https://mcp.0xarchive.io/mcp. Claude Code connects over HTTP with your API key as a bearer token. Nothing runs locally.
Claude Code recipe
1
Store the API key
Keep the key in the shell or secret store Claude Code reads.
2
Add the MCP server
Register the hosted endpoint with the HTTP transport.
3
Ask for one bounded call
Start with one venue family, one symbol, one data family, and one small window. Ask Claude to name the route before it calls a tool.
What Claude should know
Task checklist
After the server is connected, give Claude a narrow tool-calling checklist.
If Claude cannot call a named 0xArchive tool, fix the connection before asking it to analyze data. If it can call tools but cannot name the venue family, keep the task in clarification mode.
Use another surface when
Use CLI if the job is a shell command or CI task. Use Skill if the Claude environment uses localSKILL.md workflows instead of MCP tools. Use OpenAPI and SDKs for generated application code. Use REST API when you need raw HTTP behavior.
Security
Do not paste real API keys into prompts or checked-in MCP config. Pass the bearer token through Claude Code’s environment or secret store. Account, key, and billing tools change account state, so keep them behind explicit approval.Plans and limits
Free gets the full catalog; paid plans raise your limits
Every tier, including Free, gets the full catalog: L2, L3, and L4 order books, order flow, TP/SL, trades, candles, funding, open interest, and liquidations, plus WebSocket access. Tiers differ only on credits, rate limits, concurrency, WebSocket scale, and replay speed.