Deterministic API Mocking That Ends Flaky CI/CD Tests.
Stop wasting sprints on random test failures. TestSeed is schema-driven API mocking infrastructure — same seed, same output, every CI run. OpenAPI & GraphQL ready.
Trusted by 500+ engineering teams in CI/CD pipelines
Works with your CI stack
How TestSeed works
Schema-Driven Test Data from OpenAPI, GraphQL, or Custom Entities.
TestSeed is an OpenAPI mocking tool and JSON schema generator that adapts to your API. Every structural change becomes a new immutable Seed version with a clear diff for CI.
Smart Import
Parse OpenAPI or GraphQL schemas in seconds.
Deterministic Data
Same seed, same output across local and CI runs.
Schema Editor
Model entities, relations, and constraints in one place.
Regex Constraints
Generate edge-case values with native regex rules.
Pricing that scales with you
Core blueprints are available on every plan. Smart Import and GraphQL support unlock with Pro.
Built for Scale
Teams Ship Faster with Deterministic Data.
Trusted by engineering teams in CI/CD pipelines worldwide.
500+
Engineering Teams
From solo devs to Series B scale
< 60s
Seed to Live Endpoint
Define schema to first API call
0 bytes
PII Ever Processed
100% synthetic data — safe for any env
FAQ