---
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publisher: "PredictionToolkit"
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Find your toolkit

# Polymarket APIs and data providers | Page 4

Choose an API by the information your application needs and how it must arrive. Official endpoints and third-party providers can serve different roles in market discovery, prices, order books, wallet research and historical analysis.

How to choose data apis

## Start with the entity you need

Gamma is the starting point for market metadata, CLOB for an outcome-token book, and Data API for public wallet activity or rankings. A provider’s broad market coverage does not mean every route returns the same records or identifiers.

## Compare the exact route

-   Keep event IDs, Gamma market IDs, condition IDs and outcome-token IDs distinct when joining responses.
-   Read the response envelope and pagination scheme: Gamma keyset responses use markets or events; Data v2 paged reads use data and pagination.
-   Check dataset coverage, history, stream support, rate limits and output format for the endpoint you will actually call.
-   Compare authentication and provider access terms separately from the choice of client library.

Public data reads and authenticated account actions need different handling. A route for reading a book is not permission to submit a signed order. Establish that boundary before selecting an SDK, stream or assistant connection.

[Polymarket API endpoints: Gamma, CLOB and Data](<https://predictiontoolkit.com/guides/polymarket-api-endpoints/>) 

Match services and identifiers to the request.

[Polymarket API key and authentication](<https://predictiontoolkit.com/guides/polymarket-api-key/>) 

Understand public reads and private credentials.

[Polymarket SDKs and Developer Libraries](<https://predictiontoolkit.com/polymarket-sdks/>) 

Choose a compatible client library.

[Polymarket Streaming APIs and WebSockets](<https://predictiontoolkit.com/polymarket-streaming-data/>) 

Compare ongoing data delivery.

[Polymarket Historical Data and Archives](<https://predictiontoolkit.com/polymarket-historical-data/>) 

Find reusable historical coverage.

[Polymarket MCP Servers](<https://predictiontoolkit.com/polymarket-mcp-servers/>) 

Inspect assistant-facing tool access.

[All categories](<https://predictiontoolkit.com/categories/>) 

**88** tools · 37–48 shown

Sort

![FactsAI official research API presentation](<https://predictiontoolkit.com/assets/cover-factsai-11fc3b2f7654d4c3-400.webp>)

![FactsAI logo](<https://predictiontoolkit.com/assets/icon-logo-factsai-20261026-192-d77ff57cd3f1d963.webp>)[FactsAI](<https://predictiontoolkit.com/tools/factsai/>) 

Data API**3.5**Editorial

A prepaid research API for cited factual answers, with source checking left to the research workflow.

-   Access API

![FinFeedAPI products and integration entry points](<https://predictiontoolkit.com/assets/cover-finfeedapi-056507ba5f19f3d3-400.webp>)

![FinFeedAPI Prediction Markets logo](<https://predictiontoolkit.com/assets/logo-finfeedapi-0253cb4bb9be.svg>)[FinFeedAPI Prediction Markets](<https://predictiontoolkit.com/tools/finfeedapi/>) 

Data API**3.5**Editorial

A normalized prediction-market data service for dashboards, historical replay and AI clients.

-   Access API · MCP

![Futuur market asking whether Luiz Inácio Lula da Silva will win Brazil’s 2026 presidential election](<https://predictiontoolkit.com/assets/cover-futuur-41343be86042-400.webp>)

![Futuur logo](<https://predictiontoolkit.com/assets/logo-futuur-db6d87d96d0a.svg>)[Futuur](<https://predictiontoolkit.com/tools/futuur/>) 

Platform**3.5**Editorial

Explore event questions with separate OOM practice and supported real-money trading modes.

-   Access Web · API

![Unusual Whales Predictions Smart Money rankings with score, win rate, PnL and category filters; some identities are gated](<https://predictiontoolkit.com/assets/cover-hashdive-fea1c099d2a6-400.webp>)

![Hashdive / Unusual Whales Predictions logo](<https://predictiontoolkit.com/assets/logo-hashdive-8502422a52e6.webp>)[Hashdive / Unusual Whales Predictions](<https://predictiontoolkit.com/tools/hashdive/>) 

Analytics**3.5**Editorial

The migrated Hashdive research workspace for public wallets, market screening and notable Polymarket activity.

-   Access Web · API

![Headline Arena overview of its forecast markets.](<https://predictiontoolkit.com/assets/cover-headline-arena-747b59f542db-400.webp>)

![Headline Arena logo](<https://predictiontoolkit.com/assets/logo-headline-arena-e94901832c73.webp>)[Headline Arena](<https://predictiontoolkit.com/tools/headline-arena/>) 

Research tool**3.5**Editorial

AI forecast research with public reasoning, revision histories, resolved scorecards and paid API tools.

-   Access Web · API

![Kairos Trade institutional API transports and normalized responses](<https://predictiontoolkit.com/assets/cover-tool-kairos-trade-672c8eaf7284-400.webp>)

![Kairos Trade logo](<https://predictiontoolkit.com/assets/logo-tool-kairos-trade-36ddfd88e11d.webp>)[Kairos Trade](<https://predictiontoolkit.com/tools/kairos-trade/>) 

Trading terminal**3.5**Editorial

Use an aggregated terminal or scoped enterprise API for data, orders, positions and trader intelligence.

-   Access Web · API

![LazyEdge official sports terminal and API presentation](<https://predictiontoolkit.com/assets/cover-lazyedge-f96ce4b7ee09168f-400.webp>)

![LazyEdge logo](<https://predictiontoolkit.com/assets/icon-logo-lazyedge-20261026-180-a615ffacfaa11663.webp>)[LazyEdge](<https://predictiontoolkit.com/tools/lazyedge/>) 

Research tool**3.5**Editorial

A model-versus-market sports terminal, with higher-tier API, webhook routing and WebSocket access.

-   Access Web · API

![Mesh official data-platform presentation with a transcript research example.](<https://predictiontoolkit.com/assets/cover-mesh-2c9be9ed43dc3785-400.webp>)

![Mesh logo](<https://predictiontoolkit.com/assets/icon-logo-mesh-20261026-192-90bdca06a7b8e3ef.webp>)[Mesh](<https://predictiontoolkit.com/tools/mesh/>) 

Data API**3.5**Editorial

Search event transcripts with speaker and timestamp context through a web platform and API.

-   Access Web · API

![METAR.ws WebSocket METAR API introduction and connection example](<https://predictiontoolkit.com/assets/cover-metar-ws-53d6bf66909e-400.webp>)

![METAR.ws logo](<https://predictiontoolkit.com/assets/logo-metar-ws-09a338a2174f.webp>)[METAR.ws](<https://predictiontoolkit.com/tools/metar-ws/>) 

Data feed**3.5**Editorial

Stream airport reports and station-level model signals for weather research without building a GRIB parsing pipeline.

-   Access API

![Myriad prediction-market cards with probabilities and category navigation](<https://predictiontoolkit.com/assets/cover-myriad-ab2beaec00325e03-400.webp>)

![Myriad logo](<https://predictiontoolkit.com/assets/logo-myriad-4bb7eacb1415.webp>)[Myriad](<https://predictiontoolkit.com/tools/myriad/>) 

Platform**3.5**Editorial

Trade outcome shares after distinguishing the market model, order behavior and applicable fee schedule.

-   Access Web · API · CLI

![Octagon product overview.](<https://predictiontoolkit.com/assets/cover-octagon-ai-388374c0df42-400.webp>)

![Octagon logo](<https://predictiontoolkit.com/assets/logo-octagon-ai-af245bc11056.webp>)[Octagon](<https://predictiontoolkit.com/tools/octagon-ai/>) 

Research tool**3.5**Editorial

Source-linked event reports, model-price comparisons and developer access through API, MCP and CLI.

-   Access Web · API · CLI · MCP

![OddsPipe cross-venue market and spread API overview](<https://predictiontoolkit.com/assets/cover-oddspipe-6bb365ac9ee68c38-400.webp>)

![OddsPipe logo](<https://predictiontoolkit.com/assets/logo-tool-oddspipe-3968bb05045f.svg>)[OddsPipe](<https://predictiontoolkit.com/tools/oddspipe/>) 

Data API**3.5**Editorial

Find paired contracts, filter match confidence and investigate cross-venue price differences through REST or Python.

-   Access API

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