AcesAPI MCP server
The tennis data API. ATP and WTA singles matches with every set and tiebreak score, tournament draws round by round, player profiles, weekly rankings, head to head, surface splits, our own Elo by surface, and sportsbook moneylines on Grand Slam and Masters / WTA 1000 matches. REST API and MCP server. 500 free credits every month, no card.
Website: https://acesapi.com · Docs: https://acesapi.com/docs · Get a key: https://acesapi.com/signup
You: "What is Carlos Alcaraz's record on clay against top-10 players?"
Claude: [calls get_surface_splits]
You: "Who leads the Sinner and Alcaraz head to head, and how many of their meetings were finals?"
Claude: [calls get_head_to_head]
You: "Which moneylines were posted for the 2025 US Open men's final?"
Claude: [calls get_matches, then get_match]
Run it locally (stdio)
Most clients connect to https://mcp.acesapi.com/mcp directly. For a client that launches a local process instead:
git clone https://github.com/noahowsh/acesapi-mcp.git && cd acesapi-mcp && npm install
ACESAPI_API_KEY=your_key node index.js
{ "mcpServers": { "acesapi": { "command": "node", "args": ["/path/to/acesapi-mcp/index.js"], "env": { "ACESAPI_API_KEY": "your_key" } } } }
It forwards to the hosted server with your key, so every tool and credit cost is the same.
Skills
This repo also ships 16 free Claude skills in skills/ that turn Claude into a tennis analyst on top of the tools below: match and player lookup, surface Elo, head to head, ranking history, set-score modeling, odds math, edge detection and backtesting. They call the AcesAPI tools and keep to what the data holds (no serve statistics, moneylines on Slams, Masters and WTA 1000 only).
git clone https://github.com/noahowsh/acesapi-mcp.git
Or install them as a Claude Code plugin:
/plugin marketplace add noahowsh/acesapi-mcp
/plugin install acesapi-skills@acesapi
Or with the skills CLI: npx skills add noahowsh/acesapi-mcp.
Point Claude at the skills/ folder, add the MCP server (see Quick start), and ask a question such as "who is favored in tomorrow's Shanghai match and why?". Full catalog: skills/README.md. The skills also work on your own CSV or JSON without a key.
Useful pages
Python
The official Python client is on PyPI: acesapi.
pip install acesapi
export ACESAPI_API_KEY=sk_live_...
from acesapi import Client
client = Client()
ranks = client.get_rankings(limit=5)
for row in ranks["rankings"]:
print(row["rank"], row["name"], row["points"])
Typed errors for a bad key, no credits left, not found and rate limits, automatic retries, and to_dataframe for pandas.
Quick start
This is a hosted (remote) MCP server over Streamable HTTP. There is nothing to install.
Claude Code
claude mcp add --transport http acesapi "https://mcp.acesapi.com/mcp?key=YOUR_API_KEY"
Claude Desktop, Cursor and other clients
{
"mcpServers": {
"acesapi": {
"url": "https://mcp.acesapi.com/mcp?key=YOUR_API_KEY"
}
}
}
The key can also be sent as an x-api-key header or Authorization: Bearer. Connecting and listing tools works without a key; calling a tool needs one.
REST
curl -X POST https://mcp.acesapi.com/v1/list_tournaments -H "x-api-key: YOUR_API_KEY"
Every tool is POST /v1/{tool} with a JSON body.
Examples
Runnable Python (standard library only) and Node 18+ (no dependencies) examples live in examples/:
export ACESAPI_API_KEY=your_key
python3 examples/python/quickstart.py
node examples/node/quickstart.mjs
See examples/README.md for details. Get a free key (500 credits a month, no card) at https://acesapi.com/signup.
| Tool | What it returns |
|---|
list_tournaments | A season's tournaments with dates, surface, status and champion |
search_players | Find players by name or country |
get_tournament | A tournament's draw and results, round by round, with every set |
get_matches | Match results by day, tournament or season, with set and tiebreak scores |
get_schedule | Upcoming and in-progress matches for the next days |
get_match | One match: sets, tiebreak points, seeds, ratings and what the score says |
get_rankings | Weekly ranking lists since 2007, or one player's ranking history |
get_ratings | Our Elo ratings, overall or by surface |
get_head_to_head | Two players' meetings, wins by surface and in finals |
get_surface_splits | A player's record by surface: sets, games, tiebreaks, deciding sets |
get_player_stats | A player's season statistics from scores, by round and opponent rank |
get_player | Profile, ranking, ratings, career record, titles and recent matches |
get_player_matches | A player's matches with scores and ratings, filtered by season, surface or opponent |
Leagues: tennis (default, ATP), wta (pass league: "wta" to any tool).
Data
- ATP and WTA singles since 2007 (qualifying from 2022) with set and tiebreak scores
- Tournament draws and results round by round; weekly rankings since 2007
- Head to head, surface splits, player season statistics derived from scores, our Elo overall and by surface
- Sportsbook moneylines, returned in the
odds array of get_match (there is no separate odds tool): Grand Slam matches from mid-2020 and ATP Masters and WTA 1000 matches from August 2024, pre-match, refreshed hourly; the array is empty for other tournaments
- No serve statistics (aces, double faults, break points): ESPN does not publish them
Coverage by season, read live from the database: https://acesapi.com/docs
Pricing
500 free credits every month, no card. Plans: Starter $19/mo (10,000 credits), Pro $49/mo (30,000), Scale $149/mo (125,000). Wallet top-ups from $5, never expire. https://acesapi.com/pricing
Attribution
Tennis data from public ESPN data; sportsbook lines from The Odds API. Surfaces and ratings are ours. Not affiliated with the ATP, WTA, ITF or any tournament.
License
MIT for the contents of this repository. Data terms as above.
Use with Codex
Add this repo as a Codex plugin marketplace, then install the plugin:
codex plugin marketplace add noahowsh/acesapi-mcp
Then open the plugin directory in Codex and install acesapi-skills from the acesapi marketplace. The plugin bundles the skills in skills/ and the AcesAPI MCP server (https://mcp.acesapi.com/mcp). Set your key first (free at https://acesapi.com/signup):
export ACESAPI_API_KEY=your_key
Codex sends it as a bearer token.
Use with Gemini CLI
export ACESAPI_API_KEY=your_key
gemini extensions install https://github.com/noahowsh/acesapi-mcp
The extension adds the AcesAPI MCP server (https://mcp.acesapi.com/mcp) and sends the key in the x-api-key header. Get a free key (500 credits a month) at https://acesapi.com/signup.