# UCC Reverse Lien Lookup by Secured Party (Creditor)

> UCC Reverse Lien Lookup by Secured Party (Creditor) is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).

Given a lender or creditor name and US state, returns the list of business debtors on which that party currently holds active UCC liens in that state.

## Facts

- Endpoint: GET https://api.agentstools.dev/ucc/creditor
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ucc-reverse-lien-lookup-by-secured-party-creditor-401b76e4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HT7UC8QaSW9rhzdB8kKYd

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 ucc-reverse-lien-lookup-by-secured-party-creditor-401b76e4
```

Example prompt: Can you pull the UCC lien portfolio for Wells Fargo in Connecticut — I want to see all the business debtors they currently have active liens against in that state?

## When to prefer this

Use this endpoint when you need to perform a reverse lien lookup — starting from a known lender or creditor and discovering which business debtors they have secured claims against in a specific state. Ideal for competitive intelligence (mapping a competitor lender's portfolio), counterparty risk analysis, due diligence on a creditor's existing collateral exposure, or cross-referencing a debtor's financing relationships. Prefer this over forward UCC lookup (debtor-first) when you know the creditor identity and want to enumerate their debtors.

## Known failure modes

- No results found if the secured party name doesn't fuzzy-match any filer in the state index
- State not supported — currently only CT is available in the enum, other state codes will be rejected
- Rate limiting or payment failure (x402 micropayment not processed)
- Ambiguous creditor name matching multiple entities may return mixed results
- State UCC index may have processing lag, so very recent filings might not appear

## How this service works

Reverse lien lookup by secured party. Give a lender or creditor name and a state and get the business debtors on which that party currently holds active liens — their lien portfolio in that state, for competitive intelligence or counterparty mapping. Cited to the official state open-data portal. Informational public record.

## Output

A list of business debtors (companies or entities) against which the specified secured party currently holds active UCC liens in the given state, sourced from the official state open-data portal. Includes debtor names and relevant lien details, cited to the public record.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "secured_party"
     ],
     "properties": {
      "state": {
       "enum": [
        "CT"
       ],
       "type": "string",
       "description": "Two-letter state code of the UCC index to search"
      },
      "secured_party": {
       "type": "string",
       "description": "The secured party / lender name (fuzzy-matched)"
      }
     }
    }
   },
   "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/ucc-reverse-lien-lookup-by-secured-party-creditor-401b76e4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentstools.dev](https://www.zero.xyz/host/api.agentstools.dev/llms.txt)