{"adoption": {"forks": 341, "observed_at": "2026-08-28T04:09:31.768979+00:00", "stars": 5864}, "canonical_url": "https://ross.abutalabs.com/products/ell", "card": {"archived": false, "artifact_type": "library", "description": "A language model programming library.", "domain": ["large-language-models", "artificial-intelligence", "developer-tools"], "enriched": true, "function": ["prompt-engineering", "llm-inference", "monitoring", "version-control"], "health_score": 35, "homepage": "http://docs.ell.so/", "language": "Python", "license": "MIT", "license_family": "permissive", "maturity": "active", "member_repos": ["MadcowD/ell"], "name": "MadcowD/ell", "platform": ["python", "cross-platform", "cli"], "pushed_at": "2025-06-05T21:41:57+00:00", "repo": "MadcowD/ell", "stars": 5864, "tags": ["llm", "prompts-as-functions", "prompt-versioning", "ell-studio", "multimodal", "openai", "anthropic", "natural-language-processing"], "topics": ["ai", "prompt-engineering"], "urls": [], "use_cases": ["write prompts as python functions for llm calls", "version and track prompt changes over time", "monitor and visualize llm calls locally", "build multimodal llm applications with images and audio", "iterate on prompt engineering like an optimization process", "manage prompt regressions with a local store"], "what_it_is": "ell is a lightweight Python library for language model programming that treats prompts as functions (language model programs) rather than strings. It provides automatic prompt versioning, serialization, and a local monitoring/visualization tool called Ell Studio.", "when_to_avoid": ["you need a full LLM application framework with agents and chains", "you require non-Python languages", "you need hosted team collaboration for prompt management", "you only make simple one-off API calls without iteration"], "when_to_choose": ["you want prompts defined as typed, reusable Python functions", "you need automatic versioning and commit history for prompts", "you want a local, open-source alternative to prompt monitoring SaaS", "you work with OpenAI or Anthropic models in Python"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/ell", "repo": "MadcowD/ell", "role": "main", "score": 34}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:09:31.768979+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T17:51:37.395822+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "e892af64361340a3c372dc5a57c30f8d2d38b320f6586bee778c810c37e9a5c2", "fetched_at": "2026-08-28T04:09:31.768979+00:00", "kind": "readme", "missing": false, "url": "https://github.com/MadcowD/ell"}, {"content_hash": "7db0e8cd21a71b9022a00718d9e244ede670b65fcea630b877f2529bb9896dbe", "fetched_at": "2026-08-29T08:47:09.995839+00:00", "kind": "homepage", "missing": false, "url": "http://docs.ell.so/"}, {"content_hash": "87c29f1e86750cc042c7e9fc45911355ab47e994f2fb7ae1f921e47d13ea0afa", "fetched_at": "2026-08-29T08:47:10.004866+00:00", "kind": "site_page", "missing": false, "url": "https://docs.ell.so/installation.html"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 25, "longevity": 55, "rhythm": 35}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_releases"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 773, "days_push": 454, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 34, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}