Give Claude Code live crypto market data — prices, cross-exchange funding and open interest, liquidations, market regimes, Fear & Greed, dealer gamma and whale activity — as native MCP tools it can call while you work.
Setup is two parts: the Agent Skill teaches Claude Code *how and when* to use our data, and the MCP server gives it the *live tools*. The skill lands in ~/.claude/skills/; the MCP server connects over remote HTTP with your API key.
~/.claude.json
Skills · ~/.claude/skills/
Agent docs →
Install the skill globally so it's available in every project. It teaches Claude Code which endpoint answers which question, plus ready-made market workflows. See the Agent Skill page for what's inside.
npx skills add Crypto-Data-API/cryptodataapi-skills -g -y
Add the remote HTTP server with your key in the X-API-Key header. This is the recommended transport — no Node, nothing to install. Don't have a key yet? Grab a free one at cryptodataapi.com/login, or let Claude call the create_free_api_key tool.
Prefer a local stdio server? Use the cryptodataapi-mcp npm bridge instead — it forwards to the same hosted endpoint.
claude mcp add --transport http cryptodataapi \ https://cryptodataapi.com/mcp \ --header "X-API-Key: cdk_live_YOUR_KEY"
Tip: Copy inserts your real API key automatically when you're logged in. No key yet? Connect keyless and ask the create_free_api_key tool, or grab a free key.
CRYPTODATA_API_KEY=cdk_live_YOUR_KEY \ claude mcp add cryptodataapi -- npx -y cryptodataapi-mcp
Start a fresh Claude Code session so it picks up the new server (/mcp lists connected servers and their tools). Then ask for a market read — see the example prompts below. Kick off with get_daily_snapshot for a one-call overview.
“What's the current market regime and which strategy baskets fit it?”
“Compare BTC funding rates across exchanges and flag crowded positioning.”
“Which coins have the highest liquidation risk right now?”
“Is dealer gamma amplifying or dampening BTC moves today?”
“Pull the daily snapshot and write me a three-line market brief.”
No. The skill is free, and the Free API tier (no card) covers market health, regimes, Fear & Greed, macro, flows, 2,000+ coin profiles and full-universe Hyperliquid funding + open interest. Per-coin quant, gamma and whale signals need Pro.
On the remote transport the key is stored in the server header inside ~/.claude.json when you run claude mcp add. On the stdio bridge it comes from the CRYPTODATA_API_KEY env var. It's sent as X-API-Key on every tool call and never leaves your machine except to our API.
Restart the session (or run /mcp to reconnect) so it re-reads the server list. Confirm the server shows as connected under /mcp. If a data tool returns a 401, your key is missing or wrong; re-run claude mcp add with a valid cdk_live_ key, or call create_free_api_key to mint one.
Missing an agent, a config that changed, or a step that didn't work? Tell us and we'll fix it.