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Family Office Knowledge Graph API
x402
Family Office Knowledge Graph API is a paid API for AI agents from familyofficeknowledgegraph.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).
Returns a signed, verifiable record node (LEI, legal name, aliases, register IDs, field states, as-of timestamp) from the Family Office Knowledge Graph index for $0.01 USDC per lookup.
Price / call$0.01
Success—
StatusUnknown
How this service works
The Family Office Knowledge Graph index of record for $0.01 USDC — every node's record list (LEI, legal name, aliases, register ids, field states, as-of) as a signed statement (EdDSA, kid fo-kg-x402-2026-09) with a receipt that resolves forever at /x402/receipt/{nonce}. Operator: Agentic KG Holdings.
Output
A cryptographically signed statement (EdDSA, key ID fo-kg-x402-2026-09) containing the entity node's LEI, legal name, aliases, register IDs, field states, and as-of timestamp, along with a permanent receipt URL at /x402/receipt/{nonce} that resolves forever.
Example use cases
KYC onboarding for a family office
“I need to onboard Bessemer Trust as a counterparty — can you fetch their LEI, legal name, aliases, and registration IDs from the Family Office Knowledge Graph so I can complete the KYC file?”
Verifying entity identity before wiring funds
“Before we wire to this family office, can you pull their signed identity record from the Family Office Knowledge Graph and confirm their LEI and legal name match what they gave us?”
Enriching a CRM record with authoritative entity data
“We have a record for Pitcairn Trust in our CRM but it's missing the LEI and official aliases — can you look them up in the Family Office Knowledge Graph and give me the canonical details with the as-of date?”
Technical details
Endpoint
GEThttps://familyofficeknowledgegraph.ai/api?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative, cryptographically signed identity records (LEI, legal name, aliases, register IDs) specifically for family office entities, and when tamper-evident provenance (EdDSA signature + permanent receipt) is required. It is purpose-built for the family office segment of private wealth, making it more targeted than generic LEI registries or broad corporate entity databases.
Side effects
- Entity not found in the knowledge graph — returns an empty or error response
- Invalid or missing required input parameters (type or method) — returns a 400-level error
- Payment not processed or insufficient USDC — returns a 402 Payment Required
- Nonce receipt URL not yet propagated — receipt may take a moment to resolve after payment
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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