AgentRPC MCP
AI Agent RPC Tool for Cross-Network and Cross-Language Boundaries
Install & Use
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This Skill addresses the challenge of AI agents calling functions across network and language boundaries. In practical development, when backend services are deployed in private VPCs, Kubernetes clusters, or multi-cloud environments, AI agents often cannot directly access these services, limiting their functionality. AgentRPC enables AI agents to securely call functions written in any language and located in any network through a unified RPC interface, without requiring open ports or changes to network architecture, by registering functions.
Usage is straightforward: simply import the AgentRPC SDK (supporting TypeScript, Go, Python) into your target service, register your functions, and set an API key. The AgentRPC cloud platform will then host these functions and generate an MCP-compatible server address. You can add this server to the MCP configuration in tools like Claude Desktop or Cursor, and then invoke registered functions via natural language instructions, such as "query user orders in the database" or "execute a Python script for data analysis."
It is ideal for teams or individuals needing to integrate internal services into AI agents. This is especially relevant for backend developers, agent developers, and DevOps engineers already using AI programming tools like Claude or Cursor, who want their AI assistants to directly interact with private APIs, databases, or microservices. It also suits scenarios requiring cross-language function calls (e.g., a Go service calling a Python function).
When registering functions, it is recommended to split them into fine-grained operations to avoid exposing overly permissive actions. Additionally, pay attention to function timeouts and error handling, as AgentRPC's long-polling mechanism supports long-running operations but requires functions to return results correctly. Furthermore, the MCP server depends on a Node.js environment; Node.js v18 or above is recommended for optimal compatibility.
Key Features
Unlike gRPC, AgentRPC does not require defining proto files or generating stub code—functions are registered directly via the SDK. Compared to native MCP SDKs, it provides multi-language SDKs and a hosted RPC server, eliminating the need to build MCP infrastructure yourself, and includes built-in health monitoring and automatic failover.
Limitations
Requires dependency on the AgentRPC cloud platform (api.agentrpc.com). Currently supports TypeScript, Go, Python, and .NET (coming soon); Java/C++ are not supported. The MCP server requires Node.js v18 or above.
FAQ
How do I install AgentRPC?
Global installation: npm install -g agentrpc; or run the MCP server directly using npx agentrpc mcp.
How do I configure Claude Desktop to use AgentRPC?
Add an mcpServers configuration in claude_desktop_config.json, with command set to 'npx -y agentrpc mcp' and AGENTRPC_API_SECRET set in env.
Installation guide for AI assistants
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Visit https://321skill.com/skills/agentrpc-mcp/raw/index.md to read the original Skill definition (Markdown format) for AgentRPC MCP, and install it according to the instructions.
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