Simmer Copytrading
Mirror positions from successful Polymarket traders using the Simmer SDK.
When to Use This Skill
Use this skill when the user wants to:
- •Copytrade whale wallets on Polymarket
- •Check what positions a wallet holds
- •Follow specific trader addresses
- •Check their copytrading positions
Quick Commands
# Check account balance and positions python scripts/status.py # Detailed position list python scripts/status.py --positions
API Reference:
- •Base URL:
https://api.simmer.markets - •Auth:
Authorization: Bearer $SIMMER_API_KEY - •Portfolio:
GET /api/sdk/portfolio - •Positions:
GET /api/sdk/positions
Finding Whale Wallets
- •predicting.top — Leaderboard of top Polymarket traders with wallet addresses
- •alphawhale.trade — Tools for copying and tracking top performers
- •Polymarket Leaderboard — Official rankings (requires account)
Quick Start (Ad-Hoc Usage)
User provides wallet(s) directly in chat:
User: "Copytrade this wallet: 0x1234...abcd" User: "What positions does 0x5678...efgh have?" User: "Follow these whales: 0xaaa..., 0xbbb..."
→ Run with --wallets flag:
python copytrading_trader.py --wallets 0x1234...abcd python copytrading_trader.py --wallets 0xaaa...,0xbbb... --dry-run
This is the simplest way - no setup needed, just pass wallets directly.
Persistent Setup (Optional)
For automated recurring scans, wallets can be saved in environment:
| Setting | Environment Variable | Default |
|---|---|---|
| Target wallets | SIMMER_COPYTRADING_WALLETS | (none) |
| Top N positions | SIMMER_COPYTRADING_TOP_N | auto |
| Max per position | SIMMER_COPYTRADING_MAX_USD | 50 |
| Max trades/run | SIMMER_COPYTRADING_MAX_TRADES | 10 |
Top N auto-calculation (when not specified):
- •Balance < $50: Top 5 positions
- •Balance $50-200: Top 10 positions
- •Balance $200-500: Top 25 positions
- •Balance $500+: Top 50 positions
Polymarket Constraints:
- •Minimum 5 shares per order
- •SDK enforces $1.00 minimum position value (filters dust positions)
⚠️ Start Conservative: Begin with small amounts (
--max-usd 5-10) and--dry-runto understand how the skill behaves before scaling up.
How It Works
Each cycle the script:
- •Fetches positions from all target wallets via Simmer API
- •Combines using size-weighted aggregation (larger wallets = more influence)
- •Detects conflicts (one wallet long YES, another long NO) and skips those markets
- •Applies Top-N filtering to concentrate on highest-conviction positions
- •Auto-imports missing markets from Polymarket
- •Calculates rebalance trades to match target allocations
- •Executes trades via Simmer SDK (respects spending limits)
- •Reports results back to user
Running the Skill
Run a scan:
python copytrading_trader.py
Dry run (no actual trades):
python copytrading_trader.py --dry-run
Check positions only:
python copytrading_trader.py --positions
View current config:
python copytrading_trader.py --config
Override wallets for one run:
python copytrading_trader.py --wallets 0x123...,0x456...
Full rebalance mode (includes sells):
python copytrading_trader.py --rebalance
Sell when whales exit positions:
python copytrading_trader.py --whale-exits
Reporting Results
After each run, message the user with:
- •Current configuration (wallets, Top N, max position)
- •Number of wallets fetched and total positions found
- •Markets skipped due to conflicts
- •Trades executed (or skipped with reason)
- •Current portfolio positions
Example output to share:
🐋 Copytrading Scan Complete Configuration: • Following 2 wallets • Top 10 positions, max $50 each • Balance: $250.00 USDC Fetched positions: • 0x1234...abcd: 15 positions • 0x5678...efgh: 22 positions • Combined: 28 unique markets • Conflicts skipped: 2 Top 10 by allocation: 1. "Will BTC hit $100k?" - 18.5% → BUY YES 2. "Trump pardons X?" - 12.3% → BUY NO 3. "Fed rate cut Jan?" - 9.8% → Already held ... Trades executed: 4 buys ($180 total) • Bought 45 YES shares on "Will BTC hit $100k?" @ $0.82 • Bought 120 NO shares on "Trump pardons X?" @ $0.15 ... Next scan in 4 hours.
Example Conversations
User: "Copytrade 0x1234...abcd"
→ Run: python copytrading_trader.py --wallets 0x1234...abcd
→ Report what positions that wallet has and what trades would execute
User: "What is 0x5678...efgh holding?"
→ Run: python copytrading_trader.py --wallets 0x5678...efgh --dry-run
→ Show their positions without trading
User: "Follow these wallets: 0xaaa..., 0xbbb..., 0xccc..."
→ Run: python copytrading_trader.py --wallets 0xaaa...,0xbbb...,0xccc...
→ Aggregate positions across all wallets, report results
User: "Copytrade this whale but only top 5 positions"
→ Run: python copytrading_trader.py --wallets 0x... --top-n 5
User: "How are my positions doing?"
→ Run: python copytrading_trader.py --positions
→ Show current Polymarket positions with P&L
User: "Show copytrading config"
→ Run: python copytrading_trader.py --config
→ Display current settings
User: "Sell positions that whales have exited"
→ Run: python copytrading_trader.py --whale-exits
→ Compares your positions to whales, sells any they've closed
User: "Do a full rebalance to match the whales"
→ Run: python copytrading_trader.py --rebalance
→ Includes both buys AND sells to match whale allocations
Finding Good Wallets to Follow
Common approaches:
- •Leaderboard tracking: Check Polymarket leaderboards for consistent performers
- •Whale watchers: Follow known profitable traders on social media
- •Specific strategies: Follow wallets known for weather, politics, or crypto trades
The skill works best when:
- •Following 2-5 wallets for diversification
- •Wallets have similar conviction (don't mix degen with conservative)
- •Wallets trade markets available on Polymarket
Troubleshooting
"Order too small" / "below minimum (5)"
- •Polymarket requires minimum 5 shares per order
- •Increase
--max-usdor reduce--top-nto concentrate into fewer positions
"No wallets specified"
- •Provide wallet addresses in your message, e.g., "copytrade 0x1234..."
- •Or set SIMMER_COPYTRADING_WALLETS environment variable for recurring scans
"Agent has no USDC balance"
- •Need USDC in your Polymarket wallet
- •Check wallet is linked at simmer.markets/dashboard
"Conflict skipped"
- •Wallets disagree on this market (one long YES, other long NO)
- •Markets with net position < 10% are skipped
"Insufficient balance"
- •Not enough USDC for all trades
- •Reduce SIMMER_COPYTRADING_TOP_N or SIMMER_COPYTRADING_MAX_USD
"Market could not be imported"
- •Some markets may not be importable (resolved, private, etc.)
- •These are skipped automatically