Startup
Latitude
Open-source agent observability that dispatches coding agents to fix failures.
Latitude (Latitude Data S.L.) builds an open-source, MIT-licensed platform for monitoring AI agents in production. One line of telemetry captures multi-turn sessions, tool calls and full execution paths, with OTEL compatibility. Failing traces are auto-grouped into tracked signals and issues with alerts. Latitude then dispatches a coding agent such as Claude Code or Cursor with sample traces to write a fix and open a PR, and replays fixes against the real failing traces as regression tests. Everything is also exposed through an MCP server and CLI. Hosted data stays on European servers.
People
Executive
CTO
Harness engineering
Co-founder & CEO
Evals & benchmarks
Neighbours in the directory
San Francisco, CA · Est. 2022
The de-facto standard toolkit for building LLM applications and agents.
LangChain makes the LangChain framework and LangGraph, the low-level orchestration standard for stateful, controllable agents, plus the LangSmith platform for tracing, evaluating and monitoring them in production.
~$75M raised
San Francisco, CA · Est. 2023
Devin, the AI software engineer, and the Windsurf IDE.
Cognition builds Devin, an autonomous AI software engineer that plans and executes engineering tasks end-to-end, and acquired the Windsurf agentic IDE in 2025. One of the defining startups of the coding-agent wave.
~$10.2B valuation (Sep 2025)
San Francisco, CA · Est. 2023
Enterprise-grade evals, data and AI gateway.
Braintrust turns prompts and agent traces into testable datasets and CI, plus an inference gateway — helping teams measure whether harness changes actually improve agent quality.
Connections
Relations from the Harness Hub knowledge graph, as charted in the State of Harness reports.
Built on · 1
- Model Context ProtocolProject
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Sources
Verified Oct 29, 2026