# Paysponge Polymarket Markets Listing

> Paysponge Polymarket Markets Listing is a paid API for AI agents from api.paysponge.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Fetches Polymarket prediction market listings via a pay-per-call crypto-gated endpoint accepting USDC on EVM and Solana networks.

## Facts

- Endpoint: GET https://api.paysponge.com/x402/purchase/svc_d5y7k40sm2ntn45xr/polymarket/markets
- 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/api-paysponge-com-6eac2330
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NiGMhxusO-ARjFXaGTskc

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-6eac2330
```

Example prompt: Can you pull up the current list of available Polymarket prediction markets for me? I'll pay with USDC.

## When to prefer this

Choose this endpoint when you need programmatic access to Polymarket market listings and are comfortable paying micro-fees in USDC via EVM or Solana. Prefer it over direct Polymarket API access when using the x402 pay-per-call pattern or when integrating into a crypto-native agent workflow that already handles on-chain payments.

## Known failure modes

- Payment not received or insufficient USDC balance — returns 402 Payment Required
- Invalid or unsupported chain/token used for payment — payment rejected
- Polymarket API unavailable upstream — returns 502 or 503 error
- Request malformed or unexpected query parameters — returns 400 Bad Request
- Rate limit exceeded — returns 429 Too Many Requests

## How this service works

Fetch Polymarket market listings via Paysponge pay-to-access endpoint; supports multi-asset crypto payments on EVM and Solana networks.

## Output

Returns a JSON object containing Polymarket market listings including market metadata such as market IDs, titles, descriptions, outcomes, liquidity, and trading status for currently available prediction markets.

## 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-6eac2330/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)