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Messages premium

Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1/premium and pay $0.50 per call in USDC, no API key, no signup. Same models, caps and price as this tier's /cha

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
214 ms
Price
$0.500 per call
Paying buyers, last 30 days
1 (directory's own records)
Paid calls, last 30 days
1
Category
AI model answers
Address
https://agent402.tools/v1/premium/messages

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/61bda3d056f4.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].