Zag Bio
Zag Bio is a clinical-stage biotechnology company developing thymus-targeted therapies for autoimmune diseases. The company engineers bifunctional antibodies that deliver self-antigens to antigen-presenting cells in the thymus, harnessing the body's natural process of central immune tolerance so developing immune cells learn to recognize, tolerate, and protect the body's own tissues. Its pipeline includes ZAG-101, a candidate for Type 1 Diabetes. Founded and incubated by Polaris Partners, Zag Bio launched publicly in October 2025 with an $80M Series A. It is tracked in the API Evangelist network as a Lightspeed Venture Partners portfolio company; as a therapeutics developer it publishes no public API or developer platform at this time.
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.
Zag Bio 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 — Zag Bio scores 13.0/100 (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 Zag Bio — 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.
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Zag Bio 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/zag-bio · machine-readable index on apis.io