Firefly Health website screenshot

Firefly Health

Firefly Health is a virtual-first primary care practice and clinically integrated health plan founded in 2016 and headquartered in Watertown, Massachusetts. Members get a dedicated care team - a primary care physician, nurse practitioner, health guide and behavioral health specialist - reachable by chat and video through the Firefly Health app, backed by the Firefly Nearby network for in-person, at-home and specialty care. Firefly sells an employer-sponsored alternative health plan alongside its virtual primary care service, and in 2025 became the first national primary care practice to earn NCQA Virtual Care Accreditation. Firefly publishes no public developer program, portal, documentation or specification: the member web and mobile apps are served by a private first-party API at api-prod.firefly.health under an /api/v2/ base path. Included Health signed an agreement to acquire Firefly Health in July 2026.

Firefly Health is listed with 1 API on the APIs.io network. Tagged areas include Company, Healthcare, Health Plans, Virtual Care, and Primary Care.

Firefly Health’s developer surface includes signup flow, support, FAQ, engineering blog, YouTube channel, and 24 more developer resources.

21.1/100 emerging ▬ flat Agent 0/100 human only Front door AI 1/6 silent Heartbeat 14/100 dormant saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →
1 API
CompanyHealthcareHealth PlansVirtual CarePrimary CareTelehealthHealth InsuranceEmployee BenefitsDigital Health

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0
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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Show this score on your site. Kin Score badge preview for Firefly Health It updates itself when the score changes. Paste this where you link to your API docs:
<a href="https://apis.io/providers/firefly-health/"><img src="https://apis.io/badge/firefly-health/card.svg" alt="Firefly Health on APIs.io — Kin Score by API Evangelist"></a>
Other styles, a README pill and a shields.io endpoint are on the badge page.
Raise your score.
Agent readiness — checks not met, largest first (exact, from this profile):
  • Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document Ask about this →
  • MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
  • Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
  • Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
  • 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) Ask about this →
  • Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
13 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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.
Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →
Ask about:
Firefly Health · a person reads this and replies by email.
or email info@apis.io
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/firefly-health/apis.yml: open an issue on github.com/api-evangelist/firefly-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 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Firefly Health Member API

Private first-party HTTP API that backs the Firefly Health member web app and iOS/Android apps. Observed at https://api-prod.firefly.health with an /api/v2/ base path referenced...

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Firefly Health

10 quoted statements, read from Firefly Health's own page on 2026-11-09.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Firefly Health

11 quoted statements, read from Firefly Health's own page on 2026-11-09.

PRIVACY

Compliance 1

Attestations the provider states (SOC 2, ISO 27001 and others), quoted from its own trust page. APIs.io verifies none of them.

Firefly Health

1 quoted statement, read from Firefly Health's own page on 2026-11-09.

COMPLIANCE

Eligibility 1

Who may sign up and where, quoted from its own terms.

Firefly Health

5 quoted statements, read from Firefly Health's own page on 2026-11-09.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

Firefly Health

1 quoted statement, read from Firefly Health's own page on 2026-11-09.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Firefly Health

1 quoted statement, read from Firefly Health's own page on 2026-11-09.

LICENSE

Security Posture 1

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

Firefly Health Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

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

Learn 1

Tutorials, courses, talks, and written guidance

Operate 2

Status, limits, changes, and where to get help

Commercial 5

Pricing, plans, and the legal terms of use

Company 5

The organization behind the API

Other 7

Properties that don't map to a standard resource type

Scroll for all 7

Source (apis.yml)

apis.yml Raw ↑
aid: firefly-health
name: Firefly Health
description: 'Firefly Health is a virtual-first primary care practice and clinically integrated health plan founded in 2016
  and headquartered in Watertown, Massachusetts. Members get a dedicated care team - a primary care physician, nurse practitioner,
  health guide and behavioral health specialist - reachable by chat and video through the Firefly Health app, backed by the
  Firefly Nearby network for in-person, at-home and specialty care. Firefly sells an employer-sponsored alternative health
  plan alongside its virtual primary care service, and in 2025 became the first national primary care practice to earn NCQA
  Virtual Care Accreditation. Firefly publishes no public developer program, portal, documentation or specification: the member
  web and mobile apps are served by a private first-party API at api-prod.firefly.health under an /api/v2/ base path. Included
  Health signed an agreement to acquire Firefly Health in July 2026.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-13'
  method: derived
image: https://cdn.sanity.io/images/xgbrv2vi/production/4095bfda2782d4ea0e578f21c79132dfa867ffac-1200x630.png?w=1200&h=630
url: https://raw.githubusercontent.com/api-evangelist/firefly-health/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: profiled
x-tier-reason: enrichment-pass
specificationVersion: '0.23'
x-enrichment:
  date: '2026-08-01'
  status: enriched
  artifacts_added: 5
  pass: local-v1
created: '2026-08-01'
modified: '2026-08-01'
tags:
- Company
- Healthcare
- Health Plans
- Virtual Care
- Primary Care
- Telehealth
- Health Insurance
- Employee Benefits
- Digital Health
apis:
- aid: firefly-health:member-api
  name: Firefly Health Member API
  description: 'Private first-party HTTP API that backs the Firefly Health member web app and iOS/Android apps. Observed at
    https://api-prod.firefly.health with an /api/v2/ base path referenced by the members.firefly.health application bundle.
    The service answers on a gunicorn origin, sets Strict-Transport-Security, Content-Security-Policy, X-Frame-Options: DENY
    and X-Content-Type-Options, and varies on Cookie (session-based authentication). No public specification, no developer
    portal and no documentation are published; every probed discovery path (/openapi.json, /swagger.json, /api-docs, /docs,
    /redoc, /graphql, /.well-known/*) returned 404. Recorded here as an observed private API surface, not as a consumable
    public API.'
  humanURL: https://members.firefly.health/
  baseURL: https://api-prod.firefly.health/api/v2/
  x-access: private
  x-evidence:
    fetched: '2026-08-01'
    url: https://members.firefly.health/static/js/index.WM1KT9U9.js
    note: api-prod.firefly.health referenced in the member web application bundle; HEAD https://api-prod.firefly.health/api/v2/
      returned 404 from server gunicorn
    http_status: 404
  tags:
  - Virtual Care
  - Members
  properties:
  - type: Login
    url: https://members.firefly.health/
  - type: SignUp
    url: https://members.firefly.health/signup/user-type
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/firefly-health-domain-security.yml
- type: Conformance
  url: conformance/firefly-health-conformance.yml
- type: Lifecycle
  url: lifecycle/firefly-health-lifecycle.yml
- type: LLMsTxt
  url: llms/firefly-health-llms.txt
- type: Website
  url: https://www.fireflyhealth.com/
- type: Forge
  url: https://forgeglobal.com/firefly-health_stock/
- type: About
  url: https://www.fireflyhealth.com/about
- type: HowItWorks
  url: https://www.fireflyhealth.com/how-it-works
- type: SignUp
  url: https://members.firefly.health/signup/user-type
- type: Login
  url: https://members.firefly.health/
- type: Support
  url: https://www.fireflyhealth.com/contact
- type: FAQ
  url: https://www.fireflyhealth.com/faq
- type: Blog
  url: https://www.fireflyhealth.com/blog/newsroom
- type: TermsOfService
  url: https://www.fireflyhealth.com/terms-of-use
- type: PrivacyPolicy
  url: https://www.fireflyhealth.com/privacy-policy
- type: Compliance
  url: https://www.fireflyhealth.com/hipaa
- type: PriceTransparency
  url: https://www.fireflyhealth.com/pricing-transparency
- type: GitHubOrganization
  url: https://github.com/fireflyhealth
- type: LinkedIn
  url: https://www.linkedin.com/company/firefly-health/
- type: YouTube
  url: https://www.youtube.com/channel/UCkF9UhfHCuMvTtj8O_Jfv2Q
- type: Careers
  url: https://www.fireflyhealth.com/careers
- type: iOSApp
  url: https://apps.apple.com/us/app/firefly-health-telemedicine/id1396647655
- type: AndroidApp
  url: https://play.google.com/store/apps/details?id=com.fireflyhealth2
- type: UsageTerms
  url: terms/firefly-health-terms-of-service.yml
- type: DataProcessing
  url: privacy/firefly-health-privacy-policy.yml
- type: Attestations
  url: compliance/firefly-health-compliance.yml
- type: Eligibility
  url: eligibility/firefly-health-eligibility.yml
- type: AIPreferences
  url: ai-preferences/firefly-health-ai-preferences.yml
- type: DataLicense
  url: data-license/firefly-health-data-license.yml

Firefly Health API — frequently asked questions

Does Firefly Health have an API?

Yes. APIs.io lists 1 API from Firefly Health, including Firefly Health Member API.

Is the Firefly Health API ready for AI agents?

Firefly Health has a Kin Score of 21.1 out of 100 (emerging) and an Agent Readiness score of 0.0 (human-only), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

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.
All 92 tools →

Call it yourself

curl for this page
This provider
curl "https://apis.io/api/v1/providers/firefly-health"
All providers
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose
curl "https://apis.io/api/v1/providers/firefly-health/operations?limit=25"
How their score was established
curl "https://apis.io/api/v1/providers/firefly-health/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.