Dero Server

Model Context Protocol server for DERO chain inspection — query daemon state, inspect smart contracts, trace transactions, and run read-only diagnostics from Cursor, OpenCode, Claude Desktop, or any MCP host.

MCP Registry CI dero-mcp-server MCP server

Registry listing: io.github.DHEBP/dero-mcp-server · Version: 0.2.2 · Transport: stdio (npm package)

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Model Context Protocol (MCP) server that exposes read-only and analysis calls against a DERO Stargate daemon JSON-RPC endpoint. Use it from Claude Desktop, Cursor, OpenCode, or any MCP client that launches a local process over stdio.

Quick start

1. Add this to your MCP host config

{
  "mcpServers": {
    "dero-daemon": {
      "command": "npx",
      "args": ["-y", "dero-mcp-server"],
      "env": {
        "DERO_DAEMON_URL": "http://127.0.0.1:10102"
      }
    }
  }
}

Use your own daemon URL when possible. If DERO_DAEMON_URL is omitted, the server uses the default public RPC.

2. Restart your MCP host

3. Try a prompt

"Check if my DERO node is synced and summarize chain health."

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What it does

• Connects to {DERO_DAEMON_URL}/json_rpc (default http://82.65.143.182:10102).
• Registers one MCP tool per common daemon method (DERO.GetInfo, DERO.GetHeight, DERO.GetSC, etc.).
• Adds bundled docs retrieval tools for derod, tela, hologram, and deropay (ships inside the npm package — no local clone required).
• Exposes MCP resources and prompts for consistent investigation workflows.
• Returns JSON results as MCP text content.
• Returns structured tool errors with _meta.error (code, hint, retryable) to help agents self-correct.

Not included (by design in v0.1): wallet RPC (transfer, scinvoke), DERO.SendRawTransaction, DERO.SubmitBlock. Those can move funds or consensus data; add them only with explicit user consent and a locked-down setup.

Requirements

• Node.js 18+
• A reachable DERO daemon with RPC enabled (local node or your own remote URL).

Install & build

cd dero-mcp-server
npm install
npm run build

Run (same default RPC as below if DERO_DAEMON_URL is unset):

node dist/index.js

Or set an explicit URL (e.g. your local daemon):

DERO_DAEMON_URL=http://127.0.0.1:10102 node dist/index.js

The baked-in default is a third-party public RPC (82.65.143.182:10102) — prefer your own node when you run one.

Strip a trailing /json_rpc if you paste a full JSON-RPC URL — this server appends /json_rpc.

Claude Desktop (same pattern for OpenCode and Cursor)

Add to claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/claude_desktop_config.json):

{
  "mcpServers": {
    "dero-daemon": {
      "command": "node",
      "args": ["/ABSOLUTE/PATH/TO/dero-mcp-server/dist/index.js"]
    }
  }
}

Optional: add "env": { "DERO_DAEMON_URL": "http://127.0.0.1:10102" } if you use a local daemon instead of the default public RPC.

Restart Claude Desktop (or your OpenCode/Cursor host).

Cursor (or OpenCode)

In Cursor Settings → MCP (or OpenCode MCP settings), add a server that runs the same command / args / env as above.

OpenCode

In OpenCode MCP settings, add a server with the same command / args / env as above.

Environment

Variable	Default	Description
DERO_DAEMON_URL	http://82.65.143.182:10102	Daemon base URL (no /json_rpc required). Set to http://127.0.0.1:10102 for a local daemon.
DERO_DOCS_ROOT	bundled index	Optional dev override: path to a local dero-docs clone to index live MDX instead of the shipped bundle.

Maintainer: bundled docs

Docs tools read from data/docs-index.json, committed in this repo and shipped with the npm package. Rebuild the index when dero-docs changes:

npm run release:docs-check
git add data/docs-index.json && git commit -m "Refresh bundled docs index."

Or run Refresh docs bundle under Actions to open a PR. Pushes to dero-docs main can trigger that workflow via repository_dispatch when MCP_DOCS_SYNC_TOKEN is configured on the docs repo.

After merging a bundle update: bump the patch version in package.json and server.json, then npm publish --otp=... and mcp-publisher publish.

Testing

# Check daemon connectivity
npm run doctor

# MCP surface contract checks (tools/resources/prompts + error probe)
npm run smoke:mcp

# Docs retrieval checks (bundled index — no clone required)
npm run smoke:docs

# Run flow tests (10 RPC checks)
npm run test:flows

# Typecheck
npm run typecheck

Flow tests run against the default public RPC. Set DERO_DAEMON_URL to test against your own daemon.

CI runs on every push and PR — see .github/workflows/ci.yml.

Official MCP Registry

Publish flow (maintainers):

mcp-publisher validate
mcp-publisher login github
mcp-publisher publish

Verify listing:

curl "https://registry.modelcontextprotocol.io/v0.1/servers?search=io.github.DHEBP/dero-mcp-server"

MCP Surface

• Tools (20): daemon read/analysis methods + docs retrieval (dero_docs_search, dero_docs_get_page, dero_docs_list)
• Resources (3): dero://mcp/server-info, dero://mcp/safety-boundary, dero://mcp/example-flows
• Prompts (3): network_health_check, inspect_smart_contract, trace_transaction

Error Contract

When a tool call fails, the server returns a structured error payload in tool content:

{
  "ok": false,
  "tool": "dero_get_sc",
  "_meta": {
    "error": {
      "code": "RPC_UNREACHABLE",
      "hint": "Confirm daemon is running and reachable, then rerun `npm run doctor`.",
      "retryable": true,
      "raw": "fetch failed"
    }
  }
}

Common code values:

• INVALID_INPUT
• RPC_INVALID_PARAMS
• RPC_METHOD_NOT_FOUND
• RPC_HTTP_ERROR
• RPC_UNREACHABLE
• RPC_INVALID_RESPONSE
• TOOL_EXECUTION_ERROR

Roadmap

• Optional wallet-RPC tools behind DERO_ENABLE_WALLET_RPC=1 + separate URL.
• Streamable HTTP transport for hosted MCP.
• Stricter typing / OpenAPI-derived tool schemas.

License

MIT