Koi Security website screenshot

Koi Security

Koi (formerly Koi Security, now operating as koi.ai) is an endpoint security platform built for non-binary software — browser extensions, IDE and editor extensions, open-source packages, MCP servers, AI models, AI agents, and containers — the install surface that traditional EDR and MDM tooling was never designed to govern. The platform ships three products: Koi Endpoint (agentless discovery and governance of every binary and non-binary install across macOS, Windows, and Linux), Koi Wings (continuous risk evaluation of code, behavior, publisher ownership changes, and update channels), and Koi Gateway (a network-based gate in front of marketplaces, app stores, and registries). Koi is widely known for the security research it publishes on software supply-chain attacks including GlassWorm, Shai-Hulud, PhantomRaven, GreedyBear, and the first malicious MCP server found in the wild. Koi also operates ExtensionTotal, a free community risk-scoring service for Visual Studio Code extensions that exposes a public HTTP API and a first-party VS Code extension. Koi raised $48M and has been acquired by Palo Alto Networks.

Koi Security publishes 1 API on the APIs.io network: Risk API. Tagged areas include Company, Security, Endpoint Security, Supply Chain Security, and Browser Extensions.

Koi Security’s developer surface includes documentation, API reference, engineering blog, signup flow, support, authentication, and 22 more developer resources.

35.0/100 thin ▬ flat Agent 27/100 agent aware open core · MIT Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
1 APIs
CompanySecurityEndpoint SecuritySupply Chain SecurityBrowser ExtensionsDeveloper ToolsThreat IntelligenceMCP SecurityRisk Scoring

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 80 points between them, because the conditional facet above carries the other 20. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 80% 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/koi-security: 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 →

APIs 1

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

Koi Security Risk API

Extension risk assessment.

Open Collections 2

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

API Collection

OPEN COLLECTION

ExtensionTotal Risk API

OPEN COLLECTION

Security Posture 2

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

Koi Security Authentication

apiKey · 1 scheme

SECURITY

Koi Security Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Other 2

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: koi-security
name: Koi Security
description: 'Koi (formerly Koi Security, now operating as koi.ai) is an endpoint security platform built for non-binary software
  — browser extensions, IDE and editor extensions, open-source packages, MCP servers, AI models, AI agents, and containers
  — the install surface that traditional EDR and MDM tooling was never designed to govern. The platform ships three products:
  Koi Endpoint (agentless discovery and governance of every binary and non-binary install across macOS, Windows, and Linux),
  Koi Wings (continuous risk evaluation of code, behavior, publisher ownership changes, and update channels), and Koi Gateway
  (a network-based gate in front of marketplaces, app stores, and registries). Koi is widely known for the security research
  it publishes on software supply-chain attacks including GlassWorm, Shai-Hulud, PhantomRaven, GreedyBear, and the first malicious
  MCP server found in the wild. Koi also operates ExtensionTotal, a free community risk-scoring service for Visual Studio
  Code extensions that exposes a public HTTP API and a first-party VS Code extension. Koi raised $48M and has been acquired
  by Palo Alto Networks.'
deliveryModel:
  model: open-core
  license: MIT
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - url: https://www.koi.ai/
    status: 301
    note: declared website redirects to https://www.paloaltonetworks.com/cortex/agentic-endpoint-security — a different registrable
      domain (koi.ai -> paloaltonetworks.com), possible rename or acquisition (probed 2026-09-03, roadmap#169)
  generated: '2026-09-03'
  method: derived
image: https://cdn.prod.website-files.com/67bf17e426d92bdda54af956/689d7637775a71fd67d69618_link%20image.png
url: https://raw.githubusercontent.com/api-evangelist/koi-security/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- battery-ventures
x-acquired-by: palo-alto-networks
x-tier: profiled
x-tier-reason: public-api-and-artifacts
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Security
- Endpoint Security
- Supply Chain Security
- Browser Extensions
- Developer Tools
- Threat Intelligence
- MCP Security
- Risk Scoring
apis:
- aid: koi-security:koi-security-risk-api
  name: Koi Security Risk API
  description: Extension risk assessment.
  humanURL: https://www.koi.ai/blog/6-6-uncover-hidden-risks-cisos-guide-to-using-extensiontotal-api-for-your-organization
  baseURL: https://app.extensiontotal.com/api
  tags:
  - Risk
  properties:
  - type: OpenAPI
    url: openapi/koi-security-risk-api-openapi.yml
  - type: Documentation
    url: https://www.koi.ai/blog/6-6-uncover-hidden-risks-cisos-guide-to-using-extensiontotal-api-for-your-organization
  - type: SourceCode
    url: https://github.com/extensiontotal/extensiontotal-vscode
common:
- type: ParentCompany
  url: https://apis.io/providers/palo-alto-networks/
  name: Palo Alto Networks
  x-relationship: acquired
  x-evidence: Koi raised $48M and has been acquired by Palo Alto Networks.
- type: Overlay
  url: overlays/koi-security-extensiontotal-overlay.yaml
- type: IssueTracker
  url: https://github.com/extensiontotal/extensiontotal-vscode/issues
- type: ContributionGuide
  url: https://github.com/extensiontotal/extensiontotal-vscode/blob/main/.github/CONTRIBUTING.md
- type: License
  name: MIT
  url: https://github.com/extensiontotal/extensiontotal-vscode/blob/main/LICENSE
- type: Website
  url: https://www.koi.ai/
- type: DeveloperPortal
  url: https://docs.koi.ai/
- type: Documentation
  url: https://docs.koi.ai/
- type: APIReference
  url: https://www.koi.ai/blog/6-6-uncover-hidden-risks-cisos-guide-to-using-extensiontotal-api-for-your-organization
- type: Blog
  url: https://www.koi.ai/blog
- type: GitHubOrganization
  url: https://github.com/koi-security
- type: SignUp
  url: https://www.koi.ai/get-a-demo
- type: Support
  url: https://www.koi.ai/chat-with-us
- type: TermsOfService
  url: https://www.koi.ai/terms-and-conditions
- type: PrivacyPolicy
  url: https://www.koi.ai/privacy-policy
- type: StatusPage
  url: https://status.koi.ai/
- type: Lifecycle
  url: lifecycle/koi-security-lifecycle.yml
- type: Authentication
  url: authentication/koi-security-authentication.yml
- type: Conventions
  url: conventions/koi-security-conventions.yml
- type: ErrorCatalog
  url: errors/koi-security-problem-types.yml
- type: Conformance
  url: conformance/koi-security-conformance.yml
- type: DataModel
  url: data-model/koi-security-data-model.yml
- type: Packages
  url: packages/koi-security-packages.yml
- type: WellKnown
  url: well-known/koi-security-well-known.yml
- type: DomainSecurity
  url: security/koi-security-domain-security.yml
- type: X-MCPServerCandidate
  url: mcp/koi-security-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/koi-security-llms.txt
- type: AgentSkill
  url: skills/_index.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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