# AgentsTools Prediction Market Cross-Venue Search

> AgentsTools Prediction Market Cross-Venue Search is a paid API for AI agents from api.agentstools.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Searches and returns normalized prediction markets from Polymarket and Manifold in a single unified schema with implied probability, volume, liquidity, outcomes, and status.

## Facts

- Endpoint: GET https://api.agentstools.dev/prediction/search
- 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/agentstools-prediction-market-cross-venue-search-adfaface
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XLVTO6Lb_EmT_njNO1ghP

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 agentstools-prediction-market-cross-venue-search-adfaface
```

Example prompt: Search prediction markets on both Polymarket and Manifold for anything related to the 2024 US presidential election and show me up to 20 results ranked by relevance, with probabilities and volume.

## When to prefer this

Use this endpoint when you need to survey the prediction market landscape on a topic without writing separate integrations for Polymarket and Manifold — especially when you want a single normalized schema so you can compare real-money and play-money sentiment side by side in one call.

## Known failure modes

- Missing required 'query' param returns 400 bad request
- Invalid 'venue' enum value returns 400 validation error
- Upstream venue API outage may return partial results or 503
- Limit exceeding 25 is clamped or rejected with 422
- Query too vague may return zero results with empty array

## How this service works

Cross-venue prediction-market search: one query returns a ranked list of NORMALIZED markets from Polymarket (real-money) and Manifold (play-money) under one schema — implied probability, outcomes, volume, liquidity, close date, status, money_type and a link-back. One call instead of hitting each venue's API and reconciling their shapes.

## Output

A ranked list of up to 25 normalized market objects, each containing: market title, implied probability, list of outcomes, trading volume, liquidity, close date, current status, money type (real vs play), source venue, and a direct link back to the market on its native platform.

## 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",
     "required": [
      "query"
     ],
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 25,
       "minimum": 1,
       "description": "Max markets to return (default 15, cap 25)"
      },
      "query": {
       "type": "string",
       "description": "Topic or free-text query to search markets for"
      },
      "venue": {
       "enum": [
        "polymarket",
        "manifold",
        "metaculus"
       ],
       "type": "string",
       "description": "Restrict to one venue by key"
      }
     }
    }
   },
   "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/agentstools-prediction-market-cross-venue-search-adfaface/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agentstools.dev](https://www.zero.xyz/host/api.agentstools.dev/llms.txt)