Opera website screenshot

Opera

Opera is the Norway-based, Nasdaq-listed (OPRA) maker of the Opera, Opera GX, Opera Air, Opera Mini and Opera Neon web browsers, and the operator of the Opera Ads advertising and monetization platform. Opera Ads exposes six documented HTTP APIs: an advertiser Report API for daily campaign performance, a publisher Inventory Management API for apps and placements, a publisher OFP Report API for revenue and delivery, an ADX DSP Report API for exchange performance, a server-to-server Marketing API for conversion postbacks, and a TUS 1.0.0 resumable File Upload API. Around them sit Android and iOS ad SDKs with mediation adapters for AdMob, AppLovin MAX, TopOn, TradPlus and LevelPlay, an OpenRTB/ADX exchange with Prebid.js and Prebid Server adapters, a web JS ad tag, first-party Go OpenRTB and VAST libraries, and the self-serve Opera Ad Manager console. Authentication differs per API — bearer token, token query parameter, X-API-Key or HMAC signature — and every credential is issued by contacting Opera Ads.

Opera publishes 6 APIs on the APIs.io network, including Inventory API, Marketing API, Report API, and 3 more. Tagged areas include Company, Consumer Technology, Advertising, AdTech, and Browser.

Opera’s developer surface includes authentication, changelog, sandbox, documentation, API reference, getting-started guide, engineering blog, and 29 more developer resources.

🌐 Visit website 📡 Source on GitHub
55.1/100 developing ▲ 8.8 Agent 49/100 agent ready Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
6 APIs 1 MCP Servers
CompanyConsumer TechnologyAdvertisingAdTechBrowserMonetizationOpenRTBMarketingMobile SDKHeader BiddingPublisher MonetizationReporting

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 55.1/100 · developing
Contract Quality 14.9 / 25
Developer Ergonomics 13.8 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 6.8 / 13
Governance 1.4 / 12
Discoverability 9.3 / 10
Agent readiness — 49/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
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 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 3 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
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 6

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.

Opera Publisher Report API

Publisher (OFP) revenue and delivery reporting — a measurement/dimension query returning revenue, eCPM, requests, responses, impressions, clicks, CTR, CPC, fill rate and show ra...

Opera ADX DSP Report API

Demand-side performance reporting for the Opera ADX exchange — daily impressions, requests, fills and revenue over a window of up to 180 consecutive days, authenticated by a tok...

Opera Ads File Upload API

Resumable large-file upload implementing the TUS 1.0.0 protocol, with API-key or HMAC-SHA256 authentication, 4 GB maximum file size, 256 MB chunk ceiling and 7-day session expir...

Open Collections 4

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

API Collection

OPEN COLLECTION

Opera Ads Open Inventory API

OPEN COLLECTION

Opera Ads Open Inventory Marketing API

OPEN COLLECTION

Opera Ads Open Inventory Report API

OPEN COLLECTION

MCP Servers 1

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

opera-mcp.yml

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Opera Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Opera Rate Limits

1 limits

RATE LIMITS

Security Posture 3

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

Opera Authentication

http/apiKey/custom-hmac/unauthenticated · 5 schemes

SECURITY

Opera Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Opera Vulnerability Disclosure

Bugcrowd · security.txt · contact published

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

Sandbox
Sandbox
 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 7

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 ErrorCodes
ErrorCodes
 Lifecycle
Lifecycle
 Conventions
Conventions
 DataModel
DataModel
 Components
Components

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 ToolCrosswalk
ToolCrosswalk
 GitHubOrganization
GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 SecurityTxt
SecurityTxt

Operate 3

Status, limits, changes, and where to get help

RateLimits
RateLimits
 ChangeLog
ChangeLog
 Support
Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans
Plans
 Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Other 1

Properties that don't map to a standard resource type

Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: opera
name: Opera
description: 'Opera is the Norway-based, Nasdaq-listed (OPRA) maker of the Opera, Opera GX, Opera Air, Opera Mini and Opera
  Neon web browsers, and the operator of the Opera Ads advertising and monetization platform. Opera Ads exposes six documented
  HTTP APIs: an advertiser Report API for daily campaign performance, a publisher Inventory Management API for apps and placements,
  a publisher OFP Report API for revenue and delivery, an ADX DSP Report API for exchange performance, a server-to-server
  Marketing API for conversion postbacks, and a TUS 1.0.0 resumable File Upload API. Around them sit Android and iOS ad SDKs
  with mediation adapters for AdMob, AppLovin MAX, TopOn, TradPlus and LevelPlay, an OpenRTB/ADX exchange with Prebid.js and
  Prebid Server adapters, a web JS ad tag, first-party Go OpenRTB and VAST libraries, and the self-serve Opera Ad Manager
  console. Authentication differs per API — bearer token, token query parameter, X-API-Key or HMAC signature — and every credential
  is issued by contacting Opera Ads.'
url: https://raw.githubusercontent.com/api-evangelist/opera/refs/heads/main/apis.yml
accessModel:
  pricing: contact-sales
  onboarding: sales-assisted
  trial: false
  try_now: false
  public: false
  label: Contact sales for API credentials
  confidence: high
  source:
  - authentication
  - plans
  generated: '2026-08-13'
  method: searched
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: '2026-08-13'
tags:
- Company
- Consumer Technology
- Advertising
- AdTech
- Browser
- Monetization
- OpenRTB
- Marketing
- Mobile SDK
- Header Bidding
- Publisher Monetization
- Reporting
apis:
- aid: opera:opera-inventory-api
  name: Opera Inventory API
  description: Publisher app and placement (inventory) management.
  humanURL: https://doc.adx.opera.com/publisher/inventory-management-api
  baseURL: https://ofp.adx.opera.com/openapi/inventory/v1
  tags:
  - Inventory
  properties:
  - type: OpenAPI
    url: openapi/opera-inventory-api-openapi.yml
  - type: Documentation
    url: https://doc.adx.opera.com/publisher/inventory-management-api
  - type: APIReference
    url: https://doc.adx.opera.com/publisher/inventory-management-api
- aid: opera:opera-marketing-api
  name: Opera Marketing API
  description: Server-to-server conversion event reporting.
  humanURL: https://doc.adx.opera.com/advertiser/events-integration/server-to-server-marketing-api
  baseURL: https://cb.adx.opera.com
  tags:
  - Marketing
  properties:
  - type: OpenAPI
    url: openapi/opera-marketing-api-openapi.yml
  - type: Documentation
    url: https://doc.adx.opera.com/advertiser/events-integration/
  - type: APIReference
    url: https://doc.adx.opera.com/advertiser/events-integration/server-to-server-marketing-api
- aid: opera:opera-report-api
  name: Opera Report API
  description: Advertiser reporting on campaign performance.
  humanURL: https://doc.adx.opera.com/advertiser/report-api
  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/advertiser/report-api
  - type: APIReference
    url: https://doc.adx.opera.com/advertiser/report-api
- aid: opera:opera-publisher-report-api
  name: Opera Publisher Report API
  description: Publisher (OFP) revenue and delivery reporting — a measurement/dimension query returning revenue, eCPM, requests,
    responses, impressions, clicks, CTR, CPC, fill rate and show rate, plus the older token-in-query inventory report.
  humanURL: https://doc.adx.opera.com/publisher/ofp/report
  baseURL: https://ofp.adx.opera.com
  tags:
  - Report
  - Publisher
  properties:
  - type: OpenAPI
    url: openapi/opera-publisher-report-api-openapi.yml
  - type: Documentation
    url: https://doc.adx.opera.com/publisher/ofp/report
  - type: APIReference
    url: https://doc.adx.opera.com/adx/ssp/report
- aid: opera:opera-dsp-report-api
  name: Opera ADX DSP Report API
  description: Demand-side performance reporting for the Opera ADX exchange — daily impressions, requests, fills and revenue
    over a window of up to 180 consecutive days, authenticated by a token query parameter.
  humanURL: https://doc.adx.opera.com/adx/dsp/report-api
  baseURL: https://cms-adx.op-mobile.opera.com
  tags:
  - Report
  - OpenRTB
  properties:
  - type: OpenAPI
    url: openapi/opera-dsp-report-api-openapi.yml
  - type: Documentation
    url: https://doc.adx.opera.com/adx/dsp/
  - type: APIReference
    url: https://doc.adx.opera.com/adx/dsp/report-api
- aid: opera:opera-file-upload-api
  name: Opera Ads File Upload API
  description: Resumable large-file upload implementing the TUS 1.0.0 protocol, with API-key or HMAC-SHA256 authentication,
    4 GB maximum file size, 256 MB chunk ceiling and 7-day session expiry. The upload host is issued per customer by the Opera
    Ads team.
  humanURL: https://doc.adx.opera.com/advertiser/file_upload_api
  baseURL: https://{host}/upload
  tags:
  - Upload
  - Files
  properties:
  - type: OpenAPI
    url: openapi/opera-file-upload-api-openapi.yml
  - type: Documentation
    url: https://doc.adx.opera.com/advertiser/file_upload_api
  - type: APIReference
    url: https://doc.adx.opera.com/advertiser/file_upload_api
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/opera-ads-overlay.yaml
- 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: ToolCrosswalk
  url: mcp/opera-tool-crosswalk.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: ErrorCodes
  url: errors/opera-sdk-error-codes.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: RateLimits
  url: rate-limits/opera-rate-limits.yml
- type: Plans
  url: plans/opera-plans-pricing.yml
- type: ChangeLog
  url: changelog/opera-changelog.yml
- type: Sandbox
  url: sandbox/opera-sandbox.yml
- type: Components
  url: components/opera-components.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/ads/
- type: Support
  url: https://help.opera.com/en/
- type: SignUp
  url: https://admanager.opera.com/
- type: Pricing
  url: https://www.opera.com/ads
- type: TermsOfService
  url: https://www.opera.com/legal/terms
- type: PrivacyPolicy
  url: https://www.opera.com/privacy
- type: Website
  url: https://opera.com/
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 12
  pass: local-v1