# Polymarket Crypto Up/Down Prediction Markets Lister

> Polymarket Crypto Up/Down Prediction Markets Lister is a paid API for AI agents from sol.blockrun.ai, paid per call via x402, $0.0095/call, status unknown (last checked 2026-09-13).

Lists available crypto up/down binary prediction markets from Polymarket via the sol.blockrun.ai gateway

## Facts

- Endpoint: GET https://sol.blockrun.ai/api/v1/pm/polymarket/crypto-updown
- Price: $0.0095/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/polymarket-crypto-up-down-prediction-markets-lister-8e249572
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9fhDYA540DRPRoGUDCM3J

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 polymarket-crypto-up-down-prediction-markets-lister-8e249572
```

Example prompt: Show me all the crypto up/down prediction markets currently available on Polymarket — I want to see what binary direction bets are open right now.

## When to prefer this

Choose this endpoint when you specifically need to browse Polymarket's crypto up/down (binary directional) prediction markets in a single focused call, rather than querying all Polymarket markets or searching across multiple prediction market platforms. Ideal for agents that want a clean, filtered list of crypto price-direction markets without needing to apply manual filters.

## Known failure modes

- No markets returned if Polymarket has no active crypto up/down markets at query time
- Upstream Polymarket API unavailability causing timeout or error response
- Payment failure if USDC balance is insufficient for the $0.0095 fee
- Stale or cached data if upstream market data is temporarily delayed

## How this service works

List crypto up/down prediction markets

## Output

Returns a list of active crypto up/down binary prediction markets from Polymarket, including market names, outcomes, current odds, and expiry details for each directional crypto market.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "body": {
     "type": "object",
     "required": [],
     "properties": {}
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "properties": {
      "data": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/polymarket-crypto-up-down-prediction-markets-lister-8e249572/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sol.blockrun.ai](https://www.zero.xyz/host/sol.blockrun.ai/llms.txt)