Tool detail

Nansen · Top holders in prediction market

Returns the largest holders of a given prediction-market outcome or position.

Categories: Prediction markets, Trading signals

Use when

find the biggest holders of a prediction-market outcome
see position concentration for a prediction market

Not for

not per-wallet PnL - use the pnl-by-address endpoint for that

Inputs

inputs undocumented

Inputs undocumented: mpp.dev lists no input schema; see the provider's API reference

Endpoint

Method: POST
URL: https://api.nansen.ai/api/v1/prediction-market/top-holders

Payment

Protocol: MPP
Listed price: 0.05 pathUSD per call on Tempo
Payment method: tempo
Network: tempo:mainnet
Asset: 0x20c000000000000000000000b9537d11c60e8b50

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: MPP directory
Record: nansen POST /api/v1/prediction-market/top-holders
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z