# RelayShield Identity Graph Lookup

> RelayShield Identity Graph Lookup is a paid API for AI agents from api.relayshield.net, paid per call via x402, $0.35/call, status unknown (last checked 2026-10-12).

Looks up an email address against an identity graph to find correlated phone numbers, domains, and other linked identifiers

## Facts

- Endpoint: POST https://api.relayshield.net/v1/payg/identity-graph?utm_source=zero.xyz
- Price: $0.35/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/relayshield-identity-graph-lookup-413e5a1b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_YBtMJsT6SIgRDJbFTzwdV

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability relayshield-identity-graph-lookup-413e5a1b -d '<json body>'
```

Example prompt: Run an identity graph lookup on jane.doe@example.com and tell me what correlated phone numbers, domains, and other identifiers are linked to it.

## When to prefer this

Use this endpoint when you need to cross-reference an email address against an identity graph to discover linked phone numbers, domains, and other identifiers — particularly useful for fraud detection, contact enrichment, lead qualification, or identity verification workflows where you need to understand what other data points are associated with a known email.

## Known failure modes

- Email not found in identity graph — returns found: false with empty arrays
- Invalid or malformed email input — likely 4xx error
- No data sources available for the email — sources array empty but found may still be true
- Rate limiting or quota exceeded — 429 error
- Service unavailable — 5xx error

## How this service works

RelayShield Landing Site

## Output

Returns a JSON object with a found boolean, the queried email, a list of data sources, arrays of correlated phone numbers and domains, and a count of total correlated identifiers. If the email is not found, found is false and all arrays are empty.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string",
   "description": "Email address to correlate against the criminal dump corpus"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {
   "email": "user@example.com",
   "found": false,
   "sources": [],
   "correlated_phones": [],
   "correlated_domains": [],
   "correlated_identifiers": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/relayshield-identity-graph-lookup-413e5a1b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.relayshield.net](https://www.zero.xyz/host/api.relayshield.net/llms.txt)