Opera

Opera is the Norway-based maker of the Opera, Opera GX, and Opera Mini web browsers and operator of the Opera Ads advertising and monetization platform. Opera Ads exposes a public Open API for advertisers (daily campaign reporting and server-to-server conversion events) and for publishers (app and placement inventory management), alongside Android/iOS ad SDKs, an OpenRTB/ADX exchange, first-party Go client and protocol libraries, and a self-serve Opera Ad Manager. API authentication is via a bearer token issued by Opera Ads.

Opera publishes 3 APIs on the APIs.io network: Inventory API, Marketing API, and Report API. Tagged areas include Company, Consumer Technology, Advertising, AdTech, and Browser.

Opera’s developer surface includes authentication, documentation, API reference, getting-started guide, engineering blog, signup flow, pricing, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub
47.2/100 developing ▬ flat Agent 58/100 agent ready Full breakdown ↓
scored 2026-07-23 · rubric v0.5
AccessSelf serve
3 APIs 1 MCP Servers
CompanyConsumer TechnologyAdvertisingAdTechBrowserMonetizationOpenRTBMarketing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-23 · rubric v0.5
Composite quality — 47.2/100 · developing
Contract Quality 14.4 / 25
Developer Ergonomics 13.9 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 2.1 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 58/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 15
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 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 3 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/opera: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 3

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

Opera Inventory API

Publisher app and placement (inventory) management.

Opera Marketing API

Server-to-server conversion event reporting.

Opera Report API

Advertiser reporting on campaign performance.

MCP Servers 1

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

opera-mcp.yml

MCP SERVER

Security Posture 3

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

Opera Authentication

http · 1 scheme

SECURITY

Opera Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Opera Vulnerability Disclosure

Bugcrowd · security.txt · contact published

SECURITY

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 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 LLMsTxt
LLMsTxt
 WellKnown
WellKnown
 AgentSkill
AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 Conventions
Conventions
 DataModel
DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 GitHubOrganization
GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 SecurityTxt
SecurityTxt

Commercial 2

Pricing, plans, and the legal terms of use

Pricing
Pricing
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: opera
name: Opera
description: Opera is the Norway-based maker of the Opera, Opera GX, and Opera Mini web browsers and operator of the Opera
  Ads advertising and monetization platform. Opera Ads exposes a public Open API for advertisers (daily campaign reporting
  and server-to-server conversion events) and for publishers (app and placement inventory management), alongside Android/iOS
  ad SDKs, an OpenRTB/ADX exchange, first-party Go client and protocol libraries, and a self-serve Opera Ad Manager. API authentication
  is via a bearer token issued by Opera Ads.
url: https://raw.githubusercontent.com/api-evangelist/opera/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://github.com/operaads.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- idg-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Consumer Technology
- Advertising
- AdTech
- Browser
- Monetization
- OpenRTB
- Marketing
apis:
- aid: opera:opera-inventory-api
  name: Opera Inventory API
  description: Publisher app and placement (inventory) management.
  humanURL: https://doc.adx.opera.com/
  baseURL: https://ofa.adx.opera.com/oapi/v1
  tags:
  - Inventory
  properties:
  - type: OpenAPI
    url: openapi/opera-inventory-api-openapi.yml
  - type: Documentation
    url: https://doc.adx.opera.com/
  - type: APIReference
    url: https://doc.adx.opera.com/advertiser/report-api
- aid: opera:opera-marketing-api
  name: Opera Marketing API
  description: Server-to-server conversion event reporting.
  humanURL: https://doc.adx.opera.com/
  baseURL: https://ofa.adx.opera.com/oapi/v1
  tags:
  - Marketing
  properties:
  - type: OpenAPI
    url: openapi/opera-marketing-api-openapi.yml
  - type: Documentation
    url: https://doc.adx.opera.com/
  - type: APIReference
    url: https://doc.adx.opera.com/advertiser/report-api
- aid: opera:opera-report-api
  name: Opera Report API
  description: Advertiser reporting on campaign performance.
  humanURL: https://doc.adx.opera.com/
  baseURL: https://ofa.adx.opera.com/oapi/v1
  tags:
  - Report
  properties:
  - type: OpenAPI
    url: openapi/opera-report-api-openapi.yml
  - type: Documentation
    url: https://doc.adx.opera.com/
  - type: APIReference
    url: https://doc.adx.opera.com/advertiser/report-api
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Authentication
  url: authentication/opera-authentication.yml
- type: DomainSecurity
  url: security/opera-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/opera-vulnerability-disclosure.yml
- type: Security
  url: https://security.opera.com/policy/
- type: Packages
  url: packages/opera-packages.yml
- type: SDKs
  url: packages/opera-packages.yml
- type: MCPServer
  url: mcp/opera-mcp.yml
- type: LLMsTxt
  url: llms/opera-llms.txt
- type: WellKnown
  url: well-known/opera-well-known.yml
- type: SecurityTxt
  url: well-known/opera-security.txt
- type: Conformance
  url: conformance/opera-conformance.yml
- type: ErrorCatalog
  url: errors/opera-problem-types.yml
- type: Lifecycle
  url: lifecycle/opera-lifecycle.yml
- type: Conventions
  url: conventions/opera-conventions.yml
- type: DataModel
  url: data-model/opera-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DeveloperPortal
  url: https://doc.adx.opera.com/
- type: Documentation
  url: https://doc.adx.opera.com/
- type: APIReference
  url: https://doc.adx.opera.com/advertiser/report-api
- type: GettingStarted
  url: https://doc.adx.opera.com/publisher/onboarding/
- type: GitHubOrganization
  url: https://github.com/operaads
- type: Blog
  url: https://blogs.opera.com/
- type: SignUp
  url: https://admanager.opera.com/
- type: Pricing
  url: https://www.opera.com/ads
- type: PrivacyPolicy
  url: https://www.opera.com/privacy
- type: Website
  url: https://opera.com/
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 19
  pass: local-v1