USASpending.gov API — Federal Spending Data

USASpending.gov is the official open data portal for U.S. federal spending, maintained by the Department of the Treasury. It tracks every dollar of federal spending — contracts, grants, loans, direct payments, and other financial assistance — that flows from government agencies to private recipients. The underlying API is the authoritative machine-readable window into that data, covering hundreds of thousands of federal awards annually. Anysite wraps that API into a clean, authenticated REST surface with consistent POST semantics: look up agencies by toptier code, search awards by keyword, trace funding account records by quarter, resolve recipients by UEI, and count award categories in a single call. All 11 endpoints are available via REST, CLI, MCP (Claude, Cursor, ChatGPT), and n8n nodes — no Treasury credentials or USASpending developer account required.

Eleven endpoints across four categories: agencies, awards, autocomplete, and recipients. Every endpoint accepts POST requests authenticated with your Anysite access-token header.

All USASpending endpoints accept POST requests to https://api.anysite.io with your access-token header. Replace YOUR_KEY with your Anysite API key.

curl https://api.anysite.io/api/usaspending/awards/search \
  -H "access-token: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "keywords": ["cybersecurity"],
    "award_type_codes": ["A","B","C","D"],
    "count": 10,
    "start_date": "2024-01-01"
  }'

curl https://api.anysite.io/api/usaspending/agencies \
  -H "access-token: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"toptier_code": "097"}'

curl https://api.anysite.io/api/usaspending/awards/search/count \
  -H "access-token: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "keywords": ["renewable energy"],
    "start_date": "2023-10-01",
    "end_date": "2024-09-30"
  }'

curl https://api.anysite.io/api/usaspending/recipients \
  -H "access-token: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"recipient_id": "b97d19b0-833c-8d8f-3a2c-157d04ea55ef-P"}'

curl https://api.anysite.io/api/usaspending/awards/subawards \
  -H "access-token: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "award": "CONT_AWD_N0001920C0009_9700_-NONE-_-NONE-",
    "count": 20
  }'

Every endpoint is included in all Anysite plans — there's no per-endpoint pricing to track. Use MCP Unlimited for flat-rate access through your AI tools, or a credit plan for REST & CLI at scale.