CheckWebsiteNow

CheckWebsiteNow is a website-down checker and troubleshooting resource: it checks whether a single public website answers from one measurement point (HTTPS homepage response headers, up to five verified HTTPS redirects) and explains browser, HTTP, DNS and certificate errors with plain-language fix steps for visitors and site owners. It publishes a JSON HTTP API described in /openapi.json (POST /api/v1/check), an Agent Readability Score, llms.txt indexes and an MCP endpoint for AI agents. It is a small independent project operated by Marcus Wolf in Wangen, Switzerland.

CheckWebsiteNow publishes 14 API contracts indexed on the APIs.io network, including Access Solutions API, Agent Check API, Agent Readability Method API, and 11 more. Tagged areas include Company, Website Monitoring, Uptime, Website Down Checker, and HTTPErrors.

The CheckWebsiteNow catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

CheckWebsiteNow’s developer surface includes documentation, API reference, support, and 26 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

39.1/100 thin Agent 35/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreeOpen⚡ Free to try

1 published contract 1 MCP Servers 3 Agent Skills

Company Website Monitoring UptimeWebsite Down CheckerHTTPErrors DNS SSL Certificates Troubleshooting MCP AI Agents

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 39.1/100 · thin

Contract Quality 9.5 / 19

Developer Ergonomics 3.5 / 15

Access Clarity 4.5 / 15

Operational Transparency 4.9 / 10

Contract Governance 3.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 1.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 23.2 — up to +15.4 composite points Ask about this →
Access Clarity scores 29.8 — up to +14.0 composite points Ask about this →
Contract Quality scores 50.9 — up to +12.3 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/checkwebsitenow-com/apis.yml: open an issue on github.com/api-evangelist/checkwebsitenow-com to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 14

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

CheckWebsiteNow Access Solutions API

The Access Solutions API from CheckWebsiteNow — 1 operation(s) for access solutions.

CheckWebsiteNow Agent Check API

The Agent Check API from CheckWebsiteNow — 1 operation(s) for agent check.

CheckWebsiteNow Agent Readability Method API

The Agent Readability Method API from CheckWebsiteNow — 1 operation(s) for agent readability method.

CheckWebsiteNow Check API

The Check API from CheckWebsiteNow — 1 operation(s) for check.

CheckWebsiteNow Errors API

The Errors API from CheckWebsiteNow — 3 operation(s) for errors.

CheckWebsiteNow Guides API

The Guides API from CheckWebsiteNow — 3 operation(s) for guides.

CheckWebsiteNow Llms Full.txt API

The Llms Full.txt API from CheckWebsiteNow — 1 operation(s) for llms full.txt.

CheckWebsiteNow MCP API

The Mcp API from CheckWebsiteNow — 2 operation(s) for mcp.

CheckWebsiteNow Methodology API

The Methodology API from CheckWebsiteNow — 1 operation(s) for methodology.

CheckWebsiteNow Sponsored Offers API

The Sponsored Offers API from CheckWebsiteNow — 1 operation(s) for sponsored offers.

CheckWebsiteNow Stats API

The Stats API from CheckWebsiteNow — 1 operation(s) for stats.

CheckWebsiteNow Status Sites API

The Status Sites API from CheckWebsiteNow — 1 operation(s) for status sites.

CheckWebsiteNow Vpn API

The Vpn API from CheckWebsiteNow — 1 operation(s) for vpn.

CheckWebsiteNow .well Known API

The .well Known API from CheckWebsiteNow — 3 operation(s) for .well known.

Scroll for all 14

MCP Servers 1

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

CheckWebsiteNow MCP Server

Remote MCP server at checkwebsitenow.com; 9 tools listed.

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

check-a-website

AGENT SKILL

explain-a-browser-error

AGENT SKILL

score-agent-readability

AGENT SKILL

CheckWebsiteNow API pricing

Prices published by CheckWebsiteNow. A free plan or tier is listed.

Plan	Price
Free (fair use)	Free, with fair-use limits

Plan details, limits and sources →

Rate limits

Website checks: Website checks: 10 per minute.
Agent-readability checks: Agent-readability checks: 10 per minute
Shared measurement slots: Both check types share four measurement slots.

All 6 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

CheckWebsiteNow Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

CheckWebsiteNow Rate Limits

6 limits

RATE LIMITS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

CheckWebsiteNow

18 quoted statements, read from CheckWebsiteNow's own page on 2026-11-09.

PRIVACY

Semantic Vocabularies 1

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

Checkwebsitenow Com Context

17 classes · 142 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

CheckWebsiteNow API Rules

39 rules · 31 error-severity 5 warn-severity 3 info-severity

SPECTRAL

OpenAPI Overlays 1

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.

CheckWebsiteNow Openapi Overlay

9 actions · update · checkwebsitenow-com-openapi.yml

DERIVED

JSON Schema 7

Standalone JSON Schema definitions for this provider's data models.

AccessSolutions

20 properties

JSON SCHEMA

AgentCheckResult

41 properties

JSON SCHEMA

CheckResult

23 properties

JSON SCHEMA

ErrorEntry

23 properties

JSON SCHEMA

Guide

16 properties

JSON SCHEMA

SponsoredOffers

8 properties

JSON SCHEMA

StatusSite

13 properties

JSON SCHEMA

Scroll for all 7

Security Posture 2

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

CheckWebsiteNow Authentication

0 schemes

SECURITY

CheckWebsiteNow Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

CheckWebsiteNow Agentic Access

21 operations · 3 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conventions

Lifecycle

ErrorCatalog

Conformance

Scroll for all 8

Build 1

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

RateLimits

Deprecation

StatusPage

Support

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

About

About

Other 4

Properties that don't map to a standard resource type

Overlay

Hosts

Vendors

DataProcessing

Source (apis.yml)

aid: checkwebsitenow-com
name: CheckWebsiteNow
description: 'CheckWebsiteNow is a website-down checker and troubleshooting resource: it checks whether a single public website
  answers from one measurement point (HTTPS homepage response headers, up to five verified HTTPS redirects) and explains browser,
  HTTP, DNS and certificate errors with plain-language fix steps for visitors and site owners. It publishes a JSON HTTP API
  described in /openapi.json (POST /api/v1/check), an Agent Readability Score, llms.txt indexes and an MCP endpoint for AI
  agents. It is a small independent project operated by Marcus Wolf in Wangen, Switzerland.'
url: https://artifacts.apis.io/checkwebsitenow-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-03 (modular-v1; was harvest)
accessModel:
  pricing: free
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Free · Open access
  confidence: high
  probe_state: covered
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.20'
created: '2026-11-03'
modified: '2026-11-03'
tags:
- Company
- Website Monitoring
- Uptime
- Website Down Checker
- HTTPErrors
- DNS
- SSL Certificates
- Troubleshooting
- MCP
- AI Agents
tags_raw:
- Company
- Website Monitoring
- Uptime
- Website Down Checker
- HTTP Errors
- DNS
- SSL Certificates
- Troubleshooting
- MCP
- AI Agents
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://checkwebsitenow.com/og-cover.png
common:
- type: AgenticAccess
  url: agentic-access/checkwebsitenow-com-agentic-access.yml
- type: RateLimits
  url: rate-limits/checkwebsitenow-com-rate-limits.yml
- type: Plans
  url: plans/checkwebsitenow-com-plans-pricing.yml
- type: Spectral
  url: rules/checkwebsitenow-com-rules.yml
- type: JSONLD
  url: json-ld/checkwebsitenow-com-context.jsonld
- type: Vocabulary
  url: vocabulary/checkwebsitenow-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/checkwebsitenow-com-data-model.yml
- type: Conventions
  url: conventions/checkwebsitenow-com-conventions.yml
- type: Deprecation
  url: lifecycle/checkwebsitenow-com-lifecycle.yml
- type: Lifecycle
  url: lifecycle/checkwebsitenow-com-lifecycle.yml
- type: ErrorCatalog
  url: errors/checkwebsitenow-com-problem-types.yml
- type: Conformance
  url: conformance/checkwebsitenow-com-conformance.yml
- type: Overlay
  url: overlays/checkwebsitenow-com-openapi-overlay.yaml
- type: LLMsTxt
  url: llms/checkwebsitenow-com-llms.txt
- type: ToolCrosswalk
  url: mcp/checkwebsitenow-com-tool-crosswalk.yml
- type: MCPServer
  url: mcp/checkwebsitenow-com-mcp.yml
- type: WellKnown
  url: well-known/checkwebsitenow-com-well-known.yml
- type: Hosts
  url: hosts/checkwebsitenow-com-hosts.yml
- type: Vendors
  url: vendors/checkwebsitenow-com-vendors.yml
- type: StatusPage
  url: https://checkwebsitenow.com/status
- type: DomainSecurity
  url: security/checkwebsitenow-com-domain-security.yml
- type: Website
  url: https://checkwebsitenow.com/
- type: Documentation
  url: https://checkwebsitenow.com/api
- type: APIReference
  url: https://checkwebsitenow.com/openapi.json
- type: About
  url: https://checkwebsitenow.com/about
- type: Support
  url: https://checkwebsitenow.com/contact
- type: PrivacyPolicy
  url: https://checkwebsitenow.com/imprint
- type: DataProcessing
  url: privacy/checkwebsitenow-com-privacy-policy.yml
apis:
- aid: checkwebsitenow-com:checkwebsitenow-com-access-solutions-api
  name: CheckWebsiteNow Access Solutions API
  description: The Access Solutions API from CheckWebsiteNow — 1 operation(s) for access solutions.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Access Solutions
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-access-solutions-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
  - type: JSONSchema
    url: json-schema/checkwebsitenow-com-access-solutions-schema.json
- aid: checkwebsitenow-com:checkwebsitenow-com-agent-check-api
  name: CheckWebsiteNow Agent Check API
  description: The Agent Check API from CheckWebsiteNow — 1 operation(s) for agent check.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Agent Check
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-agent-check-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
  - type: JSONSchema
    url: json-schema/checkwebsitenow-com-agent-check-result-schema.json
- aid: checkwebsitenow-com:checkwebsitenow-com-agent-readability-method-api
  name: CheckWebsiteNow Agent Readability Method API
  description: The Agent Readability Method API from CheckWebsiteNow — 1 operation(s) for agent readability method.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Agent Readability Method
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-agent-readability-method-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
- aid: checkwebsitenow-com:checkwebsitenow-com-check-api
  name: CheckWebsiteNow Check API
  description: The Check API from CheckWebsiteNow — 1 operation(s) for check.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Check
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-check-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
  - type: JSONSchema
    url: json-schema/checkwebsitenow-com-check-result-schema.json
- aid: checkwebsitenow-com:checkwebsitenow-com-errors-api
  name: CheckWebsiteNow Errors API
  description: The Errors API from CheckWebsiteNow — 3 operation(s) for errors.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Errors
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-errors-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
  - type: JSONSchema
    url: json-schema/checkwebsitenow-com-error-entry-schema.json
- aid: checkwebsitenow-com:checkwebsitenow-com-guides-api
  name: CheckWebsiteNow Guides API
  description: The Guides API from CheckWebsiteNow — 3 operation(s) for guides.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Guides
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-guides-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
  - type: JSONSchema
    url: json-schema/checkwebsitenow-com-guide-schema.json
- aid: checkwebsitenow-com:checkwebsitenow-com-llms-full-txt-api
  name: CheckWebsiteNow Llms Full.txt API
  description: The Llms Full.txt API from CheckWebsiteNow — 1 operation(s) for llms full.txt.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Llms Full.txt
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-llms-full-txt-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
- aid: checkwebsitenow-com:checkwebsitenow-com-mcp-api
  name: CheckWebsiteNow MCP API
  description: The Mcp API from CheckWebsiteNow — 2 operation(s) for mcp.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - MCP
  tags_raw:
  - Mcp
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-mcp-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
- aid: checkwebsitenow-com:checkwebsitenow-com-methodology-api
  name: CheckWebsiteNow Methodology API
  description: The Methodology API from CheckWebsiteNow — 1 operation(s) for methodology.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Methodology
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-methodology-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
- aid: checkwebsitenow-com:checkwebsitenow-com-sponsored-offers-api
  name: CheckWebsiteNow Sponsored Offers API
  description: The Sponsored Offers API from CheckWebsiteNow — 1 operation(s) for sponsored offers.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Sponsored Offers
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-sponsored-offers-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
  - type: JSONSchema
    url: json-schema/checkwebsitenow-com-sponsored-offers-schema.json
- aid: checkwebsitenow-com:checkwebsitenow-com-stats-api
  name: CheckWebsiteNow Stats API
  description: The Stats API from CheckWebsiteNow — 1 operation(s) for stats.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-stats-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
- aid: checkwebsitenow-com:checkwebsitenow-com-status-sites-api
  name: CheckWebsiteNow Status Sites API
  description: The Status Sites API from CheckWebsiteNow — 1 operation(s) for status sites.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - Status Sites
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-status-sites-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
  - type: JSONSchema
    url: json-schema/checkwebsitenow-com-status-site-schema.json
- aid: checkwebsitenow-com:checkwebsitenow-com-vpn-api
  name: CheckWebsiteNow Vpn API
  description: The Vpn API from CheckWebsiteNow — 1 operation(s) for vpn.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - VPN
  tags_raw:
  - Vpn
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-vpn-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
- aid: checkwebsitenow-com:checkwebsitenow-com-well-known-api
  name: CheckWebsiteNow .well Known API
  description: The .well Known API from CheckWebsiteNow — 3 operation(s) for .well known.
  humanURL: https://checkwebsitenow.com/api
  tags:
  - .well Known
  properties:
  - type: OpenAPI
    url: openapi/checkwebsitenow-com-well-known-api-openapi.yml
  - type: Documentation
    url: https://checkwebsitenow.com/api
  - type: MCPServerCard
    url: https://checkwebsitenow.com/mcp/server-card
x-coverage:
  state: covered
  reason: identity-verified
  detail: 'Name and operator read from the site: <title> "CheckWebsiteNow"; /about and /imprint name the operator Marcus Wolf,
    Wangen, Switzerland ("There is no company"). No GitHub org, pricing, terms of service, blog or sign-up page is published
    (/terms and /pricing return 404). The dossier site_links GitHubOrganization (/status/github.com) and StatusPage (/status)
    are the product''s own "is X down" pages, not provider pointers, so were not recorded.'
  evidence:
  - url: https://checkwebsitenow.com/
    status: 200
  - url: https://checkwebsitenow.com/about
    status: 200
  - url: https://checkwebsitenow.com/imprint
    status: 200
  - url: https://checkwebsitenow.com/api
    status: 200
  - url: https://checkwebsitenow.com/openapi.json
    status: 200
  - url: https://checkwebsitenow.com/contact
    status: 200
  - url: https://checkwebsitenow.com/og-cover.png
    status: 200
  - url: https://checkwebsitenow.com/terms
    status: 404
  - url: https://checkwebsitenow.com/pricing
    status: 404
x-enrichment:
  date: '2026-11-03'
  status: enriched
  artifacts_added: 41
  pass: modular-v1
  engine: identity=anthropic,contract=anthropic,surfaces=anthropic,docs=anthropic,regulatory=anthropic

CheckWebsiteNow API — frequently asked questions

Does CheckWebsiteNow have an API?

Yes. APIs.io lists 14 APIs from CheckWebsiteNow, including CheckWebsiteNow Access Solutions API, CheckWebsiteNow Agent Check API and CheckWebsiteNow Agent Readability Method API, and 11 more.

Is there an OpenAPI specification for the CheckWebsiteNow API?

Yes. APIs.io indexes 14 OpenAPI specifications for CheckWebsiteNow, each linked for download from this page.

How do I authenticate with the CheckWebsiteNow API?

CheckWebsiteNow documents its authentication (0 schemes). The details are profiled on APIs.io as CheckWebsiteNow Authentication.

How much does the CheckWebsiteNow API cost?

CheckWebsiteNow publishes its prices; its Free (fair use) plan is Free, with fair-use limits as of 2026-11-03. APIs.io lists 1 pricing plan for CheckWebsiteNow, with each plan's price, limits and inclusions under Pricing on this page.

Does CheckWebsiteNow have an MCP server?

Yes. APIs.io lists 1 MCP server for CheckWebsiteNow: Remote MCP server at checkwebsitenow.com; 9 tools listed.

Is the CheckWebsiteNow API ready for AI agents?

CheckWebsiteNow has a Kin Score of 39.1 out of 100 (thin) and an Agent Readiness score of 35.4 (agent-ready), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/checkwebsitenow-com"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/checkwebsitenow-com/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/checkwebsitenow-com/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

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A second provider on the same verified email joins the account you already have.