Chroma Medicine
Chroma Medicine was a Boston-based, clinical-stage biotechnology company developing epigenetic editors — CRISPR-derived medicines that silence or activate genes by writing epigenetic marks rather than cutting DNA — with CRMA-1001, a liver-targeted epigenetic editing therapy for chronic hepatitis B and hepatitis D, as its lead program. In December 2024 it merged with Nvelop Therapeutics, pairing Chroma's epigenetic editors with Nvelop's non-viral in vivo delivery vehicles, to form nChroma Bio with $75 million in new financing. chromamedicine.com now redirects to nchromabio.com. As a therapeutics developer it publishes no developer program, public API, SDK, or machine-readable specification of any kind.
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.
Chroma Medicine 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 — Chroma Medicine 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.
Why this profile is thin
Chroma Medicine no longer exists as a standalone company — it merged with Nvelop Therapeutics in December 2024 to form nChroma Bio, and chromamedicine.com now 301s to www.nchromabio.com, a six-page WordPress marketing site for a clinical-stage genetic medicines developer with no developer, API, or documentation section.
This is an honest zero, not a gap in our research. Chroma Medicine does not appear to expose an API, so there is nothing here for us to index and nothing for them to fix.
What we probed
https://chromamedicine.com→ HTTP 301https://www.nchromabio.com/→ HTTP 200https://www.nchromabio.com/openapi.json→ HTTP 404https://www.nchromabio.com/.well-known/agent-card.json→ HTTP 404https://www.nchromabio.com/developers→ HTTP 404https://api.github.com/orgs/chromamedicine→ HTTP 404
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 2026-08-17 · rubric v0.11.0
Put this on your own site. The badge is drawn live from Chroma Medicine's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/chroma-medicine/"
title="Chroma Medicine on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/chroma-medicine.svg"
alt="Chroma Medicine Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/chroma-medicine/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/chroma-medicine/"
title="Chroma Medicine on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/chroma-medicine/card.svg"
alt="Chroma Medicine Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
Resources
Every other property we hold for Chroma Medicine — 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.
Commercial 1
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Other 1
Properties that don't map to a standard resource type
Chroma Medicine 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/chroma-medicine · machine-readable index on apis.io
This is an independent, third-party profile of Chroma Medicine, 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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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.