Substly website screenshot

Substly

Substly is a SaaS management platform designed for small and medium-sized businesses to track software subscriptions, optimize spend, manage user access, and detect shadow IT across cloud applications. It provides centralized oversight, automated renewal tracking, and integrations with Google Workspace and Microsoft Entra ID.

Substly publishes 1 API on the APIs.io network. Tagged areas include SaaS Management, Subscription Management, Spend Management, IT Management, and Shadow IT.

The Substly catalog on APIs.io includes 1 JSON-LD context.

Substly’s developer surface includes documentation, pricing, engineering blog, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub
28.1/100 thin ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemium
1 APIs
SaaS ManagementSubscription ManagementSpend ManagementIT ManagementShadow IT

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 28.1/100 · thin
Contract Quality 3.2 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 12.6 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 5.9 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
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 7 / 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
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/substly: 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.

Substly

Substly is an uncomplicated and affordable SaaS management platform for SMBs, offering subscription tracking, spend optimization, user access management, and shadow IT detection...

Pricing Plans 1

Published pricing tiers and plan structures.

Substly Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Substly Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Substly Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Substly Context

14 classes · 5 properties

JSON-LD

Security Posture 1

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

Substly Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login
Login

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Commercial 1

Pricing, plans, and the legal terms of use

Pricing
Pricing

Company 4

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog
 AboutUs
AboutUs

Source (apis.yml)

apis.yml Raw ↑ 
aid: substly
name: Substly
description: Substly is a SaaS management platform designed for small and medium-sized businesses to track software subscriptions,
  optimize spend, manage user access, and detect shadow IT across cloud applications. It provides centralized oversight, automated
  renewal tracking, and integrations with Google Workspace and Microsoft Entra ID.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/substly.png
tags:
- SaaS Management
- Subscription Management
- Spend Management
- IT Management
- Shadow IT
url: https://raw.githubusercontent.com/api-evangelist/substly/refs/heads/main/apis.yml
created: '2026-03-27'
modified: '2026-05-02'
specificationVersion: '0.19'
apis:
- aid: substly:substly
  name: Substly
  description: Substly is an uncomplicated and affordable SaaS management platform for SMBs, offering subscription tracking,
    spend optimization, user access management, and shadow IT detection. It integrates with Google Workspace and Microsoft
    Entra ID to sync users and services automatically.
  humanURL: https://www.substly.com
  tags:
  - SaaS Management
  - Subscription Management
  - Spend Management
  - Shadow IT
  - User Management
  properties:
  - type: Documentation
    url: https://www.substly.com/en/features/
  - type: Website
    url: https://www.substly.com
  - type: Pricing
    url: https://www.substly.com/en/pricing/
  - type: Blog
    url: https://www.substly.com/en/blog/
  - type: HowItWorks
    url: https://www.substly.com/en/how-it-works
common:
- type: DomainSecurity
  url: security/substly-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/substly
- type: Website
  url: https://www.substly.com
- type: Documentation
  url: https://www.substly.com/en/features/
- type: Pricing
  url: https://www.substly.com/en/pricing/
- type: Blog
  url: https://www.substly.com/en/blog/
- type: AboutUs
  url: https://www.substly.com/en/about-us/
- type: Login
  url: https://app.substly.com
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com