# UK Persons with Significant Control (PSC) Lookup

> UK Persons with Significant Control (PSC) Lookup is a paid API for AI agents from api.x-402.online, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).

Retrieves UK beneficial ownership data (Persons with Significant Control) from Companies House for KYB/AML purposes, queryable by company name or number.

## Facts

- Endpoint: GET https://api.x-402.online/v1/uk/psc
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uk-persons-with-significant-control-psc-lookup-f4ad125b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KcoM2e_j7CUhij8JeMzlv

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 uk-persons-with-significant-control-psc-lookup-f4ad125b
```

Example prompt: Who are the beneficial owners of Revolut Ltd in the UK? I need the persons with significant control for a KYB check — can you look it up by company name?

## When to prefer this

Use this endpoint when you need UK-specific beneficial ownership (PSC) data for KYB or AML due diligence on a UK-registered company. Prefer it over generic company lookup endpoints when the goal is ownership/control structure rather than company profile. It complements the UK company profile and directors endpoints on the same platform for a full KYB picture.

## Known failure modes

- Company not found — returns empty results if company name or number doesn't match any Companies House record
- Ambiguous company name — multiple matches returned requiring disambiguation by company number
- No PSC registered — some companies have exempt or corporate PSC structures with limited data
- Rate limiting or payment failure — 402 payment required if USDC payment not processed
- Invalid query parameter — missing ?q= or ?number= returns an error

## How this service works

UK beneficial owners — Persons with Significant Control (Companies House), key for KYB/AML. Query: ?q= or ?number=

## Output

Returns a list of Persons with Significant Control (PSC) for the queried UK company, including each person's name, nature of control, ownership percentage or voting rights, appointment date, nationality, and country of residence — sourced from the UK Companies House register.

## 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"
     ],
     "type": "string"
    },
    "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/uk-persons-with-significant-control-psc-lookup-f4ad125b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x-402.online](https://www.zero.xyz/host/api.x-402.online/llms.txt)