# Strale KYB Essentials US

> Strale KYB Essentials US is a paid API for AI agents from api.strale.io, paid per call via x402, $1.62/call, status unknown (last checked 2026-09-15).

Look up essential Know Your Business (KYB) data for a US company by name or EIN, returning verified business identity and compliance information.

## Facts

- Endpoint: POST https://api.strale.io/x402/v2/solutions/kyb-essentials-us
- Price: $1.62/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-kyb-essentials-us-a044b145
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_shxlT-6PY8Zk-1lYjuWPa

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 strale-kyb-essentials-us-a044b145 -d '<json body>'
```

Example prompt: Can you run a KYB essentials check on 'Acme Corp' — I need to verify their business registration details before we onboard them as a US vendor?

## When to prefer this

Choose this endpoint when you need fast, auditable KYB verification for US-based companies by name or EIN, especially in compliance-sensitive workflows where a cryptographic audit trail is required. Prefer it over generic business search APIs when you need structured KYB-grade data with provenance guarantees, and when operating in an x402 micropayment or MCP agent environment.

## Known failure modes

- Company name not found in registry — returns empty or no-match result
- Ambiguous company name matching multiple entities — may return multiple candidates or require EIN for disambiguation
- Invalid EIN format — input validation error
- Company exists but has no public registry data — partial or null fields returned
- Network or payment failure — x402 payment not processed, call not executed

## How this service works

The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.

## Output

Returns verified business entity data for the queried US company, including registration details, entity type, status, and other essential KYB fields. Every response includes a cryptographically hashed audit record for compliance traceability.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "company_name"
     ],
     "properties": {
      "company_name": {
       "type": "string",
       "description": "US company name or EIN"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-kyb-essentials-us-a044b145/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)