pgvector by pgvector (open source project)
Postgres extension adding vector columns and exact/approximate nearest-neighbor search (HNSW, IVFFlat).
Vector databases Open source
Price
Free (open source)
you pay only for the compute it runs on
Free tier
Open source
SDK downloads
—
npm pgvector · PyPI pgvector
Status
—
no public status page
Pricing
| Free tier | — |
|---|---|
| Cheapest paid plan | — |
| Usage price | — |
| Good to know | Free extension; available on most managed Postgres services (pricing is the host's). |
Open source: free to run on your own hardware; you pay only for the compute. Checked
Use it from an agent
| MCP server | None found |
|---|---|
| npm | npm install pgvector |
| PyPI | pip install pgvector |
Alternatives to pgvector
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