Phosphorus

Phosphorus Cybersecurity is a Nashville, Tennessee cyber-physical systems (CPS) security company founded in 2017 by Chris Rouland, Earle Ady and Rebecca Rouland, and acquired by Dragos on 1 June 2026. Its agentless xIoT platform discovers, assesses, hardens and remediates IoT, OT, IIoT and IoMT devices across enterprise and critical infrastructure networks, automating credential rotation, firmware updates, certificate management, and vulnerability assessment at scale without additional hardware or endpoint agents. The platform exposes a customer-facing REST API (v2 and v3) described by an OpenAPI 3.0.0 contract that Phosphorus serves from each tenant instance at /api/swagger/public/swagger.json, covering devices, alerts, firmware, certificates, credentials, sites, search, dynamic scans, integration providers, and the Phosphorus Vault, authenticated with an X-API-KEY request header.

Phosphorus publishes 8 APIs on the APIs.io network, including Alerts API, Device API, Devices API, and 5 more. Tagged areas include Cybersecurity, xIoT Security, IoT Security, OT Security, and IoMT.

Phosphorus’ developer surface includes support, engineering blog, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub
31.7/100 thin ▬ flat Agent 25/100 agent aware saas Full breakdown ↓
scored 2026-09-01 · rubric v0.17.2
2 APIs
CybersecurityxIoT SecurityIoT SecurityOT SecurityIoMTAsset DiscoveryVulnerability ManagementFirmware ManagementCertificate ManagementCredential ManagementCritical InfrastructureDevice Management

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-01 · rubric v0.17.2
Composite quality — 31.7/100 · thin
Contract Quality 11.6 / 25
Developer Ergonomics 4.2 / 20
Access Clarity 6.8 / 20
Operational Transparency 1.7 / 13
Contract Governance 0.5 / 12
Discoverability 6.9 / 10
Agent readiness — 25/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 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 Surface 0 / 5
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/phosphorus: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 8

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

Phosphorus Alerts API

The Alerts API from Phosphorus — 1 operation(s) for alerts.

Phosphorus Device API

The Device API from Phosphorus — 8 operation(s) for device.

Phosphorus Devices API

The Devices API from Phosphorus — 1 operation(s) for devices.

Phosphorus Dynamic Scans API

The Dynamic Scans API from Phosphorus — 5 operation(s) for dynamic scans.

Phosphorus Providers API

The Providers API from Phosphorus — 5 operation(s) for providers.

Phosphorus Search API

The Search API from Phosphorus — 1 operation(s) for search.

Phosphorus Sites API

The Sites API from Phosphorus — 1 operation(s) for sites.

Phosphorus Vault API

The Vault API from Phosphorus — 2 operation(s) for vault.

Scroll for all 8

Pricing Plans 1

Published pricing tiers and plan structures.

Phosphorus Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Phosphorus Rate Limits

0 limits

RATE LIMITS

Security Posture 3

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

Phosphorus Authentication

apiKey · 1 scheme

SECURITY

Phosphorus Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Phosphorus Vulnerability Disclosure

Hackerone · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login
Login

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 Lifecycle
Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security

Operate 3

Status, limits, changes, and where to get help

Support
Support
 HelpCenter
HelpCenter
 Contact
Contact

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Plans
Plans

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 2

Properties that don't map to a standard resource type

Overlay
Overlay
 SecondaryMarketListing
SecondaryMarketListing

Source (apis.yml)

apis.yml Raw ↑ 
aid: phosphorus
name: Phosphorus
description: Phosphorus Cybersecurity is a Nashville, Tennessee cyber-physical systems (CPS) security company founded in 2017
  by Chris Rouland, Earle Ady and Rebecca Rouland, and acquired by Dragos on 1 June 2026. Its agentless xIoT platform discovers,
  assesses, hardens and remediates IoT, OT, IIoT and IoMT devices across enterprise and critical infrastructure networks,
  automating credential rotation, firmware updates, certificate management, and vulnerability assessment at scale without
  additional hardware or endpoint agents. The platform exposes a customer-facing REST API (v2 and v3) described by an OpenAPI
  3.0.0 contract that Phosphorus serves from each tenant instance at /api/swagger/public/swagger.json, covering devices, alerts,
  firmware, certificates, credentials, sites, search, dynamic scans, integration providers, and the Phosphorus Vault, authenticated
  with an X-API-KEY request header.
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
image: https://phosphorus.io/wp-content/uploads/2026/01/300x300.jpg
url: https://raw.githubusercontent.com/api-evangelist/phosphorus/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-26'
modified: '2026-08-26'
tags:
- Cybersecurity
- xIoT Security
- IoT Security
- OT Security
- IoMT
- Asset Discovery
- Vulnerability Management
- Firmware Management
- Certificate Management
- Credential Management
- Critical Infrastructure
- Device Management
apis:
- aid: phosphorus:phosphorus-alerts-api
  name: Phosphorus Alerts API
  description: The Alerts API from Phosphorus — 1 operation(s) for alerts.
  humanURL: https://phosphorus.io/platform/
  baseURL: https://{tenant}.phosphorus.io
  tags:
  - Alerts
  properties:
  - type: OpenAPI
    url: openapi/phosphorus-alerts-api-openapi.yml
  - type: Authentication
    url: authentication/phosphorus-authentication.yml
  - type: Conventions
    url: conventions/phosphorus-conventions.yml
  - type: ErrorCatalog
    url: errors/phosphorus-problem-types.yml
  - type: DataModel
    url: data-model/phosphorus-data-model.yml
  - type: RateLimits
    url: rate-limits/phosphorus-rate-limits.yml
- aid: phosphorus:phosphorus-device-api
  name: Phosphorus Device API
  description: The Device API from Phosphorus — 8 operation(s) for device.
  humanURL: https://phosphorus.io/platform/
  baseURL: https://{tenant}.phosphorus.io
  tags:
  - Device
  properties:
  - type: OpenAPI
    url: openapi/phosphorus-device-api-openapi.yml
  - type: Authentication
    url: authentication/phosphorus-authentication.yml
  - type: Conventions
    url: conventions/phosphorus-conventions.yml
  - type: ErrorCatalog
    url: errors/phosphorus-problem-types.yml
  - type: DataModel
    url: data-model/phosphorus-data-model.yml
  - type: RateLimits
    url: rate-limits/phosphorus-rate-limits.yml
- aid: phosphorus:phosphorus-devices-api
  name: Phosphorus Devices API
  description: The Devices API from Phosphorus — 1 operation(s) for devices.
  humanURL: https://phosphorus.io/platform/
  baseURL: https://{tenant}.phosphorus.io
  tags:
  - Devices
  properties:
  - type: OpenAPI
    url: openapi/phosphorus-devices-api-openapi.yml
  - type: Authentication
    url: authentication/phosphorus-authentication.yml
  - type: Conventions
    url: conventions/phosphorus-conventions.yml
  - type: ErrorCatalog
    url: errors/phosphorus-problem-types.yml
  - type: DataModel
    url: data-model/phosphorus-data-model.yml
  - type: RateLimits
    url: rate-limits/phosphorus-rate-limits.yml
- aid: phosphorus:phosphorus-dynamic-scans-api
  name: Phosphorus Dynamic Scans API
  description: The Dynamic Scans API from Phosphorus — 5 operation(s) for dynamic scans.
  humanURL: https://phosphorus.io/platform/
  baseURL: https://{tenant}.phosphorus.io
  tags:
  - Dynamic Scans
  properties:
  - type: OpenAPI
    url: openapi/phosphorus-dynamic-scans-api-openapi.yml
  - type: Authentication
    url: authentication/phosphorus-authentication.yml
  - type: Conventions
    url: conventions/phosphorus-conventions.yml
  - type: ErrorCatalog
    url: errors/phosphorus-problem-types.yml
  - type: DataModel
    url: data-model/phosphorus-data-model.yml
  - type: RateLimits
    url: rate-limits/phosphorus-rate-limits.yml
- aid: phosphorus:phosphorus-providers-api
  name: Phosphorus Providers API
  description: The Providers API from Phosphorus — 5 operation(s) for providers.
  humanURL: https://phosphorus.io/platform/
  baseURL: https://{tenant}.phosphorus.io
  tags:
  - Providers
  properties:
  - type: OpenAPI
    url: openapi/phosphorus-providers-api-openapi.yml
  - type: Authentication
    url: authentication/phosphorus-authentication.yml
  - type: Conventions
    url: conventions/phosphorus-conventions.yml
  - type: ErrorCatalog
    url: errors/phosphorus-problem-types.yml
  - type: DataModel
    url: data-model/phosphorus-data-model.yml
  - type: RateLimits
    url: rate-limits/phosphorus-rate-limits.yml
- aid: phosphorus:phosphorus-search-api
  name: Phosphorus Search API
  description: The Search API from Phosphorus — 1 operation(s) for search.
  humanURL: https://phosphorus.io/platform/
  baseURL: https://{tenant}.phosphorus.io
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/phosphorus-search-api-openapi.yml
  - type: Authentication
    url: authentication/phosphorus-authentication.yml
  - type: Conventions
    url: conventions/phosphorus-conventions.yml
  - type: ErrorCatalog
    url: errors/phosphorus-problem-types.yml
  - type: DataModel
    url: data-model/phosphorus-data-model.yml
  - type: RateLimits
    url: rate-limits/phosphorus-rate-limits.yml
- aid: phosphorus:phosphorus-sites-api
  name: Phosphorus Sites API
  description: The Sites API from Phosphorus — 1 operation(s) for sites.
  humanURL: https://phosphorus.io/platform/
  baseURL: https://{tenant}.phosphorus.io
  tags:
  - Sites
  properties:
  - type: OpenAPI
    url: openapi/phosphorus-sites-api-openapi.yml
  - type: Authentication
    url: authentication/phosphorus-authentication.yml
  - type: Conventions
    url: conventions/phosphorus-conventions.yml
  - type: ErrorCatalog
    url: errors/phosphorus-problem-types.yml
  - type: DataModel
    url: data-model/phosphorus-data-model.yml
  - type: RateLimits
    url: rate-limits/phosphorus-rate-limits.yml
- aid: phosphorus:phosphorus-vault-api
  name: Phosphorus Vault API
  description: The Vault API from Phosphorus — 2 operation(s) for vault.
  humanURL: https://phosphorus.io/platform/
  baseURL: https://{tenant}.phosphorus.io
  tags:
  - Vault
  properties:
  - type: OpenAPI
    url: openapi/phosphorus-vault-api-openapi.yml
  - type: Authentication
    url: authentication/phosphorus-authentication.yml
  - type: Conventions
    url: conventions/phosphorus-conventions.yml
  - type: ErrorCatalog
    url: errors/phosphorus-problem-types.yml
  - type: DataModel
    url: data-model/phosphorus-data-model.yml
  - type: RateLimits
    url: rate-limits/phosphorus-rate-limits.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/phosphorus-api-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml
- type: Website
  url: https://phosphorus.io/
- type: Support
  url: https://phosphorus.io/support/
- type: HelpCenter
  url: https://support.phosphorus.io/
- type: Blog
  url: https://phosphorus.io/resource-center/blog/
- type: GitHubOrganization
  url: https://github.com/phosphorusinc
- type: TermsOfService
  url: https://phosphorus.io/terms-of-service/
- type: PrivacyPolicy
  url: https://phosphorus.io/privacy-policy/
- type: Login
  name: Partner Portal login
  url: https://partners.phosphorus.io/login
- type: Contact
  url: https://phosphorus.io/contact-us/
- type: Packages
  url: packages/phosphorus-packages.yml
- type: Conformance
  url: conformance/phosphorus-conformance.yml
- type: Lifecycle
  url: lifecycle/phosphorus-lifecycle.yml
- type: DomainSecurity
  url: security/phosphorus-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/phosphorus-vulnerability-disclosure.yml
- type: Security
  url: security/phosphorus-vulnerability-disclosure.yml
- type: LLMsTxt
  url: llms/phosphorus-llms.txt
- type: Plans
  url: plans/phosphorus-plans-pricing.yml
- type: SecondaryMarketListing
  url: https://forgeglobal.com/phosphorus_stock/
x-enrichment:
  date: '2026-08-26'
  status: enriched
  artifacts_added: 23
  pass: local-v1
x-coverage:
  state: covered
  reason: contract-found
  detail: 'Phosphorus''s OpenAPI 3.0.0 contract (24 paths, 30 operations) was recovered and saved, but the human-readable
    API reference is customer-only: docs.phosphorus.io is an S3 origin returning AccessDenied (403) to the public, api.phosphorus.io
    answers 503 to anonymous callers because it is a per-tenant load balancer, and support.phosphorus.io redirects to a phosecure.atlassian.net
    Service Desk login.'
  evidence:
  - url: https://phosphorus.io/api/swagger/public/swagger.json
    status: 404
  - url: https://raw.githubusercontent.com/rapid7/r7-surcom-connectors/main/connectors/rapid7/phosphorus/refdocs/swagger.json
    status: 200
  - url: https://docs.phosphorus.io/
    status: 403
  - url: https://api.phosphorus.io/
    status: 503
  checked: '2026-08-26'

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