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Parlay Builder publishes an MCP server — a small, read-only endpoint that an AI client can query directly. Add it once to Claude or ChatGPT and the assistant can pull tonight’s ranked prop board, how often a player has actually cleared a line, and the graded record of what the model has published, without you leaving the chat to look any of it up.
MCP is the Model Context Protocol, an open standard Anthropic published in 2024 for connecting AI assistants to outside data. A “connector” or “MCP server” is one such source. The client asks it questions in a fixed shape and it answers with structured data instead of a web page, which is what lets an assistant reason over the numbers rather than scrape them out of prose.
pb_top_props — The ranked prop board for a league and date, filtered the way you would filter it on the site — league, market, minimum sample, how far out the game is.
pb_player_hit_rate — One player, one market, one threshold, measured across five windows — last 3, last 5, last 10, this season and last season — each with the games behind it, plus trend, consistency and current streak.
pb_compare_props — Two to six props measured side by side on one window, so the comparison is like for like rather than three separate answers a reader has to line up.
pb_most_consistent — Board rows ordered by the measured consistency index — how little a player’s output has moved around its own average — on the same thresholds the chat uses.
pb_track_record — The forward record: every prop the model has published since inception, graded against the final box score, broken out by league, market and confidence band.
pb_board_coverage — How many of the slate’s games and props the board actually has measured history for, which is the number that tells you whether an empty answer means a quiet night or a thin feed.
pb_explain_metric — A plain definition of any figure the other six return — what it counts, over what window, and what it does not claim.
The connector is included with the Pro plan and with the free trial. It is the one thing Core does not carry, and the plan check runs on the server every time a key is used rather than only when one is issued.
On the setup page, once signed in. One key per account, shown once at the moment it is created — we store only a hash of it and cannot show it to you again. Lose it and you revoke and regenerate, which is a thirty-second job.
The endpoint with your key already appended. That is the whole of the setup and the whole of the authentication: no OAuth fields to fill in, no config file to edit unless you want one. Treat the pasted URL like a password, because it carries one.
A small endpoint that answers an AI client’s questions with structured data instead of a web page, using the open Model Context Protocol — so the assistant reasons over real fields rather than over whatever it managed to scrape.
No, and that is deliberate rather than a gap. Every posted price, book name and price age is stripped from the response before it leaves, because our data provider permits displaying prices in a product and prohibits re-serving them as raw data. The connector tells your assistant whether a book has the selection priced and links to the page here where the number is shown.
No. No response carries a grade, a rating or a projected return — those fields are removed inside the response builder, so a leak is an error rather than a quiet regression. What comes back is how often something has happened, over how many games, and where the board ranked it. Deciding what that is worth is still yours.
Claude, which it was built and verified against, and ChatGPT behind Developer mode. The consumer Gemini app has no way to add a custom MCP server, so it cannot; Gemini Enterprise can, added by an administrator as a custom MCP server data store.
Every tool is a read. The connector cannot place a bet, move money, see a payment method or change anything in your account, and the key is scoped to you — it reaches no other subscriber’s data. The key does travel in the URL you paste, because no hosted AI client can send a custom header, so treat that URL like a password and revoke it if it ever ends up somewhere it should not.
Yes. The connector is included with the Pro plan and with the free trial, and the plan check runs on the server on every call rather than only when a key is issued. The rest of the site — the board, the hit rates, the research pages — is still browsable without an account.
You revoke it and generate another on the setup page. We store only a hash of a key and genuinely cannot show it to you a second time, so there is no “reveal” that would recover it. Revoking invalidates whatever client was using it, which is the point.
Odds and lines come from licensed data feeds and refresh on a schedule; hit rates, edges and grades are Parlay Builder’s own calculations.