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>log in to commentI built DeepInquiry to give anyone a library of AI‑verified facts that are cross‑checked, cited, confidence‑scored and cryptographically signed, so you can trust the claim without trusting us. It currently holds 2,847 verified facts across many topics. I'd love your thoughts on how it works.
- Verified facts, cited, scored, and cryptographically signed
- Free fact‑of‑the‑day widget for easy embedding
- API returns verified factual claims as JSON
- Free tier includes 2500 calls/month
- Embeddable widget for websites and newsletters
DeepInquiry provides an API of AI-verified, cryptographically signed facts with sources and confidence scores.
- for
- Developers building RAG, AI agents, or any app that needs trustworthy factual data.
- pricing
- freemium
Key features
- Verified facts — Every claim is cross-checked, cited, dated and tier-scored before being returned.
- Cryptographic signatures — Each fact includes a CiteSig Ed25519 signature for independent verification.
- Source independence scoring — Facts are graded by how distinct their source groups are across websites and owners.
- Tiered verification — Facts are labeled Gold, Silver or Bronze based on source diversity and quality.
- Rate-limit tiers — Free (30 req/min) up to Scale (1 000 req/min) plans to match traffic needs.
- Audit mode & private endpoints — Enterprise plan adds audit mode, SLA, private endpoints and dedicated Slack support.
Use cases
- Enrich RAG pipelines with auditable, cited facts.
- Provide AI agents with ground-truth answers for compliance-sensitive domains.
- Display verifiable facts in educational or news apps with source trails.
- Power chatbots that need to cite sources for user trust.
DeepInquiry pricing
- Free$0500 requests / month · 30 requests / minute · Silver & Gold tiers · Cited sources
- Starter$59/month10,000 requests / month · 60 requests / minute · Silver & Gold tiers · Email support
- Growth$219/month50,000 requests / month · 300 requests / minute · Gold, Silver & Bronze · Priority email support
- Scale$719/month250,000 requests / month · 1,000 requests / minute · All tiers + audit mode · Shared Slack channel
DeepInquiry vs alternatives
 DeepInquiry |  Perplexity |  Replicate |  Ollama |  Midjourney | |
|---|---|---|---|---|---|
| Best for | Verified fact corpus for AI applications | Cited AI answer engine | Model hosting and fine-tuning | Running open models locally | AI image generation |
| Pricing | Freemium | Subscription | Subscription | Free | Subscription |
| DevHunt upvotes | 1 | 0 | 0 | 0 | 0 |
| Launched | Oct 2026 | — | — | — | — |
- DeepInquiry vs Perplexity: Provides AI answers with cited sources but not a verified fact corpus with cryptographic signatures.
- DeepInquiry vs Replicate: Runs and fine-tunes AI models via API; does not focus on verified factual data.
- DeepInquiry vs Ollama: Local LLM execution platform, no external verified fact service.
- DeepInquiry vs Midjourney: Generates images, unrelated to factual verification.
DeepInquiry FAQ
How is a “verified fact” different from a normal AI response?+
Verified facts are graded on source independence, grouped by website and parent company, and labeled Gold/Silver/Bronze, whereas typical AI answers only give a probability.
Can I cancel any time?+
Yes, you can manage your subscription from the dashboard and cancel, upgrade or downgrade without forced yearly contracts.
What happens if I exceed my monthly quota?+
The API returns a 429 response with a Retry-After header; you can upgrade instantly from the dashboard to raise the quota.
Do you offer a free trial?+
The Free plan acts as a permanent trial, providing 500 requests per month at no cost.
What does Enterprise include?+
Custom monthly quota, private endpoints, a signed uptime SLA, dedicated Slack support and audit-mode access to flagged unverified claims.
Summarized by DevHunt from deepinquiry.ai · Oct 8, 2026. Details may change; check the official site.
