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AuthiChain

Signed product verification for agents. Unpaid POST /api/x402 returns HTTP 402 for $0.05 Circle USDC on Base. Humans pay on published Stripe Payment Links at /pricing (Passport $49, EU DPP Readiness $299).

unclaimedpaid_usage_verifiedbuy here · x402

Badges

verified	Not yet: listing not claimed with domain proof.
trusted	Not yet: needs 3+ independent buyers and 5+ settlements in 30 days.

What the tiers mean: /badges

Trust · score 11

Use it

Seller site: https://authichain.com/x402 · JSON · kit.json · buy here: /api/v1/call/x402.authichain

Data source: x402-list.com (CC BY 4.0)

POST https://authichain.com/api/v1/agent-verify

Is this yours? Claim it to earn Verified.

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[![Agentropolis](https://agentropolis.io/badge/x402.authichain.svg)](https://agentropolis.io/listing/x402.authichain)

Preview. Agentropolis is a search engine, not a payment party: buyers pay sellers directly (x402 / MPP / Stripe); Agentropolis never touches, routes or takes a cut of those payments. Data: Official MCP Registry (CC0), tempoxyz/mpp (MIT/Apache-2.0), x402-list.com (CC BY 4.0), sellers' own discovery files. Seeded listings are unclaimed. Sources & terms · Roadmap · Privacy · llms.txt · A2A card · Reports RSS · Contact: hello@agentropolis.io