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go-utcp
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go-utcp

Active·★ 125·MPL-2.0·Updated 2026-08-27

The Universal Tool Calling Protocol (UTCP) is a modern, flexible, and scalable standard designed for defining and interacting with tools across various communication protocols. The `go-utcp` library provides a robust Go implementation, emphasizing ease of use, broad interoperability with diverse provider types, and features like built-in transports and OpenAPI conversion.

#Go Library#Tool Calling Protocol#API Integration#Interoperability#Microservices#LLM Tools#Transports#Scalability
$ Install
$ go get github.com/universal-tool-calling-protocol/go-utcp@latest
↗ Visit site★ GitHub
01

Features

01Built-in transports for various protocols including HTTP, CLI, WebSockets, gRPC, and UDP.
02Support for variable substitution via environment variables or `.env` files using `UtcpDotEnv`.
03In-memory repository for runtime discovery and storage of providers and tools.
04Utility for converting OpenAPI definitions into UTCP manuals.
05CodeMode plugin enables LLMs to execute dynamic, multi-step tool workflows with Go-like code.
02

Compatibility

Go
Runtime
Verified via docs
HTTP
Transport
Verified via docs
gRPC
Transport
Verified via docs
OpenAPI
API Definition
Verified via docs
LLM
Integration
Verified via docs
03

Quick start

1
$ go get github.com/universal-tool-calling-protocol/go-utcp@latest
04

Use cases

↳Standardized interaction with diverse tool-based services.
↳Integration of existing services (HTTP, gRPC, CLI) into a unified tool ecosystem.
↳Empowering LLMs to execute complex, multi-step tool workflows programmatically.
↳Automated conversion of OpenAPI definitions for UTCP tool integration.
05

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On this page
01Features02Compatibility03Quick start04Use cases05Alternatives
universal-tool-calling-protocol /
go-utcp
↗

Official Go implementation of the UTCP

125MPL-2.0
Last commit2mo ago
StatusActive
CategoryAPI Integration
Links
Documentation↗Discussion↗Issues↗Releases↗
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