polymarket-mert-sniper

What This Skill Does

The polymarket-mert-sniper is a specialized automation skill for OpenClaw designed to execute high-conviction, near-expiry trades on Polymarket. Based on the strategy popularized by @mert, this agent performs automated surveillance of prediction markets that are approaching their resolution deadline. It monitors specific topics, calculates the odds skew (split), and evaluates whether the current market conditions meet your specific risk parameters.

By default, the skill scans for markets closing within two minutes with a minimum odds skew of 60/40. When an opportunity is identified, the agent calculates an optimal position size and executes the trade. It includes built-in safeguards such as maximum bet caps and a mandatory dry-run mode, ensuring that you can verify the agent's logic before committing actual USDC.

Installation

To install this skill, run the following command in your terminal: clawhub install openclaw/skills/skills/adlai88/polymarket-mert-sniper

Once installed, ensure you have set up your credentials by exporting the SIMMER_API_KEY (obtained from simmer.markets) and WALLET_PRIVATE_KEY for your Polymarket account. Configuration is managed via environment variables or a local config.json, allowing you to tune the SIMMER_MERT_MAX_BET, SIMMER_MERT_EXPIRY_MINS, and SIMMER_MERT_MIN_SPLIT to fit your risk tolerance.

Use Cases

This skill is perfect for traders who want to capitalize on late-stage market information without monitoring screens 24/7. Use it for:

• Arbitrage on last-minute prediction market shifts.
• Executing conviction bets on high-probability events (e.g., crypto price targets or election outcomes) just before settlement.
• Automating a disciplined, rules-based strategy to remove emotional decision-making from high-frequency prediction trading.

Example Prompts

1. "OpenClaw, run the mert-sniper in live mode for all Solana-related markets with a max bet of $25."
2. "Check my current open positions on Polymarket and tell me if any are near the expiry window."
3. "Configure the sniper to only target markets with at least an 80/20 split and a 1-minute expiry window."

Tips & Limitations

Always start with dry-runs. The agent uses real USDC, and market volatility can fluctuate rapidly; ensure your wallet is sufficiently funded before enabling --live. The strategy is specifically for Polymarket; it will not work with other prediction platforms. Remember that slippage can occur during high-traffic resolution periods, so set your max bets conservatively until you are comfortable with the execution patterns.