MCP.Market

Decide Policy Notaries MCP server

online · 100% uptime
by decidefyi·io.github.decidefyi/policy-notaries·v1.3.1·1 stars
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Fail-closed refund, cancellation, return, and trial checks for 100 US subscription vendors.

B80/100grade B
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Safety scan
B80/100

full report

Adoption
Growing

1 stars

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Decide Policy Notaries tools (4, 1 write)

write = sends, deletes, buys or posts
  • cancellation_penaltyFree

    Check US subscription cancellation terms without executing cancellation. Typeform requires Basic, direct/self-serve platform subscription scope and returns CANCEL_AT_PERIOD_END, not an immediate cancellation or refund. Missing scope or current evidence returns UNKNOWN.

  • refund_eligibilitywrite actionFree

    Evaluate a US consumer subscription refund against versioned source-backed rules. Returns UNKNOWN when required conditions are absent or the vendor requires approval or manual policy review.

  • return_eligibilityFree

    Evaluate whether a US consumer subscription purchase can be reversed under versioned source-backed rules. Returns UNKNOWN when required conditions are absent or manual review is required.

  • trial_termsFree

    Evaluate a live US consumer subscription trial offer. Supply observed availability, duration, card, and auto-conversion facts; the tool returns UNKNOWN instead of inferring current offers from static data.

Public scan report

scanner v0.1.9 · 2026-09-25 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1316ms20/20
  • Tool poisoning4 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 1 days ago15/15
  • Maintainer identityregistry namespace matches repository owner7/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 80/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Decide Policy Notaries compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
80/100
higher than 60% of 48,255 servers
Tools
4
the typical server has 7
Tools that change things
25%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
322 ms
faster than 45% of 30,031 servers
GitHub stars
1
more than 65% of 28,688 servers

What its tools let an agent do: 2 read · 1 change · 1 delete

Install Decide Policy Notaries in Claude Code, Cursor or VS Code

claude mcp add --transport http policy-notaries https://policy.decide.fyi/api/mcp
Add to Cursor

What the publisher says

From the Decide Policy Notaries repository's README, as published. We do not edit it. Read it on GitHub

decide.fyi Decision API

Deterministic Decision API engine powering workflow applications, stable MCP notary remotes, decision memo packets, and execution gates

Positioning: Decide is the API engine and compatibility surface. Krafthaus workflow apps, Policy MCP Notaries, decision memo packets, and execution gates are application surfaces that reuse the same verdict, request ID, and evidence contract.

Gate agent tool calls before execution

Use Decide to evaluate an agent-proposed action against a deterministic rulebook before the tool receives authority to change state. The caller gets a replayable Decision Record and routes yes, no, or review while retaining control of credentials and execution.

See the AI agent action gate guide

Production Determinism Boundary

Binding production verdicts should use a versioned declarative rulebook:

Runtime architecture: see docs/RULEBOOKRUNTIMEARCHITECTURE.md. Machine-readable schema: https://api.decide.fyi/schemas/rulebook-v1.schema.json. Active runtime manifest: https://api.decide.fyi/manifests/rulebook-runtime-v1.json. Downstream application binding: decideapplicationbinding_v1.

The production core is hybriddeclarativerulebookwithtrusted_adapters: direct declarative rulebooks are supported, registered first-party trusted adapters may supply bounded facts, and customer executable rulebooks are rejected. In both supported binding modes, Rulebook v1 remains the only binding verdict selector.

{
  "mode": "rulebook",
  "rulebook": {
    "schema_version": "rulebook_v1",
    "rulebook_id": "pricing_exception",
    "version": "2026-06-11",
    "input_schema": {
      "required": ["discount_percent"],
      "properties": {
        "discount_percent": { "type": "number" }
      }
    },
    "rules": [
      {
        "rule_id": "approve_standard_discount",
        "priority": 50,
        "condition": {
          "field": "discount_percent",
          "operator": "lte",
          "value": 15
        },
        "outcome": {
          "decision": "yes",
          "verdict": "APPROVE",
          "action": "approve_discount",
          "reason_code": "WITHIN_STANDARD_LIMIT"
        }
      }
    ],
    "default_outcome": {
      "decision": "review",
      "verdict": "REVIEW",
      "action": "route_to_owner",
      "reason_code": "NO_RULE_MATCHED"
    }
  },
  "context": {
    "inputs": {
      "discount_percent": 10
    }
  }
}

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Decide Policy Notaries: common questions

Is Decide Policy Notaries MCP server safe?
Mostly: it is graded B (80/100). Read the Decide Policy Notaries safety report
How do I install Decide Policy Notaries?
It runs remotely at policy.decide.fyi. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Decide Policy Notaries need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Decide Policy Notaries maintained?
The last commit was 40 days ago (2026-09-25). The latest release is v1.3.1.
Is Decide Policy Notaries up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Decide Policy Notaries compare with other MCP servers?
safety score 80/100 (higher than 60% of 48,255 servers); tools 4 (the typical server has 7); tools that change things 25% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.