AI coworkers and custom apps that run your operations. Backed by Y Combinator and First Round.
Developer Tools
Search
Search and filter thousands of real startups by category, MRR, business model and sale status.
AI coworkers and custom apps that run your operations. Backed by Y Combinator and First Round.
AI code review designed to catch bugs in the most complex codebases. #1 on every independent benchmark. Try cubic free.
Scale Linux, Windows, macOS, and Android computer fleets for computer-use agents with one open-source MCP/CLI driver.
Capacitive provides developer tools, APIs, and cloud infrastructure software.
Train custom models on your data. Keep learning in production. Run faster and cheaper inference. Own the weights.
Knowledge graphs, vectors, temporal, and full-text search in one Rust engine - for agent memory, RAG, and company brains. Build memory yourself, or build your memory product on top of it.
Alpha Research provides developer tools, APIs, and cloud infrastructure software.
Hanji provides developer tools, APIs, and cloud infrastructure software.
Percival provides developer tools, APIs, and cloud infrastructure software.
PgDog is an open-source connection pooler, load balancer, and sharding proxy for PostgreSQL.
Attune provides developer tools, APIs, and cloud infrastructure software.
Refresh builds simulation engines for coding and computer use, for frontier labs to train the next generation of virtual software engineering collaborators.
Engineering, fabrication, and software. One accountable team delivering mission-critical systems.
Chiron provides developer tools, APIs, and cloud infrastructure software.
Clidey builds open-source data infrastructure that gives organizations complete control over their data. Self-hosted, governance-first, no vendor lock-in.
Reinforcement learning as a service.
OpenAI- and Anthropic-compatible inference for coding agents. Call DeepSeek-V4.1-Flash, DeepSeek-V4-Flash, GLM-5.3, Kimi K3, and Qwen with zero data retention.
Nixo equips forward deployed engineers with the infrastructure to move from discovery to deployment 10x faster. Backed by Y Combinator.
An AI that watches every session, catches what your dashboards miss, and acts on it - opening PRs and reaching the users affected.
ParaQuery provides developer tools, APIs, and cloud infrastructure software.
On-device AI with cloud fallback. Cactus post-trains models to know when they are wrong and hand off to frontier cloud models - cutting inference costs up to 5x.
Synthetic Society is building synthetic users to automate end-to-end QA and UX testing, enabling rapid bug detection and superior user experiences.
Kairos provides developer tools, APIs, and cloud infrastructure software.
Infrastructure that lets agents autonomously operate businesses. Pick a company template, deploy it, and watch an agent team run it.