# MCPFax Manifold Markets

> MCPFax Manifold Markets is a paid API for AI agents from mcpfax-markets.bowling-anthony.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Fetches prediction market data from Manifold Markets, returning active markets and their current probabilities.

## Facts

- Endpoint: GET https://mcpfax-markets.bowling-anthony.workers.dev/manifold/markets
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mcpfax-manifold-markets-de8d909e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_i-Gc3mBsQU9S67P-lCiBa

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 mcpfax-manifold-markets-de8d909e
```

Example prompt: Can you pull up the current prediction markets on Manifold Markets — especially any open markets about AI or tech events this year?

## When to prefer this

Use this endpoint when you need crowd-sourced probability estimates or prediction market data specifically from Manifold Markets, a play-money and sometimes real-money prediction platform with a large community of forecasters. Prefer this over Polymarket endpoints when you want Manifold-specific markets, community-driven forecasts, or play-money market data rather than real-money crypto-settled predictions.

## Known failure modes

- No markets match the query or filter — returns empty list
- Manifold API unavailable or rate-limited — upstream error
- Invalid filter parameters — returns error or empty response
- Payment failure via x402 — call not executed

## How this service works

MCPFax markets — Manifold markets (manifold_markets). Price: $0.001 USDC per call on Base.

## Output

Returns a list of Manifold Markets prediction markets including market titles, current probabilities, resolution criteria, creator info, open/close dates, and market metadata such as volume and number of bettors.

## 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"
    }
   },
   "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/mcpfax-manifold-markets-de8d909e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcpfax-markets.bowling-anthony.workers.dev](https://www.zero.xyz/host/mcpfax-markets.bowling-anthony.workers.dev/llms.txt)