rig-mcp-server

A Rust example MCP (Model Context Protocol) server using SSE transport, with a simple registered tool (Add) and a demo client that initializes and lists tools, then integrates with a RIG agent to prompt an LLM using the MCP tool.

Evaluated Apr 04, 2026 (16d ago)
Repo ↗ DevTools mcp-server rust sse agent-integration rig inspector
⚙ Agent Friendliness
34
/ 100
Can an agent use this?
🔒 Security
24
/ 100
Is it safe for agents?
⚡ Reliability
22
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
55
Documentation
45
Error Messages
0
Auth Simplicity
20
Rate Limits
0

🔒 Security

TLS Enforcement
20
Auth Strength
5
Scope Granularity
0
Dep. Hygiene
45
Secret Handling
60

No authN/authZ is described for the MCP SSE endpoint. The example uses plain localhost URLs in README; TLS and transport security are not discussed. README does not mention secret handling patterns, rate limiting, or input validation beyond tool parameters.

⚡ Reliability

Uptime/SLA
0
Version Stability
30
Breaking Changes
40
Error Recovery
20
AF Security Reliability

Best When

You want a lightweight Rust MCP SSE example or prototype tool-calling integration for an LLM workflow.

Avoid When

You need strong built-in security controls, formal API documentation, or production-grade operational guarantees out of the box.

Use Cases

  • • Building MCP servers in Rust with SSE transport
  • • Providing tool/function calling via MCP for LLM agents
  • • Testing and inspecting MCP servers using the MCP Inspector web UI
  • • Demoing end-to-end integration between MCP tools and a RIG agent

Not For

  • • Production deployments requiring authentication/authorization, unless additional security is implemented
  • • Use cases needing standardized REST/GraphQL/OpenAPI contracts
  • • Highly reliable, documented operational services without further hardening

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
Yes ↗
SDK
No
Webhooks
No

Authentication

OAuth: No Scopes: No

The README does not describe any authentication/authorization mechanism for the MCP SSE endpoint or the inspector connection.

Pricing

Free tier: No
Requires CC: No

Appears to be a self-hosted example project; no pricing details provided.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • ⚠ No authentication described; agents/integrations may inadvertently expose the SSE endpoint if deployed publicly
  • ⚠ Example tool is simple (Add); real tools may require stronger validation, timeouts, and error mapping

Alternatives

Other MCP transports (if supported by your stack) or different MCP server implementations Direct tool/function calling via the LLM SDK without MCP (for simpler scenarios) Using an OpenAPI-first microservice + agent connector (when REST contracts are required)

Full Evaluation Report

Comprehensive deep-dive: security analysis, reliability audit, agent experience review, cost modeling, competitive positioning, and improvement roadmap for rig-mcp-server.

AI-powered analysis · PDF + markdown · Delivered within 30 minutes

$99

Package Brief

Quick verdict, integration guide, cost projections, gotchas with workarounds, and alternatives comparison.

Delivered within 10 minutes

$3

Score Monitoring

Get alerted when this package's AF, security, or reliability scores change significantly. Stay ahead of regressions.

Continuous monitoring

$3/mo
API endpoint ↗ Agent guide ↗ Report inaccuracy

Scores are editorial opinions as of 2026-04-04.

8642
Packages Evaluated
17761
Need Evaluation
586
Need Re-evaluation
♥
Community Powered