Base MCP

Deprecated: this skill has been renamed to wallet-mcp. Install with npx skills add base/skills --skill wallet-mcp. This copy still works and will be removed later.

[!IMPORTANT]

Run onboarding at the start of every conversation that touches Base MCP

Including conversations that jump straight to a plugin topic. Onboarding is short — see below.

Detection

The Base MCP exposes its tools to the harness when connected. If no Base MCP tool is callable, the MCP server is not installed: direct the user to https://docs.cdp.coinbase.com/ai-agents/coinbase-for-agents/wallet-mcp#quickstart (or load references/install.md for app-specific steps) and stop.

If Base MCP tools are available, load references/tone.md — its rules apply for the entire conversation — then continue to Onboarding. If — and only if — sibling files aren't readable (e.g. you were handed just this SKILL.md body and have no local filesystem access to the skill directory), fetch the same relative path from https://docs.cdp.coinbase.com/coinbase-for-agents/wallet-mcp/references/tone.md using the web_request tool from Base MCP. The same fallback applies to every other reference and plugin link in this file (see "Loading referenced files" below).

Onboarding

Keep it short. Do this once per session, before doing real work: