Comparison
nucliadb vs memsearch
Verdict
Pick nucliadb if nucliaDB offers AI-driven semantic search tailored for unstructured data with RAG capabilities, built using Python and Rust; pick memsearch if memsearch is a hybrid memory management solution for AI agents with Markdown and Milvus backing, ideal for rich semantic search and long-term data storage.
Markdown twin · nucliadb alternatives · memsearch alternatives
GraphCanon updated Sep 20, 2026
5views this month
vs
Trust & integrity
| Signal | nucliadb | memsearch |
|---|---|---|
| Maintenance | Very active (1d since push) As of Sep 20, 2026 · github_public_v1 | Very active (0d since push) As of Sep 20, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- nucliadb
- NucliaDB, The AI Search database for RAG
- memsearch
- A persistent, unified memory layer for all your AI agents backed by Markdown and Milvus.
Stars
- nucliadb
- 721
- memsearch
- 2.6k
Forks
- nucliadb
- 58
- memsearch
- 253
Open issues
- nucliadb
- 3
- memsearch
- 254
Language
- nucliadb
- Python
- memsearch
- Python
Adopt for
- nucliadb
- NucliaDB offers AI-driven semantic search tailored for unstructured data with RAG capabilities, built using Python and Rust.
- memsearch
- memsearch is a hybrid memory management solution for AI agents with Markdown and Milvus backing, ideal for rich semantic search and long-term data storage.
Persona
- nucliadb
- -
- memsearch
- -
Runtime
- nucliadb
- -
- memsearch
- -
License
- nucliadb
- Other
- memsearch
- MIT
Last pushed
- nucliadb
- Sep 18, 2026
- memsearch
- Sep 20, 2026
Categories
- nucliadb
- Data & Retrieval, Vector Databases
- memsearch
- AI Agents, Data & Retrieval, Vector Databases
Trust and health
Days since push
- nucliadb
- 1d
- memsearch
- 0d
Open issues (now)
- nucliadb
- 3
- memsearch
- 254
Stars delta
- nucliadb
- +3 (30d)
- memsearch
- +291 (30d)
Open issues delta
- nucliadb
- -4 (30d)
- memsearch
- +23 (30d)
Full report
- nucliadb
- Trust report
- memsearch
- Trust report
Choose nucliadb if…
- License: nucliadb is Other, memsearch is MIT.
- Tags unique to nucliadb: ai-powered-search, database, language-model, machine-learning.
- nucliadb ships Docker support for self-hosted deployment.
- Need robust semantic indexing and language model integration in your search solutions
When NOT to use nucliadb
- Seeking a simpler NoSQL database without AI-powered features for unstructured data
- Looking for a solution exclusively focused on numeric or structured data processing
Choose memsearch if…
- License: memsearch is MIT, nucliadb is Other.
- Tags unique to memsearch: agent-memory, long-term-memory, milvus, semantic-search.
- Also covers AI Agents.
- When you need robust integration with AI agents like Claude Code or Codex
When NOT to use memsearch
- If your application doesn't require integration with specific AI agents like Claude Code
- In cases where only simple text data storage without semantic search is needed
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (nuclia/nucliadb) · observed Sep 20, 2026
- GitHub forks (nuclia/nucliadb) · observed Sep 20, 2026
- Last push (nuclia/nucliadb) · observed Sep 18, 2026
- License file (Other) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (zilliztech/memsearch) · observed Sep 20, 2026
- GitHub forks (zilliztech/memsearch) · observed Sep 20, 2026
- Last push (zilliztech/memsearch) · observed Sep 20, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: nucliadb 721 · memsearch 2.6k (synced Sep 20, 2026).
Common questions
- What is the difference between nucliadb and memsearch?
- nucliadb: NucliaDB, The AI Search database for RAG. memsearch: A persistent, unified memory layer for all your AI agents backed by Markdown and Milvus.. See the comparison table for live GitHub stats and shared categories.
- When should I choose nucliadb over memsearch?
- Choose nucliadb over memsearch when License: nucliadb is Other, memsearch is MIT; Tags unique to nucliadb: ai-powered-search, database, language-model, machine-learning; nucliadb ships Docker support for self-hosted deployment; Need robust semantic indexing and language model integration in your search solutions.
- When should I choose memsearch over nucliadb?
- Choose memsearch over nucliadb when License: memsearch is MIT, nucliadb is Other; Tags unique to memsearch: agent-memory, long-term-memory, milvus, semantic-search; Also covers AI Agents; When you need robust integration with AI agents like Claude Code or Codex.
- When should I avoid nucliadb?
- Seeking a simpler NoSQL database without AI-powered features for unstructured data Looking for a solution exclusively focused on numeric or structured data processing
- When should I avoid memsearch?
- If your application doesn't require integration with specific AI agents like Claude Code In cases where only simple text data storage without semantic search is needed
- Is nucliadb or memsearch more popular on GitHub?
- memsearch has more GitHub stars (2,627 vs 721). Stars measure visibility, not whether either tool fits your constraints.
- Are nucliadb and memsearch open source?
- Yes - both are open-source projects on GitHub (nucliadb: Other, memsearch: MIT).
- Where can I find alternatives to nucliadb or memsearch?
- GraphCanon lists graph-backed alternatives at nucliadb alternatives and memsearch alternatives (nucliadb markdown twin, memsearch markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, nucliadb or memsearch?
- nucliadb: Very active. memsearch: Very active. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for nucliadb and memsearch?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: nucliadb trust report; memsearch trust report.