🪙 Crypto & DeFi MCP — TVL, Stablecoins, Funding, Odds

One MCP endpoint that gives an AI agent live crypto & DeFi data — DeFi protocol TVL, stablecoin supply and peg status, perpetual-futures funding rates, prediction-market odds from Kalshi and Polymarket, and the top-100 crypto by market cap — all behind a single Model Context Protocol connection. Point Claude Desktop, Cursor, Windsurf, Cline, or n8n at this server and your agent can answer "what's the funding rate on BTC perps right now?", "is USDT holding its peg?", or "what's the TVL on the largest DeFi protocols?" without you wiring up five separate APIs and five sets of credentials.

One connection. Five crypto data domains. Built for AI agents — the MCP server that turns a chatbot into a crypto analyst.

Why use this

• One endpoint instead of five integrations. TVL, stablecoins, funding rates, prediction markets, and market-cap rankings normally mean five APIs, five auth schemes, and five rate-limit regimes. This MCP bundles them behind one streamable-HTTP connection your agent already knows how to call.
• Purpose-built for AI agents. Each tool returns clean, structured JSON that an LLM can reason over directly — no HTML scraping, no glue code in the agent.
• Live, not stale. Every tool call hits live data sources at call time, so the agent reasons over current TVL, current funding, and current odds.
• Works with the MCP clients you already use. Claude Desktop, Cursor, Windsurf, Cline, n8n, and any other MCP-compatible host.
• Pay only for what the agent calls. Pay-per-event billing per tool call — no subscription, no idle cost.

Tools

This MCP server exposes the following crypto & DeFi tools (inferred from its data domains):

• DeFi protocol TVL — total value locked across the largest DeFi protocols, for sizing where capital is parked and tracking inflows/outflows.
• Stablecoin supply & peg — circulating supply and current peg status for major stablecoins (USDT, USDC, DAI, etc.), to monitor depeg risk and supply expansion/contraction.
• Perpetual-futures funding rates — current funding rates on crypto perpetual contracts, the leading signal of leveraged long/short positioning and crowded trades.
• Prediction markets (Kalshi & Polymarket) — live odds and market prices from the two leading prediction-market venues, for event-probability and sentiment signals.
• Top-100 crypto by market cap — the ranked market-cap leaderboard with prices, for a quick market overview and screening.

Use cases

• Agentic crypto research — Ask your Claude Desktop or Cursor agent "summarize DeFi TVL trends and which stablecoins are off-peg" and let it call the relevant tools and synthesize an answer.
• Trading copilots — Give a trading assistant live funding rates and TVL so it can flag crowded leverage or capital rotation without you leaving the chat.
• Risk monitoring agents — An automated agent (via n8n) polls stablecoin peg status and alerts when a major stablecoin drifts from $1.00.
• Event / macro desks — Pull Kalshi and Polymarket odds into an agent that tracks the market-implied probability of macro and crypto events.
• Market overview bots — A Slack or Discord agent answers "top 10 crypto right now" and "biggest DeFi protocols by TVL" on demand from the top-100 and TVL tools.
• Cross-domain synthesis — Because all five domains sit behind one connection, an agent can correlate signals (e.g. rising funding + falling TVL) in a single reasoning step.

Connect

This is a streamable-HTTP MCP server. Point your MCP client at:

https://nexgendata--crypto-defi-mcp.apify.actor/mcp

Claude Desktop / Cursor / Windsurf / Cline — add the server to your MCP config with the URL above (and your Apify token where the client asks for auth). Example config block:

{
  "mcpServers": {
    "crypto-defi": {
      "url": "https://nexgendata--crypto-defi-mcp.apify.actor/mcp",
      "headers": { "Authorization": "Bearer YOUR_APIFY_TOKEN" }
    }
  }
}

n8n — use the MCP Client node with the streamable-HTTP transport and the same URL. Once connected, the five crypto tools appear in your agent's tool list automatically.

Pricing

This MCP server runs on Apify's pay-per-event (PPE) model — you pay per tool call the agent makes, at $0.10 per call, plus a sub-cent actor-start event. No subscription, no seat licence, no idle cost.

Worked example:

• An agent that makes 50 tool calls in a research session → $5.00
• A monitoring agent polling peg status 200 times in a day → $20.00
• A one-off "market overview" that calls 5 tools → $0.50

Because billing is per tool call, an idle MCP connection that makes no calls costs nothing.

FAQ

Q: What is MCP and why does it matter here? A: The Model Context Protocol is the open standard that lets AI agents (Claude Desktop, Cursor, etc.) discover and call external tools. This server exposes crypto & DeFi data as MCP tools, so an agent can use them natively without custom integration code.

Q: Which clients work? A: Any MCP-compatible host — Claude Desktop, Cursor, Windsurf, Cline, n8n, and others — using the streamable-HTTP transport and the URL above.

Q: Is the data live? A: Yes. Each tool call fetches from live sources at call time, so funding rates, TVL, peg status, and odds reflect the current market.

Q: Do I need separate API keys for Kalshi, Polymarket, etc.? A: No. The MCP server handles the underlying sources; you only need your Apify token to authenticate the MCP connection.

Q: Can an AI agent pay for this autonomously? A: Yes — the pay-per-event model and Apify's agent-payment support mean an autonomous agent can discover and invoke the server and be billed per tool call.

Schema stability & versioning

This server follows NexGenData's additive-only contract: new tools and new fields may be added over time, but existing tool names and output fields are not renamed or removed without a major-version bump and advance notice. Build agent workflows on these tools with confidence.

Compliance & legal

• This MCP server reformats public crypto, DeFi, and prediction-market data. It is not affiliated with, endorsed by, or sponsored by any protocol, exchange, Kalshi, or Polymarket.
• Nothing returned is financial or investment advice.
• For any regulated or trading decision, verify against the primary data source.
• You are responsible for ensuring your downstream use complies with applicable laws and venue terms of use.

Related NexGenData actors

Part of NexGenData's Finance / Markets and MCP clusters — pair this server with:

• DeFi TVL Protocol Tracker
• Stablecoin Supply & Peg Monitor
• Crypto Perp Funding Rates Tracker
• Kalshi Prediction Markets Tracker
• Polymarket Prediction Markets Tracker
• Crypto Top-100 Screener

Browse the full 200+ actor catalog at https://apify.com/nexgendata?fpr=2ayu9b.