Harbinger Health

Harbinger Health is a Cambridge, Massachusetts biotechnology company founded out of Flagship Pioneering's Flagship Labs in 2018 that is building blood-based early cancer detection on the premise that the earliest phases of oncogenesis are marked by the reactivation of core developmental programs. Its proprietary Harbinger HX platform pairs cell-free DNA methylation assay chemistry tuned for low tumour fraction with machine learning operating under biologically informed constraints, and supports cancer signal detection, tumour content estimation and tissue-of-origin inference. RESOLVE, the company's clinical application of that platform, is positioned to generate clarity in the uncertain window between suspicion of cancer and diagnosis, across cancer types and clinical contexts, and is run out of a CLIA-certified and CAP-accredited high-complexity laboratory. The company raised a 100 million dollar round to expand its blood-based detection suite and is led by CEO Ajit Singh with Chief Innovation Officer Tony Shuber, a co-founder of Exact Sciences. Harbinger Health's API posture is minimal and clinical rather than commercial: there is no developer portal, no published documentation, no OpenAPI, no SDKs, no pricing and no self-serve API access, and the developer., docs., api., portal., status. and trust. subdomains do not resolve. What it does publish is unusual for a company with no developer programme - the corporate site serves a live, anonymously readable WordPress REST API (268 routes across 15 namespaces), an RFC 8414 OAuth 2.1 authorization-server metadata document, an RFC 9728 protected-resource document, and a real Model Context Protocol server namespace gated behind an mcp scope, alongside the WordPress Abilities API. That makes Harbinger Health machine-discoverable at the agent layer while none of its clinical, laboratory or diagnostic capability is exposed programmatically to third parties.

agent ready

Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.

travel_explore apis.io index code GitHub source public Website

API Evangelist profiles Harbinger Health the way a machine reads it — 85 machine-readable artifacts across 37 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 — Harbinger Health scores 39.4/100 (thin), with a separate agent-readiness read of 50/100 (agent ready). 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 2026-08-17 · rubric v0.11.0

Composite quality — 39.4/100 · thin

Contract Quality 14.0 / 25

Developer Ergonomics 5.5 / 20

Commercial Clarity 5.8 / 20

Operational Transparency 0.0 / 13

Governance 2.5 / 12

Discoverability 8.2 / 10

Regulatory · Health 8.8 / 15

Agent readiness — 50/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract derived 2.5 / 10

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8.0 / 8

Request/Response Examples partial 3.5 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills derived 1.3 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Put this on your own site. The badge is drawn live from Harbinger Health'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/harbinger-health/"
   title="Harbinger Health on API Evangelist — API profile and Kin Score">
  <img src="https://apis.io/badge/harbinger-health.svg"
       alt="Harbinger Health Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>

[![Harbinger Health Kin Score — API readiness rating by API Evangelist](https://apis.io/badge/harbinger-health/flat.svg)](https://providers.apievangelist.com/providers/harbinger-health/)

<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/harbinger-health/"
   title="Harbinger Health on API Evangelist — API profile and Kin Score">
  <img src="https://apis.io/badge/harbinger-health/card.svg"
       alt="Harbinger Health 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 Harbinger Health

Each block below is one kind of artifact we hold for Harbinger Health. 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 37

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.

Harbinger Health MCP Server

A live Model Context Protocol server namespace published on Harbinger Health's own host at https://harbinger-health.com/wp-json/mcp/, exposing two servers - mcp-oauth-server and...

Harbinger Health Block Directory API

WordPress block-directory resource routes.

Harbinger Health Block Patterns API

WordPress block-patterns resource routes.

Harbinger Health Block Renderer API

WordPress block-renderer resource routes.

Harbinger Health Block Types API

WordPress block-types resource routes.

Harbinger Health Blocks API

WordPress blocks resource routes.

Harbinger Health Categories API

WordPress categories resource routes.

Harbinger Health Comments API

WordPress comments resource routes.

Harbinger Health Events API

WordPress events resource routes.

Harbinger Health Font Collections API

WordPress font-collections resource routes.

Harbinger Health Font Families API

WordPress font-families resource routes.

Harbinger Health Global Styles API

WordPress global-styles resource routes.

Harbinger Health Icons API

WordPress icons resource routes.

Harbinger Health Index API

WordPress index resource routes.

Harbinger Health Media API

WordPress media resource routes.

Harbinger Health Menu Items API

WordPress menu-items resource routes.

Harbinger Health Menu Locations API

WordPress menu-locations resource routes.

Harbinger Health Menus API

WordPress menus resource routes.

Harbinger Health Navigation API

WordPress navigation resource routes.

Harbinger Health Pages API

WordPress pages resource routes.

Harbinger Health Pattern Directory API

WordPress pattern-directory resource routes.

Harbinger Health Plugins API

WordPress plugins resource routes.

Harbinger Health Posts API

WordPress posts resource routes.

Harbinger Health Search API

WordPress search resource routes.

Harbinger Health Settings API

WordPress settings resource routes.

Harbinger Health Sidebars API

WordPress sidebars resource routes.

Harbinger Health Statuses API

WordPress statuses resource routes.

Harbinger Health Tags API

WordPress tags resource routes.

Harbinger Health Taxonomies API

WordPress taxonomies resource routes.

Harbinger Health Template Parts API

WordPress template-parts resource routes.

Harbinger Health Templates API

WordPress templates resource routes.

Harbinger Health Themes API

WordPress themes resource routes.

Harbinger Health Types API

WordPress types resource routes.

Harbinger Health Users API

WordPress users resource routes.

Harbinger Health Widget Types API

WordPress widget-types resource routes.

Harbinger Health Widgets API

WordPress widgets resource routes.

Harbinger Health Wp Pattern Category API

WordPress wp_pattern_category resource routes.

Scroll within the panel for all 37 ·

Open Collections 38

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

OPEN COLLECTION

Scroll within the panel for all 38 ·

MCP Servers 1

Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.

Model Context Protocol servers that expose these APIs to AI agents.

OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.

OAuth scopes governing access to this provider's APIs.

Harbinger Health Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Harbinger Health Agentic Access

236 operations · 130 acting

AGENTIC

Resources

Every other property we hold for Harbinger Health — 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 5

MCP servers, agent skills, and machine-readable catalogs

WellKnown

MCPServer

LLMsTxt

AgentSkill

AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Packages

Packages

Examples

Examples

Access & Security 4

Authentication, authorization, and security posture

Authentication

OAuthScopes

Compliance

DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 2

Status, limits, changes, and where to get help

Support

Support

Contact

Contact

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 10

The organization behind the API

Website

About

Blog

Careers

Partners

PressRoom

LinkedIn

Twitter

Twitter

Instagram

Instagram

Facebook

Facebook

Scroll within the panel for all 10 ·

Other 4

Properties that don't map to a standard resource type

Product

Product

Sitemap

Overlay

← All providers · Data indexed from github.com/api-evangelist/harbinger-health · machine-readable index on apis.io

Where this information came from

This is an independent, third-party profile of Harbinger Health, 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.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.

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