Meridian MCP Server

@meridiantoolkit/mcp

MCP server for the Meridian business-services platform. Exposes services, service requests, workflow steps, payments and meetings as Model Context Protocol tools and resources. MCP is a protocol, not a host-specific plugin format — this server runs unchanged in Claude Code, Codex CLI, Claude Desktop, pi, or any other MCP-compatible client.

Listed on the official MCP Registry as io.github.meridian-silkdev/meridian-mcp, and on Glama.

Install

cd meridian-mcp
npm install
npm run build

Or once published:

npx @meridiantoolkit/mcp

Configure

Copy .env.example or set env vars directly:

More: /.well-known/agent-configuration exposes Agent Auth discovery (capability-based, short-lived JWTs, device-auth/CIBA approval). Agents can use either a long-lived mrd_ key or scoped Agent Auth grants — see meridian-skills meridian-api skill.

Without MERIDIAN_API_KEY every tool still responds — it explains what endpoint would be called and what to configure, so the server is safe to run in dry-run / demo mode.

Run

npm start            # stdio MCP server
npm run dev          # watch mode via tsx

Claude Code

claude mcp add meridian -- node /absolute/path/to/meridian-mcp/dist/index.js
# or, once published:
claude mcp add meridian -- npx -y @meridiantoolkit/mcp

Or drop a .mcp.json in your project root (shareable with a team, checked into git):

{
  "mcpServers": {
    "meridian": {
      "command": "npx",
      "args": ["-y", "@meridiantoolkit/mcp"],
      "env": {
        "MERIDIAN_API_URL": "http://localhost:3000",
        "MERIDIAN_API_KEY": "..."
      }
    }
  }
}

Codex CLI

Codex reads MCP servers from ~/.codex/config.toml (or a project-scoped .codex/config.toml for a trusted project):

[mcp_servers.meridian]
command = "npx"
args = ["-y", "@meridiantoolkit/mcp"]
env = { MERIDIAN_API_URL = "http://localhost:3000", MERIDIAN_API_KEY = "..." }

Or via the CLI: codex mcp add meridian -- npx -y @meridiantoolkit/mcp. The same config is shared by Codex CLI, the IDE extension, and the ChatGPT desktop app.

Codex has no plugin/skill system (unlike Claude Code and pi) — its equivalent of meridian-plugin/meridian-skills is just this MCP server plus project guidance. Copy AGENTS.md.example into your project's AGENTS.md for the same tool-usage guidance the skills packages give elsewhere.

Claude Desktop / pi

Add to your MCP config (Claude Desktop: claude_desktop_config.json; pi: .pi/settings.json → mcpServers, or pi --mcp):

{
  "mcpServers": {
    "meridian": {
      "command": "node",
      "args": ["/absolute/path/to/meridian-mcp/dist/index.js"],
      "env": {
        "MERIDIAN_API_URL": "http://localhost:3000",
        "MERIDIAN_API_KEY": "..."
      }
    }
  }
}

pi --mcp meridian-mcp/dist/index.js
# or via npx after publish
npx @meridiantoolkit/mcp

Tools

Resources

Development

npm run typecheck
npm run build
npm test          # spawns the built server over stdio and exercises every tool/resource

Publish

First publish (manual, one-time — a scoped package can't use Trusted Publishing until it exists on the registry):

npm login                     # once per machine
npm publish --access public

CI/CD

• .github/workflows/ci.yml — every push to main and every PR: npm ci, typecheck, build, npm test (the real stdio smoke suite).
• .github/workflows/publish.yml — fires on a published GitHub Release, re-runs the full test suite, checks the release tag matches package.json's version, then:
  1. npm publish --provenance via npm's Trusted Publishing (OIDC) — no NPM_TOKEN secret to create or rotate.
  2. Publishes/updates the listing on the official MCP Registry via mcp-publisher login github-oidc + mcp-publisher publish (also OIDC, no secret). server.json's version is synced to the release tag automatically. This step has continue-on-error: true — the registry is explicitly in preview, so a hiccup there never blocks the actual npm release.

mcpName requirement: package.json has an "mcpName": "io.github.meridian-silkdev/meridian-mcp" field — the registry's package validator needs this to confirm the npm package and the GitHub-verified server identity are published by the same owner. If you ever rename the server in server.json, update this field too or publishes will 400.

Known upstream bug, worked around: the interactive mcp-publisher login github device flow reliably 403s when publishing under a GitHub organization namespace (confirmed-public membership, Owner role, doesn't matter — see modelcontextprotocol/registry#1537, still open as of this writing). github-oidc from inside a GitHub Actions workflow running in the org's own repo sidesteps it entirely, since it verifies the workflow's repo identity rather than checking the human account's org list. That's why the registry publish step lives in CI, not as a manual local command.

One-time setup after the first manual publish: on the package's npmjs.com page → Settings → Trusted Publisher → GitHub Actions, and point it at meridian-silkdev/meridian-mcp, workflow publish.yml. After that, releasing a new version is just:

npm version patch   # or minor/major — bumps package.json + creates a git tag
git push --follow-tags
gh release create v0.1.3 --generate-notes   # publishing this release triggers both the npm and MCP Registry publish steps