# Public Transit Open Data Search for Agent Builders

> Public Transit Open Data Search for Agent Builders is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Searches live public web pages for public transit open data (GTFS, realtime feeds, city data) and returns source links and snippets relevant to agent builders.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/pulse-web-public-transit-open-data-agent-builders?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/public-transit-open-data-search-for-agent-builders-7aa68426
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JWzCBjoBgxJWzxpfmQZQN

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 public-transit-open-data-search-for-agent-builders-7aa68426 -d '<json body>'
```

Example prompt: Search for live public transit open data feeds and GTFS realtime sources for agent builders — return up to 5 results with links and snippets so I can find data sources for building my transit agent.

## When to prefer this

Use this endpoint when an agent needs to discover public transit open data sources, GTFS feeds, or city transit APIs from live web content, especially during the research phase of building a transit-oriented agent. Prefer this over static datasets when you need fresh, discoverable links from public web pages.

## Known failure modes

- Query returns no relevant results if too narrow or city-specific without enough indexed content
- max_results out of range (must be 1–10) causes validation error
- Network or crawl failures may return stale or empty snippets
- Highly niche transit agencies may not have indexed open data pages

## How this service works

Public transit open data for Agent builders: Search live public web pages about public transit open data, focused on agent builders. Returns source links and snippets, not endorsements.

## Output

Returns a list of source links and text snippets from live public web pages about public transit open data, including GTFS feeds, realtime data portals, and developer-oriented transit resources. Results are not endorsements.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "default": "public transit GTFS realtime open data feeds city Agent builders",
   "description": "Optional focused query."
  },
  "max_results": {
   "type": "integer",
   "default": 5,
   "maximum": 10,
   "minimum": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/public-transit-open-data-search-for-agent-builders-7aa68426/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)