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Prediction Markets Trading Bot Toolkits: what ships, what is planned, where it stops
Last checked 2026-09-08
Prediction-Markets-Trading-Bot-Toolkits is a Rust project from HarrierOnChain with one execution core, one risk layer and ten strategies. Copy trading is the one the README calls production-ready; the other nine are described as in development on the same engine.
Twenty venues are mapped to the adapter interface, each with its own repo, but the README states that those per-venue repos hold metadata only and Polymarket is the reference implementation with all the trading code.
What it does
Prebuilt binaries for Linux, macOS and Windows unpack to a polymarket-toolkits executable with an interactive TUI. Copy config.yaml.example, then run copy-trading; enable_trading is false by default so the full execution path runs without placing orders.
The engine is a Polymarket CLOB client, an order executor with EIP-712 signing, a risk guard, a position monitor and store, a market cache and Polygon log ingestion for on-chain whale signals.
- Copy Trading: multi-wallet, FAK and GTD orders, per-wallet caps, circuit breaker
- Safety: circuit breaker, depth guard, dry run, trade floor
- Performance claims in the README: under 1 ms per event, under 100 ms order execution, about 50 MB memory
- Rate limit default 25 requests per 10 seconds
Strategy
Copy trading mirrors fills from wallets you choose at a scale you set, with a recommended copy_percentage of 5 to 10% until you trust the signal. The circuit breaker halts on N consecutive large trades inside a window or when book depth falls below a minimum.
The nine in-development strategies are short-window BTC arbitrage, cross-market arbitrage across Polymarket, Kalshi and PredictIt, directional arbitrage, spread farming, sports execution, a resolution sniper for contracts at 95 cents or more, order-book imbalance, market making and an on-chain whale signal. The README asks you to check the source for the current state of each before running it with real capital.
Setup and requirements
No Rust toolchain is needed for the binary; cargo install from the repo URL works if you prefer to build. Credentials go in config.yaml, public settings in config.json. A Polygon wallet funded for Polymarket is required for live trading.
Activity and maintenance
434 stars and 127 forks as of 2026-09-08. Created 2025-09-29, last push 2026-09-07, 1 open issue. MIT licensed with a LICENSE file present; Rust with a CI workflow. The homepage is pnlpro.fit, which the README describes as a live PnL page.
The README says the hosted managed service ran as a paper-trading beta, never custodied real money, and is closed; support runs through a Telegram handle.
Where it falls short
Only one of ten strategies is called production-ready by its own README, and the Kalshi and PredictIt legs of cross-market arbitrage are among the nine in development. The venue badge count is not the same thing as venue support.
Copy trading depends on the wallets you pick. The bot supplies execution and caps, not the selection.
Who should use it
A Polymarket copy trader who wants a compiled, low-overhead binary with a dry-run default and is comfortable reading Rust when a strategy card says in development.
Not for Kalshi today.
Questions about Prediction Markets Trading Bot Toolkits
Is Prediction Markets Trading Bot Toolkits free?
Yes, MIT licensed with prebuilt binaries. The managed service is closed.
Does it support Kalshi?
Kalshi appears in the venue table and in the cross-market arbitrage strategy, but the README says only Polymarket has the trading code and only copy trading is production-ready.
Is it safe to run?
It ships with enable_trading false, a circuit breaker, a depth guard and a trade floor. The README still tells you to run a full session in dry run first.
Is HarrierOnChain's toolkit legit?
It is a real, actively pushed MIT repo with 434 stars and CI as of 2026-09-08. Its README says star and fork counts are live badges and it publishes no P&L claims.
Bots die in execution. Terminals are execution.
Wanted a bot for speed and cross-venue vision? The free Kairos terminal trades Kalshi, Polymarket and Predict.fun from one book, no keys to manage.