Union Square Ventures
Union Square Ventures (USV) is a thesis-driven, early-stage venture capital firm founded in 2003 by Fred Wilson and Brad Burnham and headquartered at 817 Broadway in New York City. USV invests at the edge of large markets being transformed by technological and societal pressures, historically backing large networks of engaged users that are differentiated through user experience and defensible through network effects, and more recently companies that broaden access to knowledge, capital, and well-being. The firm invests primarily at Seed and Series A across three strategies — a Core fund, a Climate fund, and an Opportunity (later-stage) fund — with check sizes typically ranging from roughly $1M at seed to the low-to-mid single-digit millions at Series A. USV runs a small, collegial partnership and focuses on social media, marketplaces, developer tools, learning/education, health, fintech, web3/decentralized protocols, energy, and climate. It reports roughly $1.9B in assets under management across 14 funds. Notable investments include Twitter, Etsy, Coinbase, Stripe, Cloudflare, MongoDB, Twilio, Duolingo, Kickstarter, Stack Overflow, SoundCloud, and Carta.
Union Square Ventures is tracked in the API Evangelist network. This page is the human-readable profile that sits on top of the machine-readable index we maintain at apis.io.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Union Square Ventures is in the network as a tracked entity. We haven't yet indexed a public API surface for it — when one is published, the artifacts, score, and agent-readiness read will appear here automatically. The source repository is where that profile is built.
← All providers · Data indexed from github.com/api-evangelist/union-square-ventures · machine-readable index on apis.io
This is an independent, third-party profile of Union Square Ventures, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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