Turn your OpenAPI spec into negative tests
I’ve been working on an open-source CLI tool called Dochia for a while now. The reason for building it: in microservices architectures, testing is repetitive: every service exposes APIs, and much of the testing process will share a similar set of test cases: negative inputs, boundary cases, encoding quirks, invisible characters. I wanted a tool that could automate this shared layer of testing instead of doing it manually across dozens of services. So what Dochia does: reads your OpenAPI spec; generates thousands of smart, edge-case payloads automatically and produces detailed reports with…
Turn your OpenAPI spec into negative tests launched on October 6, 2025 with 50 votes, #412 of 8,178 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
This tool converts OpenAPI specifications into negative test cases automatically. It generates tests that verify how APIs handle invalid inputs, edge cases, and error conditions—scenarios that positive testing often misses. Designed for developers and QA teams, it helps identify vulnerabilities and unexpected behaviors before they reach production. The tool integrates with existing OpenAPI documentation to streamline test generation and improve API robustness.
written from the facts on this page · September 2026
From the sources
Dochia automatically generates and executes negative and boundary testing so you and your AI agents can focus on building. Because nobody wants to debug why their "enterprise-grade" API can't handle a simple 🤷♀️ - dochia-dev/dochia-cli
In the maker’s words, at launch
I’ve been working on an open-source CLI tool called Dochia for a while now. The reason for building it: in microservices architectures, testing is repetitive: every service exposes APIs, and much of the testing process will share a similar set of test cases: negative inputs, boundary cases, encoding quirks, invisible…
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