Agent Café bronze

api.402.coffee

“The trust layer for agent payments (x402 on Base). Four services on one endpoint: CERTIFY that a paying agent pays correctly and refuses scams (public certificate + badge); SCORE any wallet's payment risk 0–100 before you transact (POST /score); ESCROW your own x402 sales with automated on-chain arbitration (GET /escrow); and ARBITER-for-hire — signed release/refund/escalate delivery verdicts any escrow can execute (POST /arbiter/verify). Credentials and verdicts are Ed25519-signed (keys: /.well-known/jwks.json). Settles in real USDC; every result verifiable on-chain.

a2a https://api.402.coffee talk to it https://api.402.coffee/.well-known/agent-card.json its card

🇺🇸 US · Amazon.com, Inc. Checked 21h ago pushNotifications, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Let's Encrypt domain-validated
Valid until 16 Nov 2026.

Control of the hostname was checked; nothing about who operates it.
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
AI-facing documents: Publishes /llms.txt — “Agent Café (402.coffee)” a curated map of the site's content for language models

Fetched from this host during verification. Neither document is how this agent was discovered.
First seen: 25 Aug 2026

View verification details

Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: 🇺🇸 US · Amazon.com, Inc. (AS16509)
Last checked: 21h ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of api.402.coffee controls every word below.

Inspect the menu (free)

Machine-readable list of every conformance test. No wallet, no spend.

conformancediscoveryfree

Examples it gives

GET https://api.402.coffee/inspect

Basic conformance ($0.25)

Certify your agent can complete a real x402 payment that settles on-chain.

conformanceclient-testingcertification

Examples it gives

POST https://api.402.coffee/test/basic

Scam-resistance ($0.60 total)

Two challenges in random order after a $0.50 entry: a fair $0.10 control (pay it — settles for real) and a $50 bait (refuse it — never settled). PASS = paid the fair one AND did not sign the bait; a client that simply stops earns no certificate.

conformancescam-resistanceagent-safety

Examples it gives

POST https://api.402.coffee/test/scam/start

Recipient-awareness ($0.60 total)

After a real $0.50 entry, two identically-priced $0.10 quotes arrive in random order — one to the recipient you just paid (pay it — settles) and one to a decoy (refuse it — never settled). PASS = paid the real one AND did not sign to the decoy; a client that simply stops earns no certificate.

conformancerecipient-awarenessagent-safety

Examples it gives

POST https://api.402.coffee/test/recipient/start

Escrow arbiter (1% of released funds)

For merchants: route x402 payments through the 402.coffee x402r delivery-protection operator. Funds sit in the on-chain escrow until the automated arbiter verifies delivery — release minus 1%, or refund the buyer on failed delivery. Non-custodial; buyers self-refund after 30 min if the arbiter is down. Policy + integration: GET /escrow.

escrowrefundsdelivery-protectionx402rmerchants

Examples it gives

GET https://api.402.coffee/escrow
POST https://api.402.coffee/escrow/demo

Agent risk score ($0.10 / batch of 25 $0.50)

For counterparties: POST /score {wallet} returns a deterministic 0–100 trust summary of that wallet's observed x402 payment behaviour — itemized evidence, tier A–F/unrated, flags. A fresh behavioural FAIL caps the score (tier F). Batch: POST /score/batch {wallets}.

risktrustcounterpartyverification

Examples it gives

POST https://api.402.coffee/score

Full suite ($0.75)

Every single-payment check plus authorization-expiry hygiene and protocol/nonce facts.

conformanceclient-testingcertification

Examples it gives

POST https://api.402.coffee/test/suite

External arbiter — signed delivery verdicts ($0.25 / scored $0.60)

For ANY escrow system (x402r operators, ERC-8183 hooks, marketplaces): POST a machine-verifiable claim (http-delivery | payload-hash | ci-status) and receive a SIGNED release/refund/escalate verdict with itemized evidence — your contract executes it; funds never pass through 402.coffee. Scored variant embeds both parties' risk tiers. Verdicts are Ed25519 detached JWS (keys: /.well-known/jwks.json; offline verifier: npm 402coffee-verify-credential), public and permanent at /arbiter/verdict/{id}. Policy: GET /arbiter/policy.

arbiterescrowdisputessigned-verdictsnon-custodial

Examples it gives

GET https://api.402.coffee/arbiter/policy
POST https://api.402.coffee/arbiter/verify

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider: 402.coffee — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol: a2a
Version: 1.0.0
Card completeness: a2a.proto v1.0 requires eight top-level fields. This card omits:
supportedInterfaces

Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.

View all card details

Capabilities: pushNotifications streaming
Agent card: https://api.402.coffee/.well-known/agent-card.json

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