X402 Trust MCP server

Read from the package source without running it. The installed server may list more.

• x402_ecosystem_stats

  Free aggregate snapshot of the entire x402 ecosystem (Base + Solana): how many endpoints are listed/active/delisted, what fraction are reachable and spec-compliant, and real on-chain USDC settlement volume / receivers / payers over the last 30 days. Use this to gauge market health before transacting.

• x402_endpoint_history

  Raw observation time-series for a SPECIFIC x402 endpoint: listing/delisting/relisting events, advertised price changes, payTo changes, and probe results (uptime, latency, quoted amount) over the requested window (1-90 days). Per-probe 'latencyMs' is measured from a single EU vantage point and includes network distance to the endpoint. Pay-per-call over x402; auto-pays if a wallet is configured, ot

• x402_find_alternatives

  Given an x402 endpoint URL, returns the top semantically-similar endpoints (matched on advertised purpose via description embeddings) that currently OUT-SCORE it on the deterministic trust score. Use this to route away from a mediocre/dead/expensive endpoint toward a more reliable, better-settled one serving the SAME function — e.g. before paying, check if a higher-graded equivalent exists. Each a

• x402_semantic_search

  Free-text SEMANTIC SEARCH across the entire monitored x402 endpoint catalog. Given a plain-language query (e.g. "weather forecast", "image generation", "EVM gas price oracle"), returns the up to 25 endpoints whose advertised purpose is semantically closest. Ranking is deterministic and fully specified: cosine similarity bucketed to whole percentage points first (80.3% and 80.5% are the same bucket

• x402_trust_bulk

  Score up to 500 x402 endpoints in a SINGLE paid call. Returns the authoritative full-density trust score (0-100, grade A-F or '?' when unmeasured, recommendation proceed|caution|avoid|parameterize|unverified|not-payable|free), confidence, `probed_at`, `computed_at`, and a `recomputed` flag for each requested resource. Cache rows older than ~15 minutes are recomputed on-demand from the latest store

• x402_trust_leaderboard

  Free top-25 most trustworthy x402 endpoints, ranked by a deterministic trust score (uptime, envelope compliance, latency, age, on-chain settlement activity, price stability). Latency is measured from a single EU vantage point and includes network distance to the endpoint (so it is only lightly weighted). Use this to discover reliable paid endpoints.

• x402_trust_preview

  FREE showcase of what x402_trust_score returns. You do NOT choose the endpoint: this returns the COMPLETE paid-grade trust report (every field — exact score, scoreRange, full component breakdown, advertised price, on-chain settlement figures, all flags) for THREE endpoints picked from the current population — the best-scored, the median, and the worst-scored ('samples' each carry 'role', 'populati

• x402_watch_cancelwrite action

  Soft-cancel a watch immediately: no new events accrue, but the event log stays READABLE via x402_watch_events until the original expires_at (cancel is not a delete). Probing drops back to normal cadence as soon as no active watches cover the endpoint. Bearer-authed with the secret from x402_watch_create. Free and idempotent.

• x402_watch_createwrite action

  Start monitoring ONE x402 endpoint for 30 days. Get alerted on changes that break autonomous payment: payTo changes (possible takeover/rug — but for a templated per-item endpoint a payTo move is expected variance and is delivered as severity 'warn', not 'critical'), price changes, asset/network changes, 402-spec regressions, delisting, and liveness down/recovered. A self-healing endpoint that repe

• x402_watch_edit

  Edit an active watch: change webhook/Slack URLs, liveness sensitivity, or subscribed events. Bearer-authed with the secret from x402_watch_create. Newly-added URLs are connection-tested before the change is persisted; if any new URL fails, the existing config is unchanged. Delivery fields are full-replace per channel (omit to leave that channel unchanged). Returns the updated watch view.

• x402_watch_events

  Read the append-only event log for an active x402 watch. Returns two streams: `events` (endpoint changes — payTo/price/asset/spec/delisting/liveness) and `watch_events` (lifecycle feedback — created/edited/cancelled/renewed/expiring/expired). Nothing between two polls is lost. Provide the watch_id and the one-time secret from x402_watch_create. Advance `since` with the returned `next_cursor` (endp

• x402_watch_renew

  Extend an active x402 watch by another 30 days before it expires. The secret stays the same. Pay-per-call over x402 (~$0.20); auto-pays if a wallet is configured, otherwise returns the price quote.

• Code scan7 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitystatic API keys via environment variables6/15
• Maintenancelast push 3 days ago15/15
• Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

X402 Trust: common questions

Is X402 Trust MCP server safe?

Mostly: it is graded B (83/100). Read the X402 Trust safety report

How do I install X402 Trust?

It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.

Does X402 Trust need an API key?

Yes. The registry entry asks for X402_PRIVATE_KEY.

Is X402 Trust maintained?

The last commit was 4 days ago (2026-09-16). The latest release is v1.13.0.

What can I use instead of X402 Trust?

Servers from other publishers that do the same job: x402 Trinity MCP server, MCP server and Projectmem MCP server. Compare all X402 Trust alternatives.