{"data":{"slug":"ianarawjo-chainforge","name":"ChainForge","tagline":"An open-source visual programming environment for battle-testing prompts to LLMs.","github_url":"https://github.com/ianarawjo/ChainForge","owner":"ianarawjo","repo":"ChainForge","owner_avatar_url":"https://avatars.githubusercontent.com/u/5251713?v=4","primary_language":"TypeScript","stars":3030,"forks":257,"topics":["ai","evaluation","large-language-models","llmops","llms","prompt-engineering"],"archived":false,"github_pushed_at":"2026-09-19T14:53:23+00:00","maintenance_label":"Very active","stars_delta_30d":3,"url":"https://www.graphcanon.com/tools/ianarawjo-chainforge","markdown_url":"https://www.graphcanon.com/tools/ianarawjo-chainforge.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/ianarawjo-chainforge","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=ianarawjo-chainforge","description":"An open-source visual programming environment for battle-testing prompts to LLMs.","homepage_url":"https://chainforge.ai/docs","license":"MIT","open_issues":70,"watchers":32,"ai_summary":"ChainForge provides a web-based interface to create, test and evaluate large language model interactions through a visual programming approach. It supports local installation and running via Docker with extensive feature sets beyond the limited web version.","readme_excerpt":"# Installation\n\nYou can install ChainForge locally, or try it out on the web at **https://chainforge.ai/play/**. The web version of ChainForge has a limited feature set. In a locally installed version you can load API keys automatically from environment variables, write Python code to evaluate LLM responses, or query locally-run models hosted via Ollama.\n\nTo install Chainforge on your machine, make sure you have Python 3.10 or higher, then run\n\n```bash\npip install chainforge\n```\n\nOnce installed, do\n\n```bash\nchainforge serve\n```\n\nOpen [localhost:8000](http://localhost:8000/) in a Google Chrome, Firefox, Microsoft Edge, or Brave browser.\n\n> **Security:** ChainForge can run Python code on your computer, so its server only accepts requests from ChainForge's own page. It refuses requests from other websites, and requests addressed to any name other than `localhost` or `127.0.0.1`. If you reach ChainForge by another name or address (on a server, say, or from another machine), add it: `chainforge serve --host 0.0.0.0 --allowed-hosts your.server.name`.\n\n---\n\n## Run using Docker\n**Quick start with Docker Compose (recommended):**\n\n```bash\ndocker compose up -d\n```\nAccess ChainForge at http://localhost:8000\n\nTo open it from another machine, tell ChainForge the name or IP address you use, e.g. `-e CHAINFORGE_ALLOWED_HOSTS=your.server.name`. Requests addressed to other names are refused.\n\nFor detailed Docker documentation including architecture support, environment variables, and CI/CD setup, see [docker/README.md](docker/README.md).\n\n---\n\n# License\n\nChainForge is released under the MIT License.","github_created_at":"2023-03-26T16:55:33+00:00","created_at":"2026-07-07T17:42:25.395661+00:00","updated_at":"2026-09-20T05:53:44.776503+00:00","categories":[{"slug":"evaluation-observability","name":"Evaluation & Observability","url":"https://www.graphcanon.com/categories/evaluation-observability","markdown_url":"https://www.graphcanon.com/categories/evaluation-observability.md","api_url":"https://www.graphcanon.com/api/graphcanon/categories/evaluation-observability"},{"slug":"llm-frameworks","name":"LLM Frameworks","url":"https://www.graphcanon.com/categories/llm-frameworks","markdown_url":"https://www.graphcanon.com/categories/llm-frameworks.md","api_url":"https://www.graphcanon.com/api/graphcanon/categories/llm-frameworks"}],"tags":[{"slug":"ai","name":"ai"},{"slug":"evaluation","name":"evaluation"},{"slug":"large-language-models","name":"large-language-models"},{"slug":"llmops","name":"llmops"},{"slug":"prompt-engineering","name":"prompt-engineering"}],"trust":{"provenance":{"is_fork":false,"github_id":619234173,"owner_type":"User","methodology":"github_public_v1","parent_repo":null,"near_duplicate_slugs":[]},"computed_at":"2026-09-20T05:53:42.866Z","maintenance":{"label":"Very active","score":96,"methodology":"github_public_v1","releases_90d":1,"days_since_push":0,"last_release_at":"2026-09-16T22:14:21Z","stars_delta_30d":3,"open_issues_delta_30d":0},"security_summary":{"status":"no_lockfile","scanner":null,"low_count":0,"high_count":0,"last_scan_at":"2026-07-11T11:20:57.375Z","medium_count":0,"scan_profile":"none","critical_count":0}},"capability_facts":{"scan":{"source":"repo_scan","observed_at":"2026-09-20T05:53:43.875Z"},"deploy":{"source":"dockerfile:docker-compose.yml","self_host":true,"observed_at":"2026-09-20T05:53:43.875Z","managed_saas":false},"languages":{"value":["typescript"],"source":"github.language","observed_at":"2026-09-20T05:53:43.875Z"},"has_docker":{"value":true,"source":"dockerfile:docker-compose.yml","observed_at":"2026-09-20T05:53:43.875Z"},"license_spdx":{"value":"MIT","source":"github.license","observed_at":"2026-09-20T05:53:43.875Z"}},"decision_facts":{"hosting":null,"pricing":null,"requirements":null,"constraints":null,"when_to_use":["Need extensive features beyond web limitations","Require automatic loading of API keys from environment variables"],"when_not_to_use":["Looking for a solution without local setup or Docker support","Prefer not managing API keys via environment variable configuration"],"source":"enrich:decision_facts","observed_at":"2026-07-12T13:58:26.817Z"},"constraint_facets":null,"decision_summary":[{"label":"Adopt for","value":"Web-based visual programming tool for prompt testing on LLMs; supports local installation and Docker for advanced feature access."}]}}