ai2sql

ai2sql

AI2SQL is an AI-powered SQL assistant that generates, explains, optimizes, fixes, formats and runs SQL against your live database schema, with read-only, audited connections and multi-database support.

ai2sql is developer tools software teams evaluate for developer tools. Use this page to review pricing, integration signals, and the best alternatives before you commit.

Freemium API Enterprise 75/100
#80 in Developer Tools (80 tools)
Just launched
Data reviewed Aug 17, 2026

Profile facts come from the vendor source. AiMatch labels unknown pricing or API details instead of estimating them.

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Quick Overview

Best for: Developer Tools

What it does

Developer Tools software for decision-makers comparing workflow fit and alternatives.

Best fit

Developer Tools

Pricing snapshot

Freemium from $9 per month or $7/mo billed annually

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ai2sql

AI2SQL is an AI-powered SQL assistant designed to let users describe queries in plain English and receive correct, dialect-specific SQL against their live schema. It connects to many databases (PostgreSQL, MySQL, SQL Server, Oracle, Snowflake, BigQuery, Redshift, MongoDB, SQLite, Firebird), builds a semantic layer from the schema, and returns generated SQL, explanations, optimizations, fixes and formatted queries. The product emphasizes safety and governance: connections are read-only by default, statements are classified and dangerous writes or DDL are blocked before they reach the database, and every query is logged, metered and auditable.

AI-powered tool to generate, optimize, and understand SQL queries easily.

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Key Features

Text-to-SQL generation

Convert natural-language descriptions into SQL that uses your real table and column names and the correct dialect for the connected database.

Explain SQL

Provide plain-language walkthroughs of existing queries, clause by clause, using the real schema and query plan to build trust before execution.

Optimize SQL

Rewrite slow queries with reasoning about join/filter placement and missing indexes to improve performance.

Fix SQL errors

Correct syntax errors, dialect mismatches and wrong column names with explanations of what failed.

Format SQL

Consistent casing, indentation and line breaks to make queries readable before committing or PRs.

Run queries against live databases

Execute generated SQL on a read-only connection and return rows without leaving the page; execution is audited and metered.

Schema-aware semantic layer

Builds a semantic layer from your schema (tables, joins and business terms) so generated SQL is correct on your data, not a generic example.

Connectors & multi-database support

Connect read-only credentials for PostgreSQL, MySQL, SQL Server, Oracle, Snowflake, BigQuery, Amazon Redshift, MongoDB, SQLite and Firebird; desktop connector supports local/private addresses.

Desktop Connector

A local connector (Windows, macOS, Linux) lets the assistant run against databases that only listen on localhost or internal hostnames; credentials never leave the machine.

Gateway & agent MCP endpoint

A governed MCP endpoint and REST API allow AI agents (Cursor, Claude, ChatGPT in developer mode or custom agents) to call run_query; keys are scoped per agent, rate-limited, logged and revocable.

Safety & governance

Read-only enforcement, sqlGuard classification blocking writes and DDL, encrypted credentials, query logging and revocable keys.

Query library & team features

Shared query library, role-based access control, execution priority and analytics for teams (Team plan).

Pricing

Free Tier Available

Free tier: 100 queries, no credit card required (site also notes every paid plan includes a 3-day free trial and a card is required to start the trial).

Start

$9 per month or $7/mo billed annually
  • 100 SQL queries / month
  • Basic SQL generation
  • Explain SQL queries
  • Fix syntax errors

Pro

$19 per month or $14/mo billed annually
  • Unlimited SQL queries
  • Advanced AI model
  • Query optimization & explanation
  • Database connectors

Team

$39 per month or $29/mo billed annually
  • Everything in Pro
  • 5 users included
  • Shared query library
  • Role-based access control

Use Cases

Data analyst

Ask in English and get queries that match real column names and joins, then run and inspect rows without leaving the page.

Backend developer

Paste a working but slow query to get explanations, optimized rewrites and fixes for dialect issues.

Data engineer

Manage queries across multiple dialects and databases from one interface, using connectors for a range of systems.

AI agents

Let governed AI agents query databases through the MCP endpoint without sharing raw credentials; calls are metered, logged and scoped per agent.

Learning SQL

Get generated queries with explanations to learn why a query works and speed up SQL learning.

Integrations

Database connectors

PostgreSQL, MySQL, SQL Server, Oracle, Snowflake, BigQuery, Amazon Redshift, MongoDB, SQLite and Firebird support via read-only connections.

Desktop Connector

Local connector for Windows, macOS and Linux to access databases on localhost or private addresses; credentials do not leave the machine.

MCP & REST API

A governed MCP endpoint and REST API let agents like Cursor, Claude and ChatGPT (developer mode) or custom agents run queries with scoped keys.

Benefits

Generates dialect-correct SQL against your live schema so joins and column names match your database.
Runs queries and returns rows, enabling verification of results rather than just generation.
Enforces read-only access and blocks dangerous statements before they reach the database for safer usage.
Supports many databases and local/private-host databases via a desktop connector.
Provides governance for AI agents with scoped keys, audit logs, metering and rate-limiting.

Limitations

Query generation requires a connection to AI2SQL's API (generation is not fully offline).
Desktop app for local/private database access is available on Pro (desktop access tied to plan).
Trial requires a card to start (3-day free trial with card required).
Read-only enforcement blocks writes and DDL by design, so write operations are not supported through the platform.

Frequently Asked Questions

Is there a free trial, and do you need my card?
Every plan starts with a 3-day free trial; $0 is charged today but a card is required to start it and you can cancel in one click before the trial ends.
Is my database safe?
Connections are read-only by default; sqlGuard classifies statements before they reach your database and blocks INSERT, UPDATE, DELETE, DROP and other DDL; credentials are encrypted, queries are logged, and keys can be revoked.
Can it read my own schema?
Yes — connect a database and AI2SQL uses your real tables, columns and relationships when it writes SQL so joins and names match your schema.
Which databases are supported?
PostgreSQL, MySQL, SQL Server, Oracle, Snowflake, BigQuery, Amazon Redshift, MongoDB, SQLite and Firebird.
How is this different from letting ChatGPT write SQL?
AI2SQL reads the live schema so it knows tables/columns without pasting them, emits the right dialect, can run queries and return rows, refuses writes by default, and exposes a governed endpoint for agents.
Is there an API, and can my AI agent use it?
Yes — there is a REST API and a governed MCP endpoint that any MCP-compatible client speaks; keys are scoped per agent and every call is metered and logged.
Does it work offline or on the desktop?
There is a desktop app for Windows and macOS on the Pro plan to reach databases that only listen on localhost or an internal hostname; query generation itself needs a connection to AI2SQL's API.

Getting Started

  1. 1 Step 1: Create an AI2SQL account and start a free trial or free tier.
  2. 2 Step 2: Connect AI2SQL to your database using read-only credentials (supported databases listed on the site).
  3. 3 Step 3: Use plain-English prompts to generate, explain, optimize, fix or run SQL; optionally install the desktop connector for local/private databases or configure the Gateway/MCP endpoint for agents.

Support

Docs

API & MCP documentation and guides available on the site (MCP docs referenced).

Chat support

Chat support is included on the Start plan; priority support on Pro and Team plans.

Contact

Contact link available on the site for sales or other inquiries.

API

Available: Yes
Documentation:

REST API and MCP docs are provided on the site (the product describes a governed MCP endpoint and REST API for agents).

Rate Limits:

Calls are metered and the gateway supports rate-limiting; every query is audited and metered per query.

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