# Ysaere KYB Verify

> Ysaere KYB Verify is a paid API for AI agents from api.ysaere.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-13).

Screens a business entity against GLEIF, EDGAR, OFAC, and SAM registries and returns a consolidated risk rating

## Facts

- Endpoint: POST https://api.ysaere.com/v1/intel/kyb-verify
- Price: $0.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ysaere-kyb-verify-4a5b2023
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FH6hFelyaK6RhVqo7_WmG

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 ysaere-kyb-verify-4a5b2023 -d '<json body>'
```

Example prompt: Can you run a KYB check on Acme Corp — screen them against GLEIF, EDGAR, OFAC, and SAM and tell me their risk level before we onboard them as a vendor?

## When to prefer this

Choose this endpoint when you need a fast, multi-registry KYB screen that combines legal entity data (GLEIF), SEC filings (EDGAR), sanctions (OFAC), and federal exclusions (SAM) in a single call for $0.50 USDC. Ideal for agent workflows that need automated vendor onboarding, counterparty risk checks, or compliance screening without integrating four separate APIs. Prefer this over point solutions when breadth of coverage across both financial and government registries matters more than deep single-source data.

## Known failure modes

- Entity name not found in any registry — may return no match or ambiguous results
- Ambiguous or misspelled company name leading to incorrect entity match
- Network or upstream registry timeout causing failed lookup
- Insufficient funds or payment failure blocking the $0.50 USDC charge
- Rate limiting if too many requests are sent in rapid succession

## How this service works

Ysaere KYB verify — GLEIF+EDGAR+OFAC+SAM screen for $0.50 USDC; optional notarize:true stamps an evidence-pack receipt (included, integrity≠truth)

## Output

Returns a JSON object containing the entity's canonical name, a risk level ('low', 'medium', or 'high'), and a list of the registries screened (GLEIF, EDGAR, OFAC, SAM), along with a success flag indicating whether the verification completed successfully.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "notary": {
    "mode": "hash_only",
    "signature": "…",
    "verify_url": "https://api.ysaere.com/v1/notary/receipts/…",
    "content_hash": "v2:sha512:…"
   },
   "status": "verified",
   "screens_meta": [
    {
     "check": "gleif",
     "fetched_at": "2026-09-09T00:00:00.000Z",
     "response_hash": "v2:sha512:…"
    }
   ]
  },
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ysaere-kyb-verify-4a5b2023/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.ysaere.com](https://www.zero.xyz/host/api.ysaere.com/llms.txt)