Opinion Prediction Markets Listing

omnial/onchain-opinion-markets

Takes no input and returns one page of 20 prediction markets listed on Opinion, open and closed, in the supplier's own order: each market's ID, title, slug and status, its outcomes with token IDs and prices (null when a market has no price), total volume in USD, condition ID, parent event, chain ID and creation time.

activeper callv1

Price

Up to $0.0128 per call; you pay what the call used

The price shown is the price you pay. No monthly minimum. Top-ups start at $5.

Data source

Opinion

Data from Opinion.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "omnial/onchain-opinion-markets" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "omnial/onchain-opinion-markets" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "omnial/onchain-opinion-markets", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "omnial/onchain-opinion-markets", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0128

Updated: Oct 15, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "properties": {
    "markets": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "slug": {
            "type": "string"
          },
          "title": {
            "type": "string"
          },
          "status": {
            "type": "string",
            "description": "open or closed."
          },
          "chain_id": {
            "type": "string"
          },
          "event_id": {
            "type": "number"
          },
          "outcomes": {
            "type": "array",
            "items": {
              "type": "object",
              "properties": {
                "label": {
                  "type": "string",
                  "description": "The outcome label, such as YES or NO."
                },
                "price": {
                  "type": [
                    "number",
                    "null"
                  ],
                  "description": "The outcome price; null when the market has none."
                },
                "token_id": {
                  "type": "string",
                  "description": "The outcome's onchain token ID."
                }
              }
            }
          },
          "market_id": {
            "type": "number",
            "description": "The market's numeric ID."
          },
          "event_slug": {
            "type": "string"
          },
          "event_title": {
            "type": "string",
            "description": "The title of the event the market belongs to."
          },
          "condition_id": {
            "type": "string",
            "description": "The market's onchain condition ID (hex)."
          },
          "created_time": {
            "type": "string",
            "description": "ISO 8601 UTC timestamp."
          },
          "total_volume_usd": {
            "type": "number",
            "description": "Total traded volume in USD, as the supplier reports it."
          }
        }
      }
    }
  },
  "description": "One page of Opinion markets."
}