Profusa

Profusa, Inc. (Nasdaq: PFSA) is a South San Francisco digital-health and medical-device company that builds tissue-integrated biosensors — injectable, biologically compatible hydrogel microsensors smaller than a grain of rice — for continuous, real-time monitoring of body chemistry. Its Lumee Oxygen Platform reports tissue oxygen for peripheral artery disease, chronic wounds and reconstructive surgery, and a long-duration Lumee glucose sensor is in development. A companion Data Platform turns raw sensor readings into clinical intelligence for clinicians, with EMR integration described as planned rather than shipped. Profusa has received more than USD 23M in NIH and DARPA funding and became publicly traded in July 2025 through a business combination with NorthView Acquisition Corporation. As of this profiling pass the company publishes no developer program, no public API documentation and no machine-readable API contract.

Profusa is profiled on the APIs.io network. Tagged areas include Company, Health, Medical Devices, Biosensors, and Digital Health.

Profusa’s developer surface includes support, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

5.1/100 minimal ▬ flat Agent 0/100 human only Front door AI 3/6 light Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

0 APIs

Company Health Medical Devices Biosensors Digital Health Continuous Monitoring Diagnostics Life Sciences

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 5.1/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 0.7 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 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

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/.

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 github.com/api-evangelist/profusa: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Security Posture 1

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

Profusa Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Company 7

The organization behind the API

Website

About

Blog

BlogRSS

Careers

InvestorRelations

InvestorRelations

LinkedIn

Scroll for all 7

Source (apis.yml)

aid: profusa
name: Profusa
description: 'Profusa, Inc. (Nasdaq: PFSA) is a South San Francisco digital-health and medical-device company that builds
  tissue-integrated biosensors — injectable, biologically compatible hydrogel microsensors smaller than a grain of rice —
  for continuous, real-time monitoring of body chemistry. Its Lumee Oxygen Platform reports tissue oxygen for peripheral artery
  disease, chronic wounds and reconstructive surgery, and a long-duration Lumee glucose sensor is in development. A companion
  Data Platform turns raw sensor readings into clinical intelligence for clinicians, with EMR integration described as planned
  rather than shipped. Profusa has received more than USD 23M in NIH and DARPA funding and became publicly traded in July
  2025 through a business combination with NorthView Acquisition Corporation. As of this profiling pass the company publishes
  no developer program, no public API documentation and no machine-readable API contract.'
url: https://raw.githubusercontent.com/api-evangelist/profusa/refs/heads/main/apis.yml
x-api-posture: no-product-api
x-api-posture-basis: observed
x-api-posture-note: As of this profiling pass the company publishes no developer program, no public API documentation and
  no machine-readable API contract.
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  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: '2026-09-02'
  method: derived
image: https://profusa.com/wp-content/uploads/2015/12/cropped-profusa-logo-1-270x270.png
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
created: '2026-08-26'
modified: '2026-08-26'
tags:
- Company
- Health
- Medical Devices
- Biosensors
- Digital Health
- Continuous Monitoring
- Diagnostics
- Life Sciences
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/profusa-domain-security.yml
- type: Website
  url: https://profusa.com/
- type: About
  url: https://profusa.com/about-profusa/
- type: Support
  url: https://profusa.com/contact-profusa/
- type: Blog
  url: https://investors.profusa.com/press-releases
- type: BlogRSS
  url: https://profusa.com/feed/
- type: Careers
  url: https://profusa.com/careers-profusa/
- type: InvestorRelations
  url: https://investors.profusa.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/profusa
- type: LLMsTxt
  url: llms/profusa-llms.txt
x-enrichment:
  date: '2026-08-26'
  status: minimal
  artifacts_added: 3
  pass: local-v1
x-coverage:
  state: none
  reason: no-developer-program
  detail: Profusa ships a clinical Data Platform and a phone app for its Lumee biosensors but publishes nothing for developers
    — profusa.com is a WordPress marketing site whose only machine-readable surface is the generic WordPress core REST discovery
    document at /wp-json/, and every developer path (/developers, /api, /docs, /openapi.json, /llms.txt, /.well-known/*) returns
    404, while investors.profusa.com answers 200 with an SPA shell for every path including /.well-known/agent-card.json.
  evidence:
  - url: https://profusa.com/developers
    status: 404
  - url: https://profusa.com/openapi.json
    status: 404
  - url: https://profusa.com/llms.txt
    status: 404
  - url: https://profusa.com/.well-known/agent-card.json
    status: 404
  - url: https://profusa.com/wp-json/
    status: 200
  - url: https://investors.profusa.com/.well-known/agent-card.json
    status: 200
  checked: '2026-08-26'

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