Add Sume as an MCP server in Junie CLI (mcp.json)

Add Sume to Junie CLI's mcp.json as a remote server with url set to https://mcp.sume.com/mcp. For an API key, add a headers entry of Authorization: Bearer <key>. For OAuth, omit headers and use the Authorize action Junie shows for servers that need it.

Junie's file paths and field names are from its MCP configuration page, read 2026-09-30. Sume's endpoint and auth are from the MCP quickstart and MCP OAuth and API keys.

Where does Junie read mcp.json?

Per Junie's page, a project file lives at .junie/mcp/mcp.json and a user file at ~/.junie/mcp/mcp.json. Use the project file for a team and the user file for yourself.

What does the Sume entry look like?

Junie's remote example is an object with a url and a headers map holding an Authorization bearer value. Sume accepts Authorization: Bearer $SUME_API_KEY on the hosted endpoint, and an API-key session sees the full tool set, including paid tools. Paid and write calls still need an idempotency_key. Paste your own key into your user file only, never into a committed project file. The surrounding mcpServers wrapper is not in the snippet I read, so copy the outer structure from Junie's page.

"sume": {
  "url": "https://mcp.sume.com/mcp",
  "headers": {
    "Authorization": "Bearer <your Sume API key>"
  }
}

How does the OAuth path work instead?

Junie says remote servers that need OAuth are added with an "Authorization required" status, and you select the server and choose Authorize. Sume returns an OAuth challenge and protected-resource metadata, so a bare url entry should land in that state. The default grant is mcp:read, which is read-only; Write is an opt-in toggle on the consent page. Docs say not to store OAuth tokens in CLI config.

How do I confirm it works?

Ask the agent to call tools_list, which lists every tool visible to the session. A read-only session shows read tools only; paid tools such as generate_image appear with a key or after Write is granted. For which credential to choose, see API key vs OAuth for an MCP server; a similar JetBrains setup is in IntelliJ with GitHub Copilot.