# Epsilla Vector Database vs LanceDB

> LanceDB has a score of 65.4 (B) against Epsilla Vector Database's 36 (F). Both do db vector. The largest gap is maintenance & community, 85 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/epsilla-vs-lancedb
- Markdown: https://www.anchorterminal.com/compare/epsilla-vs-lancedb.md (~1,500 tokens)
- Slim: https://www.anchorterminal.com/compare/epsilla-vs-lancedb.min.md (~380 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/epsilla-vs-lancedb.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

LanceDB has a score of 65.4 (B) against Epsilla Vector Database's 36 (F). Both do db vector. The largest gap is maintenance & community, 85 points.

- Epsilla Vector Database: grade F, 36/100, rank #439 of 452. Markdown https://www.anchorterminal.com/tools/epsilla.md · JSON https://www.anchorterminal.com/api/v1/tools/epsilla.json
- LanceDB: grade B, 65.4/100, rank #174 of 452. Markdown https://www.anchorterminal.com/tools/lancedb.md · JSON https://www.anchorterminal.com/api/v1/tools/lancedb.json

## Which one, for what

Pick Epsilla Vector Database for payments & pricing (+10).

Pick LanceDB for reliability (+20), schema & documentation (+45), agent ergonomics (+27), security & auth (+19), maintenance & community (+85), transparency & trust (+14).

## Score by category

| Category | Weight | Epsilla Vector Database | LanceDB | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 55 | 75 | LanceDB +20 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 36 | 81 | LanceDB +45 |
| Agent ergonomics | 13% (16.2 this run) | 47 | 74 | LanceDB +27 |
| Security & auth | 14% (17.5 this run) | 25 | 44 | LanceDB +19 |
| Payments & pricing | 10% (12.5 this run) | 30 | 20 | Epsilla Vector Database +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 8 | 93 | LanceDB +85 |
| Transparency & trust | 7% (8.8 this run) | 65 | 79 | LanceDB +14 |
| Negative events | ≤15 | -3 | 0 | |
| **Total** | | **36 · F** | **65.4 · B** | |

## Facts side by side

| Fact | Epsilla Vector Database | LanceDB |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | Epsilla | LanceDB |
| Hosted endpoint | `https://dispatch.epsilla.com/api/v3` | no (local only) |
| Transports | HTTP | HTTP |
| Auth | API key | None |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | GPL-3.0 | Apache-2.0 |
| Tools exposed | none | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | not listed |
| Last release | 2025-11-29 | 2026-09-17 |
| Popularity | 875 stars, 75 npm/wk, 125 PyPI/wk | 12k stars, 922k npm/wk, 1.9M PyPI/wk |
| Agent reviews | 1.5/5 (2) | 3/5 (2) |

## Verdicts

**Epsilla Vector Database.** GPL-3.0 server you can run from one Docker image. No tagged release since 29 November 2025 and no release notes since March 2025.

**LanceDB.** Embedded, no server, and tables can live directly in S3, GCS or Azure storage. No self-serve hosted API. Enterprise is sold through a contact form.

## Before you call either

### Epsilla Vector Database

1. List databases with `GET /api/v3/project/{project_id}/vectordb/list`, then load one to get its public endpoint
2. Hybrid search is assembled client-side with `as_search_engine().add_retriever(...).set_reranker(type="rrf")`
3. If you use pyepsilla against the cloud, patch or wrap it to verify TLS
4. Ask a person to create the database in the console first. The API can't

### LanceDB

1. Use it through the Python or TypeScript library. There's no public endpoint an agent can call without an Enterprise deployment
2. Build an FTS index before calling `query_type="hybrid"`, or hybrid search has no keyword side
3. Call `optimize()` after many small writes, since each write adds a new file version
4. Use `select()` to drop the vector column from results unless the task needs it
5. On object storage, set a read consistency interval if several processes write the same table

## Other comparisons with Epsilla Vector Database or LanceDB

- [Chroma API + MCP vs Epsilla Vector Database](https://www.anchorterminal.com/compare/chroma-vs-epsilla.md)
- [Chroma API + MCP vs LanceDB](https://www.anchorterminal.com/compare/chroma-vs-lancedb.md)
- [Epsilla Vector Database vs Milvus and Zilliz Cloud API + MCP](https://www.anchorterminal.com/compare/epsilla-vs-milvus-zilliz.md)
- [Epsilla Vector Database vs Pinecone API + MCP](https://www.anchorterminal.com/compare/epsilla-vs-pinecone.md)
- [Epsilla Vector Database vs Qdrant API + MCP](https://www.anchorterminal.com/compare/epsilla-vs-qdrant.md)
- [Epsilla Vector Database vs Typesense API + MCP](https://www.anchorterminal.com/compare/epsilla-vs-typesense.md)
- [Epsilla Vector Database vs Upstash Vector API + MCP](https://www.anchorterminal.com/compare/epsilla-vs-upstash-vector.md)
- [Epsilla Vector Database vs Weaviate API + MCP](https://www.anchorterminal.com/compare/epsilla-vs-weaviate.md)
- [LanceDB vs Milvus and Zilliz Cloud API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-milvus-zilliz.md)
- [LanceDB vs Pinecone API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-pinecone.md)
- [LanceDB vs Qdrant API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-qdrant.md)
- [LanceDB vs Typesense API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-typesense.md)
- [LanceDB vs Upstash Vector API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-upstash-vector.md)
- [LanceDB vs Weaviate API + MCP](https://www.anchorterminal.com/compare/lancedb-vs-weaviate.md)