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📊 Intel view 📋 Audit JSON 🔄 Changelog
100
A2A live JSON-RPC A2A 1.0 v0.3.0

MEO Preflight

api.machineeconomyobservatory.com · Machine Economy Observatory

Read-only comparison of proposed machine payment terms with dated third-party public observations retained by MEO. Does not execute or approve payments. 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.

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Trust score
60/100
grade C · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~27 ms response
Observed inflow · 30d
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

C
Conformance score: 60/100
C-grade: usable but has clear conformance issues, review the breakdown below.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
pass Live JSON-RPC 25/25
Endpoint responds to a negotiated A2A SendMessage probe (answers in ~27 ms).
pass Protocol version 10/10
Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
partial Skill declaration 6/10
Declares 1 skill, usable but thin.
How to earn +4 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial Verified Identity 5/10
Provider declared: Machine Economy Observatory (https://machineeconomyobservatory.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-09-18 17:40:15 current 0e4dc170b6c1… view →
Uptime
accumulating
1 direct probes · 30d
Response
25ms
last direct probe
Skills
1
declared
Streaming
SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

calling agent…

Skills · 1 declared · mapped to canonical taxonomy

Machine payment preflight

Send exactly one JSON data part with resource, payTo, network, asset and amount as strings, using the existing Preflight input contract. Returns historical comp…

canonical X402 Usdc Payments match 83%
payment-preflighthistorical-evidenceread-onlybaseusdc

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-09-18 17:40:15 200 25ms

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Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/api.machineeconomyobservatory.com.svg)](https://agenstry.com/agents/api.machineeconomyobservatory.com)
[![Verified Business](https://agenstry.com/badge/api.machineeconomyobservatory.com/identity.svg)](https://agenstry.com/agents/api.machineeconomyobservatory.com)
[![Uptime](https://agenstry.com/badge/api.machineeconomyobservatory.com/uptime.svg)](https://agenstry.com/agents/api.machineeconomyobservatory.com)
[![A2A version](https://agenstry.com/badge/api.machineeconomyobservatory.com/protocol.svg)](https://agenstry.com/agents/api.machineeconomyobservatory.com)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "name": "MEO Preflight",
  "description": "Read-only comparison of proposed machine payment terms with dated third-party public observations retained by MEO. Does not execute or approve payments. 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.",
  "version": "0.3.0",
  "provider": {
    "organization": "Machine Economy Observatory",
    "url": "https://machineeconomyobservatory.com"
  },
  "supportedInterfaces": [
    {
      "url": "https://api.machineeconomyobservatory.com/a2a",
      "protocolBinding": "JSONRPC",
      "protocolVersion": "1.0"
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extendedAgentCard": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "machine_payment_preflight",
      "name": "Machine payment preflight",
      "description": "Send exactly one JSON data part with resource, payTo, network, asset and amount as strings, using the existing Preflight input contract. Returns historical comparisons, evidence freshness and explicit unknowns. Base (eip155:8453) / USDC only; other networks/assets return UNSUPPORTED. No live resource fetch, payment execution, payment approval, or settlement verification. Each request is independent; context IDs correlate messages but no conversation history or tasks are retained. Maximum JSON-RPC request body: 8192 bytes.",
      "tags": [
        "payment-preflight",
        "historical-evidence",
        "read-only",
        "base",
        "usdc"
      ],
      "examples": [
        "{\"resource\":\"https://blockrun.ai/api/v1/exa/search\",\"payTo\":\"0x0000000000000000000000000000000000000001\",\"network\":\"eip155:8453\",\"asset\":\"USDC\",\"amount\":\"0.011\"}"
      ]
    }
  ]
}