Guardant Health

Guardant Health is a precision oncology company whose blood- and tissue-based liquid biopsy tests (Guardant360, Guardant Reveal, Guardant Shield, GuardantINFINITY) detect cancer and guide treatment. Its integration surface is partner- and EMR-based - electronic test ordering and results delivery through Epic Aura and Flatiron OncoEMR, patient portals (MyGuardant, My Data), and biopharma data platforms (GuardantINFORM, GuardantConnect, Guardant Galaxy). No public self-serve developer API is documented.

Guardant Health publishes 1 API contract indexed on the APIs.io network: Orders API and Results API. Tagged areas include Healthcare, Precision Oncology, Liquid Biopsy, Genomics, and EMR Integration.

The Guardant Health catalog on APIs.io includes 1 Spectral governance ruleset.

Guardant Health’s developer surface includes authentication, documentation, engineering blog, and 11 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

20.6/100 emerging ▬ flat Agent 22/100 agent aware Front door AI 1/6 silent Heartbeat 99/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessEnterpriseSelf serve

1 published contract1 Not an API

Healthcare Precision Oncology Liquid Biopsy Genomics EMR Integration Diagnostics

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Diagnostic Services Management

BC-2860

Results

GET /orders/{orderId}/results

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 20.6/100 · emerging

Contract Quality 2.2 / 19

Developer Ergonomics 3.8 / 15

Access Clarity 2.4 / 15

Operational Transparency 0.5 / 10

Contract Governance 1.2 / 9

Discoverability 4.3 / 8

Regulatory Posture 4.0 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Health regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

9 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 11.7 — up to +22.1 composite points
Access Clarity scores 15.8 — up to +16.8 composite points
Developer Ergonomics scores 25.0 — up to +15.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/guardant-health/apis.yml: open an issue on github.com/api-evangelist/guardant-health to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
IVD, Diagnostics and Surgical Devices (FDA / EU regulated device makers)	regulated	56.7	-	-
US NPI Health Provider Registry (CMS NPPES)	regulated	56.7	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 7

Individual APIs this provider publishes. MODELED: a real API behind a partner or contract gate; there is no public reference, so API Evangelist drew its shape. NOT AN API: a product area with no API behind it, not counted.

Guardant Nexus

Guardant Nexus partnership program for institutional and provider partners, coordinating ordering, integration and account workflows. Access is partner-gated; no public API surf...

GuardantINFORM

In-silico real-world clinical-genomic data platform combining de-identified longitudinal clinical information with genomic data from Guardant360, used by biopharma for drug deve...

GuardantConnect

Integrated software solution that connects patients tested with Guardant assays who have actionable alterations to potentially relevant clinical studies, for clinical and biopha...

Guardant Galaxy

Suite of advanced AI analytics and digital pathology technologies that enhance Guardant test performance and power biomarker and drug discovery. Embedded in Guardant's products;...

NOT AN API

MyGuardant Patient Portal

Authenticated patient-facing portals (MyGuardant and My Data) where patients access test status, results and personal health data. Web application behind login; no documented pu...

Guardant Health Orders API

Electronic ordering of Guardant assays from the EMR.

Guardant Health Results API

Molecular profiling results delivered back to the patient chart.

Scroll for all 7

Open Collections 3

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Guardant Health EMR Integration API (Illustrative Model) Orders API

OPEN COLLECTION

Guardant Health EMR Integration API (Illustrative Model) Orders Results API

OPEN COLLECTION

Guardant Health EMR Integration (Illustrative Model)

OPEN COLLECTION

Guardant Health API pricing

Not yet checked against Guardant Health's own pricing page. Compiled by API Evangelist on 2026-06-20 from guardanthealth.com/precision-oncology/for-institutional-p...; confirm before you rely on a figure.

Plan	Price
Clinical Testing (Per-Test) usage	—
Institutional Partner Integration enterprise	—
Biopharma Data and Software enterprise	—

Plan details, limits and sources →

Rate limits

API Rate Limits: not publicly documented requests
Order Throughput: not publicly documented orders

Compiled by API Evangelist, not yet checked against Guardant Health's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Guardant Health Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Guardant Health Rate Limits

2 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Guardant Health

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Guardant Health Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Guardant Health API Rules

58 rules · 56 errors 1 warnings 1 info

SPECTRAL

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Guardant Health Authentication

oauth2 · 1 scheme

SECURITY

Guardant Health Domain Security

TLSv1.3 · DMARC

SECURITY

Guardant Health Trust Center

SOC 2, ISO 27001, ISO 27017, ISO 27018, PCI DSS, HIPAA, FedRAMP, GDPR, CSA STAR

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Guardant Health Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Guardant Health Agentic Access

3 operations · 1 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

DomainSecurity

Authentication

OAuthScopes

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 4

The organization behind the API

BlogRSS

BlogRSS

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: guardant-health
url: https://raw.githubusercontent.com/api-evangelist/guardant-health/refs/heads/main/apis.yml
x-api-posture: docs-gated
x-api-posture-basis: observed
name: Guardant Health
kind: company
description: Guardant Health is a precision oncology company whose blood- and tissue-based liquid biopsy tests (Guardant360,
  Guardant Reveal, Guardant Shield, GuardantINFINITY) detect cancer and guide treatment. Its integration surface is partner-
  and EMR-based - electronic test ordering and results delivery through Epic Aura and Flatiron OncoEMR, patient portals (MyGuardant,
  My Data), and biopharma data platforms (GuardantINFORM, GuardantConnect, Guardant Galaxy). No public self-serve developer
  API is documented.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: enterprise
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Enterprise · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/guardant-health.png
tags:
- Healthcare
- Precision Oncology
- Liquid Biopsy
- Genomics
- EMR Integration
- Diagnostics
created: '2026-06-20'
modified: '2026-10-06'
specificationVersion: '0.23'
apis:
- aid: guardant-health:guardant-nexus
  name: Guardant Nexus
  tags:
  - Partner Platform
  - Providers
  tags_raw:
  - Partner Platform
  - Provider
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://guardanthealth.com/precision-oncology/for-institutional-partners/
  baseURL: ''
  properties:
  - url: https://guardanthealth.com/precision-oncology/for-institutional-partners/
    type: Documentation
  description: Guardant Nexus partnership program for institutional and provider partners, coordinating ordering, integration
    and account workflows. Access is partner-gated; no public API surface is documented.
- aid: guardant-health:guardant-inform
  name: GuardantINFORM
  tags:
  - Biopharma
  - Real-World Data
  - Clinical Genomic
  tags_raw:
  - Biopharma
  - Real World Data
  - Clinical Genomic
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://guardanthealth.com/precision-oncology/biopharma-solutions/real-world-evidence/
  baseURL: ''
  properties:
  - url: https://guardanthealth.com/precision-oncology/biopharma-solutions/real-world-evidence/
    type: Documentation
  description: In-silico real-world clinical-genomic data platform combining de-identified longitudinal clinical information
    with genomic data from Guardant360, used by biopharma for drug development analytics. Delivered as a managed platform,
    not a public API.
- aid: guardant-health:guardant-connect
  name: GuardantConnect
  tags:
  - Biopharma
  - Clinical Trials
  - Trial Matching
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://guardanthealth.com/precision-oncology/biopharma-solutions/
  baseURL: ''
  properties:
  - url: https://guardanthealth.com/precision-oncology/biopharma-solutions/
    type: Documentation
  description: Integrated software solution that connects patients tested with Guardant assays who have actionable alterations
    to potentially relevant clinical studies, for clinical and biopharmaceutical customers. Partner-gated; no public API.
- aid: guardant-health:guardant-galaxy
  x-published: false
  name: Guardant Galaxy
  tags:
  - AI Analytics
  - Biomarker Discovery
  - Digital Pathology
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://guardanthealth.com/
  baseURL: ''
  properties:
  - url: https://guardanthealth.com/
    type: Website
  description: Suite of advanced AI analytics and digital pathology technologies that enhance Guardant test performance and
    power biomarker and drug discovery. Embedded in Guardant's products; no public developer API is documented.
- aid: guardant-health:myguardant-patient-portal
  name: MyGuardant Patient Portal
  tags:
  - Patient Portal
  - Results
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://portal.guardanthealth.com/myguardant
  baseURL: ''
  properties:
  - url: https://portal.guardanthealth.com/myguardant
    type: Website
  - url: https://mydata.guardanthealth.com/
    type: Website
  description: Authenticated patient-facing portals (MyGuardant and My Data) where patients access test status, results and
    personal health data. Web application behind login; no documented public patient API.
- aid: guardant-health:guardant-health-orders-api
  name: Guardant Health Orders API
  description: Electronic ordering of Guardant assays from the EMR.
  humanURL: https://guardanthealth.com/precision-oncology/for-institutional-partners/emr-integration-services/
  tags:
  - Order
  tags_raw:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/guardant-health-orders-api-openapi.yml
  - type: Documentation
    url: https://guardanthealth.com/precision-oncology/for-institutional-partners/emr-integration-services/
  - type: PostmanCollection
    url: collections/guardant-health.postman_collection.json
  - type: OpenCollection
    url: collections/guardant-health.opencollection.json
- aid: guardant-health:guardant-health-results-api
  name: Guardant Health Results API
  description: Molecular profiling results delivered back to the patient chart.
  humanURL: https://guardanthealth.com/precision-oncology/for-institutional-partners/emr-integration-services/
  tags:
  - Results
  properties:
  - type: OpenAPI
    url: openapi/guardant-health-results-api-openapi.yml
  - type: Documentation
    url: https://guardanthealth.com/precision-oncology/for-institutional-partners/emr-integration-services/
  - type: PostmanCollection
    url: collections/guardant-health.postman_collection.json
  - type: OpenCollection
    url: collections/guardant-health.opencollection.json
common:
- url: https://www.guardanthealth.com/feed/
  type: BlogRSS
- type: CapabilityMap
  url: capabilities/guardant-health-capability-edges.yml
  name: Guardant Health Business Capability Map
- type: AgenticAccess
  url: agentic-access/guardant-health-agentic-access.yml
- type: TrustCenter
  url: security/guardant-health-trust-center.yml
- type: DomainSecurity
  url: security/guardant-health-domain-security.yml
- type: Authentication
  url: authentication/guardant-health-authentication.yml
- type: OAuthScopes
  url: scopes/guardant-health-scopes.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/guardanthealth
- type: Website
  url: https://www.guardanthealth.com
- type: Documentation
  url: https://guardanthealth.com/precision-oncology/for-institutional-partners/emr-integration-services/
- type: Plans
  url: plans/guardant-health-plans-pricing.yml
- type: RateLimits
  url: rate-limits/guardant-health-rate-limits.yml
- type: FinOps
  url: finops/guardant-health-finops.yml
- type: Blog
  url: https://www.guardanthealth.com/newsroom/press-releases/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Guardant Health API — frequently asked questions

Does Guardant Health have an API?

Yes. APIs.io lists 7 APIs from Guardant Health, including Guardant Nexus, GuardantINFORM and GuardantConnect, and 4 more.

Is there an OpenAPI specification for the Guardant Health API?

Yes. APIs.io indexes 2 OpenAPI specifications for Guardant Health, each linked for download from this page.

How do I authenticate with the Guardant Health API?

Guardant Health documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Guardant Health Authentication.

How much does the Guardant Health API cost?

APIs.io lists 3 pricing plans for Guardant Health, with each plan's price, limits and inclusions under Pricing on this page.

Is the Guardant Health API ready for AI agents?

Guardant Health has a Kin Score of 20.6 out of 100 (emerging) and an Agent Readiness score of 22.4 (agent-aware), scored by API Evangelist on 2026-11-06.

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MCP server

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Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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