{"id":30217359,"url":"https://github.com/universal-tool-calling-protocol/utcp-specification","last_synced_at":"2026-01-24T16:22:41.679Z","repository":{"id":302605782,"uuid":"1012672170","full_name":"universal-tool-calling-protocol/utcp-specification","owner":"universal-tool-calling-protocol","description":"The specification for the Universal Tool Calling Protocol","archived":false,"fork":false,"pushed_at":"2026-01-20T06:52:46.000Z","size":3530,"stargazers_count":281,"open_issues_count":9,"forks_count":18,"subscribers_count":3,"default_branch":"main","last_synced_at":"2026-01-20T15:03:16.911Z","etag":null,"topics":["ai","ai-agent-tools","documentation","mcp","protocol","specification","utcp"],"latest_commit_sha":null,"homepage":"https://www.utcp.io/","language":"TypeScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/universal-tool-calling-protocol.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":"docs/security.md","support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2025-07-02T17:37:41.000Z","updated_at":"2026-01-20T06:52:50.000Z","dependencies_parsed_at":"2025-08-04T16:07:36.415Z","dependency_job_id":"e9e749df-7e4a-4ba8-99bb-0d7da536fed7","html_url":"https://github.com/universal-tool-calling-protocol/utcp-specification","commit_stats":null,"previous_names":["universal-tool-calling-protocol/utcp-specification"],"tags_count":0,"template":false,"template_full_name":"just-the-docs/just-the-docs-template","purl":"pkg:github/universal-tool-calling-protocol/utcp-specification","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/universal-tool-calling-protocol%2Futcp-specification","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/universal-tool-calling-protocol%2Futcp-specification/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/universal-tool-calling-protocol%2Futcp-specification/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/universal-tool-calling-protocol%2Futcp-specification/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/universal-tool-calling-protocol","download_url":"https://codeload.github.com/universal-tool-calling-protocol/utcp-specification/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/universal-tool-calling-protocol%2Futcp-specification/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28731225,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-24T10:24:43.181Z","status":"ssl_error","status_checked_at":"2026-01-24T10:24:36.112Z","response_time":89,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["ai","ai-agent-tools","documentation","mcp","protocol","specification","utcp"],"created_at":"2025-08-14T05:01:49.956Z","updated_at":"2026-01-24T16:22:41.672Z","avatar_url":"https://github.com/universal-tool-calling-protocol.png","language":"TypeScript","funding_links":[],"categories":["📚 Projects (1974 total)","TypeScript","References"],"sub_categories":["MCP Servers"],"readme":"# Universal Tool Calling Protocol (UTCP) Specification\r\n\r\nThis repository contains the official specification documentation for the Universal Tool Calling Protocol (UTCP). UTCP is a modern, flexible, and scalable standard for defining and interacting with tools across various communication protocols.\r\n\r\n## What is UTCP?\r\n\r\nUTCP provides a standardized way for AI systems and other clients to discover and call tools from different providers, regardless of the underlying protocol used (HTTP, WebSocket, CLI, etc.). This specification defines:\r\n\r\n- Tool discovery mechanisms\r\n- Tool call formats and templates\r\n- Plugin-based architecture for extensibility\r\n- Enhanced authentication methods\r\n- Comprehensive error handling\r\n- Response processing and validation\r\n\r\n## Version 1.0 Features\r\n\r\nUTCP v1.0 introduces significant architectural improvements:\r\n\r\n- **Plugin Architecture**: Core functionality split into pluggable components for better modularity\r\n- **Enhanced Data Models**: Improved Pydantic models with comprehensive validation\r\n- **Multiple Protocol Support**: HTTP, CLI, WebSocket, Text, and MCP protocols via plugins\r\n- **Advanced Authentication**: Expanded authentication options including API key, OAuth, and custom auth\r\n- **Better Error Handling**: Specific exception types for different error scenarios\r\n- **Performance Optimizations**: Optimized client and protocol implementations\r\n- **Async/Await Support**: Full asynchronous client interface for better performance\r\n\r\n## Contributing to the Specification\r\n\r\nWe welcome contributions to the UTCP specification! Here's how you can contribute:\r\n\r\n1. **Fork the repository**: Create your own fork of the specification repository\r\n2. **Make your changes**: Update or add documentation as needed\r\n3. **Submit a pull request**: Open a PR with your changes for review\r\n4. **Participate in discussions**: Join the conversation about proposed changes\r\n\r\nWhen contributing, please follow these guidelines:\r\n\r\n- Ensure your changes align with the overall vision and goals of UTCP\r\n- Follow the established documentation structure and formatting\r\n- Include examples when adding new features or concepts\r\n- Update relevant sections to maintain consistency across the documentation\r\n\r\n## Installation and Usage\r\n\r\n### Core Package Installation\r\n\r\n```bash\r\n# Install the core UTCP package\r\npip install utcp\r\n\r\n# Install protocol plugins as needed\r\npip install utcp-http utcp-cli utcp-websocket utcp-text utcp-mcp\r\n```\r\n\r\n### Migration from v0.1 to v1.0\r\n\r\nIf you're upgrading from UTCP v0.1, please see our comprehensive [Migration Guide](docs/migration-v0.1-to-v1.0.md) which covers:\r\n\r\n- Breaking changes and architectural improvements\r\n- Step-by-step migration instructions\r\n- Configuration and manual format updates\r\n- Common migration issues and solutions\r\n\r\n## Building the Documentation Locally\r\n\r\n### Prerequisites\r\n\r\nTo build and preview the documentation site locally, you'll need:\r\n\r\n- Node.js version 18.0 or higher\r\n- npm or yarn package manager\r\n\r\n### Setup\r\n\r\n1. Clone the repository:\r\n   ```bash\r\n   git clone https://github.com/universal-tool-calling-protocol/utcp-specification.git\r\n   cd utcp-specification\r\n   ```\r\n\r\n2. Install dependencies:\r\n   ```bash\r\n   npm install\r\n   ```\r\n\r\n### Running the Documentation Site\r\n\r\nTo build and serve the site locally:\r\n\r\n```bash\r\nnpm start\r\n```\r\n\r\nThis will start a local development server at `http://localhost:3000` where you can preview the documentation.\r\n\r\n## Documentation Structure\r\n\r\nThe UTCP documentation is organized as follows:\r\n\r\n- `docs/`\r\n  - `index.md`: Homepage and introduction to UTCP\r\n  - `introduction.md`: Detailed introduction and core concepts\r\n  - `for-tool-providers.md`: Guide for implementing tool providers\r\n  - `for-tool-callers.md`: Guide for implementing tool callers\r\n  - `migration-v0.1-to-v1.0.md`: Comprehensive migration guide from v0.1 to v1.0\r\n  - `protocols/`: Documentation for each protocol type\r\n    - `http.md`: HTTP protocol implementation\r\n    - `websocket.md`: WebSocket protocol implementation\r\n    - `cli.md`: CLI protocol implementation\r\n    - `sse.md`: Server-Sent Events protocol implementation\r\n    - `text.md`: Text protocol implementation\r\n    - `mcp.md`: Model Context Protocol implementation\r\n  - `api/`: API reference documentation\r\n    - `core/`: Core API documentation\r\n    - `plugins/`: Plugin API documentation\r\n  - `implementation.md`: Implementation guidelines and best practices\r\n- `versioned_docs/`: Version-specific documentation for backwards compatibility\r\n\r\n## Working with the Specification\r\n\r\n### Modifying the Documentation\r\n\r\nThe documentation is built with Docusaurus and written in Markdown format. When making changes:\r\n\r\n1. Ensure your Markdown follows the established style\r\n2. Preview changes locally before submitting PRs\r\n3. Keep examples up-to-date with the latest specification (v1.0)\r\n4. Update navigation items in `sidebars.ts` if adding new pages\r\n5. Consider version compatibility when making breaking changes\r\n\r\n### File Organization\r\n\r\nWhen adding new documentation:\r\n\r\n- Place protocol-specific documentation in `docs/protocols/`\r\n- Place API documentation in `docs/api/core/` or `docs/api/plugins/`\r\n- Use consistent front matter with appropriate navigation ordering\r\n- Include tags for improved searchability\r\n- Consider versioning for breaking changes using `versioned_docs/`\r\n\r\n## Version Control\r\n\r\nThe UTCP specification follows semantic versioning:\r\n\r\n- Major versions (1.0, 2.0): Breaking changes to the protocol\r\n- Minor versions (1.1, 1.2): New features added in a backward-compatible manner\r\n- Patch versions (1.0.1, 1.0.2): Backward-compatible bug fixes and clarifications\r\n\r\n## License\r\n\r\nThis specification is distributed under the Mozilla Public License 2.0 (MPL-2.0).\r\n\r\n## Additional Resources\r\n\r\n- [UTCP GitHub Organization](https://github.com/universal-tool-calling-protocol)\r\n- [UTCP Website](https://utcp.io)\r\n- [Reference Implementations](https://github.com/universal-tool-calling-protocol/python-utcp)\r\n- [Community Discussions](https://github.com/universal-tool-calling-protocol/utcp-specification/discussions)\r\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Funiversal-tool-calling-protocol%2Futcp-specification","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Funiversal-tool-calling-protocol%2Futcp-specification","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Funiversal-tool-calling-protocol%2Futcp-specification/lists"}