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Tereno Prediction Market Evidence
x402
Tereno Prediction Market Evidence is a paid API for AI agents from www.tereno.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-13).
Returns sourced, machine-readable evidence supporting or contradicting a prediction market proposition, with onchain state verification and deterministic provenance receipts.
Price / call$0.05
Success—
StatusUnknown
How this service works
Returns current, sourced and machine-readable evidence supporting or contradicting a prediction-market proposition before placing trades. Verifies onchain state, resolution rules, and primary provenance with deterministic receipts.
Output
A structured, machine-readable response containing sourced evidence (supporting and contradicting) for the prediction market proposition, verified onchain state, extracted resolution rules, primary provenance references, and deterministic receipts for auditability.
Example use cases
Pre-trade due diligence on Polymarket
“I'm about to trade on Polymarket for the question 'Will SpaceX complete a crewed Mars mission before 2030?' — can you fetch verifiable evidence and check the resolution rules before I put money in?”
Auditing a Kalshi market proposition
“I want to audit the Kalshi market asking whether US CPI inflation will exceed 3% in June 2025 — can you pull current sourced evidence supporting and contradicting that proposition, including the resolution criteria?”
Onchain state verification for Omen market
“Check the onchain state and primary provenance for this Omen market — https://omen.eth.link/market/xyz — I need deterministic receipts confirming what the current evidence says about whether the proposition resolves YES.”
Technical details
Endpoint
POSThttps://www.tereno.xyz/api/v1/capabilities/prediction.evidence/invoke?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an agent needs to make an informed, evidence-backed decision before placing a prediction market trade, specifically when verifiable sourcing, onchain state confirmation, and deterministic provenance receipts are required. Prefer over generic web search when machine-readable structured output and resolution rule extraction are needed, or when trading on Polymarket, Kalshi, or Omen.
Side effects
- Market URL is inaccessible or returns no resolution rules — evidence extraction may be incomplete
- Onchain state query fails due to network congestion or RPC unavailability
- Unsupported market platform identifier causes lookup failure
- Question is too vague or too short (under 5 characters) to retrieve meaningful evidence
- Payment failure or insufficient USDC balance prevents invocation
- Primary sources are paywalled or unavailable, reducing provenance quality
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| market | string | Market platform identifier (e.g. 'polymarket', 'omen', 'kalshi'). Defaults to 'polymarket'. |
| context | object | Optional contextual metadata from the agent. |
| question | string | Prediction market question or proposition to audit with verifiable evidence. |
| marketUrl | string | Optional URL to the market page for resolution rules extraction. |
Tags
x402
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