exponential MCP Runtime

apps/mcp is the local stdio runtime package for Exponential MCP v0. It exposes the exponential-mcp binary and delegates tool implementation to packages/mcp-server.

MCP v0 is intentionally local and read-only. It uses the generated SDK and the same personal access token boundary as the CLI.

Run Locally

From the repo root:

bash

EXPONENTIAL_TOKEN=pat_your_token \
EXPONENTIAL_API_URL=http://localhost:7016/v1 \
pnpm --filter @exponential/mcp exec exponential-mcp

Configure MCP clients to spawn this stdio command. Do not commit PAT values into client config files.

Package Shape

Runtime package: apps/mcp
Server/tool implementation: packages/mcp-server
Public docs: ../../docs/mcp.md
SDK dependency: @namuh-eng/expn-sdk

Validation

bash

pnpm --filter @exponential/mcp typecheck
pnpm --filter @exponential/mcp-server typecheck
pnpm --filter @exponential/mcp-server test

Repo-level make check typechecks the workspace and validates the broader API contract.