SGNL

SGNL is a continuous identity and authorization platform that eliminates standing privilege and makes real-time, context-aware access decisions for both human users and AI agents. It sits at the center of an enterprise IAM architecture, dynamically adapting permissions as conditions change and revoking sessions in real time. SGNL is built on the OpenID Shared Signals Framework (SSF) and the Continuous Access Evaluation Profile (CAEP), ingesting context from identity providers, HR systems, and security tooling to enforce zero standing privilege across cloud and infrastructure. Its Public API v2 (Access Service) exposes REST/JSON access evaluation, asset and principal search, directory query, and provider-hook routing.

SGNL publishes 1 API on the APIs.io network. Tagged areas include Company, Security, Identity, Authorization, and Access Management.

SGNL’s developer surface includes documentation, API reference, support, engineering blog, signup flow, authentication, and 17 more developer resources.

🌐 Visit website 📡 Source on GitHub

29.4/100 emerging ▬ flat Agent 25/100 agent aware Full breakdown ↓
scored 2026-07-27 · rubric v0.5

AccessSelf serve

1 APIs 1 MCP Servers

CompanySecurityIdentityAuthorizationAccess ManagementCAEPShared SignalsZero Standing PrivilegeIAM

Kin Score

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

Composite quality — 29.4/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 11.3 / 20

Commercial Clarity 6.8 / 20

Operational Transparency 2.1 / 13

Governance 0.0 / 12

Discoverability 9.3 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 12 / 12

Machine-Readable Auth 10 / 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 4 / 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/sgnl: 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 1

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

SGNL Public API v2 (Access Service)

REST/JSON access-evaluation API. Evaluate whether a principal may perform actions on assets in context, search accessible assets or authorized principals, query the directory, a...

MCP Servers 1

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

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

DataModel

Lifecycle

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 4

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Operate 1

Status, limits, changes, and where to get help

Support

Support

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: sgnl
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://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sgnl.png
name: SGNL
description: SGNL is a continuous identity and authorization platform that eliminates standing privilege and makes real-time,
  context-aware access decisions for both human users and AI agents. It sits at the center of an enterprise IAM architecture,
  dynamically adapting permissions as conditions change and revoking sessions in real time. SGNL is built on the OpenID Shared
  Signals Framework (SSF) and the Continuous Access Evaluation Profile (CAEP), ingesting context from identity providers,
  HR systems, and security tooling to enforce zero standing privilege across cloud and infrastructure. Its Public API v2 (Access
  Service) exposes REST/JSON access evaluation, asset and principal search, directory query, and provider-hook routing.
url: https://raw.githubusercontent.com/api-evangelist/sgnl/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- costanoa-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Security
- Identity
- Authorization
- Access Management
- CAEP
- Shared Signals
- Zero Standing Privilege
- IAM
apis:
- name: SGNL Public API v2 (Access Service)
  description: REST/JSON access-evaluation API. Evaluate whether a principal may perform actions on assets in context, search
    accessible assets or authorized principals, query the directory, and route provider hooks. Bearer-token authentication
    over HTTPS.
  humanURL: https://developer.sgnl.ai/
  baseURL: https://clientName.sgnlapis.cloud
  tags:
  - Authorization
  - Access Management
  - Identity
  properties:
  - type: Documentation
    url: https://developer.sgnl.ai/
  - type: APIReference
    url: https://developer.sgnl.ai/
  - type: Authentication
    url: authentication/sgnl-authentication.yml
  - type: Conventions
    url: conventions/sgnl-conventions.yml
  - type: DataModel
    url: data-model/sgnl-data-model.yml
  - type: MCPServer
    url: mcp/sgnl-mcp.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://sgnl.ai
- type: DeveloperPortal
  url: https://developer.sgnl.ai/
- type: Documentation
  url: https://developer.sgnl.ai/
- type: APIReference
  url: https://developer.sgnl.ai/
- type: Support
  url: https://help.sgnl.ai/
- type: Blog
  url: https://sgnl.ai/blog/
- type: GitHubOrganization
  url: https://github.com/SGNL-ai
- type: SignUp
  url: https://sgnl.ai/demo/
- type: TermsOfService
  url: https://sgnl.ai/terms-of-use/
- type: PrivacyPolicy
  url: https://sgnl.ai/privacy/
- type: Authentication
  url: authentication/sgnl-authentication.yml
- type: Conventions
  url: conventions/sgnl-conventions.yml
- type: Conformance
  url: conformance/sgnl-conformance.yml
- type: DataModel
  url: data-model/sgnl-data-model.yml
- type: Lifecycle
  url: lifecycle/sgnl-lifecycle.yml
- type: Packages
  url: packages/sgnl-packages.yml
- type: SDKs
  url: packages/sgnl-packages.yml
- type: MCPServer
  url: mcp/sgnl-mcp.yml
- type: LLMsTxt
  url: llms/sgnl-llms.txt
- type: WellKnown
  url: well-known/sgnl-well-known.yml
- type: DomainSecurity
  url: security/sgnl-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/sgnl-vulnerability-disclosure.yml
- type: Security
  url: https://sgnl.ai/responsible-disclosure/
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 11
  pass: local-v1