Entity and counterparty verification by identifier or name
Entity and counterparty verification by identifier or name. Resolves US healthcare providers (CMS NPI), legal entities (GLEIF LEI), US banks (FDIC), SEC filers (EDGAR CIK or ticker), and US tax exempt orgs (IRS EIN). Returns legal name, status, jurisdiction, identifiers, and a provenance URL to the official source. For KYC, KYB, due diligence, and onboarding agent workflows.
Not answeringour last check, 2026-09-24
0 of 1checks answered this week
n/amedian answer time
$0.05listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://api.osf-master-server.com/x402/identity/entity/:query
| Category | Company and compliance |
|---|---|
| Provider host | api.osf-master-server.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | no answer |
Example input (from the provider)
{
"method": "GET",
"pathParams": {
"query": ":query"
},
"queryParams": {
"format": "json"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"pathParams": {
"type": "object"
},
"queryParams": {
"properties": {
"format": {
"description": "Response format (json).",
"type": "string"
}
},
"required": [
"format"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"audit_receipt": {
"type": "object"
},
"compliance_note": {
"type": "string"
},
"coverage_note": {
"type": "string"
},
"match_count": {
"type": "integer"
},
"matches": {
"type": "array"
},
"query": {
"type": "string"
},
"result": {
"description": "FOUND, NOT_FOUND, LOOKUP_UNAVAILABLE, or INVALID_INPUT",
"type": "string"
},
"service": {
"type": "string"
}
},
"required": [
"service",
"query",
"result",
"match_count",
"matches",
"compliance_note",
"audit_receipt"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}