuzzer that finds bugs across languages and generates verified security patches automatically.

Open source
What to know
How it works
Uses a multi-agent LLM swarm to analyze source code or decompiled binaries, synthesize payloads, reproduce crashes and generate verified security patches automatically.
What's different
Supports C/C++, Rust, Python, Go, JS/TS and multiple LLM providers including Gemini, Claude, OpenAI and Ollama.
Pricing
Free, open-source.
Best for
Security researchers and developers doing automated fuzzing and patching.

Watched for 3 days · last checked 1d ago

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Open-source, local-first desktop app for training, evaluating and explaining ML models without cloud services.

Works offlineOpen source
What to know
How it works
Local-first desktop app for importing data, training predictive and generative models, evaluating them, and applying explainability techniques, without cloud services, external authentication, or API keys.
Pricing
Open source.

Watched for 3 days · last checked 2d ago

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An MCP server that gives Claude/ChatGPT/Gemini direct access to SEC filings, earnings call transcripts, and congressional trading data, citing sources.

FreeOpen source
What to know
How it works
90 tools + REST API over 5,000+ US stocks: filings, self-captured earnings call transcripts, KPIs, insider/congress trades.
What's different
Cites every answer to the source filing and is built to refuse guessing.
Pricing
Free tier: 100 calls/day.
Best for
Developers building financial research tools or analysts using AI assistants for filings research.

Watched for 6 days · last checked 5d ago

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A self-hosted license-key manager for indie hackers and digital product sellers, sold as a $49 one-time purchase instead of a $29/month subscription elsewhere.

Open sourcePay onceSelf-hosted
What to know
How it works
You generate license keys for your products, set activation limits, and validate keys via a simple API endpoint that buyers hit to check validity. Self-hosted on your own Railway + Neon stack, built with React 19, Express 5, PostgreSQL, and Drizzle ORM, deployable in under 15 minutes.
What's different
Sold as a one-time $49 purchase with full MIT-licensed source code instead of Lemon Squeezy's $29/month license key management fee.
Pricing
One-time $49 purchase, no recurring fees.
Best for
Gumroad or Lemon Squeezy sellers who want license key validation without a monthly SaaS fee.

Watched for 18 days · last checked 2d ago

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Toki

Live

Self-hosted, open-source REST API that exposes MyAnimeList data through 70+ read-only endpoints, requiring no database or API key.

Open sourceSelf-hosted
What to know
How it works
Exposes public MyAnimeList data through 70+ read-only JSON REST API endpoints covering anime, manga, characters, users, rankings, seasons, reviews, and recommendations; written in Go, runs as a single binary with no database, API key, OAuth flow, or MyAnimeList developer credentials required.
What's different
Built as a lightweight alternative to Jikan.
Pricing
Open source, free to self-host.

Watched for 9 days · last checked 6d ago

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A Python SDK for scripting multi-agent coding workflows, letting different AI coding agents implement, review, and compete on tasks in isolated git worktrees.

Open source
What to know
How it works
Lets developers script the full development process in Python so agents like Claude Code and Codex implement independently, review one another, revise, run neutral tests, compete, and safely apply the winner, each working in an isolated Git worktree.
What's different
Open source, includes 40 multi-agent LLM paper workflows.
Best for
Developers scripting multi-agent coding workflows.

Watched for 10 days · last checked 7d ago

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A white-label predictive dialer and call-center platform combining voice, SMS and fax with CRM and a REST API, built for businesses running outbound campaigns.

Open source
What to know
How it works
A white-label, multi-tenant predictive dialer and call-center platform built on open-source Asterisk, combining predictive/progressive/power/preview/manual dialing modes with drag-and-drop IVR, a REST API, and unified voice, SMS, fax and email in one system.
What's different
Built-in AMD, DNC and TCPA-aware compliance thresholds across five dialing modes, used by 1500+ businesses per the listing.
Best for
Businesses and call centers running outbound predictive-dialing campaigns alongside inbound IVR routing who want one multi-tenant platform instead of separate tools.

Watched for 18 days · last checked 11d ago

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14,000+ instant search shortcuts from your address bar

Open source

First seen today

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