| What it does | An API that turns chat questions into sourced, typed UI cards
| Independent measurement of x402 payments for AI agents
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| Stage | Established
| Startup
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| Founded | 2011
| Not given
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| Based in | DE
| JP
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| Pricing model | Freemium
| Not given
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| Pricing | Free: $0/month, 50 tokens a day. Starter: $9/month, 1,000 tokens a day. Pro: $49/month, 10,000 tokens a day. Scale: $199/month, 50,000 tokens a day. Token packs: 5,000 tokens for $10, 25,000 tokens for $40, 100,000 tokens for $120.
| Free: US$0 per month (1,000 lookups a month); Pro: US$49 per month (50,000 lookups a month); Scale: US$199 per month (500,000 lookups a month)
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| Key features | - Card types for weather, nutrition, recipes, and comparisons
- Integration with Vercel AI SDK
- Web component for rendering answer cards
- Source attribution for all answers
- Pay only for matched answers, questions are free
- No user conversation storage or message text logging
- Versioned card schemas that never break existing code
- Infrastructure running in Germany
| - API key management with free tier at 10 requests per minute
- Multi-language SDK support including curl, TypeScript, Python, MCP and no-code n8n
- L0, L1 and L2 measurement layers for payment verification
- On-chain settlement re-verification across multiple blockchains
- Trust score and decision API (ALLOW, WARN, BLOCK)
- Public impact ledger recording all purchases and deliveries
- Support for Base, Arc, Celo, Arbitrum One, Avalanche C-Chain, BNB Chain, Solana, Stellar, Tempo and XRPL
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| What makes it different | - Rich, sourced answer cards instead of text
- Model sees only text and sources, not the full card
- User privacy by design with no message storage
- Works with any AI SDK model that supports tool calling
| - Only service that buys from x402 endpoints with its own funds and publishes settle-through receipts
- Published methodology and measured error rates for transparency
- Non-custodial design that never holds customer funds or keys
- Free API tier for reads without key requirement
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 9 ▲ +2 (up) since last check | 27 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 2 |
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| Citation Flow (Majestic) | 23 | 23 |
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| Referring domains (Majestic) | 34 | 18 |
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WebKnox
vet402