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 API contracts indexed on the APIs.io network, including Deployments API, and 1 more. Tagged areas include API Testing, Monitoring, Quality Assurance, Testing, and CI/CD.
The Assertible catalog on APIs.io includes 1 Spectral governance ruleset.
Assertible’s developer surface includes authentication, pricing, support, developer portal, documentation, engineering blog, signup flow, and 23 more developer resources.
Kin Score
Standards implemented 1
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
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 2
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Assertible Deployments API
OPEN COLLECTIONAssertible API
OPEN COLLECTIONAgent Skills 3
Packaged agent skills for driving this provider's APIs from an AI assistant.
assertible-deployment-test-gate
AGENT SKILLassertible-sync-spec-tests
AGENT SKILLassertible-trigger-test-run
AGENT SKILLAssertible API pricing
Prices published by Assertible, read 2026-10-28 from assertible.com/plans.
| Plan | Price |
|---|---|
| Personal | $0/month Includes: 2 web services, 10 tests per service, 1,000 result retention, 1-2 members, Standard (2 monitors) sch |
| Standard | $25/month Includes: 25 web services, 500 tests per service, 5,000 result retention, 1 member, Upgraded schedule frequenc |
| Startup | $50/month Includes: 25 web services, 500 tests per service, 5,000 result retention, 10 members, Upgraded schedule freque |
| Business | $100/month Includes: 50 web services, 1,000 tests per service, 10,000 result retention, 20 members, Upgraded schedule fre |
Plan details, limits and sources →
Billed by: account · FinOps profile →
Pricing Plans 2
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Assertible Rate Limits
RATE LIMITSService Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
Assertible
SLAFinOps 1
Cost, billing, and metering signals for API financial operations.
Assertible Finops
FINOPSFeatures 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.
Spectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Assertible API Rules
SPECTRALOpenAPI Overlays 3
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Assertible Sync Api Overlay
DERIVEDAssertible Triggers Api Overlay
DERIVEDSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
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 3
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Source (apis.yml)
Assertible API — frequently asked questions
Does Assertible have an API?
Yes. APIs.io lists 2 APIs from Assertible, including Assertible API and Assertible Deployments API.
Is there an OpenAPI specification for the Assertible API?
Yes. APIs.io indexes 2 OpenAPI specifications for Assertible, each linked for download from this page.
How do I authenticate with the Assertible API?
Assertible uses bearer-token authentication (http · 3 schemes). The details are profiled on APIs.io as Assertible Authentication.
How much does the Assertible API cost?
Assertible publishes its prices; its Personal plan is $0/month as of 2026-10-28. APIs.io lists 4 pricing plans for Assertible, with each plan's price, limits and inclusions under Pricing on this page.
Is the Assertible API ready for AI agents?
Assertible has a Kin Score of 49.9 out of 100 (developing) and an Agent Readiness score of 34.7 (agent-ready), scored by API Evangelist on 2026-11-06.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.