Nura Bio
Nura Bio, Inc. is a clinical-stage biopharmaceutical company headquartered in South San Francisco, California, developing neuroprotective small-molecule medicines that halt neurodegeneration before it progresses. Conceived in 2018 by The Column Group together with scientific founders Steve McKnight, PhD and Marc Freeman, PhD, the company targets SARM1 — a neuronally enriched NAD hydrolase that acts as an axon-intrinsic metabolic sensor and central driver of axonal degeneration — on the thesis that intervening early in that pathway confers durable structural and functional neuroprotection across peripheral, central and ocular nervous-system disorders. Its pipeline is led by NB-4746, a first-generation oral, brain-penetrant, reversible orthosteric SARM1 inhibitor in a global Phase 1b/2a study in ALS, and NB-9402, a mechanistically differentiated second-generation oral, covalent, irreversible, allosteric inhibitor completing a Phase 1a healthy-volunteer study in 2026. Nura Bio launched publicly in January 2020 with a $73 million Series A, extended that round with $68 million to pass $140 million raised, and closed a $73.8 million Series B in June 2026 led by The Column Group with Euclidean Capital, Samsara BioCapital and Sanofi Ventures; Shilpa Sambashivan, PhD, a co-founder and its chief scientist, serves as CEO. Its science is published in NEURON and CELL REPORTS. Nura Bio runs no developer program and publishes no product API, developer portal, API reference, SDK or pricing. The only machine-readable surfaces reachable without credentials are a published llms.txt and the WordPress REST content API behind nurabio.com, which serves the news archive, site pages, people directory and media library as JSON — both catalogued here.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Nura Bio the way a machine reads it — 11 machine-readable artifacts across 2 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
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 — Nura Bio scores 27.0/100 (thin), with a separate agent-readiness read of 22/100 (agent aware). 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. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-01 · rubric v0.18.0
Put this on your own site. The badge is drawn live from Nura Bio'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/nura-bio/"
title="Nura Bio on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/nura-bio.svg"
alt="Nura Bio Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/nura-bio/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/nura-bio/"
title="Nura Bio on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/nura-bio/card.svg"
alt="Nura Bio 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
How we profile Nura Bio
Each block below is one kind of artifact we hold for Nura Bio. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 7
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Nura Bio Directory API
Public author projection for users who have published content.
Nura Bio Discovery API
Route, type, taxonomy, status and oEmbed discovery endpoints that describe the deployment itself.
Nura Bio Media API
The media library: logo assets, team headshots, scientific figures and press-release documents.
Nura Bio Pages API
The six evergreen site pages: Home, About Us, Our Science, News & Literature, Join Us, Contact.
Nura Bio Portfolio API
The people directory — leadership, board of directors, and founders and advisors — carried on the Avada theme `portfolio` custom post type and its `portfolio_entries` taxonomy.
Nura Bio Posts API
The company news archive — press releases and financing, clinical and publication announcements.
Nura Bio Taxonomy API
Category and tag terms applied to the news archive.
Scroll within the panel for all 7 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Nura Bio Rate Limits
RATE LIMITSSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for Nura 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.
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 6
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/nura-bio · machine-readable index on apis.io
This is an independent, third-party profile of Nura Bio, 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.