{"adoption": {"forks": 230, "observed_at": "2026-08-28T04:07:22.210188+00:00", "stars": 2798}, "canonical_url": "https://ross.abutalabs.com/products/mnemosyne", "card": {"archived": false, "artifact_type": "library", "description": "Zero-cloud AI memory that works everywhere. SQLite-backed. One pure-Python dependency.", "domain": ["artificial-intelligence", "large-language-models", "developer-tools", "privacy", "self-hosted"], "enriched": true, "function": ["vector-database", "database", "rag", "mcp", "search-engine", "sdk", "cli"], "health_score": 100, "homepage": "https://mnemosyne.site", "language": "Python", "license": "MIT", "license_family": "permissive", "maturity": "active", "member_repos": ["mnemosyne-oss/mnemosyne"], "name": "mnemosyne-oss/mnemosyne", "platform": ["python", "cli", "cross-platform", "self-hosted"], "pushed_at": "2026-08-26T20:07:03+00:00", "repo": "mnemosyne-oss/mnemosyne", "stars": 2798, "tags": ["agent-memory", "sqlite", "local-first", "long-term-memory", "mcp-server", "hermes-agent", "vector-search", "fts5", "privacy-first", "zero-cloud", "ai-agents", "retrieval-augmented-generation"], "topics": ["agents", "ai", "hermes", "hermes-agent", "ml", "nousresearch"], "urls": [], "use_cases": ["give my ai agent persistent memory", "store and recall user preferences across chat sessions", "add long-term memory to claude code or cursor", "local agent memory without cloud services", "semantic search over agent conversation history", "mcp memory server for coding assistants", "remember facts across agent runs in python"], "what_it_is": "Mnemosyne is a local-first, SQLite-backed memory layer for AI agents, exposing remember/recall APIs via a Python SDK and 30+ tools over MCP. It combines vector (sqlite-vec) and full-text (FTS5) hybrid retrieval with tiered memory architecture, requiring no cloud services or external dependencies.", "when_to_avoid": ["you need multi-user, horizontally scaled shared memory across servers", "you require a managed cloud memory service with team sync built in", "you need heavy-duty vector search over millions of high-dimensional embeddings", "your stack is not Python and does not support MCP"], "when_to_choose": ["you need persistent, private agent memory that works fully offline", "you want a single pip install with zero external services or Docker", "your agent speaks MCP (Claude Code, Cursor, Codex, Hermes, OpenWebUI)", "you need fast sub-100ms hybrid vector + keyword retrieval on a single SQLite file"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/mnemosyne", "repo": "mnemosyne-oss/mnemosyne", "role": "main", "score": 80}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:07:22.210188+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-29T18:49:04.311538+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "8b8f77c584424fa57260fdd80c916fd42163113e7f8ff3a2a1e157c1d2bfec49", "fetched_at": "2026-08-28T04:07:22.210188+00:00", "kind": "readme", "missing": false, "url": "https://github.com/mnemosyne-oss/mnemosyne"}, {"content_hash": "bee3d292c4cfa047d0b12d93ab054b7efd78a5349bcfcb0d6ba284cc4aa3bee5", "fetched_at": "2026-08-29T09:54:53.822354+00:00", "kind": "homepage", "missing": false, "url": "https://mnemosyne.site"}, {"content_hash": "665a486c9dbeb5877305357170d1d2fa8bbc362d0d8c964ef22f01849c728978", "fetched_at": "2026-08-29T09:54:53.834324+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/install"}, {"content_hash": "687bf0b3f137ed6eb72477853f442ee0b77e47d8771defb90c5c94c5b8b440a4", "fetched_at": "2026-08-29T09:54:53.837594+00:00", "kind": "site_page", "missing": false, "url": "https://docs.mnemosyne.site"}, {"content_hash": "82b3fbd3475f86cbf2878672772c247eaa8016c0a52620d732ff004554d83910", "fetched_at": "2026-08-29T09:54:53.832334+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en"}, {"content_hash": "bc018702c0104120e311d93b37b1e5c33a988731a438ee407525d2a7b7c21906", "fetched_at": "2026-08-29T09:54:53.835954+00:00", "kind": "site_page", "missing": false, "url": "https://mnemosyne.site/en/faq"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 99, "longevity": 10, "rhythm": 95}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["young"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 150, "days_push": 7, "days_rel": 34, "gap_med": 1.0, "n_releases_24m": 43}, "score": 80, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}