Add Vouch402 plugin (x402-metered on-chain risk scores + EAS attestations) - #152
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Add Vouch402 plugin (x402-metered on-chain risk scores + EAS attestations)#152Eras256 wants to merge 2 commits into
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…ions) http-api plugin for Vouch402 (https://vouch402.fly.dev): risk-gated via x402, records an EAS attestation on every successful paid response. Every example in the file (402 body, /v1/metrics shape, dispute signature message) was checked against the live service directly before this PR, not written from memory. Also appends risk-scoring and attestations to the shared tag vocabulary in plugin-spec.md, since neither existing tag covers this capability.
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The plugin spec was frozen at the Vouch402 repo's pre-jurisdiction- blocklist state (this branch's only commit predates that feature by two days). Production now hard-enforces jurisdictionAttestation: true on every paid retry -- verified live against vouch402.fly.dev -- and this spec never mentioned it, so anyone following it as written would pay real USDC on-chain and then hit an unexplained 403 with no recourse. Adds the field to the retry header example, a new 403 response case, orchestration steps 6-7, and a Jurisdiction restrictions entry under Risks & Warnings. Bumps this doc's own version 0.1.0 -> 0.2.0. Content verified against the real Vouch402 source and a live production request before being written here, not just copied from memory. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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What
Adds
skills/base-mcp/plugins/vouch402.md, a plugin for Vouch402: an x402-paid HTTP API that returns an on-chain risk score for a Base address and records an EAS attestation of what was delivered on every successful paid response.integration: http-api; the only Base MCP call in the flow issend_callsfor the USDC payment.Also appends two genuinely new tags,
risk-scoringandattestations, to the shared vocabulary inplugin-spec.md(no existing tag covers either capability): the only other change in this diff, per Contribution Scope.Verification
Every example in the plugin file (the 402 payment-requirements body, the
/v1/metricsshape, the dispute signature message) was checked against the live, currently-running service directly before opening this PR, not written from memory. Self-reviewed against the Authoring Checklist; theplugin-reviewskill isn't available in the environment this was authored in, so this is a manual self-review, not a tool-validated one.Disclosure
This plugin file, and the Vouch402 service it documents, were built with substantial AI assistance (Claude Code) working alongside the human author throughout. Noting this since it plausibly matters here.