# Route Evidence Catalog Pulse API

> Route Evidence Catalog Pulse API is a paid API for AI agents from route-catalog.krimskrams.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Returns a real-time snapshot count of public paid API listings across collected snapshots, including route metadata, seller hosts, payment receivers, network, pricing, HTTP method counts, and 24-hour change deltas.

## Facts

- Endpoint: GET https://route-catalog.krimskrams.xyz/v1/pulse
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/route-evidence-catalog-pulse-api-e1299e11
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Bo5p3zMAqElp5IUHrAA6O

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 route-evidence-catalog-pulse-api-e1299e11
```

Example prompt: Give me the latest pulse on the public paid API catalog — how many routes are listed right now, which seller hosts are new or removed, and how has the total count changed in the last 24 hours?

## When to prefer this

Choose this endpoint when you need a real-time aggregate snapshot of the public paid API ecosystem, specifically tracking x402-protocol routes, seller host churn, and 24-hour listing deltas. Prefer this over manual web scraping or broader API directories when you specifically want monetized API route intelligence with payment metadata (receiver, network, price).

## Known failure modes

- Invalid HTTP method supplied (only GET, HEAD, DELETE accepted) — returns validation error
- Service temporarily unavailable or snapshot data stale — may return outdated counts
- Payment not processed correctly via x402 — request rejected before data is returned
- Rate limiting if called too frequently — may return 429 or similar

## How this service works

Count public paid API listings across collected snapshots. Receive JSON with route, seller-host, pay-to receiver, network, price, and HTTP method counts, plus new and removed seller hosts and the 24-hour route-count change.

## Output

A JSON object containing: total count of public paid API listings across snapshots, per-route details (route path, seller host, pay-to receiver, network, price, HTTP method), counts grouped by HTTP method, lists of newly added and removed seller hosts, and the numeric 24-hour change in route count.

## 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": {},
     "additionalProperties": false
    }
   },
   "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/route-evidence-catalog-pulse-api-e1299e11/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from route-catalog.krimskrams.xyz](https://www.zero.xyz/host/route-catalog.krimskrams.xyz/llms.txt)