Coffee

Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/402-coffee-mcp

About

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools

8 read · 0 write · 0 delete · 2 not yet classified

Secrets

None asked for

Install scripts

Not scanned yet

Runs as

Node.js package

Tools (10)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

• arbiter_policy

  FREE — the published 402.coffee arbiter policy: scope (machine-verifiable categories only), verdict semantics, evidence rules, neutrality, corrections, fees, signatures, liability.

• arbiter_verify

  PAID $0.25 ($0.60 scored) — get a SIGNED release/refund/escalate delivery verdict from the 402.coffee external arbiter for a machine-verifiable claim. Non-custodial: your escrow executes the verdict. Categories: http-delivery {url, expect_status?, expect_sha256?, min_bytes?, expect_contains?} · payload-hash {payload_text|payload_b64, expected_sha256} · ci-status {repo, commit_sha}. Scored variant embeds both parties' 402.coffee risk tiers.

• behavioural_test_info

  FREE — how to run the behavioural conformance tests (scam-resistance / recipient-awareness, $0.60 total each). These are ADVERSARIAL: a naive auto-paying client will sign the bait and FAIL — which is exactly what they measure — so they are not run by this MCP server's auto-payer. Returns the step-by-step flow and the one-command path.

• certify

  PAID $0.25 (basic) / $0.75 (suite) — certify THIS wallet's x402 client by completing a real payment against 402.coffee's conformance harness. Returns a public certificate URL + README badge. The behavioural tests (scam/recipient) are multi-step and adversarial — use behavioural_test_info for those.

• check_credential

  FREE — fetch a wallet's portable W3C-VC-shaped credential AND verify its Ed25519 signature locally against 402.coffee's published JWKS (offline-verifiable proof it was issued by 402.coffee and not altered).

• escrow_info

  FREE — the 402.coffee full-escrow product for merchants: route x402 sales through the on-chain x402r operator, funds held in AuthCaptureEscrow until the arbiter verifies delivery (release minus 1% or refund). Contracts, fee policy, integration snippet.

• list_tests

  FREE — the machine-readable 402.coffee menu: every conformance test, price, route, and payoff, plus the counterparty products (score, escrow, arbiter). No wallet, no spend.

• score_batch

  PAID $0.50 — risk scores for up to 25 wallets in one payment ($0.02/wallet effective).

• score_wallet

  PAID $0.10 — deterministic 0–100 payment-risk score for any wallet: certified behaviour (scam-resistance, recipient-awareness) + real on-chain USDC payment history, with tier A–F, itemized evidence and flags. For deciding whether to transact with an agent.

• verify_agent

  FREE — check whether a wallet has current 402.coffee conformance certs (pays correctly, refuses scams, checks recipients) plus a free on-chain USDC payment-activity summary. The one-call trust check before you transact with an agent.

Signals

Last release

Jul 10, 2026 (3 months ago)

Details

Registry name

coffee.402/mcp

Version

0.1.1

Auth

No auth

Packages

npm 402coffee-mcp

License

License unknown

First seen

Oct 24, 2026

Last checked

Oct 25, 2026

Source

Official MCP Registry