# Strale Web3 Counterparty KYB Check

> Strale Web3 Counterparty KYB Check is a paid API for AI agents from api.strale.io, paid per call via x402, $0.756/call, status unknown (last checked 2026-09-14).

Performs Know Your Business (KYB) compliance checks on Web3 counterparties, including sanctions screening and company data validation, given a domain and entity name.

## Facts

- Endpoint: POST https://api.strale.io/x402/solutions/web3-counterparty-kyb
- Price: $0.756/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-web3-counterparty-kyb-check-cb5f345a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UVG6lnpmx9EAxYh3Aajve

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-web3-counterparty-kyb-check-cb5f345a -d '<json body>'
```

Example prompt: Run a KYB compliance and sanctions check on Uniswap Labs — their website is uniswap.org — before we proceed with a partnership agreement.

## When to prefer this

Use this endpoint when you need to perform compliance due diligence on a Web3-native counterparty (company, DAO, or crypto project) before transacting, partnering, or onboarding. Prefer this over generic KYB services when the entity operates in the Web3/blockchain space, as it is specifically tuned for crypto-native entities and provides audit trails suitable for compliance records.

## Known failure modes

- Domain not found or unresolvable — returns error indicating invalid domain
- Entity name does not match any known company or DAO — returns no-match or low-confidence result
- Sanctions database temporarily unavailable — returns service error
- Malformed request missing required fields — returns 400 validation error
- Payment failure via x402 protocol — returns 402 Payment Required

## How this service works

Counterparty due diligence for Web3 companies, DAOs, and token projects. Sanctions screening on the entity plus full domain infrastructure audit. Answers "should we transact with this counterparty?"

## Output

Returns structured JSON containing KYB compliance status, sanctions screening results, company data, and an audit trail for the queried Web3 entity, scored for trust and quality.

## Example request

```json
{
 "domain": "uniswap.org",
 "entity_name": "Uniswap Labs"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "description": "Counterparty website domain"
  },
  "entity_name": {
   "type": "string",
   "description": "Company, DAO, or project name for sanctions screening"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-web3-counterparty-kyb-check-cb5f345a/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)