# EU Crypto Firm MiCA Authorisation & Warning List Check

> EU Crypto Firm MiCA Authorisation & Warning List Check is a paid API for AI agents from agentdata-api.sander-van-aard.workers.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Checks whether a crypto-asset service provider (CASP) is authorised under EU MiCA regulations and whether it appears on the EU non-compliant entities warning list, using the official ESMA register.

## Facts

- Endpoint: POST https://agentdata-api.sander-van-aard.workers.dev/eu/crypto-firm-check
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eu-crypto-firm-mica-authorisation-warning-list-check-58b59443
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uPDdiLjPK96ztCuqCi3bC

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 eu-crypto-firm-mica-authorisation-warning-list-check-58b59443 -d '<json body>'
```

Example prompt: Before I send funds, can you check if Bitstamp is an authorised crypto-asset service provider under EU MiCA regulations, and whether it appears on any EU warning lists? Their domain is bitstamp.net.

## When to prefer this

Use this endpoint when you need to verify whether a specific crypto firm or exchange is officially authorised under EU MiCA regulations before transacting, onboarding, or recommending it. Prefer this over generic web searches when you need authoritative, machine-readable results with official source references from ESMA. Ideal for counterparty due diligence, compliance checks, and scam screening of crypto platforms operating in the EU.

## Known failure modes

- Firm not found in either ESMA register or warning list — returns empty results, not an error
- Invalid or unresolvable input (malformed LEI, empty name) — returns 400-level error
- ESMA data source temporarily unavailable — returns 503 or upstream error
- Ambiguous firm name matching multiple entries — may return multiple results requiring disambiguation
- Payment not included or rejected — returns 402 Payment Required

## How this service works

Is this crypto firm authorised in the EU? One call checks the official ESMA interim MiCA register of authorised crypto-asset service providers (CASPs) AND the EU non-compliant entities warning list. Search by firm name, platform website/domain, or LEI. Returns authorisation details (member state, competent authority, authorised services, LEI) and any warning-list entries, each with an official source reference. Firms only. Counterparty/scam check before sending funds to a platform.

## Output

Returns authorisation details from the ESMA interim MiCA register (member state, competent authority, authorised services, LEI) plus any matching warning-list entries, each with an official source reference. If not found in either list, indicates the firm has no known EU authorisation or warning.

## 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"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eu-crypto-firm-mica-authorisation-warning-list-check-58b59443/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdata-api.sander-van-aard.workers.dev](https://www.zero.xyz/host/agentdata-api.sander-van-aard.workers.dev/llms.txt)