BitDive

What BitDive is

BitDive records runtime behavior in Java and Kotlin services and turns executions into replayable JUnit 5 tests for checking code changes. Its agent captures method calls, SQL queries, HTTP requests, Kafka messages, JVM metrics, and exception traces. Comparisons between earlier and later behavior can expose SQL drift, additional HTTP calls, and performance regressions. Generated tests run with standard Maven or Gradle tooling. BitDive supports Java 8 through 21 and captures bytecode-level behavior without requiring source-code changes. It also makes runtime context and trace operations available through MCP to AI coding tools including Cursor, Windsurf, and Claude. The integrations list includes 49 technologies, among them Java, Kotlin, Spring Boot, PostgreSQL, MongoDB, Kafka, JUnit 5, Testcontainers, and Maven. Documented deployment options include hosted SaaS, on-premise, and air-gapped installations, plus a one-command self-hosted setup. Security details include TLS 1.3 in transit, AES-256 at rest, and masking sensitive fields inside the JVM before data leaves it. Individual developer use costs nothing, but comes without SLA commitments, indemnities, or custom engineering. Company rollout uses custom pricing.