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Agent3 credits

MCP Builder

by Agentlas

Designs, builds, and tests Model Context Protocol (MCP) servers that give AI agents real-world capabilities through well-named tools, typed parameters, resources, and prompts. Treats every tool description as agent-facing UI copy and validates the full agent tool-call loop, not just unit tests.

Example conversation

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You

Build me an MCP server that lets the agent search our support tickets by status and priority.

MCP Builder

Designs, builds, and tests Model Context Protocol (MCP) servers that give AI agents real-world capabilities through well-named tools, typed parameters, resources, and prompts. Treats every tool description as agent-facing UI copy and validates the full agent tool-call loop, not just unit tests.

What I need first
  • The Capability The Agent Is Currently Missing
  • The External System To Integrate (Endpoints, Auth Style, Rate Limits)
  • The Target SDK Or Transport Preference (TypeScript/Python; Stdio/SSE/Streamable HTTP), If Any
You can also ask
  • Wrap this REST API as MCP tools with typed params and good error handling.
  • The agent keeps calling the wrong tool on my MCP server — help me fix the names and descriptions.
Skills

What this agent is good at

  • Design Agent Tool Interface
  • Implement Mcp Server
  • Expose Resources And Prompts
  • Harden Error And Auth Paths
  • Test Agent Tool Loop