Polymarket & Kalshi Arbitrage MCP Server

by ralf9090 Your server? Claim it

answering

Polymarket & Kalshi Arbitrage MCP is answering right now. Last checked moments ago. It exposes 24 tools. Last commit 12 Nov 2026.

Polymarket & Kalshi live prediction market odds aggregator and cross-venue arbitrage scanner MCP.

Uptime history 7 hours of history

7 hours agonow

100.0%

Uptime 24h

25 of 25 checks

Tools

read from the server

561 ms

Response time

average over 24h

Stars

last commit 12 Nov 2026

Nothing serious here today

Today is the operative word: we check Polymarket & Kalshi Arbitrage MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add polymarket-kalshi-arb-mcp --transport http https://agent-kiosk.vercel.app/mcp

Settings → Connectors → Add custom connector, then paste this address

https://agent-kiosk.vercel.app/mcp

~/.codex/config.toml

[mcp_servers.polymarket-kalshi-arb-mcp]
url = "https://agent-kiosk.vercel.app/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "polymarket-kalshi-arb-mcp": {
      "url": "https://agent-kiosk.vercel.app/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "polymarket-kalshi-arb-mcp": {
      "type": "http",
      "url": "https://agent-kiosk.vercel.app/mcp"
    }
  }
}

Available tools 24

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

defi

defi_swap_quote

Executable DeFi Swap & Cross-Chain Bridge Action Calldata Builder ($0.05 USDC). Queries LI.FI and ParaSwap aggregators to compute the best DEX/Bridge route and returns ready-to-sign EVM transaction calldata (to, data, value, gasLimit) on Base, Ethereum, Arbitrum, Polygon, and Optimism.

defi_yields

DeFi highest APY & yield radar powered by DeFiLlama. Finds top lending and liquidity pools for any token (USDC, ETH, USDT, WBTC) filtered by blockchain and minimum TVL.

token

token_alpha

Real-time crypto & DeFi order-flow intelligence. Analyzes buy vs. sell transaction pressure, liquidity depth, volume velocity, FDV, and top DEX pools for any token ticker or contract address.

token_due_diligence

Institutional 3-in-1 Token Due Diligence Report ($0.10 USDC). Combines GoPlus on-chain honeypot/tax security audit, DexScreener DEX order-flow alpha & liquidity depth, and live Reddit/HN social sentiment into a composite investment grade (A-F).

academic

academic_search

Deep scientific & academic research tool. Queries OpenAlex and arXiv for peer-reviewed papers and preprints, returning citation counts, reconstructed abstracts, authors, and direct Open-Access PDF links.

b2b

b2b_company_dossier

Complete 4-in-1 B2B Sales & Competitive Intelligence Dossier ($0.10 USDC). Combines DNS/MX/SaaS tech stack infrastructure, clean website extraction, local business contact/phone leads, and live social mentions.

buy

buy_prepaid_pass

Mint a 30-Day Prepaid API Key Pass (ak_live_...) for $5.00 USDC on Base via x402. Unlocks all 23 paid per-call Agent Kiosk REST & MCP intelligence tools for 30 days via the X-API-KEY header without per-call x402 signing (ideal for LangChain, n8n, Make.com, OpenAI Actions, and Python/JS bots).

compliance

compliance_check

Institutional AML, Sanctions (OFAC), Phishing, Mixer, and Malicious Counterparty Compliance Screening ($0.05 USDC). Screens any 0x EVM address against GoPlus Security (Base + Ethereum) and 4-chain RPC footprint before autonomous agents execute transfers.

domain

domain_intel

B2B company & domain infrastructure intelligence. Resolves DNS records (A, MX, TXT, NS), identifies email provider (Google Workspace, M365, etc.), detects SaaS tech stack from TXT verification records, queries RDAP registration dates, and discovers active subdomains.

evm

evm_tx_simulator

Pre-flight EVM Transaction Simulator, Gas Estimator, Revert Reason Decoder, ERC-20 Allowance Checker & EIP-1967 Proxy Detector ($0.005 USDC). Simulates any transaction via eth_call & eth_estimateGas across Base, Ethereum, Arbitrum, Optimism, and Polygon before signing.

github

github_intel

GitHub repository & open-source competitive intelligence. Pass 'owner/repo' for deep repository metrics and latest releases, or a keyword topic to find the fastest-growing repositories.

kalshi

kalshi_polymarket_arb

Unified Kalshi, Polymarket & Manifold Prediction Market Aggregator and Cross-Venue Probability Spread / Arbitrage Scanner ($0.015 USDC).

llm

llm_chat_completions

OpenAI-compatible LLM Chat Completions Gateway ($0.002 USDC/call). Drop-in replacement for /v1/chat/completions settled in Base USDC via x402 with zero account or API key required.

maps

maps_leads

Find local businesses, companies, and places in any city worldwide. Extracts business name, phone number, website URL, address, opening hours, and GPS coordinates for lead generation and verification.

package

package_audit

Open-source package & CVE security scanner for coding agents. Checks npm, PyPI, or Rust crates against Google OSV.dev for known security vulnerabilities, deprecation status, and latest stable version.

perp

perp_funding_arbitrage

Real-time Cross-Exchange Perpetual Funding Rate Arbitrage, Annualized Basis Spread (APR), Open Interest & Crowded Positioning Radar ($0.008 USDC) across Hyperliquid and dYdX v4.

prediction

prediction_markets

Query live prediction market odds & real-money implied probabilities (%) from Polymarket and Manifold Markets for any crypto, macro-economic, political, or technology event.

security

security_audit

Pre-flight security and scam radar for AI agents. Audits 0x smart contracts/tokens (honeypot check, buy/sell tax, mintable risk, DEX liquidity via GoPlus & DexScreener) or web URLs (phishing, wallet drainers, prompt injection).

social

social_search

Search live social media discussions (Reddit, HackerNews, tech forums) for any topic, product, or trend. Returns clean structured JSON and LLM-ready Markdown without rate-limit blocks or API keys.

tradfi

tradfi_macro_radar

Global TradFi, Macro & DeFi Capital Flow Intelligence Radar ($0.008 USDC). Returns live S&P 500, Nasdaq, CBOE VIX Volatility, US Dollar Index (DXY), US 10Y Treasury Yield, Gold, WTI Crude Oil, Crypto Fear & Greed Index, BTC Dominance, and top DeFi chain TVL.

wallet

wallet_profiler

Multi-chain whale & wallet portfolio profiler across Base, Ethereum, Arbitrum, and Polygon. Returns live USDC and native ETH/POL balances, total outgoing transaction counts (nonce), wallet tier (Whale/Trader/Retail), and smart contract vs EOA detection.

web

web_extract

Extract clean, LLM-ready Markdown from any web URL while automatically scanning the page for hidden Prompt Injection traps targeting AI agents.

whale

whale_alpha_radar

Complete Multi-Chain Whale Portfolio & DeFi Yield Optimizer Report ($0.10 USDC). Profiles any 0x wallet across 4 EVM chains (Base, Ethereum, Arbitrum, Polygon), matches idle USDC/ETH balances against top DeFiLlama yield pools, and calculates projected annual yield.

x402

x402_ping

Ultra-low-cost ($0.001 USDC) x402 v2 & v1 wallet verification ping, payment settlement test, latency check, and round-trip echo endpoint on Base Mainnet.

Endpoints

URL	Transport	State	Latency	Checked
https://agent-kiosk.vercel.app/mcp	streamable-http	answering	1165 ms	0 min ago

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Polymarket & Kalshi Arbitrage MCP — questions

Answers built from our own checks of this server.

What can Polymarket & Kalshi Arbitrage MCP do?

It exposes 24 tools, read directly from the server on our last check. Among them: academic_search, b2b_company_dossier, buy_prepaid_pass, compliance_check, defi_swap_quote, defi_yields and 18 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

What is Polymarket & Kalshi Arbitrage MCP mostly used for?

Its tools cluster around token and defi. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.

Is Polymarket & Kalshi Arbitrage MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 25 of 25 checks got a reply (100.0%), average response time 561 ms. The bar chart above shows every period we have measured.

How do I connect Polymarket & Kalshi Arbitrage MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Polymarket & Kalshi Arbitrage MCP need an API key?

No. Polymarket & Kalshi Arbitrage MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 24 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Polymarket & Kalshi Arbitrage MCP?

It answers our handshake in 561 ms on average, which is faster than 21% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Polymarket & Kalshi Arbitrage MCP open source?

The code is open source: it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at agent-kiosk.vercel.app, which runs on its operator's own terms.