Abby SEO

Abby SEO offers a free SEO audit tool and website checker that runs 20 on‑page, technical, and content checks, then provides exact fixes ready to copy and paste. The service scans for sitemap, robots.txt, schema, canonical tags, Core Web Vitals and other SEO factors, delivering performance and trust scores. It operates without upsell walls or dark patterns, presenting results in a clear, actionable format for site owners and marketers.

Abby SEO publishes 2 API contracts indexed on the APIs.io network: Email Results API and Scan API. Tagged areas include SEO, Audit, Tool, Free, and Websites.

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

Abby SEO’s developer surface includes getting-started guide, documentation, engineering blog, support, pricing, and 27 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

55.0/100 strong ▬ flat Agent 29/100 agent ready Heartbeat 70/100 slowing Full breakdown ↓
scored 2026-11-02 · rubric v0.26.0 · Show this score on your site →

AccessFreemiumOpen⚡ Free to try

1 published contract 1 MCP Servers 5 Agent Skills

SEO Audit Tool Free Websites Analytics

Kin Score

Kin Score How this is scored →
scored 2026-11-02 · rubric v0.26.0

Composite quality — 55.0/100 · strong

Contract Quality 13.0 / 21

Developer Ergonomics 7.2 / 17

Access Clarity 13.0 / 17

Operational Transparency 4.7 / 11

Contract Governance 2.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 29/100 · 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 0 / 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 5 / 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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<a href="https://apis.io/providers/abbyseo-com/"><img src="https://apis.io/badge/abbyseo-com/card.svg" alt="Abby SEO on APIs.io — Kin Score by API Evangelist"></a>

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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)
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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
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)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

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 42.1 — up to +11.6 composite points
Contract Quality scores 61.1 — up to +9.7 composite points
Contract Governance scores 22.0 — up to +9.4 composite points

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.

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/abbyseo-com/apis.yml: open an issue on github.com/api-evangelist/abbyseo-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 2

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

Abby SEO Email Results API

The Email Results API from Abby SEO — 1 operation(s) for email results.

Abby SEO Scan API

The Scan API from Abby SEO — 3 operation(s) for scan.

MCP Servers 1

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

Abby SEO MCP Server

Remote MCP server at www.abbyseo.com.

MCP SERVER

Agent Skills 5

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

email-results

AGENT SKILL

get-scan-results

AGENT SKILL

get-scan-status

AGENT SKILL

submit-scan-get

AGENT SKILL

submit-scan

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Abbyseo Com Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Abbyseo Com Rate Limits

4 limits

RATE LIMITS

Semantic Vocabularies 1

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

Abbyseo Com Context

6 classes · 44 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Abby SEO API Rules

14 rules · 12 errors 1 warnings 1 info

SPECTRAL

JSON Schema 3

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

ScanQueued

6 properties

JSON SCHEMA

ScanResults

19 properties

JSON SCHEMA

ScanStatus

9 properties

JSON SCHEMA

Security Posture 3

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

Abbyseo Com Authentication

0 schemes

SECURITY

Abbyseo Com Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Abbyseo Com Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Abbyseo Com Agentic Access

5 operations · 2 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Login

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

SDKs

SDKs

Packages

Packages

Access & Security 5

Authentication, authorization, and security posture

Security

Security

SecurityTxt

SecurityTxt

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

PrivacyPolicy

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: abbyseo-com
name: Abby SEO
description: Abby SEO offers a free SEO audit tool and website checker that runs 20 on‑page, technical, and content checks,
  then provides exact fixes ready to copy and paste. The service scans for sitemap, robots.txt, schema, canonical tags, Core
  Web Vitals and other SEO factors, delivering performance and trust scores. It operates without upsell walls or dark patterns,
  presenting results in a clear, actionable format for site owners and marketers.
url: https://artifacts.apis.io/abbyseo-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-31 (modular-v1; was harvest)
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Open access
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-02'
  method: derived
specificationVersion: '0.20'
created: '2026-10-31'
modified: '2026-10-31'
tags:
- SEO
- Audit
- Tool
- Free
- Websites
- Analytics
tags_raw:
- SEO
- Audit
- Tool
- Free
- Website
- Analytics
image: https://www.abbyseo.com/static/images/og-image.png?v=20260420
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/abbyseo-com-agentic-access.yml
- type: RateLimits
  url: rate-limits/abbyseo-com-rate-limits.yml
- type: Plans
  url: plans/abbyseo-com-plans-pricing.yml
- type: Spectral
  url: rules/abbyseo-com-rules.yml
- type: JSONLD
  url: json-ld/abbyseo-com-context.jsonld
- type: Vocabulary
  url: vocabulary/abbyseo-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/abbyseo-com-data-model.yml
- type: Security
  url: security/abbyseo-com-vulnerability-disclosure.yml
- type: ErrorCatalog
  url: errors/abbyseo-com-problem-types.yml
- type: Conformance
  url: conformance/abbyseo-com-conformance.yml
- type: LLMsTxt
  url: llms/abbyseo-com-llms.txt
- type: ToolCrosswalk
  url: mcp/abbyseo-com-tool-crosswalk.yml
- type: MCPServer
  url: mcp/abbyseo-com-mcp.yml
- type: SecurityTxt
  url: well-known/abbyseo-com-security.txt
- type: SecurityTxt
  url: well-known/abbyseo-com-abbyseo-security.txt
- type: WellKnown
  url: well-known/abbyseo-com-well-known.yml
- type: Hosts
  url: hosts/abbyseo-com-hosts.yml
- type: Vendors
  url: vendors/abbyseo-com-vendors.yml
- type: SDKs
  url: packages/abbyseo-com-packages.yml
- type: Packages
  url: packages/abbyseo-com-packages.yml
- type: Login
  url: https://www.abbyseo.com/account/login
- type: GettingStarted
  url: https://www.abbyseo.com/blog/wordpress-seo-settings-guide
- type: VulnerabilityDisclosure
  url: security/abbyseo-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/abbyseo-com-domain-security.yml
- type: Website
  url: https://www.abbyseo.com/
- type: Documentation
  url: https://www.abbyseo.com/docs/mcp
- type: Blog
  url: https://www.abbyseo.com/blog
- type: Support
  url: https://www.abbyseo.com/contact
- type: Pricing
  url: https://www.abbyseo.com/pricing
- type: PrivacyPolicy
  url: https://www.abbyseo.com/privacy
- type: TermsOfService
  url: https://www.abbyseo.com/terms
apis:
- aid: abbyseo-com:abbyseo-com-email-results-api
  name: Abby SEO Email Results API
  description: The Email Results API from Abby SEO — 1 operation(s) for email results.
  humanURL: https://www.abbyseo.com/docs/mcp
  baseURL: https://www.abbyseo.com
  tags:
  - Email Results
  properties:
  - type: OpenAPI
    url: openapi/abbyseo-com-email-results-api-openapi.yml
  - type: JSONSchema
    url: json-schema/abbyseo-com-scan-results-schema.json
  - type: JSONSchema
    url: json-schema/abbyseo-com-scan-status-schema.json
  - type: JSONSchema
    url: json-schema/abbyseo-com-scan-queued-schema.json
- aid: abbyseo-com:abbyseo-com-scan-api
  name: Abby SEO Scan API
  description: The Scan API from Abby SEO — 3 operation(s) for scan.
  humanURL: https://www.abbyseo.com/docs/mcp
  baseURL: https://www.abbyseo.com
  tags:
  - Scans
  tags_raw:
  - Scan
  properties:
  - type: OpenAPI
    url: openapi/abbyseo-com-scan-api-openapi.yml
  - type: JSONSchema
    url: json-schema/abbyseo-com-scan-results-schema.json
  - type: JSONSchema
    url: json-schema/abbyseo-com-scan-status-schema.json
  - type: JSONSchema
    url: json-schema/abbyseo-com-scan-queued-schema.json
x-enrichment:
  date: '2026-10-31'
  status: enriched
  artifacts_added: 37
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

Abby SEO API — frequently asked questions

Does Abby SEO have an API?

Yes. APIs.io lists 2 APIs from Abby SEO, including Abby SEO Email Results API and Abby SEO Scan API.

Is there an OpenAPI specification for the Abby SEO API?

Yes. APIs.io indexes 2 OpenAPI specifications for Abby SEO, each linked for download from this page.

How do I authenticate with the Abby SEO API?

Abby SEO documents its authentication (0 schemes). The details are profiled on APIs.io as Abbyseo Com Authentication.

How much does the Abby SEO API cost?

APIs.io lists 5 pricing plans for Abby SEO, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does Abby SEO have an MCP server?

Yes. APIs.io lists 1 MCP server for Abby SEO: Remote MCP server at www.abbyseo.com.

Is the Abby SEO API ready for AI agents?

Abby SEO has a Kin Score of 55.0 out of 100 (strong) and an Agent Readiness score of 28.7 (agent-ready), scored by API Evangelist on 2026-11-02.

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