prediction_market_ohlcv
shallowio.github.nansen-ai/nansen-mcp · Verify this server
Historical odds/volume candles for a Polymarket market. **When to use:** - Current odds / implied probability, price history, and recent probability changes on a specific market. **Key fields:** - `Close` is the share price for the displayed outcome side. - In binary markets, Yes and No shares are complementary and sum to about $1. **Pitfalls:** - Each response is for one exact `marketId` — do not mix dates or prices across different markets. - If no candles are returned for the requested window, say so directly — do not estimate. **Prerequisites:** If `marketId` is unknown, call `prediction_market_lookup` first.
1 trials · measured 8 days ago
prediction_market_ohlcv scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against io.github.nansen-ai/nansen-mcp, measured 25 Aug 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote
- Credential class
- self-provisionable
- Category
- Developer infrastructure
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-08-25 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
Embed this score
Available for every tool, scored or not — not a verification perk. Always links back to this page.
[](https://vouch.tools/tools/a50cffd5-8a2a-4316-a782-7caeb87d8463)