Give Claude, Cursor, VS Code or any other MCP client live data on Hyperliquid's HIP-4 outcome markets from every deployer: books, fair lines with their sources, rule comparisons where several deployers list the same question, and the newest listings. Free, with no key to set up.
@hyperodds/mcp runs on your machine over stdio and forwards each request to the hosted Hyperodds
server. It has no dependencies, and its tools are read-only: none can trade or access an account.
Quick start
Claude Desktop (Settings > Developer > Edit Config), Cursor (~/.cursor/mcp.json, or
.cursor/mcp.json in one project) and Windsurf take this entry:
{
"mcpServers": {
"hyperodds": {
"command": "npx",
"args": ["-y", "@hyperodds/mcp"]
}
}
}
Claude Code:
claude mcp add hyperodds -- npx -y @hyperodds/mcp
VS Code (.vscode/mcp.json):
{
"servers": {
"hyperodds": { "type": "stdio", "command": "npx", "args": ["-y", "@hyperodds/mcp"] }
}
}
The package needs Node.js 22 or later. A client that connects to remote servers can skip it and
use https://api.usehyperodds.com/mcp directly over Streamable HTTP.
What to ask
- "Which HIP-4 markets show the biggest edge after fees right now?"
- "Is the next Fed decision priced the same on every deployer, and do their rules match?"
- "Where does the fair line for the BTC markets settling today come from, and how confident is it?"
- "What was listed in the last hour?"
Tools
| Tool | Input | Output |
|---|---|---|
odds_markets |
category, deployer, sort (volume, edge, new, settling), q, limit (up to 100), offset |
Markets with bid, ask, fair line, best buy edge after fees, 24h volume, event time and status, plus how many match in total |
odds_cluster |
id, or the outcome of any member |
One question listed by several deployers: each member's rule grade (SAME, CLOSE or DIFFERENT), the differences found and the merged book |
odds_fair |
outcome |
One market's fair line: probability and band, method, confidence and flags, each source with its weight and age, plus the book and the edge for buying or selling either side |
odds_new |
category, limit (up to 100), offset |
Markets in listing order, newest first, with the same fields as odds_markets |
Your client receives each tool's input and output schema when it connects. The MCP guide explains the numbers.
How it works
Each message from the client goes out as one HTTPS request, and its response comes straight back. The bridge keeps no state beyond the protocol version agreed when the client connects. Requests run side by side. If one fails or gets no answer within 30 seconds, the client receives a JSON-RPC error that names the cause; a cancelled request is dropped. When the client closes the connection, the bridge drops what is still in flight and exits.
Reading the numbers
Prices are decimals from 0 to 1 for a market's first side, often Yes. Edges are percentage points after every fee, including the fee Hyperliquid takes at settlement, for a $100 order: 2.9 means 2.9¢ a share. An edge is null when $100 would not fill.
Price markets take their fair line from Deribit, Bybit and Cboe option surfaces, or from realized
volatility on Hyperliquid perps. Sports and events take theirs from matched Polymarket and Kalshi
quotes. Fair lines are estimates: edge rankings only use lines with a fairConfidence of at least
0.5 and more than one source, so check both before acting on one.
Limits
Each IP address gets 1,000 tool calls a day, reset at 00:00 UTC. Every request, tool call or not, also counts toward a rate limit of 5 a second, with bursts of up to 30. Past either limit, the server answers with an error that names it.
Configuration
| Variable | Default | Purpose |
|---|---|---|
HYPERODDS_MCP_URL |
https://api.usehyperodds.com/mcp |
The server to forward to |
Set it in the client entry's env:
{
"command": "npx",
"args": ["-y", "@hyperodds/mcp"],
"env": { "HYPERODDS_MCP_URL": "https://mcp.example.com/mcp" }
}
Behind a proxy, add HTTPS_PROXY and NODE_USE_ENV_PROXY=1 to the same env. Node.js reads the
proxy only when the second is set, which needs Node.js 22.21 or later.
npx -y @hyperodds/mcp --help and --version print the usage and the version.
Development
git clone https://github.com/usehyperodds/hyperodds-mcp.git
cd hyperodds-mcp
npm ci
npm test
npm run lint and npm run typecheck run the other checks CI runs. See
CONTRIBUTING.md before
opening a pull request.
Security
Report vulnerabilities privately to security@usehyperodds.com, or through the repository's Security tab. Please do not open a public issue for them. SECURITY.md has the details.
License
MIT. Third-party names identify data sources and compatible clients; Hyperodds is not affiliated with any of them.