beginner⏱️ 14-24 minutes📅 Updated June 2026

Step-by-step guide to integrate AgentRPC MCP server with fast-agent. Includes register_function and call_remote_function.

AgentRPC + fast-agent: Complete MCP Integration

AgentRPC is a MCP server that Connect to any function, any language, across network boundaries using AgentRPC..

When integrated with fast-agent, you can:

  • Register functions across languages and networks
  • Call functions across network boundaries
  • List all registered functions across languages

This guide provides step-by-step instructions to set up AgentRPC in fast-agent, including configuration, examples, and troubleshooting.

What You'll Achieve

After completing this setup:

  • AgentRPC will be fully integrated and operational
  • You can use AgentRPC tools directly in fast-agent
  • All AgentRPC capabilities will be available for your workflows
  • Access to 4 different tools

Prerequisites

Before starting, ensure you have:

  • API secret from AgentRPC dashboard
  • fast-agent installed and configured
  • Compatible operating system (Node.js, Cross-platform, Edge Environments)

Installation

Step 1: Install AgentRPC

Configuration

Step 2: Configure fast-agent

  1. Open fast-agent settings
  2. Navigate to MCP server configuration
  3. Add AgentRPC server with appropriate settings
  4. Save and restart if needed

Examples

Once configured, you can use AgentRPC in fast-agent:

Multi-Language Microservices

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Ask fast-agent: "Call Python ML model from TypeScript app via Go API"

Expected Result: undefined

Cross-Cloud Function Calls

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Ask fast-agent: "Execute distributed data processing across three clouds"

Expected Result: undefined

Kubernetes Function Registry

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Ask fast-agent: "List available functions in production cluster"

Expected Result: undefined

Testing Your Setup

  1. Launch fast-agent
  2. Verify AgentRPC is available in the tools list
  3. Test basic AgentRPC functionality

Troubleshooting

Common Issues

Poor Performance

Symptoms: Slow startup, High memory usage, Slow tool execution

Cause: Suboptimal configuration or resource constraints

Solution:

  • Tune concurrency and pool size settings
  • Optimize MCP server performance
  • Check system resources and limits
  • Profile application for bottlenecks

Agent Crashes Under Load

Symptoms: Out of memory errors, Process crashes

Cause: Resource limits exceeded

Solution:

  • Reduce concurrency limits
  • Increase memory limits if possible
  • Implement graceful degradation
  • Monitor resource usage patterns

MCP Server Timeouts

Symptoms: Tool execution timeouts, Connection errors

Cause: Server overload or network issues

Solution:

  • Increase timeout values
  • Implement retry logic
  • Scale MCP server infrastructure
  • Use connection pooling and caching

AgentRPC not appearing in fast-agent

Symptoms: Server not listed, Tools not available

Cause: Configuration or installation issue

Solution:

  • Verify configuration syntax
  • Check AgentRPC installation
  • Restart fast-agent
  • Check logs for error messages

Next Steps

Now that AgentRPC is integrated with fast-agent:

  • Explore all AgentRPC capabilities through fast-agent
  • Check out other MCP servers that work with fast-agent
  • Join the MCP community for tips and support
  • Consider contributing to AgentRPC development

Need Help?

Related Resources

More Integrations

Explore other MCP servers that work with fast-agent

Need Help?

Join the MCP community for support and discussions

AgentRPC + fast-agent: MCP Setup Guide (2026)