Execution math for prediction markets: fees, rewards, fill/slippage and a go/no-go verdict.
Connect Remote server
claude mcp add --transport http pricemyfill https://api.pricemyfill.workers.dev/mcp
{
"mcpServers": {
"pricemyfill": {
"url": "https://api.pricemyfill.workers.dev/mcp"
}
}
}
{
"servers": {
"pricemyfill": {
"type": "http",
"url": "https://api.pricemyfill.workers.dev/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://api.pricemyfill.workers.dev/mcp
Tools 4 found in our last check
pm_market_briefThe full report: exact fill and slippage for your size, total cost including fees and builder fee, the breakeven probability you need to believe, reward eligibility and payout estimate, net edge against your own probability estimate, and a verdict (operate / operate_partial / do…
pm_platform_feeExact taker fee for a Polymarket trade: shares x feeRate x p(1-p). Makers pay nothing on the global exchange. Also returns maker rebate, optional builder fee and the fee as a percentage of notional.
pm_reward_eligibilityWhether a resting order qualifies for a market's daily liquidity rewards (minimum size, maximum distance to midpoint), exactly what is missing if it does not, and an estimate of the daily payout.
pm_order_book_fillWalks the order book level by level: VWAP, slippage in basis points against mid, what fills and what does not. Book arithmetic, not a fill-probability model.
Details
| Endpoint | https://api.pricemyfill.workers.dev/mcp (Streamable HTTP) |
| First published | 12 Nov 2026 |
| Last updated | 12 Nov 2026 |
| Registry name | dev.workers.pricemyfill.api/pricemyfill |
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