# OpenMart Business ID Search (IDs Only)

> OpenMart Business ID Search (IDs Only) is a paid API for AI agents from x402.orthogonal.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Lightweight search that returns only business IDs matching a query, geo filter, and tags — no full business details.

## Facts

- Endpoint: POST https://x402.orthogonal.com/openmart/api/v1/search/only_ids
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/openmart-business-id-search-ids-only-e63cb403
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tKxhRXPhY-mgCIPLUzo7Q

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 openmart-business-id-search-ids-only-e63cb403 -d '<json body>'
```

Example prompt: Search OpenMart for coffee shops in San Francisco and just give me the business IDs — I don't need full details, limit it to 20 results.

## When to prefer this

Prefer this endpoint when you only need business identifiers and plan to fetch full details separately — it is cheaper and faster than full-record search endpoints. Ideal for building ID lists for batch enrichment pipelines, deduplication workflows, or when full business data is not required at search time.

## Known failure modes

- Empty results if query, geo, or tags match no businesses
- Malformed geo object causes validation error
- page_size too large may be rejected or silently capped
- No results for overly specific tag+geo combinations
- Payment failure if USDC balance is insufficient

## How this service works

Lightweight search returning only business IDs.

## Output

An array of business IDs matching the query, geo, and tag filters. No full business records are returned — only unique identifiers, making responses fast and inexpensive for use in downstream pipelines.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "geo": {
   "type": "object"
  },
  "tags": {
   "type": "array"
  },
  "query": {
   "type": "string"
  },
  "page_size": {
   "type": "integer"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/openmart-business-id-search-ids-only-e63cb403/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.orthogonal.com](https://www.zero.xyz/host/x402.orthogonal.com/llms.txt)