prediction_market_top_holders
shallowio.github.nansen-ai/nansen-mcp · Verify this server
Largest current holders for a Polymarket market. **Key fields:** - Positions are share balances, not USD notional. - `Position Value USD` is current marked value, not payout at resolution. - `Side Held` is the share side currently held. **Pitfalls:** - The visible holder table is the source of truth for holder-side concentration — do not infer risk, max loss, or potential profit unless the tool output explicitly provides it. - Output summary is based only on shown rows, not the entire holder table. - Large visible positions or labels do not by themselves identify smart money unless Nansen smart-money-labelled data supports it. **Prerequisites:** If `marketId` is unknown, call `prediction_market_lookup` first.
1 trials · measured 8 days ago
prediction_market_top_holders 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.
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