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srikanthbellary

Polymarket Auto-Trader

by srikanthbellary · GitHub ↗ · v1.0.1
cross-platform ⚠ suspicious
2724
Downloads
10
Stars
16
Active Installs
2
Versions
Install in OpenClaw
/install polymarket-auto-trader
Description
Autonomous Polymarket prediction market trading agent. Scans markets, evaluates probabilities with LLM, sizes positions with Kelly criterion, and executes trades via CLOB API. Use when user wants to trade on Polymarket, set up automated prediction market trading, or build a trading bot. Supports cron-based autonomous operation, P&L tracking, and budget management.
Usage Guidance
This package appears to do what it says (an autonomous Polymarket trader), but it requires your wallet private key — which if leaked or misused will allow theft of funds. Before installing or running: 1) Create and use a dedicated, funded-with-minimum wallet (do not use your main wallet). 2) Review the contract addresses in references/contract-addresses.md to confirm they are legitimate. 3) Consider alternatives to storing the raw PRIVATE_KEY in plaintext (use a hardware signer or a secure key manager if possible). 4) Test on very small amounts ($5–$10) and monitor cron logs and P&L outputs closely. 5) Understand and accept the risk of approving MAX_UINT allowances (these grant broad spending rights to the contracts). 6) Verify the py-clob-client and web3 package versions and source (PyPI) and inspect create_or_derive_api_creds behavior if you care where derived credentials are stored. 7) If you want less exposure, modify scripts to use a signing service or ephemeral keys and to avoid storing private keys on disk. If you are not comfortable with these steps or with running code that can move funds, do not install or run this skill.
Capability Analysis
Type: OpenClaw Skill Name: polymarket-auto-trader Version: 1.0.1 The skill bundle sets up an autonomous trading bot that handles a blockchain private key and grants unlimited token spending approvals (MAX_UINT) to Polymarket contracts. While these high-risk actions (storing a private key in `.env`, broad token approvals, cron-based persistence, external LLM API calls) are transparently disclosed in `SKILL.md` and appear to be for the stated purpose of autonomous trading with legitimate services (Polymarket, Anthropic), the inherent vulnerabilities are significant. There is no evidence of intentional malicious behavior like unauthorized data exfiltration or covert backdoors, but the critical nature of the private key handling and unlimited approvals warrants a 'suspicious' classification due to the high potential for financial loss if the environment is compromised or the target contracts have vulnerabilities.
Capability Assessment
Purpose & Capability
The skill claims to scan markets, ask an LLM for probability estimates, size positions, and place orders via the Polymarket CLOB API. The required env vars (PRIVATE_KEY for signing trades and LLM_API_KEY for Anthropic calls) and included scripts directly implement that functionality. The only minor mismatch: registry metadata marks LLM_API_KEY as the primary credential even though PRIVATE_KEY is the highest-privilege secret for trading.
Instruction Scope
Runtime instructions are focused on trading: set up a non-US VPS, install Python packages, store PRIVATE_KEY and LLM_API_KEY in /opt/trader/app/.env, run approval and trading scripts, and set a cron job. The instructions explicitly tell you to store the private key on disk and to approve MAX_UINT for several contracts (standard for DeFi but high-risk). There are no hidden network endpoints beyond Polymarket, Gamma API, Anthropic, and the Polygon RPC endpoints.
Install Mechanism
No remote arbitrary downloads are used. setup_vps.sh installs pinned Python packages from PyPI (py-clob-client, web3, python-dotenv, requests). The included setup script and pinned versions make the install path transparent and traceable.
Credentials
Only two environment variables are required (PRIVATE_KEY and LLM_API_KEY), which is proportionate to a trading bot. However, PRIVATE_KEY provides full control of the wallet and must be treated as a highly privileged secret; the skill also designates the LLM key as the primary credential in metadata, which is a minor inconsistency but not malicious.
Persistence & Privilege
The skill is not force-enabled (always:false) and does not request modifications to other skills or global agent settings. It is designed to be run persistently via user-configured cron on a VPS (normal for trading bots).
How to Use
  1. Make sure OpenClaw is installed (local or Docker)
  2. Run the install command in chat: /install polymarket-auto-trader
  3. After installation, invoke the skill by name or use /polymarket-auto-trader
  4. Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.1
Fix: added required env vars (PRIVATE_KEY, LLM_API_KEY) to metadata, pinned dependency versions, added security considerations section and homepage URL
v1.0.0
Initial release: autonomous prediction market trading with LLM evaluation, Kelly sizing, and CLOB API execution
Metadata
Slug polymarket-auto-trader
Version 1.0.1
License
All-time Installs 19
Active Installs 16
Total Versions 2
Frequently Asked Questions

What is Polymarket Auto-Trader?

Autonomous Polymarket prediction market trading agent. Scans markets, evaluates probabilities with LLM, sizes positions with Kelly criterion, and executes trades via CLOB API. Use when user wants to trade on Polymarket, set up automated prediction market trading, or build a trading bot. Supports cron-based autonomous operation, P&L tracking, and budget management. It is an AI Agent Skill for Claude Code / OpenClaw, with 2724 downloads so far.

How do I install Polymarket Auto-Trader?

Run "/install polymarket-auto-trader" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.

Is Polymarket Auto-Trader free?

Yes, Polymarket Auto-Trader is completely free (open-source). You can download, install and use it at no cost.

Which platforms does Polymarket Auto-Trader support?

Polymarket Auto-Trader is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).

Who created Polymarket Auto-Trader?

It is built and maintained by srikanthbellary (@srikanthbellary); the current version is v1.0.1.

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