API pricing
Every request returns facts graded on source independence — not just source count. We cluster wire-service duplicates, drop Wikipedia mirrors, and rank each claim Gold / Silver / Bronze based on how distinct its underlying evidence is.Read the verification methodology →
Free
500 requests / month. Perfect for prototyping.
- ✓500 requests / month
- ✓20 requests / minute
- ✓Silver-tier and higher (the safest)
- ✓Cited sources on every fact
- ✓Confidence score & category tags
Starter
25,000 requests / month. For side projects and small production apps.
- ✓25,000 requests / month
- ✓60 requests / minute
- ✓Silver-tier and higher (the safest)
- ✓Cited sources on every fact
- ✓Confidence score & category tags
- ✓Cancel anytime, prorated
Pro
250,000 requests / month. Gold, Silver, and Bronze verified facts for content platforms and consumer apps.
- ✓250,000 requests / month
- ✓300 requests / minute
- ✓Gold + Silver + Bronze verified facts
- ✓Cited sources on every fact
- ✓Confidence score & category tags
- ✓Cancel anytime, prorated
Scale
2,000,000 requests / month. All quality tiers plus audit-mode access to flagged unverified claims.
- ✓2,000,000 requests / month
- ✓1000 requests / minute
- ✓Gold + Silver + Bronze + audit mode
- ✓Cited sources on every fact
- ✓Confidence score & category tags
- ✓Cancel anytime, prorated
Enterprise
Custom quota, private endpoints, SLA, and dedicated support.
- ✓Custom monthly quota
- ✓Custom rate limits
- ✓Gold + Silver + Bronze + audit mode
- ✓Signed uptime SLA
- ✓Private endpoints
- ✓Dedicated Slack support
Frequently asked
How is a "verified fact" different from a normal AI response?
Every fact is graded on source-independence — not just corroboration count. Our five-layer pipeline clusters wire-service duplicates, drops Wikipedia mirrors and aggregators, and computes a 0–1 independence score across the surviving sources. Facts are then labeled Gold, Silver, Bronze, or Unverified. Free and Starter plans return Silver and above only — the safest tier for consumer apps and widgets. Pro adds Bronze for content platforms doing broad discovery. Scale and Enterprise add opt-in audit mode with flagged unverified claims. See the verification methodology.
Can I cancel any time?
Yes. Manage your subscription from the dashboard — cancel, upgrade, downgrade, or update your card. No forced yearly plans.
What happens if I exceed my monthly quota?
You'll get a 429 response with a Retry-After header telling you when the quota resets. Upgrade in-flight from your dashboard to keep serving traffic — the new quota is available immediately.
What are the rate limits for?
The per-minute limits protect the service from runaway loops, not you. If you hit them accidentally, wait 60 seconds and retry — no penalty. Sustained traffic that needs a higher ceiling belongs on Pro (300 req/min) or Scale (1,000 req/min).
Do you offer a free trial?
The Free plan is our trial — 500 requests every month, permanently free. Ship a real integration on it, and upgrade only when your traffic outgrows the tier.
What does Enterprise include?
Custom monthly quota, private endpoints, a signed uptime SLA, dedicated Slack support, and audit-mode access to flagged unverified claims. Get in touch at api@deepinquiry.ai and we'll size a plan to your traffic.
What is Gold vs Silver vs Bronze?
Gold = three or more distinct source clusters, an independence score above 0.65, at least one primary or peer-reviewed source, and no citogenesis flags. Silver = at least two clusters and an independence score above 0.5. Bronze = at least one corroborating cluster past the primary. Unverified = below Bronze; never returned by default. Read the full spec in the methodology page.