Open-source AI gateway and LLM observability: one API for 100+ models, cost and latency tracking, prompt management.
helicone.ai
#observability
4 tools curated in this category — including Helicone, GreptimeDB, Braintrust
techFind on mySelectas all sites and tools related to observability. This selection of 4 resources is reviewed and maintained by the community. The most popular include Helicone, GreptimeDB, Braintrust. Each tool comes with a review, tags, comparisons and alternatives to help you make the best choice.
Open-source observability database unifying metrics, logs and traces: SQL and PromQL, written in Rust, object-storage native.
greptime.com
AI eval and observability platform: tracing, LLM and human scoring, quality gates. Used by Vercel, Notion and Replit.
braintrust.dev
AI-native Postgres observability: 45+ automated health checks, query and config tuning, agent-ready JSON and MCP output. Open source.
postgres.ai