Documentation

Everything you need to build with DeepInquiry — the API, the verification pipeline, the embeddable widget, and the CiteSig signature protocol.

Getting started

Verification

Verification methodology →
How we grade facts on source independence — the five-layer pipeline that clusters wire-service duplicates, drops mirrors, and computes a 0–1 independence score.
Fact tiers
Standard-quality: single-source verified. Verified: two or more independent sources. Audited: flagged for opt-in audit-mode consumers.

API reference

GET /api/v1/facts/random
Returns one random verified fact with citations.
GET /api/v1/facts?category=X&era=Y&limit=N
Filtered list. Supports pagination via cursor.
GET /api/v1/facts/:id
Single fact lookup with full source graph and CiteSig signature.
GET /api/v1/topics
List of available topic categories.

Authentication: Authorization: Bearer YOUR_API_KEY header. Rate limits returned in X-RateLimit-* response headers.

Embed widget

Free embeddable widget →
Drop a rotating verified-fact widget into any site. One line of HTML. Free for non-commercial use.

CiteSig protocol

Every DeepInquiry fact carries a CiteSig signature — an open, tamper-evident proof of provenance you can verify offline.

citesig.org — protocol homepage →
Spec, verifier extension, and reference implementations.

Legal & policies

Docs — DeepInquiry · DeepInquiry