tap
From CSV files to production-ready APIs in seconds
tap launched on October 7, 2025 with 9 votes, #1,657 of 8,178 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
tap lets you turn raw data files (CSV, JSONL, Parquet, etc.) into managed, production-ready APIs in seconds. You upload your data, shape it with SQL transformations as needed, and then expose it via documented, secured endpoints.
Create APIs from data files in seconds with tap. Use SQL to join and transform your data then query it via documented and secured HTTPS APIs. Supports CSV, JSONL, Parquet and other files of any size.
tap generates optimised Parquet snapshots that can be queried through high-permormance, documented and secured APIs. Built using Rust, Apache DataFusion and PostgreSQL for metadata. Scotland publishes energy performance certificate data as CSV files only. So we used tap to transform those CSVs into the API behind epcdata.scotfrom tapintodata.com
Does a similar job
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SQL-tap – Real-time SQL traffic viewer for PostgreSQL and MySQLFeb 2026 · github.com · ▲233sql-tap is a transparent proxy that captures SQL queries by parsing the PostgreSQL/MySQL wire protocol and displays them in a terminal UI. You can run EXPLAIN on any captured query. No application code changes needed — just change the port.
- DPDatasette Publish – Turn CSVs into a SQLite-Backed JSON API2018 · publish.datasettes.com · ▲101
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