# Lodestar Index Trust Stamp Lookup

> Lodestar Index Trust Stamp Lookup is a paid API for AI agents from api.lodestarindex.com, paid per call via x402, $1/call, status unknown (last checked 2026-10-28).

Retrieves a single Lodestar Stamp trust receipt for a specific business identified by domain, phone, address, or license number

## Facts

- Endpoint: GET https://api.lodestarindex.com/v1/trust?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lodestar-index-trust-stamp-lookup-412aaad5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5ywTVnOHe8IqTpT6Im1FA

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 lodestar-index-trust-stamp-lookup-412aaad5
```

Example prompt: Can you check the Lodestar trust stamp for the restaurant at domain bestpizza.com in the chicago-restaurants market to see if they're verified?

## When to prefer this

Use this endpoint when you need to verify the trust status of a single, specific business and you have at least one precise identifier (domain, phone, address, or city license number). Prefer this over the shortlist/batch sibling endpoint when you already know exactly which business you're checking and want a direct one-shot trust receipt without browsing a list.

## Known failure modes

- No matching business found for the provided identifier — returns empty or 404 response
- More than one of the mutually exclusive query params (domain, phone, license, address) provided simultaneously — request rejected
- Invalid or unrecognized market slug — lookup may fail or return no results
- Payment failure via x402 protocol — call not executed, $1 USDC not deducted
- Business exists but has no Lodestar Stamp on record — receipt absent

## How this service works

Read your restaurant’s dated public receipt free. Watching delivers the baseline and published changes: first month free, then $149/month. On the record: verified against public sources and dated. We don't approve the booking. Payment never touches the record.

## Output

Returns a single Lodestar Stamp trust receipt for the queried business, indicating the trust status and verification signals associated with that business entity as identified by domain, phone, address, or license number.

## 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",
     "properties": {
      "phone": {
       "type": "string",
       "description": "Business phone number."
      },
      "domain": {
       "type": "string",
       "description": "Business website domain. Send exactly one of domain, phone, license or address."
      },
      "market": {
       "type": "string",
       "description": "Market slug from /v1/markets, e.g. chicago-restaurants or chicago-hvac."
      },
      "address": {
       "type": "string",
       "description": "Street address of the exact location."
      },
      "license": {
       "type": "string",
       "description": "City licence number."
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lodestar-index-trust-stamp-lookup-412aaad5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.lodestarindex.com](https://www.zero.xyz/host/api.lodestarindex.com/llms.txt)