Brewster
Brewster was a New York-based mobile contacts startup founded by Steve Greenwood that launched an iOS app in July 2012 offering a "hyperconnected mobile address book" — it merged phone contacts with Google Apps, Facebook, Twitter, Foursquare and LinkedIn profiles, deduplicated them, and kept them self-updating in the cloud while surfacing relationship signals about who a user actually engaged with. The company was backed by Union Square Ventures and Slow Ventures. In October 2015 the founding team was acqui-hired by Restaurant Brands International (owner of Burger King and Tim Hortons) without the app or its data, and in March 2016 FullContact acquired Brewster's self-updating address book technology and shut the consumer product down within 30 days. Brewster never published a public developer API, SDK, OpenAPI definition or developer portal, and no API surface survives today. This profile is retained as a historical record only.
Index entry only — little beyond a description and a link, and nothing machine-readable enough for an agent to act on without a human reading the site first.
Brewster 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. From those artifacts we compute the Kin Score — Brewster scores 6.8/100 (minimal), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Resources
Every other property we hold for Brewster — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Company 5
The organization behind the API
Brewster 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.
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