Open Source Startups

Artillery is a performance testing toolkit that provides load testing, Playwright-based end-to-end testing, and production monitoring capabilities for web applications and APIs. It serves development and DevOps teams that need to ensure application performance and reliability at scale.

1 investor

Caveman offers an optimization layer for AI agents that monitors live agent workloads, identifies cost and performance inefficiencies, tests potential improvements, and deploys the ones that prove effective. It serves teams running AI agents who want to reduce operating costs without degrading performance.

1 investor

Chaos Genius is a DataOps observability platform for Snowflake that helps companies reduce Snowflake costs and optimize query performance. It serves data engineering teams using the Snowflake data warehouse.

1 investor

Corsair is an open-source SDK and integration platform that enables applications to connect to third-party services without maintaining underlying infrastructure, with permission-based approval workflows and self-hosted deployment options.

1 investor

A CRM platform that deploys AI agents to handle business tasks like lead intake, email drafting, outbound sales, and report generation, which operate within communication channels and require user approval before execution.

1 investor

Dittofeed is an omni-channel marketing automation and transactional messaging platform that enables organizations to automatically send messages across email, SMS, webhooks, and other channels through low-code journeys and templates. It is available as a cloud service or self-hosted solution and serves teams needing to trigger lifecycle marketing and transactional messages at scale.

1 investor

Grai provides open source version control software for tracking metadata, enabling users to trace how changes to databases propagate through machine learning models, APIs, and dashboards by mapping data relationships across disconnected systems.

1 investor

Jitsu is an open-source event data collection platform that captures behavioral data from websites, apps, and other sources directly into data warehouses in real-time. It serves data teams and product analytics teams who want to build unified data pipelines without vendor lock-in.

1 investor

Laudspeaker provides an open source platform for mobile marketing automation and customer onboarding, letting teams create segmented push notification, SMS, and email campaigns with complex scheduling rules.

1 investor

Lotus provides a pricing and billing platform that helps API-based companies automate usage-based pricing models, with features spanning metering, invoicing, and pricing testing; it offers both an open-source self-hosted version and paid cloud/enterprise tiers.

1 investor

Lucebox builds private, always-on workstations for local AI inference that ship with its own tuned, open-source inference engine, letting developers run tools like Claude Code, Codex, or OpenCode on their own hardware. The company is developing personal AI computers that train small models on a user's daily work and context, aimed at developers who want local alternatives to cloud inference.

1 investor

LunaSec built LunaTrace, a hosted open-source tool that scans software dependencies for security vulnerabilities and provides remediation guidance. The company notes it has shut down.

1 investor

Lunatic is a WebAssembly runtime for building distributed services with isolated, lightweight processes supporting high concurrency and fault tolerance. It targets developers building scalable backend systems and microservices.

1 investor

Mistle runs engineering agents that automate software development tasks such as code review, bug investigation, and pull request preparation across GitHub repositories. The platform integrates with GitHub, Slack, and OpenAI to help engineering teams automate repetitive workflow tasks.

1 investor

Monosi provides a data observability platform that helps teams monitor and maintain the quality and reliability of their data systems.

1 investor

Moonrepo develops developer tools for managing monorepos and programming language environments. The platform provides tools for teams working with multiple projects and languages to simplify codebase management and automate version control across projects.

1 investor

nCompass Technologies builds an AI agent and VS Code extension that identifies GPU performance bottlenecks and generates optimization code, helping developers reduce GPU system analysis and implementation time from weeks to days.

1 investor

TrustAI provides workflow automation software that captures and distributes organizational knowledge and instincts through AI-driven suggestions, with transparency and human oversight. The platform enables teams to automate repetitive tasks while preserving judgment and expertise across the organization.

1 investor

OpenInt provides a platform for teams to build product integrations quickly using no-code or low-code tools, offering unified APIs for data operations or direct database synchronization.

1 investor

OpenSEO is an open-source, self-hostable SEO platform that connects to AI agents via MCP to deliver keyword research, competitor analysis, backlink inspection, rank tracking, technical site audits, and AI-search visibility using DataForSEO data. It targets entrepreneurs and businesses looking to grow organic search traffic.

1 investor

Opslane automates verification of code changes by spinning up ephemeral app environments and running acceptance criteria through a real browser, posting screenshots, video, and data checks to pull requests as proof. The platform serves software development teams as an alternative to manual code review and AI-only code analysis.

1 investor

Pretzel AI develops artificial intelligence products for businesses to improve understanding, decision-making, and operations.

1 investor

RecipeUI is an open source tool for testing and debugging APIs that lets non-backend engineers diagnose API failures independently.

1 investor

Rowboat Labs builds an open-source AI assistant that runs locally on users' computers to help with workplace tasks like email drafting, meeting preparation, and project management by maintaining a knowledge graph of their work data. The tool integrates with various applications and supports custom extensions for personalized workflows.

1 investor