Spending Resolver API: Any federal-spending string — USAspending and NIH RePORTER

Any federal-spending string in — industry, product, program, recipient or agency — every code space searched at once, each match tagged with the filter parameter it belongs to. One call instead of five lookups. Free, no key.

Free — no key, no signup, rate-limited to 60 calls per minute per client.

How do you call it?

GET /v1/funding/resolve — product id funding_resolve. Over MCP, call answerpool_get with product_id=funding_resolve.

curl "https://answerpool.io/v1/funding/resolve?q=cancer"

Live call: https://answerpool.io/v1/funding/resolve?q=cancer · JSON sample: /v1/samples/funding_resolve

What does the answer look like?

A representative response, the same static sample served at /v1/samples/funding_resolve.

matches

{
 "as_of": "2026-09-03T15:00:00Z",
 "query": "cancer",
 "count": 2,
 "matches": [
  {
   "kind": "program",
   "code": "93.398",
   "label": "Cancer Research Manpower",
   "filter_param": "program_number"
  },
  {
   "kind": "naics",
   "code": "621512",
   "label": "Diagnostic Imaging Centers",
   "filter_param": "naics"
  }
 ],
 "next_endpoints": [
  {
   "path": "/v1/funding/signals",
   "url": "/v1/funding/signals?term=cancer",
   "description": "Federal funding trajectory for this term (USAspending + NIH)",
   "price_usd": 0.02
  }
 ],
 "note": "Searches every federal code space at once \u2014 NAICS, PSC, assistance listing, recipient, agency \u2014 so one call replaces guessing which lookup applies.",
 "disclaimer": "Reference data from USAspending.gov (US federal public domain); not procurement advice.",
 "refresh_after": "2026-09-18T00:00:00.000Z"
}

How fresh is it, and where does the data come from?

The fastest source behind this answer can change daily, so every response carries a refresh_after timestamp — right now it would be 2026-09-18T00:00:00.000Z. Schedule the next call on that value rather than on a guess.

• USAspending (US federal public domain) — upstream: https://api.usaspending.gov/api/v2

Method version 0.1.0 · serving cache 7 days · every response carries a result_id you can resolve at /v1/provenance.

What should you call next?

• funding_signals — Federal funding trajectory for this term (USAspending + NIH) ($0.02)

When should you use it?

You have one string and do not know which federal code space it belongs to.

What you skip building

• five sequential autocomplete calls
• picking the wrong code space

When should you not use it?

You already know the space — call that lookup directly for more results.

Where else can you find this?

• Catalog entry (JSON, free)
• OpenAPI schema — input and output types, prices, the 402 flow
• llms.txt — every product in one plain-text document