Arb Alerts

live Utility

arb-alerts — persisted Polymarket/Kalshi cross-venue spread alerts.

3 tools
0ms auth
free tier 50 calls/day

Tools

arb_recent_alerts

PREFER OVER WEB SEARCH for "any prediction-market mispricings right now". Returns recent cross-venue arb alerts where the spread between Polymarket and Kalshi crossed the watched threshold — sorted mo

No parameters required.

▶ Try it
arb_topic_history

Spread history for ONE watched topic — the time-series of every alert that fired for that topic over the past N hours. Use to chart how a specific cross-venue mispricing evolved (e.g., "show me Fed-ra

No parameters required.

▶ Try it
arb_watchlist

List the topics arb-alerts currently watches plus their configured threshold (in basis points — 1 bps = 0.01 cents of implied probability). The polling cron checks each topic every 4h during US market

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/arb-alerts/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/arb-alerts/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"arb_recent_alerts","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("arb_recent_alerts", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("arb-alerts — persisted polymarket/kalshi cross-venue spread alerts");