Assertible website screenshot

Assertible

Assertible provides a reliable first line of defense against web service failures by providing simple and powerful assertions to test and monitor APIs. It enables automated API testing with assertions on response status, headers, body content, and performance, with integrations for CI/CD pipelines and notifications. Assertible supports scheduled API monitoring, deployment testing triggered via webhooks, and team collaboration for API quality assurance workflows. The platform integrates with GitHub, Slack, PagerDuty, and other tools for seamless notification and incident management.

Assertible publishes 2 APIs on the APIs.io network, including Deployments API, and 1 more. Tagged areas include API Testing, Monitoring, Quality Assurance, Testing, and CI/CD.

Assertible’s developer surface includes authentication, pricing, support, developer portal, documentation, engineering blog, signup flow, and 21 more developer resources.

48.3/100 developing ▬ flat Agent 35/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessFreemiumSelf serve⚡ Free to try
1 APIs 5 Features 3 Use Cases
API TestingMonitoringQuality AssuranceTestingCI/CD

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
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.
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/assertible: 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 2

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

Assertible API

Assertible's public programmatic surface, used to drive test runs from a CI/CD pipeline. It consists of two documented POST operations on assertible.com: a trigger URL that runs...

Assertible Deployments API

Notify Assertible of deployments and trigger tests

Open Collections 3

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

API Collection

OPEN COLLECTION

Assertible API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Assertible Rate Limits

0 limits

RATE LIMITS

FinOps 1

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

Features 5

Notable capabilities this provider offers.

API Test Assertions

Define assertions on API response status codes, headers, response body content, JSON Schema compliance, and response time to validate API behavior.

Scheduled Monitoring

Run API tests on a scheduled basis (hourly, daily, etc.) to continuously monitor production APIs for availability and correctness.

Deployment Testing

Trigger Assertible test suites automatically after deployments via webhooks, ensuring API quality gates are enforced in CI/CD pipelines.

JSON Schema Validation

Validate API responses against JSON Schema definitions to ensure response payloads match expected data structures.

Team Collaboration

Share test suites and API monitoring configurations across teams with role-based access and shared notification channels.

Security Posture 2

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

Assertible Authentication

http · 3 schemes

SECURITY

Assertible Domain Security

TLSv1.2 · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Assertible Agentic Access

1 operation · 1 acting

1 operations · 1 acting

AGENTIC

Use Cases 3

What developers build with this provider.

Post-Deployment Validation

Development teams trigger Assertible test suites after each deployment to verify APIs are functioning correctly before traffic shifts.

API Uptime Monitoring

Operations teams use scheduled Assertible tests to monitor API availability and receive alerts when endpoints fail.

API Contract Testing

QA teams use JSON Schema assertions to validate that API responses match documented contracts and catch breaking changes.

Integrations 4

Pre-built integrations with other platforms and tools.

GitHub

Integration with GitHub for triggering tests on pull requests and deployment events through GitHub Actions and webhooks.

Slack

Slack notifications for test failures, alerts, and monitoring events from Assertible test runs.

PagerDuty

PagerDuty integration for escalating API monitoring failures to on-call teams for incident response.

CircleCI

Integration with CircleCI pipelines for running Assertible test suites as part of continuous integration workflows.

Resources

Get Started 3

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 6

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 2

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 4

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: assertible
name: Assertible
description: Assertible provides a reliable first line of defense against web service failures by providing simple and powerful
  assertions to test and monitor APIs. It enables automated API testing with assertions on response status, headers, body
  content, and performance, with integrations for CI/CD pipelines and notifications. Assertible supports scheduled API monitoring,
  deployment testing triggered via webhooks, and team collaboration for API quality assurance workflows. The platform integrates
  with GitHub, Slack, PagerDuty, and other tools for seamless notification and incident management.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/assertible.png
tags:
- API Testing
- Monitoring
- Quality Assurance
- Testing
- CI/CD
created: '2025-01-08'
modified: '2026-09-04'
specificationVersion: '0.23'
url: https://raw.githubusercontent.com/api-evangelist/assertible/refs/heads/main/apis.yml
apis:
- aid: assertible:assertible-api
  name: Assertible API
  description: 'Assertible''s public programmatic surface, used to drive test runs from a CI/CD pipeline. It consists of two
    documented POST operations on assertible.com: a trigger URL that runs a web service''s tests (POST /apis/{serviceId}/run)
    and a sync call that re-imports an OpenAPI, Swagger or Postman specification and updates the tests derived from it (POST
    /imports/{importId}/sync). Both authenticate with HTTP Basic using an Assertible API token as the username. There are
    no read operations: web services, tests, imports, environments, schedules and alert hooks are created and listed in the
    dashboard only. Assertible''s own /docs/api page states the broader API is "under construction".'
  humanURL: https://assertible.com/
  baseURL: https://assertible.com
  tags:
  - API Testing
  - Monitoring
  - Quality Assurance
  properties:
  - type: Documentation
    url: https://assertible.com/docs
  - type: GettingStarted
    url: https://assertible.com/docs/guide/web-services
    title: Quick start - create your web service
  - type: APIReference
    url: https://assertible.com/docs/guide/deployments
    title: Deployments API parameter reference
  - type: OpenAPI
    url: openapi/assertible-triggers-api-openapi.yml
  - type: OpenAPI
    url: openapi/assertible-sync-api-openapi.yml
  - type: Overlay
    url: overlays/assertible-triggers-api-overlay.yaml
  - type: Overlay
    url: overlays/assertible-sync-api-overlay.yaml
- aid: assertible:assertible-deployments-api
  name: Assertible Deployments API
  description: Notify Assertible of deployments and trigger tests
  humanURL: https://assertible.com/
  baseURL: https://assertible.com
  tags:
  - Deployment
  tags_raw:
  - Deployments
  properties:
  - type: OpenAPI
    url: openapi/assertible-deployments-api-openapi.yml
  - type: Overlay
    url: overlays/assertible-deployments-api-overlay.yaml
  - type: Documentation
    url: https://assertible.com/docs/guide/deployments
    title: Tracking deployments
common:
- type: Website
  url: https://assertible.com/
- type: AgenticAccess
  url: agentic-access/assertible-agentic-access.yml
- type: DomainSecurity
  url: security/assertible-domain-security.yml
- type: Authentication
  url: authentication/assertible-authentication.yml
- type: Conventions
  url: conventions/assertible-conventions.yml
- type: Idempotency
  url: conventions/assertible-conventions.yml
  title: Idempotency and reversibility semantics
- type: ErrorCatalog
  url: errors/assertible-problem-types.yml
- type: Lifecycle
  url: lifecycle/assertible-lifecycle.yml
- type: StatusPage
  url: http://status.assertible.com
  title: Assertible Status
- type: Conformance
  url: conformance/assertible-conformance.yml
- type: DataModel
  url: data-model/assertible-data-model.yml
- type: Packages
  url: packages/assertible-packages.yml
- type: LLMsTxt
  url: llms/assertible-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: X-MCPServerCandidate
  url: mcp/assertible-mcp.yml
- type: Plans
  url: plans/assertible-plans-pricing.yml
- type: Pricing
  url: https://assertible.com/plans
  title: Plans and Pricing
- type: TermsOfService
  url: https://assertible.com/termsofservice
  title: Terms of Service
- type: PrivacyPolicy
  url: https://assertible.com/privacypolicy
  title: Privacy Policy
- type: Support
  url: https://assertible.com/contact
  title: Contact Assertible
- type: Twitter
  url: https://twitter.com/AssertibleApp
- type: LinkedIn
  url: https://www.linkedin.com/company/assertible
- type: Portal
  url: https://assertible.com/
  title: Assertible Website
- type: Documentation
  url: https://assertible.com/docs
  title: Documentation
- type: Blog
  url: https://assertible.com/blog
  title: Blog
- type: SignUp
  url: https://assertible.com/signup
  title: Sign Up
- type: Login
  url: https://assertible.com/login
  title: Login
- type: GitHubOrganization
  url: https://github.com/assertible
  title: Assertible GitHub Organization
- type: Features
  data:
  - name: API Test Assertions
    description: Define assertions on API response status codes, headers, response body content, JSON Schema compliance, and
      response time to validate API behavior.
  - name: Scheduled Monitoring
    description: Run API tests on a scheduled basis (hourly, daily, etc.) to continuously monitor production APIs for availability
      and correctness.
  - name: Deployment Testing
    description: Trigger Assertible test suites automatically after deployments via webhooks, ensuring API quality gates are
      enforced in CI/CD pipelines.
  - name: JSON Schema Validation
    description: Validate API responses against JSON Schema definitions to ensure response payloads match expected data structures.
  - name: Team Collaboration
    description: Share test suites and API monitoring configurations across teams with role-based access and shared notification
      channels.
- type: UseCases
  data:
  - name: Post-Deployment Validation
    description: Development teams trigger Assertible test suites after each deployment to verify APIs are functioning correctly
      before traffic shifts.
  - name: API Uptime Monitoring
    description: Operations teams use scheduled Assertible tests to monitor API availability and receive alerts when endpoints
      fail.
  - name: API Contract Testing
    description: QA teams use JSON Schema assertions to validate that API responses match documented contracts and catch breaking
      changes.
- type: Integrations
  data:
  - name: GitHub
    description: Integration with GitHub for triggering tests on pull requests and deployment events through GitHub Actions
      and webhooks.
  - name: Slack
    description: Slack notifications for test failures, alerts, and monitoring events from Assertible test runs.
  - name: PagerDuty
    description: PagerDuty integration for escalating API monitoring failures to on-call teams for incident response.
  - name: CircleCI
    description: Integration with CircleCI pipelines for running Assertible test suites as part of continuous integration
      workflows.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-09-04'
  status: enriched
  artifacts_added: 19
  pass: local-v3

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