SimilarWeb website screenshot

SimilarWeb

SimilarWeb is a digital intelligence platform offering a REST API for accessing website traffic estimates, audience demographics, keyword analytics, competitive benchmarking, app intelligence data, and lead generation insights. The API provides real-time and historical data covering traffic sources, search behavior, technographics, e-commerce shopper intelligence, and firmographic company data, enabling developers to integrate market intelligence into applications, dashboards, and data pipelines. The current generation is API V5, launched March 2026, which unified the REST and Batch API keys, added multi-metric requests, and shipped a first-party hosted MCP server at mcp.similarweb.com for AI agents; legacy v1-v4 REST endpoints carry a published sunset date of 2026-10-06.

SimilarWeb publishes 14 API contracts indexed on the APIs.io network, including Account API, App Intelligence API, Credits API, and 11 more. Tagged areas include Digital Intelligence, Web Analytics, Traffic Analytics, Competitive Intelligence, and Keyword Analytics.

The SimilarWeb catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

SimilarWeb’s developer surface includes authentication, documentation, engineering blog, pricing, changelog, API reference, getting-started guide, and 37 more developer resources.

🌐 Visit website📡 Profile data on GitHub
65.1/100 strong ▬ flat Agent 51/100 agent ready Front door AI 5/6 prominent Heartbeat 98/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →
2 published contracts 1 MCP Servers 4 Agent Skills
Digital IntelligenceWeb AnalyticsTraffic AnalyticsCompetitive IntelligenceKeyword AnalyticsAudience DemographicsApp IntelligenceMarket ResearchE-CommerceSEO

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Marketing Management
BC-400
App IntelligenceGeographyKeywordsSimilar SitesTraffic SourcesTraffic and Engagement
GET /v2/website/{domain_name}/similar-sites GET /v5/apps/google/downloads GET /v4/website/{domain_name}/geo/traffic-by-country GET /v4/website-analysis/keywords
Data & Reference Information Services
AE-230
Lead Enrichment
GET /v1/website/{domain_name}/lead-enrichment/all

What people ask SimilarWeb 13

The questions people put to an LLM, and the jobs they hand an agent, that SimilarWeb's APIs answer — each one linked to the operation that does it. Generated by API Evangelist

SimilarWeb Reports API Submit a batch data report request “How do I order a bulk data extract delivered to Snowflake or S3?” Check the status of a batch report “Is my submitted batch report finished yet?” Estimate a batch report's credit cost “How many credits will a batch report cost before I submit it?” List past batch report requests “What batch reports have we requested in the past?”
SimilarWeb Webhooks API Subscribe a URL to webhook events “How do I get notified when a report completes or new data is released?” List active webhook subscriptions “Which webhook subscriptions are active on my account?” Remove a webhook subscription “How do I stop receiving webhook notifications for a subscription?” Send a test notification to a webhook “How can I check that my webhook endpoint is receiving events?”
SimilarWeb Integrations API Connect an Amazon S3 bucket for report delivery “How do I get batch reports delivered straight into my S3 bucket?” Connect a Google Cloud Storage bucket “How do I deliver batch reports to a Google Cloud Storage bucket?” List configured cloud storage integrations “Which cloud storage destinations are already set up on my account?”
SimilarWeb Traffic and Engagement API Get a website's desktop visits over time “How many desktop visits does a website get each month?” Get a website's desktop bounce rate “What's the desktop bounce rate for a website?”
SimilarWeb Rankings API Get a website's global rank “Where does a website rank globally across desktop and mobile?” Review a rank tracking campaign's performance “How is my rank tracking campaign's average position trending?”
SimilarWeb App Intelligence API Get download estimates for an Android app “How many downloads does an Android app get on Google Play each month?” Get download estimates for an iOS app “How many App Store downloads does an iPhone app get?”
SimilarWeb Account API Check remaining data credits “How many data credits do I have left on my Similarweb account?” Check what my subscription covers for a site “What data does my subscription let me pull for a given website?”
SimilarWeb Keywords API Get the keywords driving traffic to a website “Which search keywords send the most traffic to a competitor's site?”
SimilarWeb Traffic Sources API Break down a site's desktop visits by channel “Where does a website's desktop traffic come from: search, social, direct or referrals?”
SimilarWeb Geography API See a website's desktop traffic by country “Which countries send the most desktop traffic to a website?”
SimilarWeb Similar Sites API Find websites similar to a domain “What websites are most similar to a given domain?”
SimilarWeb Credits API Check remaining data credits “How many data credits remain on my account?”

Showing 12 of 13 APIs with phrasing — see every API.

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0
Composite quality — 65.1/100 · strong
Contract Quality 12.0 / 19
Developer Ergonomics 8.8 / 15
Access Clarity 11.3 / 15
Operational Transparency 6.4 / 10
Contract Governance 2.5 / 9
Discoverability 5.6 / 8
Regulatory Posture 5.9 / 15
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 51/100 · 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 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 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 6 / 6
Protected Resource Metadata 5 / 5
Registration Without a Human 6 / 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/.
Show this score on your site. Kin Score badge preview for SimilarWeb It updates itself when the score changes. Paste this where you link to your API docs: 
<a href="https://apis.io/providers/similarweb/"><img src="https://apis.io/badge/similarweb/card.svg" alt="SimilarWeb on APIs.io — Kin Score by API Evangelist"></a>
Other styles, a README pill and a shields.io endpoint are on the badge page.
Raise your score.
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
  • Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too
  • Agentic Commerce Well-Known Document +5 pts — a parsing /.well-known/ucp.json or acp.json declaring a version and at least one service, OR (0.27) a live x402 payment challenge from _data/x402-adoption.json — `self` when its endpoints are on the provider's own domain, `platform` when they are on a vendor's
  • Dry-Run / Simulate Mode +4 pts — OpenAPI: destructive operations expose a dry_run / simulate / preview / validate_only parameter
  • Well-Known Catalog +4 pts — common[].type includes WellKnown, APICatalog, or api-catalog
1 more unmet check in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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/similarweb/apis.yml: open an issue on github.com/api-evangelist/similarweb 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.

MarketPositionDepthRegistered MCP serverDeclares compatibility
Data Marketplaces (data providers on cloud data platforms) builds-on 36.7 - -
Surveys, Market Research and Experience Management builds-on 36.7 - -
HubSpot App Marketplace (CRM add-ons, outbound, performance marketing, chat) builds-on 36.7 - -
Amazon Seller Ecosystem (Selling Partner Appstore, Amazon Ads partners) builds-on 36.7 - -
Browser Extension Stores (company-published Firefox add-ons; Chrome Web Store unreadable) builds-on 36.7 - -
Raycast Store Extensions (first-party publishers + community-wrapped products) builds-on 36.7 - -

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 4

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)
OAuth 2.0 Protected Resource Metadata
measured — observed by APIs.io (verified)
Dynamic Client Registration
measured — observed by APIs.io (published)
OpenAPI
measured — observed by APIs.io (published)

APIs 14

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

SimilarWeb Batch API

The SimilarWeb Batch API is optimized for large-scale bulk data extraction, supporting jobs of up to one million domains per request. It delivers data asynchronously to cloud st...

SimilarWeb Account API

Account credits, capabilities, and usage information

SimilarWeb App Intelligence API

Mobile app downloads, active users, sessions, and demographics

SimilarWeb Credits API

Batch API credit management

SimilarWeb Geography API

Geographic distribution of website traffic

SimilarWeb Integrations API

Manage cloud storage integrations (S3, GCS, Snowflake)

SimilarWeb Keywords API

Keyword analytics including organic and paid keyword data

SimilarWeb Lead Enrichment API

Lead enrichment combining firmographics and web analytics

SimilarWeb Rankings API

Global, country, and industry rank data

SimilarWeb Reports API

Submit, track, and retrieve bulk data report requests

SimilarWeb Similar Sites API

Similar website discovery

SimilarWeb Traffic and Engagement API

Website traffic visits, bounce rate, pages per visit, visit duration

SimilarWeb Traffic Sources API

Marketing channel traffic breakdown including organic, paid, referral, social, and display

SimilarWeb Webhooks API

Webhook subscription management for data-ready notifications

Scroll for all 14

Open Collections 13

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

SimilarWeb Batch Account API

OPEN COLLECTION

SimilarWeb Batch Account App Intelligence API

OPEN COLLECTION

SimilarWeb Batch Account Credits API

OPEN COLLECTION

SimilarWeb Batch Account Geography API

OPEN COLLECTION

SimilarWeb Batch Account Integrations API

OPEN COLLECTION

SimilarWeb Batch Account Keywords API

OPEN COLLECTION

SimilarWeb Batch Account Lead Enrichment API

OPEN COLLECTION

SimilarWeb Batch Account Rankings API

OPEN COLLECTION

SimilarWeb Batch Account Reports API

OPEN COLLECTION

SimilarWeb Batch Account Similar Sites API

OPEN COLLECTION

SimilarWeb Batch Account Traffic and Engagement API

OPEN COLLECTION

SimilarWeb Batch Account Traffic Sources API

OPEN COLLECTION

SimilarWeb Batch Account Webhooks API

OPEN COLLECTION

Scroll for all 13

MCP Servers 1

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

SimilarWeb MCP Server

Similarweb operates a first-party hosted (remote) MCP server at https://mcp.similarweb.com that exposes its Web, Search and App intelligence datasets as MCP tools. It is not an ...

MCP SERVER

Agent Skills 4

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

Run a bulk Similarweb report into cloud storage

AGENT SKILL

Competitive traffic snapshot for a domain

AGENT SKILL

Enrich a company lead from its domain

AGENT SKILL

Get notified when a Similarweb report is ready

AGENT SKILL

SimilarWeb API pricing

Prices published by SimilarWeb, read 2026-10-28 from www.similarweb.com/corp/daas/api/.

PlanPrice
API access Speak to a data expert
Includes: API access is currently available as part of our Business and Enterprise plans, or alternatively as

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Similarweb Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Similarweb Rate Limits

3 limits

RATE LIMITS

Service Levels 1

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

SimilarWeb

SLA

FinOps 1

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

Similarweb Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Similarweb Webhooks

ASYNCAPI

Semantic Vocabularies 1

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

Similarweb Context

7 classes · 49 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

SimilarWeb — jsonschema rules

6 rules · 5 warnings 1 info

SPECTRAL

OpenAPI Overlays 15

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.

Similarweb Account Api Phrasing Overlay

3 actions · phrasing · similarweb-account-api-openapi.yml

GENERATED

Similarweb App Intelligence Api Phrasing Overlay

3 actions · phrasing · similarweb-app-intelligence-api-openapi.yml

GENERATED

Similarweb Batch Api Overlay

6 actions · update · similarweb-batch-api-openapi.yml

DERIVED

Similarweb Credits Api Phrasing Overlay

2 actions · phrasing · similarweb-credits-api-openapi.yml

GENERATED

Similarweb Geography Api Phrasing Overlay

2 actions · phrasing · similarweb-geography-api-openapi.yml

GENERATED

Similarweb Integrations Api Phrasing Overlay

4 actions · phrasing · similarweb-integrations-api-openapi.yml

GENERATED

Similarweb Keywords Api Phrasing Overlay

2 actions · phrasing · similarweb-keywords-api-openapi.yml

GENERATED

Similarweb Lead Enrichment Api Phrasing Overlay

2 actions · phrasing · similarweb-lead-enrichment-api-openapi.yml

GENERATED

Similarweb Rankings Api Phrasing Overlay

3 actions · phrasing · similarweb-rankings-api-openapi.yml

GENERATED

Similarweb Reports Api Phrasing Overlay

7 actions · phrasing · similarweb-reports-api-openapi.yml

GENERATED

Similarweb Rest Api Overlay

6 actions · update · similarweb-rest-api-openapi.yml

DERIVED

Similarweb Similar Sites Api Phrasing Overlay

2 actions · phrasing · similarweb-similar-sites-api-openapi.yml

GENERATED

Similarweb Traffic And Engagement Api Phrasing Overlay

3 actions · phrasing · similarweb-traffic-and-engagement-api-openapi.yml

GENERATED

Similarweb Traffic Sources Api Phrasing Overlay

2 actions · phrasing · similarweb-traffic-sources-api-openapi.yml

GENERATED

Similarweb Webhooks Api Phrasing Overlay

5 actions · phrasing · similarweb-webhooks-api-openapi.yml

GENERATED

Scroll for all 15

JSON Schema 2

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

SimilarWeb Geography Response

2 properties

JSON SCHEMA

SimilarWeb Traffic and Engagement Response

6 properties

JSON SCHEMA

Examples 3

Example request and response payloads for these APIs.

Similarweb Batch Request Example

2 fields

EXAMPLE

Similarweb Geography Example

2 fields

EXAMPLE

Similarweb Visits Desktop Example

2 fields

EXAMPLE

Security Posture 3

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

Similarweb Authentication

apiKey/http · 3 schemes

SECURITY

Similarweb Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Similarweb Trust Center

SOC 2 Type II, ISO 27001

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Similarweb Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Agentic Access 1

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

Similarweb Agentic Access

27 operations · 8 acting

27 operations · 8 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Login
Login

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
AgenticAccess
 WellKnown
WellKnown
 MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conformance
Conformance
 DataModel
DataModel
 Components
Components
 Webhooks
Webhooks

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk
ToolCrosswalk
 Packages
Packages
 GitHubOrganization
GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 Compliance
Compliance
 TrustCenter
TrustCenter
 OAuthScopes
OAuthScopes
 Authentication
Authentication

Operate 5

Status, limits, changes, and where to get help

RateLimits
RateLimits
 Deprecation
Deprecation
 ChangeLog
ChangeLog
 Support
Support
 HelpCenter
HelpCenter

Commercial 5

Pricing, plans, and the legal terms of use

Pricing
Pricing
 Plans
Plans
 FinOps
FinOps
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 3

The organization behind the API

Website
Website
 LinkedIn
LinkedIn
 Blog
Blog

Other 4

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap
 X
X
 Overlay
Overlay
 Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: similarweb
name: SimilarWeb
description: SimilarWeb is a digital intelligence platform offering a REST API for accessing website traffic estimates, audience
  demographics, keyword analytics, competitive benchmarking, app intelligence data, and lead generation insights. The API
  provides real-time and historical data covering traffic sources, search behavior, technographics, e-commerce shopper intelligence,
  and firmographic company data, enabling developers to integrate market intelligence into applications, dashboards, and data
  pipelines. The current generation is API V5, launched March 2026, which unified the REST and Batch API keys, added multi-metric
  requests, and shipped a first-party hosted MCP server at mcp.similarweb.com for AI agents; legacy v1-v4 REST endpoints carry
  a published sunset date of 2026-10-06.
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/similarweb.png
url: https://raw.githubusercontent.com/api-evangelist/similarweb/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-08-13'
specificationVersion: '0.23'
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-04
tags:
- Digital Intelligence
- Web Analytics
- Traffic Analytics
- Competitive Intelligence
- Keyword Analytics
- Audience Demographics
- App Intelligence
- Market Research
- E-Commerce
- SEO
tags_raw:
- Digital Intelligence
- Web Analytics
- Traffic Analytics
- Competitive Intelligence
- Keyword Analytics
- Audience Demographics
- App Intelligence
- Market Research
- E-commerce
- SEO
apis:
- aid: similarweb:similarweb-batch-api
  name: SimilarWeb Batch API
  description: The SimilarWeb Batch API is optimized for large-scale bulk data extraction, supporting jobs of up to one million
    domains per request. It delivers data asynchronously to cloud storage destinations including Amazon S3, Google Cloud Storage,
    and Snowflake. It is ideal for historical analysis, data warehouse ingestion, and large-scale competitive research workflows.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Batch Processing
  - Bulk Data
  - Data Export
  - Snowflake
  - Amazon S3
  properties:
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  contact:
  - FN: SimilarWeb Support
    url: https://support.similarweb.com/hc/en-us/articles/22089555897373-REST-API
    email: ''
- aid: similarweb:similarweb-account-api
  name: SimilarWeb Account API
  description: Account credits, capabilities, and usage information
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/similarweb-account-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-app-intelligence-api
  name: SimilarWeb App Intelligence API
  description: Mobile app downloads, active users, sessions, and demographics
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - App Intelligence
  properties:
  - type: OpenAPI
    url: openapi/similarweb-app-intelligence-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-credits-api
  name: SimilarWeb Credits API
  description: Batch API credit management
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Credit
  tags_raw:
  - Credits
  properties:
  - type: OpenAPI
    url: openapi/similarweb-credits-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-geography-api
  name: SimilarWeb Geography API
  description: Geographic distribution of website traffic
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Geography
  properties:
  - type: OpenAPI
    url: openapi/similarweb-geography-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-integrations-api
  name: SimilarWeb Integrations API
  description: Manage cloud storage integrations (S3, GCS, Snowflake)
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Integration
  tags_raw:
  - Integrations
  properties:
  - type: OpenAPI
    url: openapi/similarweb-integrations-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-keywords-api
  name: SimilarWeb Keywords API
  description: Keyword analytics including organic and paid keyword data
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Keywords
  properties:
  - type: OpenAPI
    url: openapi/similarweb-keywords-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-lead-enrichment-api
  name: SimilarWeb Lead Enrichment API
  description: Lead enrichment combining firmographics and web analytics
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Lead Enrichment
  properties:
  - type: OpenAPI
    url: openapi/similarweb-lead-enrichment-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-rankings-api
  name: SimilarWeb Rankings API
  description: Global, country, and industry rank data
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Rankings
  properties:
  - type: OpenAPI
    url: openapi/similarweb-rankings-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-reports-api
  name: SimilarWeb Reports API
  description: Submit, track, and retrieve bulk data report requests
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Reports
  properties:
  - type: OpenAPI
    url: openapi/similarweb-reports-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-similar-sites-api
  name: SimilarWeb Similar Sites API
  description: Similar website discovery
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Similar Sites
  properties:
  - type: OpenAPI
    url: openapi/similarweb-similar-sites-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-traffic-and-engagement-api
  name: SimilarWeb Traffic and Engagement API
  description: Website traffic visits, bounce rate, pages per visit, visit duration
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Traffic and Engagement
  properties:
  - type: OpenAPI
    url: openapi/similarweb-traffic-and-engagement-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-traffic-sources-api
  name: SimilarWeb Traffic Sources API
  description: Marketing channel traffic breakdown including organic, paid, referral, social, and display
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Traffic Sources
  properties:
  - type: OpenAPI
    url: openapi/similarweb-traffic-sources-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
- aid: similarweb:similarweb-webhooks-api
  name: SimilarWeb Webhooks API
  description: Webhook subscription management for data-ready notifications
  humanURL: https://developers.similarweb.com/
  baseURL: https://api.similarweb.com
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/similarweb-webhooks-api-openapi.yml
  - type: Documentation
    url: https://developers.similarweb.com/
  - type: GettingStarted
    url: https://developers.similarweb.com/docs/getting-started
  - type: Authentication
    url: https://developers.similarweb.com/docs/authentication
  - type: RateLimits
    url: https://developers.similarweb.com/docs/rate-limit
common:
- type: CapabilityMap
  url: capabilities/similarweb-capability-edges.yml
  name: SimilarWeb Business Capability Map
- type: AgenticAccess
  url: agentic-access/similarweb-agentic-access.yml
- type: DomainSecurity
  url: security/similarweb-domain-security.yml
- type: Authentication
  url: authentication/similarweb-authentication.yml
- type: Website
  url: https://www.similarweb.com/
- type: Documentation
  url: https://developers.similarweb.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/similarweb
- type: Blog
  url: https://www.similarweb.com/blog/
- type: Pricing
  url: https://www.similarweb.com/corp/daas/api/
- type: X
  url: https://x.com/similarweb
- type: Plans
  url: plans/similarweb-plans-pricing.yml
- type: RateLimits
  url: rate-limits/similarweb-rate-limits.yml
- type: FinOps
  url: finops/similarweb-finops.yml
- type: WellKnown
  url: well-known/similarweb-well-known.yml
- type: MCPServer
  url: mcp/similarweb-mcp.yml
- type: ToolCrosswalk
  url: mcp/similarweb-tool-crosswalk.yml
- type: LLMsTxt
  url: llms/similarweb-llms.txt
- type: Packages
  url: packages/similarweb-packages.yml
- type: Conventions
  url: conventions/similarweb-conventions.yml
- type: ErrorCatalog
  url: errors/similarweb-problem-types.yml
- type: Lifecycle
  url: lifecycle/similarweb-lifecycle.yml
- type: Deprecation
  url: https://docs.similarweb.com/api-v5/guides/rest-api-data-version-migration
- type: ChangeLog
  url: changelog/similarweb-changelog.yml
- type: Conformance
  url: conformance/similarweb-conformance.yml
- type: Compliance
  url: https://www.similarweb.com/corp/privacy-security/
- type: TrustCenter
  url: security/similarweb-trust-center.yml
- type: OAuthScopes
  url: scopes/similarweb-scopes.yml
- type: DataModel
  url: data-model/similarweb-data-model.yml
- type: Components
  url: components/similarweb-components.yml
- type: Webhooks
  url: asyncapi/similarweb-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Overlay
  url: overlays/similarweb-rest-api-overlay.yaml
- type: Overlay
  url: overlays/similarweb-batch-api-overlay.yaml
- type: DeveloperPortal
  url: https://docs.similarweb.com/api-v5/
- type: APIReference
  url: https://docs.similarweb.com/api-v5/api-reference/website-analysis-api
- type: GettingStarted
  url: https://docs.similarweb.com/api-v5/getting-started/making-your-first-request
- type: Authentication
  url: https://docs.similarweb.com/api-v5/getting-started/authentication
- type: Support
  url: https://support.similarweb.com/hc/en-us
- type: HelpCenter
  url: https://developers.similarweb.com/docs/getting-help
- type: GitHubOrganization
  url: https://github.com/similarweb
- type: SignUp
  url: https://account.similarweb.com/standard-api
- type: Login
  url: https://pro.similarweb.com/
- type: TermsOfService
  url: https://www.similarweb.com/corp/legal/terms/
- type: PrivacyPolicy
  url: https://www.similarweb.com/corp/legal/privacy-policy/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 24
  pass: local-v1

SimilarWeb API — frequently asked questions

Does SimilarWeb have an API?

Yes. APIs.io lists 14 APIs from SimilarWeb, including SimilarWeb Batch API, SimilarWeb Account API and SimilarWeb App Intelligence API, and 11 more.

Is there an OpenAPI specification for the SimilarWeb API?

Yes. APIs.io indexes 13 OpenAPI specifications for SimilarWeb, each linked for download from this page.

How do I authenticate with the SimilarWeb API?

SimilarWeb documents its authentication (apiKey/http · 3 schemes). The details are profiled on APIs.io as Similarweb Authentication.

How much does the SimilarWeb API cost?

SimilarWeb publishes its prices; its API access plan is Speak to a data expert as of 2026-10-28. APIs.io lists 1 pricing plan for SimilarWeb, with each plan's price, limits and inclusions under Pricing on this page.

Does SimilarWeb have an MCP server?

Yes. APIs.io lists 1 MCP server for SimilarWeb: Similarweb operates a first-party hosted (remote) MCP server at https://mcp.similarweb.com that exposes its Web, Search and App intelligence datasets as MCP tools. It is not an npm or PyPI package — t

Is the SimilarWeb API ready for AI agents?

SimilarWeb has a Kin Score of 65.1 out of 100 (strong) and an Agent Readiness score of 51.1 (agent-ready), scored by API Evangelist on 2026-11-06.

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