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2s.io US Nonprofit Search
x402
2s.io US Nonprofit Search is a paid API for AI agents from 2s.io, paid per call via x402, $0.0012/call, status unknown (last checked 2026-09-13).
Search US 501(c) nonprofit organizations by EIN, name, state, NTEE category code, or IRS subsection code, returning structured organization records from IRS/ProPublica data.
Price / call$0.0012
Success—
StatusUnknown
How this service works
US 501(c) nonprofit organization search. Lookup by 9-digit EIN (with or without hyphen), free-text name, 2-letter state, NTEE category code (e.g. 'B99' for education), or IRS subsection code (3 = 501(c)(3), 4 = 501(c)(4), etc.). Each record includes EIN, name, city/state, NTEE code, subsection code + human-readable subsection description (e.g. '501(c)(3) Charitable / Religious / Educational'), and relevance score. Sourced from ProPublica Nonprofit Explorer, which aggregates IRS Form 990 + BMF data; underlying IRS data is public domain.
Output
A paginated list of nonprofit organization records (100 per page), each containing: EIN, organization name, city, state, NTEE code, IRS subsection code, human-readable subsection description (e.g. '501(c)(3) Charitable / Religious / Educational'), and a relevance score. Results are sourced from ProPublica Nonprofit Explorer aggregating IRS Form 990 and BMF data.
Example use cases
Example prompt
“Can you look up nonprofit organizations named 'Habitat for Humanity' in Texas and tell me their EINs, NTEE codes, and whether they're 501(c)(3)?”
Technical details
Endpoint
GEThttps://2s.io/api/nonprofit/searchWhen to prefer
Use this endpoint when you need to look up or verify US nonprofit organizations using IRS data — especially when you need EINs, NTEE classifications, or IRS subsection codes. It is well-suited for due diligence on charitable donations, verifying nonprofit status, finding organizations by category or geography, and enriching nonprofit data pipelines. Prefer this over general web search when structured, authoritative IRS-sourced records are needed.
Side effects
- Invalid or malformed EIN returns no results or an error
- Unknown NTEE code or subsection code returns empty result set
- Free-text name search may return many loosely matched results requiring filtering
- Pagination beyond available results returns empty page
- Missing required query parameter (no search criteria provided) may return error or empty results
- Rate limit or payment failure returns 402 or 429 status
Input
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"q": "Habitat for Humanity",
"page": 0,
"state": "TX"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"data": {
"ok": true,
"meta": {
"query": {
"q": "Habitat for Humanity",
"ein": null,
"page": 0,
"state": "TX",
"nteeCode": null,
"subsectionCode": null
},
"returned": 25
},
"page": {
"size": 100,
"pages": 4,
"number": 0
},
"items": [
{
"ein": "990642738",
"city": "San Antonio",
"name": "Habitat For Humanity Regional",
"score": 112.28756,
"state": "TX",
"subName": "Habitat For Humanity Regional",
"nteeCode": "L99",
"einFormatted": "99-0642738",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "742650392",
"city": "Victoria",
"name": "Habitat For Humanity International Inc",
"score": 108.81581,
"state": "TX",
"subName": "Habitat For Humanity International Inc Golden Crescent Habitat For Humanit",
"nteeCode": null,
"einFormatted": "74-2650392",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752381356",
"city": "Midland",
"name": "Habitat For Humanity International Inc",
"score": 107.10107,
"state": "TX",
"subName": "Habitat For Humanity International Inc Midland Habitat For Humanity",
"nteeCode": null,
"einFormatted": "75-2381356",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752130884",
"city": "Waco",
"name": "Habitat For Humanity International Inc",
"score": 107.10107,
"state": "TX",
"subName": "Habitat For Humanity International Inc Waco Habitat For Humanity",
"nteeCode": "L20Z",
"einFormatted": "75-2130884",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "742704483",
"city": "Killeen",
"name": "Habitat For Humanity International Inc",
"score": 106.81602,
"state": "TX",
"subName": "Habitat For Humanity International Inc Fort Hood Area Habitat For Humanity",
"nteeCode": "L20Z",
"einFormatted": "74-2704483",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752443511",
"city": "Mckinney",
"name": "Habitat For Humanity International Inc",
"score": 105.53693,
"state": "TX",
"subName": "Habitat For Humanity International Inc Habitat For Humatiy Of Collin Cnty",
"nteeCode": "L202",
"einFormatted": "75-2443511",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "202556383",
"city": "Buda",
"name": "Habitat For Humanity International Inc",
"score": 105.38248,
"state": "TX",
"subName": "Habitat For Humanity International Inc Habitat For Humanity Texas Inc",
"nteeCode": "L20Z",
"einFormatted": "20-2556383",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752959894",
"city": "Waxahachie",
"name": "Habitat For Humanity International",
"score": 104.27612,
"state": "TX",
"subName": "Habitat For Humanity International Ellis County Inc",
"nteeCode": "L20Z",
"einFormatted": "75-2959894",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "452835065",
"city": "Pampa",
"name": "Habitat For Humanity International Inc",
"score": 103.80671,
"state": "TX",
"subName": "Habitat For Humanity International Inc Habitat For Humanity Pampa Gray Cou",
"nteeCode": null,
"einFormatted": "45-2835065",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "742373217",
"city": "Austin",
"name": "Austin Habitat For Humanity Inc",
"score": 102.7737,
"state": "TX",
"subName": "Austin Habitat For Humanity Inc",
"nteeCode": null,
"einFormatted": "74-2373217",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "760207084",
"city": "Houston",
"name": "Houston Habitat For Humanity Inc",
"score": 102.7737,
"state": "TX",
"subName": "Houston Habitat For Humanity Inc",
"nteeCode": "L20Z",
"einFormatted": "76-0207084",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "742504676",
"city": "Mcallen",
"name": "Rio Grande Habitat For Humanity",
"score": 102.7737,
"state": "TX",
"subName": "Rio Grande Habitat For Humanity",
"nteeCode": null,
"einFormatted": "74-2504676",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "751820887",
"city": "Amarillo",
"name": "Amarillo Habitat For Humanity Inc",
"score": 102.7737,
"state": "TX",
"subName": "Amarillo Habitat For Humanity Inc",
"nteeCode": "L20Z",
"einFormatted": "75-1820887",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "272140415",
"city": "Beeville",
"name": "Bee County Habitat For Humanity",
"score": 102.7737,
"state": "TX",
"subName": "Bee County Habitat For Humanity",
"nteeCode": "L20",
"einFormatted": "27-2140415",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752613992",
"city": "Lufkin",
"name": "Habitat For Humanity International Inc",
"score": 102.35668,
"state": "TX",
"subName": "Habitat For Humanity International Inc Habitat For Humanity Of Deep East T",
"nteeCode": null,
"einFormatted": "75-2613992",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "760634493",
"city": "Houston",
"name": "Endowment For Houston Habitat For Humanity",
"score": 102.30408,
"state": "TX",
"subName": "Endowment For Houston Habitat For Humanity",
"nteeCode": "L11",
"einFormatted": "76-0634493",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "742728646",
"city": "Laredo",
"name": "Habitat For Humanity International Inc",
"score": 100.13545,
"state": "TX",
"subName": "Habitat For Humanity International Inc Laredo",
"nteeCode": null,
"einFormatted": "74-2728646",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752408749",
"city": "Lubbock",
"name": "Habitat For Humanity International Inc",
"score": 100.13545,
"state": "TX",
"subName": "Habitat For Humanity International Inc Lubbock",
"nteeCode": "L20Z",
"einFormatted": "75-2408749",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752518983",
"city": "Nacogdoches",
"name": "Habitat For Humanity International Inc",
"score": 100.13545,
"state": "TX",
"subName": "Habitat For Humanity International Inc Nacogdoches",
"nteeCode": null,
"einFormatted": "75-2518983",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "760355468",
"city": "Sugar Land",
"name": "Habitat For Humanity International Inc",
"score": 99.484055,
"state": "TX",
"subName": "Habitat For Humanity International Inc Fort Bend Hfh",
"nteeCode": null,
"einFormatted": "76-0355468",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752321956",
"city": "Abilene",
"name": "Habitat For Humanity International Inc",
"score": 97.86403,
"state": "TX",
"subName": "Habitat For Humanity International Inc Abilene Hfh",
"nteeCode": "L20Z",
"einFormatted": "75-2321956",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752405936",
"city": "Wichita Falls",
"name": "Habitat For Humanity International Inc",
"score": 97.86403,
"state": "TX",
"subName": "Habitat For Humanity International Inc Wichita Falls",
"nteeCode": "L20Z",
"einFormatted": "75-2405936",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "760316826",
"city": "Baytown",
"name": "Habitat For Humanity International Inc",
"score": 97.86403,
"state": "TX",
"subName": "Habitat For Humanity International Inc Baytown Hfh",
"nteeCode": null,
"einFormatted": "76-0316826",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752532858",
"city": "San Angelo",
"name": "Habitat For Humanity International Inc",
"score": 97.86403,
"state": "TX",
"subName": "Habitat For Humanity International Inc San Angelo",
"nteeCode": null,
"einFormatted": "75-2532858",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
},
{
"ein": "752649015",
"city": "Granbury",
"name": "Habitat For Humanity International Inc",
"score": 97.86403,
"state": "TX",
"subName": "Habitat For Humanity International Inc Hood County",
"nteeCode": null,
"einFormatted": "75-2649015",
"subsectionCode": 3,
"subsectionDesc": "501(c)(3) Charitable / Religious / Educational"
}
],
"total": 77,
"source": {
"url": "https://projects.propublica.org/nonprofits/",
"license": "IRS public-domain source data; ProPublica wrapper free under their API ToS.",
"provider": "ProPublica Nonprofit Explorer (IRS Form 990 + BMF data)"
}
},
"meta": {
"cost": {
"usd": 0.0012,
"tier": 0
},
"caller": "x402",
"version": null,
"endpoint": "nonprofit.search",
"settlement": {
"txHash": "0xe7f8eddd43e828201c4424c36a39b092f6ac59281c02767188b59d5b80f8f6de",
"network": "eip155:8453",
"success": true
}
}
}Tags
x402
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