mcp server
spoiler
Sealed prediction-market verdicts, graded in public across Polymarket and Kalshi. No auth required.
Description as published by the maintainer. Source
- version 1.0.0
- active
active — Registry entry last updated 2026-07-14.
What this server can do
12 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.
get_board- Read public Spoiler receipts, public meter counts, and public methodology summary.
get_receipt(id)- Read one public receipt by event id, slug, or commit hash prefix. Required: id.
lookup_market(query)- Search public receipts by market text. Required: query.
paid_board_snapshot- Get a board-wide snapshot of open calls and the public record, not one market. Price: 0.25 USDT per call, paid via x402 on X Layer.
paid_crypto_call_pack- Every open crypto call on the board, with public receipts. Price: 0.10 USDT per call, paid via x402 on X Layer.
paid_esports_call_pack- Every open esports call on the board, with public receipts. Price: 0.10 USDT per call, paid via x402 on X Layer.
paid_full_verdict(query)- One called market in full depth: side, edge, probability, timeline, and on-chain proof. Price: 1.00 USDT per call, paid via x402 on X Layer.
paid_receipt_verify(id)- Check one public receipt and its onchain proof. Price: 0.10 USDT per call, paid via x402 on X Layer.
paid_single_market_check(query)- Ask about any market: our call and edge if we have one, or why it was screened out. Price: 0.05 USDT per call, paid via x402 on X Layer.
paid_spoiler_metrics- Board-wide win rate, Brier and the graded record, by category. Price: 0.05 USDT per call, paid via x402 on X Layer.
paid_top_edges_now- The five strongest open calls across the whole board right now. Price: 0.10 USDT per call, paid via x402 on X Layer.
paid_venue_gaps- Compare current Kalshi and Polymarket prices ranked by gap. Price: 0.50 USDT per call, paid via x402 on X Layer.
Last successful function declaration observed on . Source: https://spoiler.bet/mcp. We list what the server declared; we do not call any of these functions.
Endpoint status observed on . Source: https://spoiler.bet/mcp.
Signals
These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.
| Signal | Value | What it measures | Window | Observed | Source |
|---|---|---|---|---|---|
| Latest published version | 1.0.0 | Latest version string the maintainer published to the registry. | as of fetch | Model Context Protocol | |
| Registry record last updated | 2026-07-14 | When the registry record was last updated by its maintainer. | point in time | Model Context Protocol | |
| First listed in the MCP Registry | 2026-07-14 | Date this server was first published to the official MCP Registry. Not a usage or quality measure. | point in time | Model Context Protocol | |
| mcp tools declared | 12 tools | Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. | as of probe | spoiler.bet | |
| mcp endpoint status | ok | The server listed 12 functions when asked. | as of probe | spoiler.bet |
Where to get it
This record as data
Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.
GET /api/v1/entries/mcp_server.json