DeepInquiry · House #32,491

What it is

Calls itself “fact API”.

• Calls itself: fact API

“A fact API that groups sources before counting”

Where it puts itself

Its one line of difference: “We're not another AI-quality dashboard. We're the verified corpus AI grades against.”

“We're not another AI-quality dashboard. We're the verified corpus AI grades against.”

What it costs

Monthly subscription. A free tier, free forever. Has an enterprise plan. Sales on request. No yearly plan. Prices quoted: $219 /month, $59 /month, $719 /month.

• Monthly: yes
• Yearly: no
• Free plan: free forever
• Price: $219 /month · $59 /month · $719 /month
• Enterprise plan: yes
• Contact sales: yes

“$219 /month”

“$59 /month”

Who it sells to

Sells to developers.

• Sells to: developers

“Built for RAG, agents, and grounded UIs. A natural upstream source of truth for any grounded AI workflow”

How it runs

A API. Hosted in the cloud. Offers an API. AI is a side feature.

• Kind: api
• Runs where: cloud / hosted
• API: yes
• AI role: a side feature

“A fact API that groups sources before counting”

“A verified fact corpus , served by API”

What it works with

Names CiteSig on its pages.

• Names: CiteSig

“CiteSig”

“DeepInquiry”

What it offers as proof

Live, no waitlist. Claims “2,827 facts”. Trying it asks for an email. Publishes docs.

• Number claimed: 2,827 facts
• Instant signup: yes
• Trial asks for: an email address

“Get API key”

“Free tier includes 500 requests/month. curl https://api.deepinquiry.ai/api/v1/facts/random \ -H "x-api-key: $DI_KEY"”