Hive A/B Test

This is a metered A/B testing service for autonomous agents that charges per call via x402 micropayments on Base USDC. You get three MCP tools: abtest_assign gives you a deterministic, sticky bucket assignment based on experiment ID and agent DID for $0.001, abtest_record_conversion logs outcomes for $0.005, and abtest_results is free and runs a two-proportion Z-test with pooled variance to tell you if your experiment hit significance. Bucket assignment uses SHA-256 hashing modulo variant weights, so the same agent always lands in the same bucket. The server doesn't run experiments for you, it just tracks assignments and conversions in SQLite and does the math. Reach for this when your agent needs to test prompt variants, tool chains, or retrieval strategies and you want stat-sig calculations without standing up your own infrastructure.