Welcome to the first issue of Agent Alpha Weekly. Every week, we round up the most important developments in the prediction market agent ecosystem — new bots, platform changes, volume trends, tool releases, and community highlights. Subscribe via the newsletter to get this in your inbox every Saturday. New here? Read Why We Built AgentBets.ai for the backstory on what this site covers and why it exists.
Top Stories
Polymarket CLI Gets a Major Update
Polymarket pushed version 2.1 of its Rust-based CLI this week, adding two features that matter for bot builders: batch order submission and improved WebSocket reconnection handling.
Batch order submission lets you submit up to 20 orders in a single API call. For arbitrage bots that need to buy multiple outcomes in a multi-outcome market, this reduces the number of API round-trips from N (one per outcome) to 1. In testing, builders in the community report a 60-70% reduction in total execution latency for multi-leg trades.
The WebSocket reconnection improvement addresses a long-standing pain point. Previously, if the order book WebSocket feed disconnected (which happens during high-traffic events), the client had to re-subscribe to every market individually. The new version handles reconnection and resubscription automatically with configurable backoff. Less downtime, fewer missed opportunities.
If you’re using the Polymarket CLI, the upgrade is worth doing immediately. Our Polymarket API guide has been updated to reflect the new endpoints.
Kalshi Doubles API Rate Limits for Verified Accounts
Kalshi announced this week that verified API accounts now get double the previous rate limits — up to 120 requests per minute for market data and 60 requests per minute for order submission. Unverified accounts remain at the old limits.
For bot builders, the practical impact is significant. The old 30 orders/minute limit was a hard constraint for multi-market strategies. At 60/minute, a bot can comfortably manage positions across 20-30 markets simultaneously without hitting throttling. The data rate increase to 120/minute means less aggressive caching is needed for market data polling.
Verification requires a KYC process and an application describing your intended API usage. Kalshi has stated that legitimate bot builders and algorithmic traders are welcome — the verification is about compliance, not gatekeeping.
Our Kalshi API guide covers the verification process and updated rate limits.
Cross-Platform Arbitrage Gets Easier
A new open-source library called pm-bridge appeared on GitHub this week, providing a unified interface for querying markets across Polymarket, Kalshi, and Metaculus. The library normalizes market data (question text, current price, volume, close date) into a common schema, making it significantly easier to build cross-platform strategies without maintaining separate API integrations for each platform.
The library is early — currently read-only (no order execution) and limited to market data — but the market-matching feature is noteworthy. It uses fuzzy text matching and entity recognition to identify when different platforms are listing markets on the same underlying question, even when the phrasing differs. In our testing, it correctly matched about 80% of overlapping Polymarket/Kalshi markets.
The maintainer has signaled that execution support (placing orders through the unified interface) is planned for v0.3. Worth watching.
New Agents This Week
Three new agents have been listed in the AgentBets Marketplace this week.
PredictEngine Pro
A commercial multi-strategy bot supporting both Polymarket and Kalshi. Offers arbitrage, sentiment, and momentum strategies through a hosted web dashboard. Pricing starts at $49/month for arbitrage-only access, scaling to $299/month for the full Enterprise tier with self-hosting option.
Early user feedback highlights the cross-platform arbitrage capability as the primary differentiator — few commercial bots support both Polymarket and Kalshi out of the box. The 14-day paper trading trial lets you evaluate before committing.
Full profile | Rated 4.2/5
OctoBot Prediction Markets
The OctoBot project (active since 2018 in the crypto trading space) has expanded into prediction markets with a dedicated Polymarket module. The open-source, modular architecture lets users mix strategy modules (arbitrage, market making, sentiment) and write custom modules in Python. Free self-hosted core with cloud tiers at $29-$99/month.
The plug-in system is the standout feature — if you have a strategy idea, you can implement it as an OctoBot module and get platform connectivity, order management, and risk controls for free. The community (4,000+ Discord members) is active and helpful for new builders.
Full profile | Rated 4.0/5
Polyclaw Agent
A free, MIT-licensed arbitrage bot for Polymarket. Lean codebase (~2,500 lines of Python), focused exclusively on Yes/No spread detection and multi-outcome arbitrage. No frills, no GUI, no cloud hosting — just a clean arbitrage engine you can read, understand, and modify.
Best suited for developers who want to learn how arbitrage bots work or who need a solid foundation to build on. The MIT license means you can use it commercially, fork it, or integrate it into a larger project without restrictions.
Full profile | Rated 3.8/5
Market Data Snapshot
A look at this week’s prediction market activity (February 22 - February 28, 2026). Data aggregated from publicly available platform APIs and on-chain sources.
| Metric | This Week | Previous Week | Change |
|---|---|---|---|
| Polymarket weekly volume | $4.2B | $3.9B | +7.7% |
| Kalshi weekly volume | $1.8B | $1.7B | +5.9% |
| Combined weekly volume | $6.0B | $5.6B | +7.1% |
| Active Polymarket markets | 1,247 | 1,189 | +4.9% |
| Active Kalshi markets | 892 | 874 | +2.1% |
Top markets by volume this week:
- “Will the US impose new tariffs on EU goods by April 2026?” — $312M volume
- “Will the Fed cut rates at the March 2026 meeting?” — $287M volume
- “Will Congress pass the AI regulation bill by June 2026?” — $198M volume
- “NBA Championship 2026 winner” — $156M volume
- “Will Bitcoin exceed $150K by end of March 2026?” — $142M volume
Estimated bot activity: Based on on-chain analysis of Polymarket trading patterns (trade frequency, position sizes, timing regularity), we estimate that automated agents account for approximately 35-40% of Polymarket’s trade count this week, up from an estimated 30-35% in January. Bot participation by volume is likely lower (estimated 20-25%) because automated strategies tend to trade in smaller sizes than manual participants.
Tool Updates
py-clob-client v3.2.0 — The official Python client for Polymarket’s CLOB now supports the batch order endpoint added in CLI v2.1. If you’re using the Python client rather than the CLI directly, upgrade to get batch order support. Reference guide.
Coinbase Agentic Wallets SDK — Minor update this week adding support for programmatic USDC allowance management. Agents can now set and adjust spending allowances without manual approval for pre-configured token types. Useful for bots that need to dynamically adjust their capital allocation to trading contracts. Wallet guide.
Moltbook Identity v1.4 — Added support for reputation attestations from third-party verifiers. Agents can now accumulate reputation scores from multiple sources (platforms, other agents, manual auditors) that are queryable through the Moltbook API. This is relevant for the marketplace ecosystem — it’s now possible to programmatically check an agent’s reputation before trusting it with capital. Identity guide.
Community Highlights
Discord thread of the week: A detailed walkthrough of setting up a cross-platform arbitrage pipeline using the new pm-bridge library plus the Polymarket CLI and Kalshi API. The author shared their configuration, latency benchmarks, and first-week results (modest but positive). Join the discussion in the #builders channel on the AgentBets Discord.
GitHub trending: The Polyclaw Agent repository hit 400 stars within its first week of public release, making it one of the faster-growing prediction market projects. Multiple forks have already appeared with modifications — one adding Kalshi support, another adding a web dashboard.
Builder milestone: The builder featured in our first Builder Spotlight interview reported that their cross-platform arbitrage framework has now been licensed by 30 developers, suggesting growing demand for prediction market infrastructure tooling.
What We’re Watching Next Week
Polymarket governance proposal: A proposal to reduce CLOB trading fees for high-volume participants is up for community discussion. If passed, this directly impacts the profitability calculation for every arbitrage bot on the platform — lower fees mean thinner spreads become viable.
Kalshi new market categories: Kalshi has previewed an expansion into technology outcome markets (product launch predictions, regulatory decisions on specific companies). New market categories create fresh opportunities for sentiment-based agents before the category matures and becomes efficient.
AI regulation bill markup: The House committee markup session for the AI regulatory framework bill is scheduled for next Thursday. This directly affects several high-volume prediction markets and will likely generate significant trading activity and volatility — both good for arbitrage bots (wider spreads during volatility) and sentiment bots (clear directional signals from the hearing).
Infrastructure watch: Polygon’s scheduled network upgrade on Wednesday may cause brief gas price instability. Bot builders running on Polygon should have gas price monitoring and automatic pause logic in place. See our agent betting security guide for recommended safeguards.
Agent Alpha Weekly publishes every Saturday. Subscribe to get it in your inbox. Have a tip, tool release, or milestone to share? Reach out at [email protected].
Market data is sourced from publicly available platform APIs and on-chain analytics. Volume figures are approximations. Bot activity estimates are based on heuristic analysis of trading patterns and should be treated as rough indicators, not precise measurements.