Vector Database
Vector DatabaseVector database
Providers using this tag (25)
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 1 Complete, well-documented, and agent-ready
Strong 2 Solid coverage with minor gaps
Developing 8 Usable, with meaningful gaps to close
Thin 10 Limited public surface area
Emerging 4 Early or largely undocumented
APIs with this tag (6)
Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →
Strong 1 Solid coverage with minor gaps
Developing 2 Usable, with meaningful gaps to close
Thin 2 Limited public surface area
Emerging 1 Early or largely undocumented
Companies reaching this through an API (1)
These companies publish an API, specification or operation carrying “Vector Database” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.
Score breakdown
Related tags
Where this tag comes from
Cohort brief
Auto-generatedThe 25 providers in the APIs.io catalog tagged Vector Database, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.
| Facet | This cohort | Catalog | Difference | Scored |
|---|---|---|---|---|
| Developer Ergonomics | 45.4 | 23.4 | +22 | 25 |
| Contract Quality | 40.9 | 19.8 | +21.1 | 25 |
| Operational Transparency | 31.7 | 14 | +17.7 | 25 |
| Access Clarity | 39.2 | 26.5 | +12.7 | 25 |
| Discoverability | 69.2 | 61.2 | +8 | 25 |
| Contract Governance | 8.6 | 6.4 | +2.2 | 25 |
A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.
| Artifact | This cohort | Catalog | Difference |
|---|---|---|---|
| MCP server (any) | 28% | 10% | +18 |
| MCP server (first-party) | 36% | 13% | +23 |
| Agent Skills | 0% | 0% | 0 |
| OAuth scopes | 12% | 11% | +1 |
| Security | 100% | 97% | +3 |
| Arazzo workflows | 4% | 2% | +2 |
| Governance rules | 20% | 14% | +6 |
mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.
- 1 Elastic Stack (ELK Stack) 76.7
- 2 Seekr 61.3
- 3 Mixedbread 58.1
- 4 IronCore Labs 52.6
- 5 Vespa 52.6
- 6 LanceDB 49.6
- 7 Chroma 49.3
- 8 Weaviate 48.2
- 9 DataStax 46.7
- 10 RAGFlow 45.6
- 1 Elastic Stack (ELK Stack) 48.8
- 2 Mixedbread 35.9
- 3 Seekr 35.8
- 4 Weaviate 34.3
- 5 Chroma 34.2
- 6 Upstash 25.9
- 7 MyScale 24.8
- 8 IronCore Labs 24.6
- 9 Vespa 24.5
- 10 LanceDB 24.4
Work with this as data
Every tag here is available over the APIs.io API and to AI agents over MCP.