DeepInquiry API

Every DeepInquiry fact is available as JSON. Auth by API key; usage is metered and logged.

Try the API now

No key and no sign-up. This runs a real request and shows exactly what your code would receive: the fact, its sources, its tier, a score, and a signature you can verify.

Press “Run request” to see the response.

The same call from your code, with a free key:

curl https://api.deepinquiry.ai/api/facts/random \
  -H "x-api-key: $DI_KEY"

Get a free API key → 500 requests a month. The demo shows gold and silver facts only, and limits how often it can run.

Endpoints

GET /api/v1/facts/random
One random verified fact
GET /api/v1/facts?category=X&era=Y&limit=N
Filtered list of facts
GET /api/v1/facts/:id
Single fact lookup with citations

Pricing

Free
500 calls/month · 30 req/min · Standard-quality facts · attribution required
Starter — $59/mo
10,000 calls/month · 60 req/min · Standard + verified facts · commercial use OK
Growth — $219/mo
50,000 calls/month · 300 req/min · Gold, Silver and Bronze facts
Scale — $719/mo
250,000 calls/month · 1,000 req/min · Bulk export + webhook alerts + shared Slack
Enterprise — Contact sales
Custom quota · SLA · dedicated infra · SSO/SAML · MSA/DPA

Requests over the monthly quota get a 429 response until the quota resets; upgrade any time from the dashboard.

See full pricing and subscribe →