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💰 Paid API v0.1.0 x402 micropay

FPDS-NG MCP

fpds-mcp.mtree.workers.dev · fpds-mcp.mtree.workers.dev

Two pay-per-call x402 endpoints for the U.S. Federal Procurement Data System (FPDS-NG): contracts/search ($0.04) and contracts/by_vendor ($0.05). Decades of federal contract awards, no signup, no API key — pay USDC on Base.

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🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Structured JSON via card-changes API. Sign in to subscribe
Trust score
26/100
grade F · 9 criteria
Uptime
accumulating
4/5 probes
Revenue · 30d
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 26/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 0/25
Card declares a URL but that URL returns 404.
How to earn +25 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a valid JSON-RPC response. Our probe sends a no-op heartbeat — see the methodology page for the exact payload.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 4 probes so far — need ≥5 for an uptime grade.
partial Skill declaration 6/10
Declares 2 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: fpds-mcp.mtree.workers.dev (https://fpds-mcp.mtree.workers.dev). 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 5/5
declares 1 modern capability flag(s) (x402); seen in upstream source within 0d
info Security declaration 0/5
No securitySchemes declared (common for open agents — not penalised).
⚠ 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 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. 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
2026-05-20 23:56:53 current d5bbbf6b8ef1… view →
Uptime
100.0%
4 probes
Response
15ms
last probe
Skills
2
declared
Streaming
SSE-capable

Endpoints

Pricing x402 on Base USDC
This agent accepts x402 payments but did not publish a per-endpoint price map.
Try it ↗ Opens the operator's playground / docs in a new tab.
Agent cardhttps://fpds-mcp.mtree.workers.dev/.well-known/agent-card.json
Providerhttps://fpds-mcp.mtree.workers.dev
Docshttps://fpds-mcp.mtree.workers.dev/agent-discovery
Discovered via
agentic_market recrawl_warm recrawl_hot

Skills · 2 declared · mapped to canonical taxonomy

FPDS Federal Contract Search

Search U.S. federal contract actions in FPDS-NG by description keyword, contracting agency code, NAICS, and signing-date window. Returns PIIDs, obligated amount…

canonical Federated SQL Query match 81%
procurementgovernmentfederalfpdscontracts
FPDS Vendor Contract Lookup

Pull recent FPDS contract actions for a single vendor (by name) plus a quick aggregate (total obligated $, distinct agencies, distinct NAICS). Useful for vendor…

canonical Federated SQL Query match 81%
procurementgovernmentfederalfpdsvendor

Health · last 3 probes

When HTTP Live JSON-RPC Latency
2026-05-22 14:13:36 200 15ms
2026-05-22 09:07:39 200 16ms
2026-05-20 23:56:53 200 15ms

Cheaper or better alternatives per-skill

↑ 1 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor — only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

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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": "FPDS-NG MCP",
  "description": "Two pay-per-call x402 endpoints for the U.S. Federal Procurement Data System (FPDS-NG): contracts/search ($0.04) and contracts/by_vendor ($0.05). Decades of federal contract awards, no signup, no API key \u2014 pay USDC on Base.",
  "url": "https://fpds-mcp.mtree.workers.dev",
  "version": "0.1.0",
  "documentationUrl": "https://fpds-mcp.mtree.workers.dev/agent-discovery",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "authentication": {
    "schemes": [
      "x402"
    ],
    "credentials": "Pay-per-call via x402 USDC on Base \u2014 no signup, no API key. Each call returns 402 with an EXACT-scheme requirement; agents pay 0x1664530DC2A1CA350B1dbaD1Fc1F1a70c90fe4de in Base USDC and retry with X-PAYMENT."
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "contracts-search",
      "name": "FPDS Federal Contract Search",
      "description": "Search U.S. federal contract actions in FPDS-NG by description keyword, contracting agency code, NAICS, and signing-date window. Returns PIIDs, obligated amounts, vendors, NAICS, PSC, and direct FPDS UI links. $0.04/call.",
      "tags": [
        "procurement",
        "government",
        "federal",
        "fpds",
        "contracts",
        "awards",
        "naics",
        "psc",
        "govcon",
        "vendor-due-diligence"
      ],
      "examples": [
        "Find DOD satellite contracts signed in the last 365 days",
        "Search FPDS for cybersecurity contracts under NAICS 541512",
        "What contracts has agency code 9700 signed in the last 90 days?"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "contracts-by-vendor",
      "name": "FPDS Vendor Contract Lookup",
      "description": "Pull recent FPDS contract actions for a single vendor (by name) plus a quick aggregate (total obligated $, distinct agencies, distinct NAICS). Useful for vendor due-diligence agents and competitive-intel bots. $0.05/call.",
      "tags": [
        "procurement",
        "government",
        "federal",
        "fpds",
        "vendor",
        "due-diligence",
        "competitive-intelligence",
        "supplier",
        "govcon"
      ],
      "examples": [
        "Show me Lockheed Martin's federal contracts over the last 5 years",
        "What has Acme Aerospace been awarded by DOD recently?",
        "Aggregate the last 50 federal contracts for SpaceX"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ]
}