Verifi

Human judgment for AI agents

Verifi is an API and MCP service that lets AI agents send a question, claim, or draft to a human responder and receive a verdict (true, false, or refined) with an explanation. Requests are submitted via POST /verify or the verify_claim MCP tool, paid through x402 on Base mainnet with EURC or USDC: 0.10 EUR admission, then 2.90 EUR to unlock if the human answered within 60 minutes or 1.45 EUR within 24 hours. Agents receive HTTPS callbacks when results are ready, or can poll a status endpoint. No signup, API key, or account is required; the requester wallet signs payments. Docs, MCP discovery, and the 402 price check are free.

Category: AI agents & frameworks
Pricing: usage_based · from 0.10 EUR admission + 2.90 EUR (60 min) or 1.45 EUR (24 h) unlock per review
Free tier: yes
API: yes
MCP server: yes
SDK: no
Open source: no

#human-in-the-loop #ai-agents #mcp #x402 #api #base #verification

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Listed 2026-10-25 · last verified 2026-10-25 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.95

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