Tools that work with Twilio

We're tracking 8 of these, and 8 are still live today.

Watching this group for 14 days · how we check

This week1 new arrival

Narrow it down

Doesn't mention AI1Free2Open source2

GhostAPI

Live

A local sandbox that gives AI coding agents provider-shaped mock APIs for Stripe, Twilio, GitHub, and OpenAI on localhost, with a live traffic dashboard, so agents can run generated code without touching production keys.

What to know▼
How it works
Runs local mock endpoints shaped like Stripe/Twilio/GitHub/OpenAI APIs, with MCP controls, a traffic dashboard, chaos-mode testing, and secret masking; started via a single command.
Best for
Developers who let AI coding agents write and execute code against third-party APIs and want to avoid live keys.

Watched for 6 days · last checked 4d ago

Details →

PyNuxt

Live

A FastAPI + Nuxt SaaS boilerplate with pre-built auth, billing, and Web3 integrations plus agent-context files aimed at speeding up AI-assisted coding tools like Claude Code.

Domain registered 6 months ago

What to know▼
How it works
A production-ready boilerplate combining a FastAPI backend with a Nuxt frontend, with pre-built auth, billing, Web3 capabilities, and cloud deployment.
What's different
Includes structured agent files (CLAUDE.md, SPEC.md, DESIGN.md) so tools like Claude Code are effective from day one; integrates Stripe, SendGrid, Twilio, Google OAuth, GitHub OAuth, and Web3 wallet auth.

Watched for 7 days · last checked 1d ago

Details →

Patter SDK

Live

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 12 days · last checked 6d ago

Details →

SMTPPai

Live

A free WordPress plugin for routing outgoing mail through multiple SMTP providers like Amazon SES and SendGrid.

Domain registered 2 months ago

Free
What to know▼
How it works
A WordPress SMTP plugin that routes mail through 15+ providers like Amazon SES and Mailgun, with backup connections and email logs.
Pricing
100% free.

Watched for 9 days · last checked 3d ago

Details →

AI Builder Week by Product School

Live

A free five-day live workshop series from Product School (Aug 3-7) with speakers from companies like Slack, Stripe and Twilio, plus a discount on a paid course afterward.

Free
What to know▼
How it works
A free, live five-day workshop series (August 3-7) with 10+ hands-on sessions led by product leaders from companies like Slack, Stripe, Twilio, Atlassian, Miro and Webflow. Register once and join as many sessions as you want.
What's different
No upsells or paywalls to attend, and each attendee gets $1,000 off any Product School course afterward.
Pricing
Free to attend.
Best for
Product people who want to build something hands-on alongside practitioners from well-known tech companies.

Watched for 12 days · last checked 2d ago

Details →

FetchSandbox

Live

Lets developers and AI coding agents test API integrations beyond the first response — webhooks, retries, async flows, failures — against sandboxed mock versions of 60+ real APIs, connected via MCP.

What to know▼
How it works
Lets developers and AI coding agents test API integrations beyond the first response — webhooks, retries, state changes, async workflows and failure scenarios — against sandboxed versions of 60+ real APIs (Stripe, GitHub, Clerk, Resend, Twilio, Descope, OpenAI) via MCP.
What's different
Reproduces the real bug and remembers what breaks so agents catch it again before production, rather than stopping at a 200 OK check.
Best for
Developers and AI coding agents (via Cursor, Claude Code, Windsurf, VS Code, Codex) who need to test failure paths without burning real API quota.

Watched for 14 days · last checked 8d 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 14 days · last checked 8d ago

Details →

Sentinel Factory

Live

Lets marketing agencies auto-build a white-label AI agent for each small-business client from just a URL — it books appointments, captures leads and answers on WhatsApp. Built for agencies, not the SMBs themselves.

What to know▼
How it works
A white-label, multi-tenant platform that lets marketing agencies deploy an AI agent for an SMB client by pasting the client's business URL — it auto-extracts services, pricing and hours, then answers questions 24/7, books appointments via Google Calendar, captures leads, and responds on WhatsApp and a web widget. An Autopilot engine scrapes Google Maps to auto-build demo bots and generate WhatsApp outreach proposals for prospects.
What's different
Automates both agent setup (from a URL, in under 60 seconds) and prospecting (auto-built demo bots and outreach), rather than just providing a chatbot builder.
Best for
Marketing agencies that want to deploy and sell AI agents to SMB clients without building each one manually.
Watch out
Described by the founder as pre-revenue and fully functional — no independent verification of its scale or reliability in production yet.

Watched for 14 days · last checked 2d ago

Details →

Tools that work with Twilio — the short answers

Every number here comes from our own daily check — not from a vendor list.

Tools that work with Twilio — how many are there?
Tablif is tracking 8 of them. 8 answered our check today.
Which ones are still maintained?
Tablif knocks on every door once a day and records the answer. 8 of these 8 responded on the latest run, so that number is what "still here" means on this page — not a review score.
Are any of them free?
2 of the live ones say so in their own words. Tablif records the claim the product makes; we don't verify pricing.
Any open-source options?
2 of the live ones on Tablif mention being open source.
What's the newest one?
GhostAPI — Tablif first saw it 7 days ago.
Did a person actually look at these?
8 of them Tablif opened and read, then wrote a one-line summary in our own words instead of reusing the founder's tagline. The rest carry keyword labels we haven't confirmed by reading yet — and we say so rather than hiding it.