Vector Databases With an API
As of June 2026, AIDiveForge tracks 3 vector databases with an api. Curated vector databases with an api tracked by AIDiveForge. Listings are verified against each tool's live website and re-checked regularly.
Last updated June 14, 2026 · 3 tools
1. debate.tellodb
The core mechanism is fact supersession: when a user moves from NYC to SF, TelloDB marks the old location as stale and filters it from active agent context — so the LLM never hallucinates a two-year-old truth. A hybrid HNSW vector plus BM25 search index handles recall, while a separate Metric Vault layer resolves numeric queries deterministically before they ever reach the LLM. The vendor reports p99 retrieval at 4.2ms and benchmarks recall precision above 95% on LongMemEval-S against 68% for standard RAG. The engine ships as a single Rust binary, self-hostable or deployable on the vendor's platform. At v0.1.0, the surface area is narrow — this is a memory layer, not a full agent runtime.
Paid
2. LanceDB
Open-source embedded vector database for multimodal AI with billion-scale search on Lance columnar format.
Paid
3. SynapCores
The engine handles graph traversal, HNSW vector similarity, and in-database LLM inference inside a single MATCH statement, so the four-to-five round-trips that Pinecone plus Postgres plus an external reranker produce become one. The Community Edition ships with 161 ready-to-run recipes covering GraphRAG, fraud detection, document ingestion, and AutoML — each a runnable markdown file you can modify locally. The ceiling arrives at the infrastructure layer: multi-node clustering, Raft replication, and CDC ingest from MySQL or Postgres binlogs are paid-only features. Teams that outgrow a single host hit that wall before they hit a query performance problem. For single-host deployments, the binary wire protocol and B-tree indexes the vendor targets in a future release are not yet available.
Paid
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