research.funding

Search US federal biomedical research grants via NIH RePORTER. Filter by term (free-text over project title, terms, and abstract), org (funded institution name), pi (principal-investigator name), and/or fiscalYear; page with limit (1-50) and offset. Returns each award with project number, title, fiscal year, award amount (USD), contact PI, organization (name, city, state, country, department), funding agency/institute, and project start/end dates — newest fiscal year first, with a total match count. Data: NIH RePORTER, free and public-domain. Fresh post-training award data agents cannot know; pair with /api/research/org (ROR) and /api/research/author (ORCID). Use for funding landscape research, competitor/lab tracking, and grant-opportunity context.

price
$0.0018 USDC per call
method
GET/api/research/funding
payment
x402 v2 · USDC on Base (EIP-3009) or Solana (SPL transfer)
auth
None. Sign the payment, retry with PAYMENT-SIGNATURE.

Overview

The funding API is a pay-per-call research endpoint built for AI agents and autonomous software. Search US federal biomedical research grants via NIH RePORTER.

There is no signup and no API key. An agent (or any HTTP client) hits the endpoint, receives an x402 "402 Payment Required" challenge, signs a sub-cent USDC payment on Base or Solana, and retries — the data comes back on the paid request. That makes it a drop-in funding data source for an agent tool-use loop, an MCP host, or a backend that needs research data on demand without onboarding to yet another vendor portal.

Use cases

Parameters

NameTypeDescription
termstring
min 2 chars · max 200 chars
orgstring
min 2 chars · max 200 chars
pistring
min 2 chars · max 120 chars
fiscalYearinteger
min 1985 · max 2100
limitinteger
min 1 · max 50
offsetinteger
min 0 · max 14000

Code samples

cURLbash
# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/research/funding?term=xx&org=xx&pi=xx&fiscalYear=1985&limit=10&offset=0'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/research/funding?term=xx&org=xx&pi=xx&fiscalYear=1985&limit=10&offset=0' \
  -H 'PAYMENT-SIGNATURE: <base64-json-payload>'

# Or use the canonical runner (handles probe → sign → retry):
#   EVM_PRIVATE_KEY=0x... node --env-file=.env.local \
#     --experimental-strip-types scripts/x402-pay.ts \
#     'https://2s.io/api/research/funding?term=xx&org=xx&pi=xx&fiscalYear=1985&limit=10&offset=0'
TypeScript / Node — @2sio/sdktypescript
import { TwoS } from '@2sio/sdk'

const client = new TwoS({
  privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})

const result = await client.research.funding({
  "term": "xx",
  "org": "xx",
  "pi": "xx",
  "fiscalYear": 1985,
  "limit": 10,
  "offset": 0
})

console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)
Python — 2siopython
import os
from twosio import TwoS

client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])

result = client.research.funding(term="xx", org="xx", pi="xx", fiscalYear=1985, limit=10, offset=0)

print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)
MCP — Claude Desktop / AgentKit / any MCP hostjson
// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
//    EVM_PRIVATE_KEY funds x402 payments per call.

// claude_desktop_config.json
{
  "mcpServers": {
    "2sio": {
      "command": "npx",
      "args": ["-y", "@2sio/mcp"],
      "env": { "EVM_PRIVATE_KEY": "0x..." }
    }
  }
}

// 2. Once the server is running, agents call this tool via standard MCP:

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "research.funding",
    "arguments": {
      "term": "xx",
      "org": "xx",
      "pi": "xx",
      "fiscalYear": 1985,
      "limit": 10,
      "offset": 0
    }
  }
}

Response

FieldTypeDescription
queryobject
totalnumber
countnumber
awardsarray
sourcesarray
Example response datajson
{
  "query": {
    "term": "example",
    "org": "example",
    "pi": "example",
    "fiscalYear": 1,
    "limit": 1,
    "offset": 1
  },
  "total": 1,
  "count": 1,
  "awards": [
    {
      "projectNum": "example",
      "title": "example",
      "fiscalYear": 1,
      "awardAmount": 1,
      "piName": "example",
      "organization": "example",
      "orgCity": "example",
      "orgState": "example",
      "orgCountry": "example",
      "department": "example",
      "agency": "example",
      "agencyName": "example",
      "startDate": "example",
      "endDate": "example"
    }
  ],
  "sources": [
    {
      "provider": "example",
      "url": "example",
      "license": "example"
    }
  ]
}

FAQ

Do I need an API key to use the funding API?
No. research.funding is x402-native — there is no signup and no API key. Your client makes the call, receives a 402 with payment requirements, signs a USDC payment, and retries. Funds come from a wallet you control.
How much does the funding API cost?
$0.0018 USDC per call, charged per request. There are no monthly fees, seats, or minimums — you pay only for the calls you make.
Can I try the funding API for free first?
Yes. Add ?trial=1 (or the header X-2s-Trial: 1) to get a free real call per endpoint per hour, so you can verify the response shape before wiring payment.
Which networks and tokens are supported?
USDC on Base (via EIP-3009 transferWithAuthorization) or Solana (SPL transfer), using the open x402 payment protocol.
How do I call research.funding from an AI agent or MCP host?
Use @2sio/sdk (TypeScript), 2sio (Python), or the @2sio/mcp server for any MCP host — each handles the probe → sign → retry loop for you. See the code samples on this page.

Discovery

Related: funding api · research funding api · funding api for ai agents · x402 research api · funding api no api key · pay per call funding api · research api