coffee.402/mcp
NPM · 402COFFEE-MCP · SCANNED AUG 3
Trust layer for agent payments (x402, Base): verify agents, risk scores, signed escrow verdicts.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →
Supply Chain Security87
- No malware found by supply-chain analysis.Pass
- Only part of the dependency tree could be resolved (114 of 118), so this covers what we could see, not the whole tree.Partial
- No install/post-install scripts declared.Pass
- Only part of the dependency tree could be resolved (114 of 118), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency19
- Repository check failed: no source repository is declared. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 23 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability71
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 826 tokens (~82/item across 10 items; 10 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage94
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 82% of tool parameters carry a description.Partial
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
npm · 402coffee-mcp
claude mcp add coffee-402-mcp -- npx -y 402coffee-mcp
codex mcp add coffee-402-mcp -- npx -y 402coffee-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"coffee-402-mcp": {
"type": "local",
"command": [
"npx",
"-y",
"402coffee-mcp"
],
"enabled": true
}
}
} openclaw mcp add coffee-402-mcp --command npx --arg -y --arg 402coffee-mcp
mcp_servers:
coffee-402-mcp:
command: "npx"
args: ["-y", "402coffee-mcp"] {
"mcpServers": {
"coffee-402-mcp": {
"command": "npx",
"args": [
"-y",
"402coffee-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 3 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Aug 26 +42
- Provenance: unverified → fail ▼ security
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Malware scan: unverified → pass ▲ security
- License: unverified → pass ▲ functional
- Dependency health: unverified → partial ▲ functional
- Maintenance: unverified → pass ▲ functional
- Schema quality: unverified → good ▲ functional
- Stability: unverified → 0.23 ▲ functional
- Licence: MIT functional
- 1 Aug 26 +20
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- MCP protocol: unverified → pass ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- 31 Jul 26 −39
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 39
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 3 Aug 2026 · Analysed npm/[email protected]
Provenance none
Ecosystem: npm · Outcome: none
Dependencies 114 packages
114 packages in the resolved dependency tree · 112 deprecated · 29 stale · 1 without a linked repository.
The dependency tree was only partially resolved, so these counts may be incomplete.
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.
arbiter_policy ~45
FREE — the published 402.coffee arbiter policy: scope (machine-verifiable categories only), verdict semantics, evidence rules, neutrality, corrections, fees, signatures, liability.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
arbiter_verify ~195
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.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | yes | — |
| conditions | object | yes | the pre-agreed verification conditions for the category |
| deal_ref | string | — | your opaque deal/escrow reference (echoed into the signed verdict) |
| parties | object | — | — |
| scored | boolean | — | true = $0.60 scored variant with parties' risk tiers |
No output schema declared.
No examples provided.
behavioural_test_info ~97
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.
| Name | Type | Req | Description |
|---|---|---|---|
| test | string | yes | which behavioural test |
No output schema declared.
No examples provided.
certify ~99
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.
| Name | Type | Req | Description |
|---|---|---|---|
| test | string | — | basic ($0.25) or full suite ($0.75) |
No output schema declared.
No examples provided.
check_credential ~69
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).
| Name | Type | Req | Description |
|---|---|---|---|
| wallet | string | yes | 0x wallet address |
No output schema declared.
No examples provided.
escrow_info ~66
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_tests ~50
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
score_batch ~47
PAID $0.50 — risk scores for up to 25 wallets in one payment ($0.02/wallet effective).
| Name | Type | Req | Description |
|---|---|---|---|
| wallets | array | yes | up to 25 wallet addresses |
No output schema declared.
No examples provided.
score_wallet ~82
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.
| Name | Type | Req | Description |
|---|---|---|---|
| wallet | string | yes | 0x wallet address to score |
No output schema declared.
No examples provided.
verify_agent ~76
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.
| Name | Type | Req | Description |
|---|---|---|---|
| wallet | string | yes | 0x wallet address of the agent to check |
No output schema declared.
No examples provided.