OddsPapi has the widest bookmaker list of any provider on this page and gives historical odds away for nothing, which is a genuinely generous thing to do in a market that usually charges for it (oddspapi.io, read 2026-09-01). If breadth is your requirement, they are hard to beat. Where ParlayAPI differs is knowing the bill before you commit: their pricing page is a build-your-own calculator, ours is a fixed list at /pricing.
OddsPapi is a developer-first feed with an unusually wide supply side and an unusually configurable commercial model.
Their homepage calls it “The Fastest and Most Complete Sports Betting API,” delivering real-time odds from over 300 bookmakers across more than 60 sports and over 12,000 yearly competitions, with moneyline, spread, totals, draw no bet, double chance, 1X2, player props, team props and exact score. The docs list REST endpoints for sports, bookmakers, tournaments, fixtures, markets, participants, odds, historical odds, settlements and scores, plus a WebSocket API, with authentication by an apiKey request parameter.
Their pricing page is an interactive calculator whose inputs are bookmakers, sports and requests; on a plain read it shows $0.00 per month until you configure it, and no fixed tier table renders. That is a defensible design if your needs are narrow, because you pay for the slice you take. It is harder if you are budgeting a project you have not scoped yet, or if procurement wants a list price in an email. We are deliberately quoting no OddsPapi dollar figure on this page, because we did not read one.
We publish this page to win business, so it starts with the case against us. Everything in this section is OddsPapi's own description of OddsPapi, read 2026-09-01 and linked in verify it yourself. If one of these paragraphs describes your project, buy from them.
Over 300 bookmakers on the homepage, described in their own roundup as sharps plus crypto plus exchanges. Breadth is not a vanity metric for a line shopper: the value of shopping comes from the tail, and a provider that carries the odd regional book you have never heard of is carrying the one holding the outlier number. On raw count, OddsPapi is ahead of us and we are not going to pretend otherwise (oddspapi.io, read 2026-09-01).
Their site offers historical odds at no cost, framed as “Test and train your predictive models on real historical odds” at “No Cost to You.” Most of this market treats history as a paid add-on. If you are backtesting a model and have not yet decided whether the project is real, that is a materially cheaper starting point than paying for an archive up front (oddspapi.io, read 2026-09-01).
Over 12,000 yearly competitions, and markets built around European conventions: 1X2, draw no bet, double chance and exact score are first-class rather than afterthoughts. If your product is not US-shaped, that is the right catalogue and our US-heavy source list is the wrong one (oddspapi.io, read 2026-09-01).
ParlayAPI figures are measured against our own production API and catalogue as of 2026-09 and are checkable on live public endpoints. OddsPapi figures are read from their own pages on 2026-09-01, with the URL in every row. Where OddsPapi publishes no number, the cell says so rather than guessing.
| Feature | ParlayAPI | OddsPapi |
|---|---|---|
| Getting a key | Self-serve signup, key immediately, no card, plus a keyless demo endpoint you can call before signing up | Self-serve sign-in exists; the docs describe an apiKey request parameter for all endpoints |
| Published price list | Fixed, published tiers at /pricing, plus a cost calculator for your own call pattern | A configure-it-yourself calculator priced on bookmakers, sports and requests; no fixed tier table renders on a plain read.we quote no OddsPapi dollar figure anywhere on this page, because we found none there when we read it, read 2026-09-01 |
| Free tier | 1,000 credits/month, no card required, full book list | Free historical odds offered; no free live-odds tier documented on the pages we read |
| Bookmaker breadth | 30+ sportsbooks and sources, live at GET /v1/bookmakers |
Over 300 global bookmakers claimed on their homepage and in their docs |
| Sport and league coverage | 90+ sport keys, live at GET /v1/sports |
More than 60 sports and over 12,000 yearly competitions claimed |
| Streaming | WebSocket and SSE on Business tier and up - see /pricing | “Low-latency WebSocket feed” advertised; a WebSocket API page is in their docs, terms not published |
| Historical odds | Game closing lines from 2005 and a player-prop closing-line archive | ✓ Historical odds offered free |
| Prediction markets | Kalshi and Polymarket in the same schema as sportsbooks | ✓ They list this too: “Prediction market data (Polymarket, Kalshi)” appears in the structured feature list on their homepage and pricing page, read 2026-09-01, alongside exchanges and crypto books |
| AI-agent tooling | MCP server: parlayapi-mcp on PyPI plus a hosted endpoint, documented at /mcp |
No MCP server named on the pages we cite, read 2026-09-01 |
| Independent reachability record | Published at /watch, ourselves included, probed every 5 minutes | ✓ Also on that board, probed on the same schedule and scored by the same rule |
We do not reprint our own paid prices anywhere on this page. They live at /pricing, which is the only surface that can be right about them, and /tools/cost-calculator will estimate what your own call pattern costs before you sign up for anything.
OddsPapi wins the coverage rows above and we have said so. What we offer instead is a price you can read before you talk to anyone and a demo you can run before you sign up for anything.
# keyless demo endpoint, 60 requests/hour per IP curl "https://parlay-api.com/v1/try/americanfootball_nfl/odds" # keyless public feeds, same data path as the paid API curl "https://parlay-api.com/moves.json" curl "https://parlay-api.com/divergence.json"
curl "https://parlay-api.com/v1/sports/americanfootball_nfl/odds?regions=us&markets=h2h&apiKey=YOUR_KEY"
There is an MCP server too, if your client is an AI agent rather than a script:
parlayapi-mcp on PyPI, plus a hosted endpoint documented at
/mcp. Full endpoint reference at /docs.
One more thing you can check on us rather than take on faith: /watch probes odds-API endpoints every 5 minutes from our production server and publishes the result, ParlayAPI included and measured by exactly the same rule as everyone else. OddsPapi is one of the endpoints on that board, so you can see our two edges measured side by side, by the same probe, on the same schedule.
Every OddsPapi statement on this page came from one of these pages on the date shown. Prices and coverage move; if you are making a buying decision, open them yourself rather than trusting a page published by a competitor, including this one.
| What we read | Source URL | Read date |
|---|---|---|
| Positioning, bookmaker and sport coverage, WebSocket and free historical claims | oddspapi.io/ | read 2026-09-01 |
| Endpoint list, authentication, WebSocket API, coverage restated | oddspapi.io/us/docs | read 2026-09-01 |
| Pricing model: a bookmakers x sports x requests calculator, no fixed tier table | oddspapi.io/pricing | read 2026-09-01 |
| Their own roundup, which ranks OddsPapi first | oddspapi.io/blog/best-odds-apis-2026-comparison | read 2026-09-01 |
ParlayAPI's own numbers are checkable without asking us: GET /v1/sports and
GET /v1/bookmakers return the live catalogue,
/watch publishes our reachability next to other providers', and
/pricing carries current prices.
ParlayAPI does, and we compete with OddsPapi. Every OddsPapi claim here is linked to an OddsPapi page, read 2026-09-01, and the section above the comparison table is entirely about what they do better, and three rows of the table itself go to them.
Breadth, mainly. Their homepage claims over 300 global bookmakers and more than 60 sports across over 12,000 yearly competitions, which is more supply than we carry, and supply is exactly what line shopping monetises. They also give historical odds away free, and their market catalogue is built for non-US football in a way ours is not.
We are not going to tell you, because we did not read a number. Their pricing page (oddspapi.io/pricing, read 2026-09-01) rendered an interactive calculator with bookmakers, sports and requests as inputs and $0.00 per month before configuration, with no fixed tier table. Configure it yourself for a real quote. Our rule on this page is that we never print a competitor price we did not read on the day we published.
Because a number you can read is a number you can budget against, and a number you have to configure is a number you find out at the end. Ours are at /pricing, and /tools/cost-calculator will estimate the bill for your own polling pattern before you create an account. Neither model is dishonest; they suit different buyers.
Yes, and this is the least self-serving thing on the page. /watch probes OddsPapi's public API edge and ours every 5 minutes from our production server and publishes both, scored by one shared rule, with the machine-readable version at /watch.json. We are one of the providers on that board, which is the only reason it is worth anything.
1,000 credits a month, no credit card, no sales call. If OddsPapi turns out to be the better fit for what you are building, you have lost nothing but an afternoon.