Sweep a person's name across five US public registries in one call: FINRA securities brokers, federal-court attorneys (CourtListener), federal inmates (BOP), Texas trade licenses (TDLR), and Texas real-estate licenses (TREC). Returns one block per registry with found/error status, match count, and the matching records — name-matched CANDIDATES, deliberately not merged into one identity (same name does not mean same person; verify with each registry's identifier before acting). Due-diligence, KYC screening triage, and background-research staple. Each registry is also a standalone endpoint (/api/license/broker, /api/law/attorney-lookup, /api/gov/inmate-locator, /api/license/trades, /api/license/real-estate) for follow-up by identifier.
/api/person/cross-registryPAYMENT-SIGNATURE.The cross registry API is a pay-per-call person endpoint built for AI agents and autonomous software. Sweep a person's name across five US public registries in one call: FINRA securities brokers, federal-court attorneys (CourtListener), federal inmates (BOP), Texas trade licenses (TDLR), and Texas real-estate licenses (TREC).
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 cross registry data source for an agent tool-use loop, an MCP host, or a backend that needs person data on demand without onboarding to yet another vendor portal.
| Name | Type | Description |
|---|---|---|
namerequired | string | Person full name. "First Last" works best (the inmate registry needs split names). min 3 chars · max 120 chars · match ^[\p{L}][\p{L} .,'-]+$ |
limit | integer | min 1 · max 10 |
# 1. Probe with no auth → 402 envelope with PaymentRequirements curl -sS 'https://2s.io/api/person/cross-registry?name=xxx&limit=5' # 2. Sign + retry with PAYMENT-SIGNATURE: curl -sS 'https://2s.io/api/person/cross-registry?name=xxx&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/person/cross-registry?name=xxx&limit=5'
import { TwoS } from '@2sio/sdk'
const client = new TwoS({
privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})
const result = await client.person.crossRegistry({
"name": "xxx",
"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.person.cross_registry(name="xxx", 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": "person.cross-registry",
"arguments": {
"name": "xxx",
"limit": 5
}
}
}| Field | Type | Description |
|---|---|---|
name | string | |
note | string | Identity-resolution disclaimer — matches are candidates, not confirmed identities. |
brokers | object | |
attorneys | object | |
inmates | object | |
txTrades | object | |
txRealEstate | object | |
sources | array |
{
"name": "example",
"note": "example",
"brokers": {
"found": false,
"error": "example",
"count": 1,
"matches": [
{}
]
},
"attorneys": {
"found": false,
"error": "example",
"count": 1,
"matches": [
{}
]
},
"inmates": {
"found": false,
"error": "example",
"count": 1,
"matches": [
{}
]
},
"txTrades": {
"found": false,
"error": "example",
"count": 1,
"matches": [
{}
]
},
"txRealEstate": {
"found": false,
"error": "example",
"count": 1,
"matches": [
{}
]
},
"sources": [
{
"provider": "example",
"url": "example",
"license": "example"
}
]
}