# FINRA BrokerCheck Disciplinary Registry Lookup

> FINRA BrokerCheck Disciplinary Registry Lookup is a paid API for AI agents from api.osf-master-server.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Performs a live disciplinary check of a stockbroker, investment adviser, or brokerage firm against the FINRA BrokerCheck registry, returning CRD number, registration status, disclosures, and employer history.

## Facts

- Endpoint: GET https://api.osf-master-server.com/x402/broker/check/:query
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/finra-brokercheck-disciplinary-registry-lookup-51b990ee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C5Bp1wTmfzivO3du1P-04

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 finra-brokercheck-disciplinary-registry-lookup-51b990ee
```

Example prompt: Can you run a FINRA BrokerCheck disciplinary check on 'Raymond Scott' — I want to know if he's currently registered, whether there are any disclosures or a permanent bar, and who his listed employers are?

## When to prefer this

Use this endpoint when you need a live, provenance-stamped FINRA BrokerCheck result for a specific named broker, adviser, or firm — especially for KYC, AML, counterparty due diligence, or fraud screening workflows where regulatory registration status and disciplinary history are required. Prefer this over general web search when you need structured, machine-readable output with a FINRA source URL for audit trail purposes.

## Known failure modes

- No match found for the given name — broker or firm not in FINRA registry
- Ambiguous name returns multiple results requiring disambiguation
- Query string too vague or too short to resolve a unique record
- FINRA BrokerCheck upstream unavailable causing service degradation
- Payment not processed — 402 response requiring x402 micropayment
- Rate limiting or quota exceeded

## How this service works

Live disciplinary check of a stockbroker, investment adviser, or brokerage firm against the FINRA BrokerCheck registry. Returns CRD number, registration status, disclosure flag, permanent bar flag, employers, and a FINRA provenance URL per match. For KYC, AML, counterparty due diligence, adviser vetting, and fraud checks. Companion to the 11 authority sanctions screen.

## Output

Returns a record per match including CRD number, current registration status, a boolean disclosure flag, a permanent bar flag, a list of employer firms, and a FINRA BrokerCheck provenance URL for verification.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "query"
     ],
     "properties": {
      "query": {
       "type": "string",
       "description": "Broker, investment adviser, or firm name to check. E.g. 'Bernard Madoff' or 'Citadel Advisors'."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "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/finra-brokercheck-disciplinary-registry-lookup-51b990ee/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.osf-master-server.com](https://www.zero.xyz/host/api.osf-master-server.com/llms.txt)