Odel
handoff mcp server

handoff mcp server

@josephibraDeveloper ToolsTypeScriptUpdated 1mo ago

Durable agent-to-agent handoffs and shared scratchpad for multi-agent workflows.

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Server endpointStreamable HTTP
https://handoff-mcp-server-production.mcp.xpay.sh/mcp

This is the third-party server itself — Odel doesn't run it. Hitting this URL directly talks straight to the upstream server with no auth or proxying. Connect through Odel to front it with managed auth.

handoff-mcp-server

Durable handoffs and shared scratchpad for multi-agent workflows over MCP (HTTP transport).

Endpoints

  • GET / basic service info
  • GET /health health and storage stats
  • POST /mcp JSON-RPC MCP endpoint
  • GET /robots.txt discovery file
  • GET /llms.txt discovery file
  • GET /sitemap.xml discovery file

Environment Variables

  • PORT default 3000
  • DATA_DIR default /data
  • MCP_API_KEY required in production (NODE_ENV=production)
  • PUBLIC_MCP_DISCOVERY default true
  • PUBLIC_BASE_URL optional, used for absolute links in discovery files

Local Run

npm ci
npm run build
MCP_API_KEY=test-secret node dist/index.js

MCP Auth Behavior

  • Discovery methods (initialize, tools/list, resources/list, prompts/list, ping) can be public when PUBLIC_MCP_DISCOVERY=true.
  • tools/call requires valid upstream auth when MCP_API_KEY is set:
    • Authorization: Bearer <MCP_API_KEY> or
    • x-api-key: <MCP_API_KEY>

Xpay + Railway Configuration (Required)

  1. Railway variables:
  • MCP_API_KEY=<your-strong-key>
  • PUBLIC_MCP_DISCOVERY=true
  • PUBLIC_BASE_URL=https://handoff-mcp-server-production.up.railway.app
  1. Xpay MCP URL:
  • Use https://handoff-mcp-server-production.mcp.xpay.sh/mcp?key=xpay_sk_...
  • Without ?key=..., Xpay returns auth required and requests will not forward.
  1. Client calls through Xpay:
  • Keep the Xpay key in URL.
  • Also send upstream auth header for tools/call (x-api-key or Bearer token matching MCP_API_KEY).

Publishing

MCP Registry

  • Server name: io.github.josephibra/handoff-mcp-server
  • Primary remote: Xpay URL (with key at client usage time, not committed)
  • Secondary remote: Railway URL

Smithery

  • Namespace: josephibrahim
  • Server ID: handoff-mcp-server
  • MCP Server URL: https://handoff-mcp-server-production.mcp.xpay.sh/mcp?key=xpay_sk_...

Agentverse

  • Create a new agent and attach MCP server:
    • URL: https://handoff-mcp-server-production.mcp.xpay.sh/mcp?key=xpay_sk_...
    • Headers: x-api-key: <MCP_API_KEY> for tool execution paths

Recommended Extra Discovery Listings

  • PulseMCP directory
  • mcp.so
  • OpenTools catalog
  • MCPmarket / mcpservers.org

Use the same canonical MCP URL and matching auth notes everywhere to avoid inconsistent behavior.