model-context-protocol
(5)
Metorial
Metorial is agentic infrastructure that connects AI agents to more than 1,200 tools and data sources through the Model Context Protocol (MCP). Its serverless runtime hosts MCP servers that boot in under a second and hibernate when idle, while handling OAuth, permissions, RBAC/SSO, and full tracing so companies can ship customer-facing agents without building integration plumbing. Founded in 2025 by Karim Rahme and Tobias Herber, the open-source, Apache-2.0 project is part of Y Combinator's Fall 2025 batch and is often described as the 'Vercel for MCP.'
Orthogonal
Orthogonal is a San Francisco startup building the discovery, orchestration, and payment layer for AI agents. Through a single SDK, REST API, MCP server, or CLI, agents can find, call, and pay per-use for 35+ third-party APIs - from data enrichment to search and scraping - with no subscriptions, no key management, and no sales calls. Founded in 2025 by Christian Pickett and Bera Sogut, the company raised a $4.3M seed round led by Pantera Capital and is part of Y Combinator's Winter 2026 batch.
Vespper
Vespper (YC F24) builds infrastructure that lets AI agents produce real Microsoft Word documents. Its product is a docx MCP (Model Context Protocol) server that turns raw agent output into clean, tracked, review-ready .docx files - aimed at regulated, legal, and compliance workflows where the final artifact has to be a Word doc with tracked changes, not a chat window. The two-person, Tel Aviv-based team originally launched an open-source, 24/7 AI on-call engineer for incident triage before pivoting into agent document infrastructure.
8090
8090 is an AI-native software factory that helps regulated enterprises build and modernize production software using teams of people working alongside AI agents. Founded by Chamath Palihapitiya in January 2024 and headquartered in the San Francisco Bay Area, its flagship Software Factory platform runs the full software development lifecycle - from business intent to production code - through five modules (Refinery, Foundry, Planner, Assembler, Validator) while preserving the documentation, oversight and audit trails that regulated industries require. The company raised a $135M Series A led by Salesforce Ventures in June 2026, with Chamath stepping in as full-time CEO.
Tim Wagner
Tim Wagner is the co-founder and CEO of Vendia, and the inventor of AWS Lambda - the service that launched the global serverless computing movement. With a PhD from UC Berkeley and stints at AWS (as GM of Lambda, API Gateway, and Serverless App Repository) and Coinbase (as VP Engineering), Wagner brings a rare double expertise in serverless infrastructure and blockchain. At Vendia, he has combined both disciplines to build a platform that enables secure, real-time data sharing across companies, clouds, and ecosystems - positioning it as the operating layer for the AI data era.