Data Mining

Polygres

Turns your Postgres database into a search engine for AI agents — hybrid queries across rows, relationships, and embeddings in one call.

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polygres.com

Verified API available Free tier

Quick facts
What is it	Turns your Postgres database into a search engine for AI agents — hybrid queries across rows, relationships, and embeddings in one call.
Pricing	Freemium — from $16/mo
Free tier	Yes
Platform	Web Application
API	Yes
Best for	providing context to AI agents for grounded responses, searching relational databases in real time for retrieval-augmented generation
Domain registered	2026

Data updated Sept. 19, 2026

What does Polygres do?

Polygres is a tool that turns any Postgres database into an internal search engine designed for AI agents. Instead of stuffing prompts with context or manually curating which rows to include, you run one hybrid query that spans graph traversal, vector search, full-text, and more. The result is a single ranked, token-ready context block that your agent can use immediately. It works with your existing Postgres instance — whether hosted on Polygres, Supabase, Neon, or any connection string.

Under the hood, Polygres uses two open-source Postgres extensions: pgGraph for graph traversal (foreign keys become a compiled graph) and pgContext for AI-native search (dense vectors, sparse retrieval, full-text, discovery, and exact fusion). All search methods run against your live tables at once, and a fusion pass re-ranks every hit. The CLI lets you manage projects and run queries from the terminal, and the SDK integrates directly into your agent's code. The page emphasizes that this approach gives agents "unbounded effective context" — no token limits, no forgetting, no manual curation.

Polygres is built for developers and teams building AI agents that need to query relational data in real time. It's especially useful for RAG pipelines, customer support bots, internal knowledge retrieval, and any scenario where an agent needs to pull context from a large, structured database. The open-source engines mean you're not locked into a proprietary stack. The managed hosting option gets you started in minutes, and the free tier lets you test before committing.

Data Management Data Mining For Data Analytics

#ai agent infrastructure#ai-agent-memory#context assembly#context-retrieval#database-backed agents#database scaling#filtered search#full-text search#graph database#graph traversal#grounded ai#hnsw#hybrid search#knowledge graphs#late-interaction search#managed postgresql#multi-hop retrieval#open source#pgcontext#pggraph#pgvector#postgresql#quantized search#rag#recommendation-systems#relational database#relationship search#retrieval augmented generation#self-hosted database#semantic matching#semantic search#shortest path search#sparse search#structured data retrieval#token-ready context#user memory#vector search

Key features

What makes it stand out

Hybrid search combining graph traversal, vector embeddings, full-text, and sparse retrieval in one query

Open-source Postgres extensions (pgGraph and pgContext) — no sidecar services or sync jobs

CLI for managing projects, importing data, and running queries from the terminal

SDK for integrating directly into AI agent code with a single retrieve() call

Works with any Postgres — host on Polygres or connect Supabase, Neon, or a raw connection string

Who is Polygres for?

Who benefits most from this tool

providing context to AI agents for grounded responses

searching relational databases in real time for retrieval-augmented generation

enabling AI customer support, internal knowledge retrieval, and data analysis

Pricing

Free tier available — start without a credit card

Self-Hosted

Free

Open Source pgGraph & pgVector
Run on any Postgres instance
Community Support

Launch

$16/month

Managed cloud database hosting
Support: Email & Community Discord

Scale

$256/month

Automated vertical & horizontal scaling
Support: Email & Community Discord
Private Discord/Slack Channel
Support Hours: 8:00 AM - 5:00 PM

Enterprise

Custom

Dedicated database cluster infrastructure
Email & Community Discord
Private Discord/Slack Channel
Support Hours: 24/7
Dedicated Support SLA & Uptime SLA

Trust & presence

Domain Domain registered 2026

Gallery

Click any image to enlarge

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