Semrush

SEMrush is an all-in-one digital marketing tool that helps businesses improve their online visibility and attract more customers. This powerful software provides a range of tools and features for keyword research, website analysis, competitive analysis, and more. With SEMrush, businesses can track their online rankings, discover new keywords to target, analyze their competitors' strategies, and optimize their website for better search engine performance.

Semrush publishes 4 API contracts indexed on the APIs.io network, including Hermes Partner API, JWT Issuer API, Partner Service API, and 1 more. Tagged areas include Data, Search Engines, SEO, Marketing, and Marketing Intelligence.

The Semrush catalog on APIs.io includes 1 Spectral governance ruleset.

Semrush’s developer surface includes authentication, changelog, documentation, API reference, getting-started guide, pricing, signup flow, and 31 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

69.4/100 exemplar ▬ flat Agent 29/100 agent ready Heartbeat 96/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers 3 Agent Skills

Data Search Engines SEO Marketing Marketing Intelligence Content Marketing Advertising Competitive Intelligence Keyword Research Backlinks Rank TrackingAI Search VisibilityLocal SEO MCP

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 69.4/100 · exemplar

Contract Quality 10.1 / 19

Developer Ergonomics 9.0 / 15

Access Clarity 15.0 / 15

Operational Transparency 6.7 / 10

Contract Governance 2.9 / 9

Discoverability 5.6 / 8

Regulatory Posture 6.8 / 15

Create-or-Update Ergonomics 0.0 / 10

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 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 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 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):

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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
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):

Contract Quality scores 53.7 — up to +11.6 composite points
Contract Governance scores 31.8 — up to +8.2 composite points
Developer Ergonomics scores 60.1 — up to +8.0 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/semrush/apis.yml: open an issue on github.com/api-evangelist/semrush 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Data Marketplaces (data providers on cloud data platforms)	builds-on	43.3	-	-
HubSpot App Marketplace (CRM add-ons, outbound, performance marketing, chat)	builds-on	43.3	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 3

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)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 4

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

Semrush Hermes Partner API

The Hermes Partner API API from Semrush — 4 operation(s) for hermes partner api.

Semrush JWT Issuer API

The JWT Issuer API from Semrush — 1 operation(s) for jwt issuer.

Semrush Partner Service API

The Partner Service API from Semrush — 1 operation(s) for partner service.

Semrush MCP

Semrush's first-party hosted Model Context Protocol server. Streamable HTTP transport only, OAuth-gated with the single scope mcp.access, and metered against the same API unit b...

Open Collections 4

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

Semrush Hermes Partner API API

OPEN COLLECTION

Semrush Hermes Partner API JWT Issuer API

OPEN COLLECTION

Semrush Hermes Partner API Partner Service API

OPEN COLLECTION

Semrush

OPEN COLLECTION

MCP Servers 1

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

Semrush MCP

Semrush ships a first-party, hosted MCP server that exposes its public API data to AI agents over streamable HTTP. Per the provider's own documentation the server fronts the Tre...

MCP SERVER

Agent Skills 3

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

semrush-app-center-partner-integration

AGENT SKILL

semrush-backlink-profile-audit

AGENT SKILL

semrush-connect-mcp

AGENT SKILL

Semrush API pricing

Prices published by Semrush, read 2026-10-28 from www.semrush.com/pricing/seo-ai-search/.

Plan	Price
Free	$0/mo Includes: 1 demo project, 10 reports per day across all vital tools, Help Center & Basic Onboarding
SEO	$117 . 33/mo billed annually Includes: 5 websites to monitor, 500 keywords to track daily
SEO (monthly)	$139 monthly
Starter SEO + AI Search	$165 . 17/mo billed annually Includes: 5 websites, 500 keywords daily, MCP access, 50 prompts daily, 300 AI visibility reports per day
Starter SEO + AI Search (monthly)	$199 monthly
Pro+ SEO + AI Search	$248 . 17/mo billed annually Includes: 15 websites, 1,500 keywords daily, 100 prompts daily
Pro+ SEO + AI Search (monthly)	$299 monthly
Advanced SEO + AI Search	Custom Includes: 40+ websites, 5,000+ keywords daily, Advanced API data integration, unlimited prompts

All 13 plans, limits and sources →

Rate limits

General request rate: 10 requests per second
General concurrency: 10 concurrent requests
Trends API request rate: 10 requests per second

All 13 limits →

Billed by: account · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Semrush Plans Pricing

13 plans

PLANS

Semrush Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Semrush Rate Limits

13 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Semrush

SLA

FinOps 1

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

Semrush Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Semrush API Rules

55 rules · 50 errors 1 warnings 4 info

SPECTRAL

OpenAPI 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.

Semrush Hermes Partner Api Api Overlay

6 actions · documentation · semrush-hermes-partner-api-api-openapi.yml

GENERATED

Semrush Jwt Issuer Api Overlay

3 actions · documentation · semrush-jwt-issuer-api-openapi.yml

GENERATED

Semrush Partner Service Api Overlay

3 actions · documentation · semrush-partner-service-api-openapi.yml

GENERATED

Security Posture 4

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

Semrush Authentication

apiKey/http/oauth2 · 4 schemes

SECURITY

Semrush Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Semrush Vulnerability Disclosure

Hackerone

SECURITY

Semrush Trust Center

PCI DSS, GDPR, CCPA, LGPD

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Semrush Scopes

1 scope

1 scopes

SCOPES

Agentic Access 1

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

Semrush Agentic Access

6 operations · 3 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Signup

Signup

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

WellKnown

MCPServer

AgentSkill

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

Components

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

Packages

Packages

ToolCrosswalk

ToolCrosswalk

GitHubOrganization

GitHubOrganization

Access & Security 7

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

TrustCenter

Compliance

Authentication

OAuthScopes

Scroll for all 7

Operate 4

Status, limits, changes, and where to get help

Deprecation

ChangeLog

RateLimits

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Source (apis.yml)

aid: semrush
url: https://raw.githubusercontent.com/api-search/semrush/refs/heads/main/apis.yml
common:
- type: Website
  url: https://www.semrush.com/
- type: AgenticAccess
  url: agentic-access/semrush-agentic-access.yml
- type: DomainSecurity
  url: security/semrush-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/semrush-vulnerability-disclosure.yml
- type: Security
  url: security/semrush-vulnerability-disclosure.yml
- type: TrustCenter
  url: security/semrush-trust-center.yml
- type: Compliance
  url: security/semrush-trust-center.yml
- type: Authentication
  url: authentication/semrush-authentication.yml
- type: OAuthScopes
  url: scopes/semrush-scopes.yml
- type: Conventions
  url: conventions/semrush-conventions.yml
- type: ErrorCatalog
  url: errors/semrush-problem-types.yml
- type: Lifecycle
  url: lifecycle/semrush-lifecycle.yml
- type: Deprecation
  url: lifecycle/semrush-lifecycle.yml
- type: Conformance
  url: conformance/semrush-conformance.yml
- type: ChangeLog
  url: changelog/semrush-changelog.yml
- type: Components
  url: components/semrush-components.yml
- type: DataModel
  url: data-model/semrush-data-model.yml
- type: Packages
  url: packages/semrush-packages.yml
- type: WellKnown
  url: well-known/semrush-well-known.yml
- type: MCPServer
  url: mcp/semrush-mcp.yml
- type: ToolCrosswalk
  url: mcp/semrush-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/semrush-llms.txt
- type: Plans
  url: plans/semrush-plans-pricing.yml
- type: RateLimits
  url: rate-limits/semrush-rate-limits.yml
- type: FinOps
  url: finops/semrush-finops.yml
- type: DeveloperPortal
  url: https://developer.semrush.com/api/
- type: Documentation
  url: https://developer.semrush.com/api/v4/
- type: APIReference
  url: https://developer.semrush.com/api/v4/seo/overview/
- type: GettingStarted
  url: https://developer.semrush.com/api/v4/get-started/quick-start/
- type: Pricing
  url: https://www.semrush.com/prices/
- type: Signup
  url: https://www.semrush.com/signup/
- type: Support
  url: https://www.semrush.com/kb/
- type: Blog
  url: https://www.semrush.com/blog/
- type: TermsOfService
  url: https://www.semrush.com/company/legal/terms-of-service/
- type: PrivacyPolicy
  url: https://www.semrush.com/company/legal/privacy-policy/
- type: GitHubOrganization
  url: https://github.com/semrush
- type: LinkedIn
  url: https://www.linkedin.com/company/semrush
apis:
- aid: semrush:semrush-hermes-partner-api-api
  name: Semrush Hermes Partner API
  description: The Hermes Partner API API from Semrush — 4 operation(s) for hermes partner api.
  humanURL: https://developer.semrush.com/api/
  baseURL: https://api.semrush.com
  tags:
  - Hermes Partner API
  properties:
  - type: OpenAPI
    url: openapi/semrush-hermes-partner-api-api-openapi.yml
  - type: Overlay
    url: overlays/semrush-hermes-partner-api-api-overlay.yaml
  - type: PostmanCollection
    url: collections/semrush-hermes-partner-api-api.postman_collection.json
  - type: OpenCollection
    url: collections/semrush-hermes-partner-api-api.opencollection.json
- aid: semrush:semrush-jwt-issuer-api
  name: Semrush JWT Issuer API
  description: The JWT Issuer API from Semrush — 1 operation(s) for jwt issuer.
  humanURL: https://developer.semrush.com/api/
  baseURL: https://api.semrush.com
  tags:
  - JWT Issuer
  properties:
  - type: OpenAPI
    url: openapi/semrush-jwt-issuer-api-openapi.yml
  - type: Overlay
    url: overlays/semrush-jwt-issuer-api-overlay.yaml
  - type: PostmanCollection
    url: collections/semrush-jwt-issuer-api.postman_collection.json
  - type: OpenCollection
    url: collections/semrush-jwt-issuer-api.opencollection.json
- aid: semrush:semrush-partner-service-api
  name: Semrush Partner Service API
  description: The Partner Service API from Semrush — 1 operation(s) for partner service.
  humanURL: https://developer.semrush.com/api/
  baseURL: https://api.semrush.com
  tags:
  - Partner Service
  properties:
  - type: OpenAPI
    url: openapi/semrush-partner-service-api-openapi.yml
  - type: Overlay
    url: overlays/semrush-partner-service-api-overlay.yaml
  - type: PostmanCollection
    url: collections/semrush-partner-service-api.postman_collection.json
  - type: OpenCollection
    url: collections/semrush-partner-service-api.opencollection.json
- aid: semrush:semrush-mcp
  name: Semrush MCP
  description: Semrush's first-party hosted Model Context Protocol server. Streamable HTTP transport only, OAuth-gated with
    the single scope mcp.access, and metered against the same API unit balance as the REST APIs. Fronts the Trends API, the
    whole SEO API, and the read-only methods of the Projects API v3.
  humanURL: https://developer.semrush.com/api/v4/introduction/semrush-mcp/
  baseURL: https://mcp.semrush.com/v2/mcp
  tags:
  - MCP
  - AI Agents
  tags_raw:
  - MCP
  - AI Agents
  - Model Context Protocol
  properties:
  - type: MCPServer
    url: mcp/semrush-mcp.yml
  - type: Documentation
    url: https://developer.semrush.com/api/v4/introduction/semrush-mcp/
name: Semrush
tags:
- Data
- Search Engines
- SEO
- Marketing
- Marketing Intelligence
- Content Marketing
- Advertising
- Competitive Intelligence
- Keyword Research
- Backlinks
- Rank Tracking
- AI Search Visibility
- Local SEO
- MCP
kind: contract
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
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/semrush.png
access: 3rd-Party
created: '2024-11-14'
modified: '2026-09-16'
position: Consuming
description: SEMrush is an all-in-one digital marketing tool that helps businesses improve their online visibility and attract
  more customers. This powerful software provides a range of tools and features for keyword research, website analysis, competitive
  analysis, and more. With SEMrush, businesses can track their online rankings, discover new keywords to target, analyze their
  competitors' strategies, and optimize their website for better search engine performance.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.23'
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 24
  pass: local-v1

Semrush API — frequently asked questions

Does Semrush have an API?

Yes. APIs.io lists 4 APIs from Semrush, including Semrush Hermes Partner API, Semrush JWT Issuer API and Semrush Partner Service API, and 1 more.

Is there an OpenAPI specification for the Semrush API?

Yes. APIs.io indexes 3 OpenAPI specifications for Semrush, each linked for download from this page.

How do I authenticate with the Semrush API?

Semrush uses bearer-token authentication (apiKey/http/oauth2 · 4 schemes). The details are profiled on APIs.io as Semrush Authentication.

How much does the Semrush API cost?

Semrush publishes its prices; its Free plan is $0/mo as of 2026-10-28. APIs.io lists 13 pricing plans for Semrush, with each plan's price, limits and inclusions under Pricing on this page.

Does Semrush have an MCP server?

Yes. APIs.io lists 1 MCP server for Semrush: Semrush ships a first-party, hosted MCP server that exposes its public API data to AI agents over streamable HTTP. Per the provider's own documentation the server fronts the Trends API (subject to the

Is the Semrush API ready for AI agents?

Semrush has a Kin Score of 69.4 out of 100 (exemplar) and an Agent Readiness score of 28.6 (agent-ready), scored by API Evangelist on 2026-11-06.

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