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MEO Preflight

by machineeconomyobservatory.com · remote · no sign-in to list tools · v0.2.0 · published by com.machineeconomyobservatory

Read-only machine payment preflight using dated MEO evidence, with explicit unknowns.

Final · 1
CompareRegistry entry

1 tool: 1 do something that can't be undone.

Scanned Oct 21, 2026

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http meo-preflight https://api.machineeconomyobservatory.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn1 info
  • Warnpreflight_machine_payment

    The server marks "preflight_machine_payment" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "preflight_machine_payment" says "payment": a word that usually means money moves, which cannot be taken back.

    What this check looks for
  • Infopreflight_machine_payment

    The input schema at properties.resource_url.description mentions "credentials".

    Matched text

    inputSchema.properties.resource_url.description: "Public HTTPS resource URL, no query, credentials or fragment. Exact resource matching on..."

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

1 tool

Can't be undone 1Claude Code: ask
  • preflight_machine_paymentBefore paying an unfamiliar machine service, call this read-only tool to compare the proposed resource, payment destination, network, asset and amount with MEO's dated economic his…2 findings

    Why it is in this group

    • The name "preflight_machine_payment" says "payment": a word that usually means money moves, which cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Info

      The input schema at properties.resource_url.description mentions "credentials".

      Matched text

      inputSchema.properties.resource_url.description: "Public HTTPS resource URL, no query, credentials or fragment. Exact resource matching on..."

      What this check looks for
    • Warn

      The server marks "preflight_machine_payment" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "preflight_machine_payment" says "payment": a word that usually means money moves, which cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Before paying an unfamiliar machine service, call this read-only tool to compare the proposed resource, payment destination, network, asset and amount with MEO's dated economic history. Returns observed payment-term matches or changes, settlement/buyer/activity context when available, evidence freshness, and explicit unknowns. It does not execute or approve payment and never interprets missing evidence as safe. Pilot scope: two services; third-party public probe observations retained by MEO, not independently verified settlements. Settlement/buyer history, current activity and payment destination history are UNKNOWN. Evidence may be stale. Invocation example: {"resource_url":"https://blockrun.ai/api/v1/exa/search","pay_to":"0x0000000000000000000000000000000000000001","network":"eip155:8453","asset":"USDC","amount":"0.011"}

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • destructiveHint: false
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http meo-preflight https://api.machineeconomyobservatory.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__meo-preflight__preflight_machine_payment"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as meo-preflight. Review it before you use it.