Border0

Border0 is an identity-aware Zero Trust network access platform for securing access to infrastructure — SSH and RDP servers, PostgreSQL/MySQL/MSSQL/MongoDB/Elasticsearch databases, Kubernetes clusters, AWS consoles and S3 buckets, and any internal HTTP or TCP service. Instead of VPNs and shared credentials, Border0 publishes each resource as a policy-gated "socket," authenticates users through their existing SSO/identity provider, and records every session for audit. Its REST admin API (api.border0.com/api/v1) manages sockets, access policies, connectors, organizations, identity providers, service accounts, tokens, sessions, and audit logs, and is complemented by an official Go SDK, a Terraform provider, a CLI, and GitHub Actions. Border0 was acquired by Tailscale in March 2026.

Border0 publishes 15 APIs on the APIs.io network, including Audit Actions API, Client API, Connect API, and 12 more. Tagged areas include Zero Trust, Network Access, Security, Identity and Access Management, and Infrastructure.

Border0’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, signup flow, changelog, and 23 more developer resources.

🌐 Visit website 📡 Source on GitHub

52.0/100 developing ▬ flat Agent 65/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5

AccessSelf serve

15 APIs 1 MCP Servers

Zero TrustNetwork AccessSecurityIdentity and Access ManagementInfrastructureVPNSSHDatabasesKubernetesCompany

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 52.0/100 · developing

Contract Quality 12.9 / 25

Developer Ergonomics 16.1 / 20

Commercial Clarity 6.8 / 20

Operational Transparency 6.2 / 13

Governance 0.0 / 12

Discoverability 10.0 / 10

Agent readiness — 65/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 15 / 15

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/border0: 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 15

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

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

MCPServer

LLMsTxt

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

ErrorCatalog

Lifecycle

DataModel

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 4

Authentication, authorization, and security posture

Security

Security

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: border0
name: Border0
description: Border0 is an identity-aware Zero Trust network access platform for securing access to infrastructure — SSH and
  RDP servers, PostgreSQL/MySQL/MSSQL/MongoDB/Elasticsearch databases, Kubernetes clusters, AWS consoles and S3 buckets, and
  any internal HTTP or TCP service. Instead of VPNs and shared credentials, Border0 publishes each resource as a policy-gated
  "socket," authenticates users through their existing SSO/identity provider, and records every session for audit. Its REST
  admin API (api.border0.com/api/v1) manages sockets, access policies, connectors, organizations, identity providers, service
  accounts, tokens, sessions, and audit logs, and is complemented by an official Go SDK, a Terraform provider, a CLI, and
  GitHub Actions. Border0 was acquired by Tailscale in March 2026.
url: https://raw.githubusercontent.com/api-evangelist/border0/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://cdn.prod.website-files.com/6329655518c5f56d63ac0eb8/673ac517dcc68218bae5a42d_img-border0-opengraph.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: enriched
x-tier-reason: portfolio-lead-enriched
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Zero Trust
- Network Access
- Security
- Identity and Access Management
- Infrastructure
- VPN
- SSH
- Databases
- Kubernetes
- Company
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: border0:border0-audit-actions-api
  name: Border0 Audit Actions API
  description: The Audit Actions API from Border0 — 2 operation(s) for audit actions.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Audit Actions
  properties:
  - type: OpenAPI
    url: openapi/border0-audit-actions-api-openapi.yml
- aid: border0:border0-client-api
  name: Border0 Client API
  description: The Client API from Border0 — 6 operation(s) for client.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Client
  properties:
  - type: OpenAPI
    url: openapi/border0-client-api-openapi.yml
- aid: border0:border0-connect-api
  name: Border0 Connect API
  description: The Connect API from Border0 — 1 operation(s) for connect.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Connect
  properties:
  - type: OpenAPI
    url: openapi/border0-connect-api-openapi.yml
- aid: border0:border0-login-api
  name: Border0 Login API
  description: The Login API from Border0 — 2 operation(s) for login.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Login
  properties:
  - type: OpenAPI
    url: openapi/border0-login-api-openapi.yml
- aid: border0:border0-mtls-ca-api
  name: Border0 Mtls-Ca API
  description: The Mtls-Ca API from Border0 — 3 operation(s) for mtls-ca.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Mtls-Ca
  properties:
  - type: OpenAPI
    url: openapi/border0-mtls-ca-api-openapi.yml
- aid: border0:border0-organization-api
  name: Border0 Organization API
  description: The Organization API from Border0 — 4 operation(s) for organization.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Organization
  properties:
  - type: OpenAPI
    url: openapi/border0-organization-api-openapi.yml
- aid: border0:border0-organizations-api
  name: Border0 Organizations API
  description: The Organizations API from Border0 — 15 operation(s) for organizations.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Organizations
  properties:
  - type: OpenAPI
    url: openapi/border0-organizations-api-openapi.yml
- aid: border0:border0-policies-api
  name: Border0 Policies API
  description: The Policies API from Border0 — 2 operation(s) for policies.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Policies
  properties:
  - type: OpenAPI
    url: openapi/border0-policies-api-openapi.yml
- aid: border0:border0-policy-api
  name: Border0 Policy API
  description: The Policy API from Border0 — 1 operation(s) for policy.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Policy
  properties:
  - type: OpenAPI
    url: openapi/border0-policy-api-openapi.yml
- aid: border0:border0-session-api
  name: Border0 Session API
  description: The Session API from Border0 — 3 operation(s) for session.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Session
  properties:
  - type: OpenAPI
    url: openapi/border0-session-api-openapi.yml
- aid: border0:border0-sessions-api
  name: Border0 Sessions API
  description: The Sessions API from Border0 — 2 operation(s) for sessions.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Sessions
  properties:
  - type: OpenAPI
    url: openapi/border0-sessions-api-openapi.yml
- aid: border0:border0-socket-api
  name: Border0 Socket API
  description: The Socket API from Border0 — 10 operation(s) for socket.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Socket
  properties:
  - type: OpenAPI
    url: openapi/border0-socket-api-openapi.yml
- aid: border0:border0-stats-api
  name: Border0 Stats API
  description: The Stats API from Border0 — 2 operation(s) for stats.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/border0-stats-api-openapi.yml
- aid: border0:border0-user-api
  name: Border0 User API
  description: The User API from Border0 — 4 operation(s) for user.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - User
  properties:
  - type: OpenAPI
    url: openapi/border0-user-api-openapi.yml
- aid: border0:border0-users-api
  name: Border0 Users API
  description: The Users API from Border0 — 5 operation(s) for users.
  humanURL: https://docs.border0.com/reference
  baseURL: https://api.border0.com/api/v1
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/border0-users-api-openapi.yml
common:
- type: Website
  url: https://www.border0.com
- type: DeveloperPortal
  url: https://portal.border0.com
- type: Documentation
  url: https://docs.border0.com
- type: APIReference
  url: https://docs.border0.com/reference
- type: GettingStarted
  url: https://docs.border0.com/docs/quick-start-copy
- type: Support
  url: https://docs.border0.com/docs/getting-help
- type: Blog
  url: https://www.border0.com/blog
- type: GitHubOrganization
  url: https://github.com/borderzero
- type: SignUp
  url: https://portal.border0.com/register
- type: Login
  url: https://portal.border0.com/login
- type: TermsOfService
  url: https://www.border0.com/terms-of-service
- type: PrivacyPolicy
  url: https://www.border0.com/privacy-policy
- type: StatusPage
  url: https://status.border0.com
- type: ChangeLog
  url: changelog/border0-changelog.yml
- type: Security
  url: https://docs.border0.com/docs/security-policy
- type: DomainSecurity
  url: security/border0-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/border0-vulnerability-disclosure.yml
- type: AgenticAccess
  url: agentic-access/border0-agentic-access.yml
- type: Authentication
  url: authentication/border0-authentication.yml
- type: Conventions
  url: conventions/border0-conventions.yml
- type: Conformance
  url: conformance/border0-conformance.yml
- type: ErrorCatalog
  url: errors/border0-problem-types.yml
- type: Lifecycle
  url: lifecycle/border0-lifecycle.yml
- type: DataModel
  url: data-model/border0-data-model.yml
- type: Packages
  url: packages/border0-packages.yml
- type: SDKs
  url: packages/border0-packages.yml
- type: CLI
  url: cli/border0-cli.yml
- type: MCPServer
  url: mcp/border0-mcp.yml
- type: LLMsTxt
  url: llms/border0-llms.txt
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Border0

Kin Score

APIs 15

Border0 Audit Actions API

Border0 Client API

Border0 Connect API

Border0 Login API

Border0 Mtls-Ca API

Border0 Organization API

Border0 Organizations API

Border0 Policies API

Border0 Policy API

Border0 Session API

Border0 Sessions API

Border0 Socket API

Border0 Stats API

Border0 User API

Border0 Users API

MCP Servers 1

border0-mcp.yml

Security Posture 3

Border0 Authentication

Border0 Domain Security

Border0 Vulnerability Disclosure

Agentic Access 1

Border0 Agentic Access