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AI · alternatives · 2026

24 alternatives to Velvet – Store OpenAI requests in your own DB

Hey HN! We’re Emma and Chris, founders of Velvet (https://www.usevelvet.com). Velvet proxies OpenAI calls and stores the requests and responses in your PostgreSQL database. That way, you can analyze logs with SQL (instead of a clunky UI). You can also set headers to add caching and metadata (for analysis). Backstory: We started by building some more general AI data tools (like a text-to-SQL editor). We were frustrated by the lack of basic LLM infrastructure, so ended up pivoting to focus on the tooling we wanted. So many existing apps, like Helicone, were hard to use as power…

Velvet is a proxy service that intercepts OpenAI API calls and stores requests and responses directly in a user's PostgreSQL database. This allows developers to query and analyze their LLM usage patterns using SQL… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Velvet – Store OpenAI requests in your own DB launched in 2024; newer entries below may have overtaken it.

  1. 1
    Velvet▲217

    Warehouse AI requests with 2 lines of code

    2024 · usevelvet.com · its alternatives →

  2. 2

    SnapQL is an open-source desktop app (built with Electron) that lets you query your Postgres database using natural language. It’s schema-aware, so you don’t need to copy-paste your schema or write complex SQL by hand. Everything runs locally — your OpenAI API key, your data, and your queries — so it's secure and private. Just connect your DB, describe what you want, and SnapQL writes and runs the SQL for you.

    2025 · github.com · its alternatives →

  3. 3

    The in-browser Postgres sandbox with AI assistance

    2024 · database.build · its alternatives →

  4. 4

    In-memory Postgres for unit/E2E tests. Contribute to hexclave/pgmock development by creating an account on GitHub.

    2024 · github.com · its alternatives →

  5. 5
    FluentDB▲275

    The AI database client for Mac

    Jul 2026 · fluentdb.ai · its alternatives →

  6. 6

    Blazing fast, instant realtime GraphQL APIs on all your data with fine grained access control, also trigger webhooks on database events. - hasura/graphql-engine

    2018 · github.com · its alternatives →

  7. 7

    Hey HN, we’re Robert, Din and Temirlan from Laminar (https://www.lmnr.ai), an open-source observability and analytics platform for complex LLM apps. It’s designed to be fast, reliable, and scalable. The stack is RabbitMQ for message queues, Postgres for storage, Clickhouse for analytics, Qdrant for semantic search - all powered by Rust. How is Laminar different from the swarm of other “LLM observability” platforms? On the observability part, we’re focused on handling full execution traces, not just LLM calls. We built a Rust ingestor for OpenTelemetry (Otel) spans with GenAI…

    2024 · github.com · its alternatives →

  8. 8
    CamelAI▲194

    camelAI turns your database into an AI data analyst. Ask questions in plain English, get instant reports with visualizations - no SQL required. Why we built this: - Business teams waste hours waiting for data analysts to build dashboards - Non-technical founders can't get quick insights from their own data - Writing SQL queries is a barrier to data-driven decisions What makes it different: - Uses DuckDB to query terabytes in seconds (built-in, no setup needed) - Supports advanced analytics (cohort analysis, statistical computations) not just basic SQL - Multi-turn conversations: AI explores…

    2025 · camelai.com · its alternatives →

  9. 9

    hi hn, hydra ceo here hydra is an open source, column-oriented postgres. you can set up remarkably fast aggregates on your project in minutes to query billions of rows instantly. postgres is great, but aggregates can take minutes to hours to return results on large data sets. long-running analytical queries hog database resources and degrade performance. use hydra to run much faster analytics on postgres without making code changes. data is automatically loaded into columnar format and compressed. connect to hydra with your preferred postgres client (psql, dbeaver, etc). following 4 months…

    2023 · hydra-so.notion.site · its alternatives →

  10. 10
    Velvet▲166

    Make everyone a data engineer

    2024 · usevelvet.com · its alternatives →

  11. 11HA

    Hasura delivers accurate, fast, and secure data access for AI and digital experiences. Trusted by data leaders and developers at Fortune 100 companies and high-growth AI and digital natives.

    2017 · hasura.io · its alternatives →

  12. 12

    The AI that knows your Postgres database

    2024 · chat-with-your-database.vercel.app · its alternatives →

  13. 13

    Hi HN, We're Luke and Phillip, and we're building Spice.ai OSS - a lightweight, portable runtime, built in Rust and powered by Apache DataFusion to locally materialize, accelerate, and query data tables sourced from any database, data warehouse or data lake. Phillip and I first introduced Spice on Show HN in September 2021. Since then, we’ve been schooled and humbled in every way building 100TB+ data and ML systems for the https://spice.ai cloud platform. Along with our customers, we struggled with getting fast, low-latency, high-concurrency SQL query within a budget, accessing and…

    2024 · github.com · its alternatives →

  14. 14LA

    We are excited to share Lantern! Lantern is a PostgreSQL vector database extension for building AI applications. Install and use our extension here: https://github.com/lanterndata/lantern We have the most complete feature set of all the PostgreSQL vector database extensions. Our database is built on top of usearch — a state of the art implementation of HNSW, the most scalable and performant algorithm for handling vector search. There’s three key metrics we track. CREATE INDEX time, SELECT throughput, and SELECT latency. We match or outperform pgvector and pg_embedding…

    2023 · docs.lantern.dev · its alternatives →

  15. 15

    Polygres turns the Postgres you already run into internal search for AI agents. Rows, relationships, and embeddings: one hybrid query, one ranked answer.

    Jul 2026 · polygres.com · its alternatives →

  16. 16VP

    # TL;DR We built VeilStream, a drop-in, read-only PostgreSQL proxy that strips, masks, or anonymizes sensitive values as queries stream through. In less than two minutes, you can put a proxy in front of a PostgreSQL database, whether hosted on your laptop, Neon, Supabase, or a cloud provider, and the user is able to start configuring filter rules. The use cases we're trying to solve are: - Production-like data in development environments - Improve incident handling by masking all data that is not relevant - Share a subset of your data - Protecting data being shipped into a data lake - Safe…

    2025 · app.veilstream.com · its alternatives →

  17. 17
    valv▲70

    Your database, safe for agents to query

    Jul 2026 · platform.valv.sh · its alternatives →

  18. 18

    Enterprise-Grade OSS PostgreSQL Distribution with HA, PITR, IaC, Monitor, 12 kernel forks and 575 PG extensions. Best-of-breed products integrated as a platform. Self-host Postgres like a Pro! - pgsty/pigsty

    2023 · github.com · its alternatives →

  19. 19

    A fast, native PostgreSQL client for macOS, with an AI assistant that uses the Claude Code, Codex or Cursor account already on your Mac.

    19d ago · frizky.dev · its alternatives →

  20. 20
    Lore▲130

    I built Lore because I kept losing knowledge — curl commands, quick notes from standups, and that one thing I told myself I'd remember. It lives in the system tray, a global shortcut pops it up, you type naturally, and it stores or retrieves automatically. Everything runs locally via Ollama + LanceDB — no cloud, no API keys. It classifies your input (thought, question, todo, instruction) and uses a RAG pipeline to answer recall queries from your own stored context. It's free and open source under MIT license, and even though its in very early version me and my friends have been using it for…

    Mar 2026 · github.com · its alternatives →

  21. 21

    Hi HN, we’re Luke and Phillip, and we’re building Spice.ai OSS - a lightweight, portable data and AI engine and powered by Apache DataFusion & Ballista for SQL query, hybrid-search, and LLM-inference across disaggregated-storage used by enterprises like Barracuda Networks and Twilio. With v2.0, you can add a real-time analytics node to your operational database with high-throughput native CDC replication. We first introduced Spice [1] on HN in 2021 and re-launched it on HN [2] in 2024 re-built from the ground up in Rust. In 2025 we launched Spice Cayenne [5], our acceleration and query…

    2023 · spice.ai · its alternatives →

  22. 22

    Hi HN - I'm Venkat, founder of Stayflexi (YC), CMU CS grad and Ex-Oracle Query Engine team (patents in core databases) DeepSQL started as an internal tool to stop our own databases from becoming the bottleneck they were becoming (13,000+ hotels in production). It worked well enough that we're releasing it. DeepSQL is an AI agent that operates a database the way a senior DBA and Data Engineer would 1. Fixes slow queries (we cutdown DB spend by 4x) 2. Fixes DB bloat (blocks unnecessary schema changes, in vibecoded setup) 2. BI dashboards(we removed spend on tableau, retool and appsmith) 3.…

    Jul 2026 · deepsql.ai · its alternatives →

  23. 23
    ReliAPI▲87

    Stop losing money on failed OpenAI and Anthropic API calls.

    Dec 2025 · kikuai-lab.github.io · its alternatives →

  24. 24
    Lapis▲79

    Secure, offline AI chat assistant on your device

    Nov 2025 · lapis.lvrpiz.com · its alternatives →

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