# PaySponge Chains & Payment Options Listing

> PaySponge Chains & Payment Options Listing is a free API for AI agents from api.paysponge.com, callable via x402, Free, status unknown (last checked 2026-10-11).

Lists the supported blockchain networks and payment options available for a specific PaySponge paid API service endpoint.

## Facts

- Endpoint: GET https://api.paysponge.com/x402/purchase/svc_d6tc4d89rramggb4m/chains?utm_source=zero.xyz
- Price: Free
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-paysponge-com-ee88ae28
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ApxKKBDCI0d8ExMMab31e

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 api-paysponge-com-ee88ae28
```

Example prompt: What blockchain networks and payment tokens are supported for this PaySponge API service — I want to know if I can pay with USDC on Base or Solana before I try to call it.

## When to prefer this

Use this endpoint before attempting a paid API call to discover which chains and tokens are accepted, so you can prepare the correct on-chain payment. Prefer this when you need to programmatically check payment compatibility rather than relying on hardcoded assumptions about supported networks.

## Known failure modes

- Service ID not found — returns 404 or empty response
- Service temporarily unavailable — returns 5xx error
- No chains configured for the service — returns empty list

## How this service works

Lists supported chains and payment options for this paid API endpoint.

## Output

A list of supported blockchain chains and accepted payment tokens/assets for the specified PaySponge service endpoint, enabling a caller to determine which network and currency to use when making a paid API request.

## 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",
     "const": "json"
    },
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   },
   "additionalProperties": false
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-paysponge-com-ee88ae28/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.paysponge.com](https://www.zero.xyz/host/api.paysponge.com/llms.txt)