@kaditang/402sentinel-mcp

MCPcommunity
v0.9.0Biao TangMITUpdated 6d agonpmGitHub

DEPRECATED: the hosted 402Sentinel service was retired on 2026-10-31. MCP client for x402 payment-safety checks; needs SENTINEL_URL (no default; 402sentinel.com is refused).

Works in
ClaudeCursorCopilotGemini

Inferred from the transports this listing declares (stdio). A client not listed here hasn’t been ruled out — it just isn’t something Forge can confirm.

Automatically indexed from public sources. Not yet verified by the developer on Forge.Claim this listing →
431Downloads/wk
1GitHub stars
6d agoLast update
Needs 1 credential before it runs
  • CLIENT_PRIVATE_KEYAPI keyrequired

    A Base wallet holding USDC on-chain (no gas needed) — pays per call, from $0.002.

Declared by the author in the official MCP registry. Forge does not store, broker, or ever see these values — the config below is scaffolded with placeholders you fill in locally.

Package
AuthorBiao Tang
LicenseMIT
Version0.9.0
Sourcenpm+mcp-registry
Trust Status
B
60/100Good
✓Listed in Forge index+10/10
—Publisher identity verified+0/20
→ Publisher: run `forge publish` from the package repo to claim ownership
—Ed25519 publish signature+0/5
→ Included automatically when the publisher runs `forge publish`
—Domain verification+0/5
→ Publisher: host /.well-known/forge.json on the package homepage with { "publisher": "<github-login>" }
—npm Trusted Publishing (Sigstore)+0/5
→ Publish from GitHub Actions with --provenance so the attestation binds this package to this repo
—npm maintainer match+0/5
→ Earned once your identity is verified above and that login is an npm maintainer of this package
✓CVE scan · clean+30/30
✓Static analysis · clean+20/20
Paste into Claude Code, Cursor, or any AI assistant to fix all gaps
StatusCommunity-indexed
PublisherUnverified
SignatureUnsigned
Domain—
Provenance—
Dependencies60 resolved · 1 with advisories
Tool surface10 tools · none privileged
Security scan⚠ Warnings (1)v0.9.0 · todayHow well does this scan work?
EvalsNone
IndexedOct 18, 2026

Verification confirms publisher identity (repo ownership), not code safety. The security scan covers known CVEs and suspicious install scripts.

Tools

10 tools · none privileged
Statically extracted from the published packagev0.9.0 · 12h ago

Read out of the source npm actually ships, at scan time. The package was never executed. Tools registered dynamically at runtime, or hidden inside bundled or minified code, can be missed — so this is a floor on the tool surface, not a complete census of it.

assess_counterpartyAssess the risk of an x402 counterparty (a payTo address) BEFORE paying. Returns a 0-100 risk_score, an allow/review/block decision, honest confidence/coverage, and a ready-to-apply recommended_policy (per-counterparty caps + approval/denylist), scored from on-chain settlement behaviour on Base + a…

Assess the risk of an x402 counterparty (a payTo address) BEFORE paying. Returns a 0-100 risk_score, an allow/review/block decision, honest confidence/coverage, and a ready-to-apply recommended_policy (per-counterparty caps + approval/denylist), scored from on-chain settlement behaviour on Base + a…

No input schema was published for this tool.

assess_counterparty_deepLike assess_counterparty but scans more on-chain settlement history for a higher-confidence read. Use for larger or higher-stakes payments. Costs $0.02 (paid automatically in USDC).

Like assess_counterparty but scans more on-chain settlement history for a higher-confidence read. Use for larger or higher-stakes payments. Costs $0.02 (paid automatically in USDC).

No input schema was published for this tool.

recommend_policyTurn a counterparty's risk into an enforceable spending policy you can apply to your agent wallet. Returns an allow/limit/deny decision plus recommended_policy: max_payment_usdc (per-counterparty cap), daily_cap_usdc, add_to_denylist, require_human_approval. Costs $0.002 (paid automatically in USDC…

Turn a counterparty's risk into an enforceable spending policy you can apply to your agent wallet. Returns an allow/limit/deny decision plus recommended_policy: max_payment_usdc (per-counterparty cap), daily_cap_usdc, add_to_denylist, require_human_approval. Costs $0.002 (paid automatically in USDC…

No input schema was published for this tool.

report_outcomeFREE. After you pay a counterparty, report whether they delivered so 402Sentinel's settlement-reliability flywheel can learn. Pass the assessment_id returned by a prior assessment.

FREE. After you pay a counterparty, report whether they delivered so 402Sentinel's settlement-reliability flywheel can learn. Pass the assessment_id returned by a prior assessment.

No input schema was published for this tool.

firewallNo description published

This tool published no description. Forge does not invent one.

compliance_checkNo description published

This tool published no description. Forge does not invent one.

assess_rwaNo description published

This tool published no description. Forge does not invent one.

verify_service402Sentinel Verified (opt-in badge): submit YOUR OWN service's payTo for a deep settlement-graph audit (facilitator-aware, multi-hop, exchange-labelled). If it passes (organic, sufficient confidence), a signed time-boxed (30d) credential is issued and your service joins the public allow-list at /ap…

402Sentinel Verified (opt-in badge): submit YOUR OWN service's payTo for a deep settlement-graph audit (facilitator-aware, multi-hop, exchange-labelled). If it passes (organic, sufficient confidence), a signed time-boxed (30d) credential is issued and your service joins the public allow-list at /ap…

No input schema was published for this tool.

firewall_recordFREE. Seed your agent's payment history so the firewall has a behavioural baseline (record past/known-good payments). agent_id and the wallet-ownership signature are attached automatically from your configured wallet, so the seeded history is trusted.

FREE. Seed your agent's payment history so the firewall has a behavioural baseline (record past/known-good payments). agent_id and the wallet-ownership signature are attached automatically from your configured wallet, so the seeded history is trusted.

No input schema was published for this tool.

firewall_outcomeFREE. After a firewall verdict, report what actually happened so 402Sentinel learns which signals are predictive and downweights noisy ones (hard-block safety signals stay deterministic). Pass the assessment_id (fw_…) from a prior firewall call.

FREE. After a firewall verdict, report what actually happened so 402Sentinel learns which signals are predictive and downweights noisy ones (hard-block safety signals stay deterministic). Pass the assessment_id (fw_…) from a prior firewall call.

No input schema was published for this tool.

7 of 10 tools published a description.

Tool names and descriptions are written by the publisher and shown verbatim as inert text. They are the strings an MCP client passes to a model, so Forge scans them for prompt-injection patterns — any finding appears with the security scan above. “Privileged” is a keyword match on the tool name, not an audit of what the tool does: a benign-sounding name can still do anything.

About

DEPRECATED: the hosted 402Sentinel service was retired on 2026-10-31. MCP client for x402 payment-safety checks; needs SENTINEL_URL (no default; 402sentinel.com is refused).

Keywords
x402mcpai-agentsriskcounterpartybaseusdc
Alternatives
Comparing tool surfaces…

Dependency tree

What one Forge scan resolved from npm metadata on 2026-10-25 — observed resolution, not a publisher declaration.

60 packages resolved · 4 direct · 1 carrying advisories Resolution stops at depth 4 and 60 packages.

The crawl stopped at the 60-package limit. The rest of the tree was never resolved.

36 more resolved packages are not drawn here (display cap: 24). Every dependency carrying an advisory is drawn regardless of the cap. Full inventory (CycloneDX SBOM)

Declared but not resolved

58 declared dependencies never landed in the tree. They are missing from Forge's resolution, not from the package.

+46 more not listed. The counts by reason above cover all of them.

Not followed: peerDependencies. This tree covers runtime dependencies only, so anything those pull in was never resolved.