Your own corpus, made searchable.
| Option | What it does | Licence | Self-host |
|---|---|---|---|
| pgvector | Vector search inside the Postgres you already run. | Open source | Yes |
| Qdrant | Rust vector database with strong payload filtering, self-host or cloud. | Open source | Yes |
| Pinecone | Fully managed vector database. No index to operate. | Proprietary | No |
| Chroma | Embedded vector store that runs in-process. Ideal first index. | Open source | Yes |
| turbopuffer | Vector and full-text search on object storage — very cheap at rest. | Proprietary | No |
| LanceDB | Embedded multimodal store backed by the Lance columnar format. | Open source | Yes |
Your own corpus, made searchable. It is optional; plenty of working agents skip it.
This registry tracks 6. 4 are open source and 4 can run on your own infrastructure.
It depends on constraints rather than preference: whether you must self-host, whether the budget allows a hosted service, and which language your team writes. Describe what you are building and the advisor fills this layer along with the other 9.
Every page here answers to Accept: text/markdown and returns the same content at roughly a tenth the tokens. No separate site, no toggle — same URL.
curl -s -H "Accept: text/markdown" https://newagent.build/layers/retrieval