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PEAC Protocol: Signed interaction receipts

NPM · @PEAC/MCP-SERVER · SCANNED AUG 3

Portable signed records for agent, API, MCP, and cross-runtime interactions.

Available components

npm · @peac/mcp-server 78
+32 this week 78 Trust /100
Trust breakdown (6 categories)

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 Security84
  • No malware found by supply-chain analysis.Pass
  • CVE check failed: a known medium-severity CVE affects @hono/node-server 1.19.17, reached via @modelcontextprotocol/sdk > @hono/node-server. A fixed version is available. View diagnostics → Fail
  • No install/post-install scripts declared.Pass
  • Only part of the dependency tree could be resolved (101 of 105), so this covers what we could see, not the whole tree. View diagnostics → Partial
Provenance & Transparency97
  • Source repository is publicly reachable at the declared URL. View diagnostics → Pass
  • Cryptographically verified build provenance (signed, bound to peacprotocol/peac). View diagnostics → Pass
  • Clear OSI-approved license (Apache-2.0).Pass
  • Actively maintained (last published 12 days ago).Pass
  • Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability77
  • AI-judged instruction clarity (excellent).Pass
  • Tool/resource definitions use about 236 tokens (~78/item across 3 items; 3 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
  • Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 100% of tool parameters carry a description.Pass
  • Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Capabilities100
  • Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Install

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 · @peac/mcp-server

# add to Claude Code
claude mcp add peacprotocol-peac -- npx -y @peac/mcp-server
# add to Codex CLI
codex mcp add peacprotocol-peac -- npx -y @peac/mcp-server
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "peacprotocol-peac": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@peac/mcp-server"
      ],
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add peacprotocol-peac --command npx --arg -y --arg @peac/mcp-server
# ~/.hermes/config.yaml
mcp_servers:
  peacprotocol-peac:
    command: "npx"
    args: ["-y", "@peac/mcp-server"]
// mcp.json
{
  "mcpServers": {
    "peacprotocol-peac": {
      "command": "npx",
      "args": [
        "-y",
        "@peac/mcp-server"
      ]
    }
  }
}
Changelog

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.

  • 2 Aug 26 +57
    • GHSA-frvp-7c67-39w9 affects this package: medium ▼ security
    • Known CVEs: unverified → fail ▼ security
    • Install scripts: unverified → pass ▲ security
    • Provenance: unverified → pass ▲ security
    • Malware scan: unverified → pass ▲ security
    • The attested source repository moved: peacprotocol/peac security
    • Tool coverage: 100 → unverified ▼ functional
    • Schema quality: unverified → excellent ▲ functional
    • License: unverified → pass ▲ functional
    • Dependency health: unverified → partial ▲ functional
    • Stability: unverified → 0.20 ▲ functional
    • Maintenance: unverified → pass ▲ functional
    • MCP protocol: unverified → pass ▲ functional
    • Licence: Apache-2.0 functional
  • 31 Jul 26 −3
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 30 Jul 26 −3
    • Dependency health: partial → unverified ▼ functional
  • 28 Jul 26 −19
    • Tool coverage: 100 → unverified ▼ functional
    • Dependency health: unverified → partial ▲ functional
    • First check of Schema quality: unverified functional
  • 27 Jul 26 46

    First indexed and scored.

Diagnostics

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/@peac/[email protected]

Provenance verified

Ecosystem: npm · Outcome: verified

Reason: verified

Source repo:
peacprotocol/peac
Certificate issuer:
https://token.actions.githubusercontent.com
Certificate SAN:
https://github.com/peacprotocol/peac/.github/workflows/publish.yml@refs/tags/v0.15.0
Rekor log index:
1689125947
Predicate type:
https://slsa.dev/provenance/v1
Subject digest:
sha512:7cb8ee636eac5daa9cd8af9c8813168f724aa26b82c491ee09643e6e3f87b96eda0641b0b9135d09fe250073d2ddef89d1e2011a8657e80b9b1e3adaf
Discovery method:
attestation_endpoint
Vulnerabilities 1 finding
ID CVE Severity Vector Fix available
GHSA-frvp-7c67-39w9 medium CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N yes
Dependencies 101 packages

101 packages in the resolved dependency tree · 97 deprecated · 29 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 3 exposed · ~236 tokens

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.

Tool Tokens
peac_decode ~50

Raw-decode a PEAC receipt JWS into header and payload objects. No signature check. Use peac_verify for trusted results.

NameTypeReqDescription
jwsstringyesJWS compact serialization to decode
NameTypeReqDescription
_metaobjectyes—
headerobjectyes—
payloadobjectyes—
verifiedbooleanyes—

No examples provided.

peac_inspect ~67

Inspect a PEAC receipt without verifying the signature. Returns decoded header, payload metadata, and timestamps. Read-only.

NameTypeReqDescription
full_claimsboolean—Include full decoded claims (may be redacted by policy)
jwsstringyesJWS compact serialization to inspect
NameTypeReqDescription
_metaobjectyes—
fullPayloadobject——
headerobjectyes—
payloadMetaobjectyes—
redactedbooleanyes—
verifiedbooleanyes—

No examples provided.

peac_verify ~119

Verify a PEAC receipt: check Ed25519 signature, validate claims, and return structured check results. Read-only, no side effects.

NameTypeReqDescription
audiencestring—Expected audience URI for binding check
issuerstring—Expected issuer URI for binding check
jwksstring—Inline JWKS JSON containing the verifying key
jwsstringyesJWS compact serialization (header.payload.signature)
public_key_base64urlstring—Ed25519 public key in base64url encoding (32 bytes)
NameTypeReqDescription
_metaobjectyes—
checksarrayyes—
claimsSummaryobject——
codestring——
keySourcestring——
messagestring——
okbooleanyes—
variantstring——

No examples provided.