Look up US 501(c) nonprofits and screen each result against the OFAC sanctions list in one call. Pass q (organization name) or ein; each matched organization returns its registry record (EIN, name, location, NTEE code, subsection) plus a sanctions block — flagged status, match count, and the matching SDN entries with confidence scores. Grant-making due diligence, donation compliance, and charity-fraud triage. Components also standalone: /api/nonprofit/search (registry only) and /api/law/sanctions-check (screen any name). Same composition family as /api/business/entity-screen.
/api/nonprofit/screenPAYMENT-SIGNATURE.The screen API is a pay-per-call nonprofit endpoint built for AI agents and autonomous software. Look up US 501(c) nonprofits and screen each result against the OFAC sanctions list in one call.
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 screen data source for an agent tool-use loop, an MCP host, or a backend that needs nonprofit data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
q | string | Organization name. Provide q or ein, not both. min 2 chars · max 120 chars |
ein | string | match ^\d{9}$ |
limit | integer | min 1 · max 10 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/nonprofit/screen?q=xx&ein=12345&limit=5' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/nonprofit/screen?q=xx&ein=12345&limit=5' \ -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/nonprofit/screen?q=xx&ein=12345&limit=5'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.nonprofit.screen({
"q": "xx",
"ein": "12345",
"limit": 5
})
console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)import os
from twosio import TwoS
client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])
result = client.nonprofit.screen(q="xx", ein="12345", limit=5)
print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)// 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": "nonprofit.screen",
"arguments": {
"q": "xx",
"ein": "12345",
"limit": 5
}
}
}| Field | Type | Description |
|---|---|---|
query | string | |
count | number | |
organizations | array | |
sources | array |
{
"query": "example",
"count": 1,
"organizations": [
{
"org": {},
"sanctions": {
"found": false,
"error": "example",
"flagged": false,
"matchCount": 1,
"matches": [
{}
]
}
}
],
"sources": [
{
"provider": "example",
"url": "example",
"license": "example"
}
]
}