sqlai.dev — don
Free online SQL verifier: paste a schema and a query, and it actually executes in your browser on SQLite or DuckDB. Real errors, real results, no LLM guessing. Paid MCP endpoint for AI agents.
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https://sqlai.dev/https://mcp.sqlai.dev/mcpLast probed Nov 3, 2026 · mcp.sqlai.dev
5tools discovered
Run Sql
Execute a SQL query against a fresh ephemeral in-memory database built from your schema (and optional seed rows).
Validate Sql
Validate a SQL query against a schema WITHOUT executing it (parse + name/type binding via EXPLAIN).
Explain Plan
Return the engine-native query plan for a query (SQLite: EXPLAIN QUERY PLAN) plus full-table-scan warnings.
Run Sql Batch
Run up to 10 queries against the same schema+seed.
Diff Results
Answer "do these two queries return the same thing?" — the self-check for query refactors.
Schemas and invoke metadata: Directory API
Get your MCP into directories
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Directory coverage for brandsFree online SQL verifier: paste a schema and a query, and it actually executes in your browser on SQLite or DuckDB. Real errors, real results, no LLM guessing. Paid MCP endpoint for AI agents.
Use the MCP endpoint listed on this page in your MCP client configuration. One-click install pills support Claude, Cursor, VS Code, and other hosts. Copy the remote MCP URL if your client needs a manual entry.
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