x402engine

live $0.0020/req AI medium confidence editorial

28 distinct AI APIs behind a single x402 endpoint. Includes text generation, image analysis, embeddings, summarization, and more.

Editorial Verdict

Best API breadth in the ecosystem. One payment relationship for 28 capabilities.

How to Call This Service

Direct x402 Request

curl -X POST https://x402engine.com \
  -H "Content-Type: application/json" \
  -H "X-Payment: <base64-eip712-signed-usdc-authorization>" \
  -d '{"prompt": "your query here"}'

Via Signal402 MCP

signal402_call service="x402engine" payload='{"prompt": "your query"}'

Details

URLhttps://x402engine.com
CategoryAI
Statuslive
Price$0.0020 per request
Confidencemedium confidence
Sourcehttps://x402.org/ecosystem
Last Verified2026-02-15

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