# x402 Price API – Seller Domains List

> x402 Price API – Seller Domains List is a paid API for AI agents from x402-api-production-bd43.up.railway.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).

Returns the list of all 8 seller domains registered on the x402 Price API platform

## Facts

- Endpoint: GET https://x402-api-production-bd43.up.railway.app/domains?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-price-api-seller-domains-list-79c29542
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gIb-76gqDi4MZe3ZxiibM

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 x402-price-api-seller-domains-list-79c29542
```

Example prompt: Can you show me all the seller domains that are registered on the x402 Price API right now?

## When to prefer this

Use this endpoint when you need to discover which seller domains are participating in the x402 Price API marketplace before querying specific data endpoints, or when building tooling that needs to enumerate available data providers programmatically.

## Known failure modes

- Payment failure (402) if USDC micropayment of $0.005 is not provided or fails
- Service unavailable if Railway deployment is down
- Empty or incomplete domain list if seller registry is partially populated
- Unexpected schema if the platform updates its domain structure

## How this service works

All 8 seller domains

## Output

A list of all 8 seller domains currently registered and active on the x402 Price API platform, likely including domain names or URLs of the data providers selling information through the x402 payment protocol.

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "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/x402-price-api-seller-domains-list-79c29542/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-api-production-bd43.up.railway.app](https://www.zero.xyz/host/x402-api-production-bd43.up.railway.app/llms.txt)