Polymarket Python SDK: Pricing, Features and Trading Checks

Prediction market developer SDK

The Polymarket Python SDK, published as polymarket-client, gives developers typed access to Polymarket data, account functions and order workflows. It is a prediction-market integration, not a prop trading or MetaTrader tool.

This profile describes vendor documentation, not hands-on testing or approval by any trading firm.

Vendor-source profile · Sources read 18 October 2026 · No rating assigned

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Pricing and billing

The published Python SDK guide shows installation through uv, pip or poetry but no SDK tariff. Polymarket trading fees, network costs or account terms are not priced in this source.

polymarket-client

See vendor pricing / package use

No SDK tariff in published guide

Public data clients and secure account clients

No numeric SDK price or Polymarket fee schedule is established by the published Python guide. Source: official pricing.

Prediction-market access can be restricted by jurisdiction. Automated orders can lose funds. Treat private keys as account control credentials.

Who Polymarket Python SDK suits

Consider it for prediction-market software

Python developers building research tools, account services or automated workflows can use one SDK for discovery, realtime data and secure operations.

Keep it separate from prop accounts

This SDK does not connect to prop firm evaluations or MetaTrader. It is for Polymarket integrations and has its own legal, wallet and market risks.

Polymarket Python SDK features

Capabilities below come from the linked official material. Availability can depend on plan, connection or account permissions.

Public and secure clients: Public clients read available data. Secure clients add trading and account access using a signer.
Async and sync interfaces: Both client types offer async and sync forms; realtime subscriptions require async clients.
Paginators: List methods share an interface for page-by-page scans, item iteration and opaque resume cursors.
Typed models and errors: The package exports typed objects, identifier types and a PolymarketError hierarchy, including rate-limit and input errors.
DataFrame export: Optional extras support pandas, Polars and Apache Arrow conversions with explicit limits.

Platforms and market access

Developers install polymarket-client and connect to Polymarket services. Secure examples use a private key from an environment variable; wallet setup and authentication need separate documentation.

PythonuvpippoetryJupyter

Check platform and connection requirements ↗

Prediction-market developer checks

Check the exact account, data access and operating rules before using this tool with live trading.

Protect private keys. Store keys outside source code and use the minimum access needed. Do not paste them into notebooks or support chats.
Confirm eligibility. Check whether Polymarket access and trading are allowed for your location and account.
Handle API limits. Build retries, backoff and user-input validation around rate-limit and request errors.
Use read-only access first. Test discovery with public clients before enabling secure account or order functions.

Compare tools before choosing

For more tools, browse the trading tools directory.

Polymarket Python SDK questions

What package is installed?

The official guide installs polymarket-client using uv, pip or poetry.

Can it stream realtime data?

Yes, through AsyncPublicClient or AsyncSecureClient. The synchronous clients do not implement subscribe().

Can it place orders?

Secure clients provide trading and account access after signer setup. Read the wallet and order documentation before live use.

Is it connected to prop trading?

No. It is a Polymarket prediction-market SDK and should not be treated as a prop firm, forex or futures trading tool.

Sources and disclosure

Source record: 18 October 2026. Vendor documentation supports product claims, not independent performance validation. Based on official sources read on 18 October 2026. No hands-on performance results, review rating or firm approval is claimed. No product rating or hands-on testing is claimed.

Polymarket Python SDK official documentation · Read 2026-10-18