GumGum

GumGum is a Santa Monica-based advertising technology company, founded in 2008, that sells contextual, CTV/online-video and high-impact display advertising built on its own content intelligence. Its GumGum Contextual platform (formerly Verity) uses in-house computer vision and natural language processing to read the text, images, video and audio of a page or asset before the bid, returning IAB Content Taxonomy classifications (v1, v2 and v3), extracted keywords, named entities, brand-safety and suitability threats, and sentiment. That analysis is exposed to publishers, DSPs, agencies and advertisers as a server-to-server REST API at verity-api.gumgum.com with separate Page, Video, Intravideo, Image and Text surfaces, plus an asynchronous webhook callback for delivering completed classifications. GumGum also ships an open-source Prebid.js bid adapter for header bidding, and holds Media Rating Council accreditation for content-level classification across desktop, mobile web and CTV.

GumGum is listed with 6 APIs on the APIs.io network, including Image API, Intravideo API, Page API, and 3 more. Tagged areas include Advertising, AdTech, Contextual Advertising, Brand Safety, and content-classification.

The GumGum catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

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

🌐 Visit website 📡 Profile data on GitHub

43.7/100 developing ▬ flat Agent 25/100 agent aware Front door AI 1/6 silent Heartbeat 0/100 dormant open core · Apache-2.0 Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

6 APIs 3 Agent Skills

Advertising AdTech Contextual Advertising Brand Safetycontent-classificationComputer Vision Natural Language Processing Video Analysis Image Analysis Connected TV Header Bidding Programmatic Advertisingiab-taxonomyContent Moderation

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 43.7/100 · developing

Contract Quality 3.5 / 16

Developer Ergonomics 7.7 / 13

Access Clarity 5.5 / 13

Operational Transparency 3.4 / 8

Contract Governance 2.5 / 8

Discoverability 5.1 / 7

Regulatory Posture 3.3 / 15

Open Source Surface 5.0 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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 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 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.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 65 points between them, because both conditional facets apply and carry 35 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 65% 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
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) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 21.7 — up to +19.6 composite points Ask about this →
Access Clarity scores 42.6 — up to +11.5 composite points Ask about this →
Developer Ergonomics scores 58.9 — up to +8.2 composite points Ask about this →

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.

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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/gumgum/apis.yml: open an issue on github.com/api-evangelist/gumgum 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
ONVIF Video Analytics (video surveillance, edge cameras, computer vision)	standard	47.3	-	-
TAG-Certified Ad Fraud and Brand Safety	standard	47.3	-	-

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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 6

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

GumGum Prebid Header Bidding Endpoint

GumGum's real-time bidding endpoint for header bidding, integrated through the open-source Prebid.js gumgumBidAdapter (bidder code gumgum, alias gg, IAB GVL ID 61). Supports ban...

GumGum Image API

Contextual classification, keyword and threat analysis of a single image.

GumGum Intravideo API

Frame-level (intravideo) classification of a video asset. Version 2 of the video classification surface.

GumGum Page API

Contextual classification and brand-safety analysis of a web page URL.

GumGum Text API

Contextual classification, keyword and brand-safety analysis of a raw block of text.

GumGum Video API

Contextual classification and brand-safety analysis of a video asset, including its audio track.

Open Collections 1

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

GumGum Contextual API

OPEN COLLECTION

Arazzo Workflows 1

Multi-step API workflows described with the Arazzo specification.

Classify a video with GumGum Contextual and retrieve the result

Submit a video asset to the GumGum Contextual API, poll the job until analysis completes, then retrieve the contextual, brand-safety and sentiment analysis. Generated by the API...

ARAZZO

Agent Skills 3

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

Classify a web page with GumGum Contextual

AGENT SKILL

Classify text and images with GumGum Contextual

AGENT SKILL

Classify a video with GumGum Contextual

AGENT SKILL

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

GumGum

22 quoted statements, read from GumGum's own page on 2026-11-09.

PRIVACY

Compliance 1

Attestations the provider states (SOC 2, ISO 27001 and others), quoted from its own trust page. APIs.io verifies none of them.

GumGum

1 quoted statement, read from GumGum's own page on 2026-11-09.

COMPLIANCE

Event Specifications 1

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

Gumgum Contextual Webhooks

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

GumGum API Rules

69 rules · 65 error-severity 3 warn-severity 1 info-severity

SPECTRAL

OpenAPI Overlays 1

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.

GumGum Contextual Api Overlay

9 actions · update · gumgum-contextual-api-openapi.yml

DERIVED

Security Posture 2

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

GumGum Authentication

apiKey · 1 scheme

SECURITY

GumGum Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

GumGum Agentic Access

13 operations · 4 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 3

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

LLMsTxt

AgentSkill

AgenticAccess

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Webhooks

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Components

Arazzo

Scroll for all 8

Build 2

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

Compliance

Compliance

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 5

Status, limits, changes, and where to get help

IssueTracker

Releases

Support

StatusPage

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

License

License

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 3

Properties that don't map to a standard resource type

Overlay

Overlay

DataProcessing

DataProcessing

Attestations

Attestations

Source (apis.yml)

aid: gumgum
name: GumGum
description: GumGum is a Santa Monica-based advertising technology company, founded in 2008, that sells contextual, CTV/online-video
  and high-impact display advertising built on its own content intelligence. Its GumGum Contextual platform (formerly Verity)
  uses in-house computer vision and natural language processing to read the text, images, video and audio of a page or asset
  before the bid, returning IAB Content Taxonomy classifications (v1, v2 and v3), extracted keywords, named entities, brand-safety
  and suitability threats, and sentiment. That analysis is exposed to publishers, DSPs, agencies and advertisers as a server-to-server
  REST API at verity-api.gumgum.com with separate Page, Video, Intravideo, Image and Text surfaces, plus an asynchronous webhook
  callback for delivering completed classifications. GumGum also ships an open-source Prebid.js bid adapter for header bidding,
  and holds Media Rating Council accreditation for content-level classification across desktop, mobile web and CTV.
deliveryModel:
  model: open-core
  license: Apache-2.0
  open_source: true
  commercial: true
  callable_host: true
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - 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:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
image: https://cdn.prod.website-files.com/69eee532313396005f3a101b/6a332287fbe7e4cb30bb3ad4_gumgum-metadata-image.jpg
url: https://raw.githubusercontent.com/api-evangelist/gumgum/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.23'
created: '2026-08-01'
modified: '2026-08-01'
tags:
- Advertising
- AdTech
- Contextual Advertising
- Brand Safety
- content-classification
- Computer Vision
- Natural Language Processing
- Video Analysis
- Image Analysis
- Connected TV
- Header Bidding
- Programmatic Advertising
- iab-taxonomy
- Content Moderation
tags_raw:
- advertising
- adtech
- contextual-advertising
- brand-safety
- content-classification
- computer-vision
- natural-language-processing
- video-analysis
- image-analysis
- connected-tv
- header-bidding
- programmatic-advertising
- iab-taxonomy
- content-moderation
- Computer-Vision
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: GumGum Prebid Header Bidding Endpoint
  description: GumGum's real-time bidding endpoint for header bidding, integrated through the open-source Prebid.js gumgumBidAdapter
    (bidder code gumgum, alias gg, IAB GVL ID 61). Supports banner, native and video media types. Bid requests are POSTed
    to the hbid/imp path by the adapter.
  humanURL: https://docs.prebid.org/dev-docs/bidders/gumgum.html
  baseURL: https://g2.gumgum.com
  tags:
  - Header Bidding
  - Programmatic Advertising
  - Advertising
  - Real-Time Bidding
  tags_raw:
  - header-bidding
  - programmatic-advertising
  - advertising
  - real-time-bidding
  properties:
  - type: Documentation
    url: https://docs.prebid.org/dev-docs/bidders/gumgum.html
  - type: SourceCode
    url: https://github.com/prebid/Prebid.js/blob/master/modules/gumgumBidAdapter.js
- aid: gumgum:gumgum-image-api
  name: GumGum Image API
  description: Contextual classification, keyword and threat analysis of a single image.
  humanURL: https://gumgum.jira.com/wiki/spaces/VDC
  baseURL: https://verity-api.gumgum.com
  tags:
  - Image
  properties:
  - type: OpenAPI
    url: openapi/gumgum-image-api-openapi.yml
  - type: Documentation
    url: https://gumgum.jira.com/wiki/spaces/VDC
  - type: APIReference
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712030855
  - type: GettingStarted
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712095256
  - type: Webhooks
    url: asyncapi/gumgum-contextual-webhooks.yml
- aid: gumgum:gumgum-intravideo-api
  name: GumGum Intravideo API
  description: Frame-level (intravideo) classification of a video asset. Version 2 of the video classification surface.
  humanURL: https://gumgum.jira.com/wiki/spaces/VDC
  baseURL: https://verity-api.gumgum.com
  tags:
  - Intravideo
  properties:
  - type: OpenAPI
    url: openapi/gumgum-intravideo-api-openapi.yml
  - type: Documentation
    url: https://gumgum.jira.com/wiki/spaces/VDC
  - type: APIReference
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712030855
  - type: GettingStarted
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712095256
  - type: Webhooks
    url: asyncapi/gumgum-contextual-webhooks.yml
- aid: gumgum:gumgum-page-api
  name: GumGum Page API
  description: Contextual classification and brand-safety analysis of a web page URL.
  humanURL: https://gumgum.jira.com/wiki/spaces/VDC
  baseURL: https://verity-api.gumgum.com
  tags:
  - Page
  properties:
  - type: OpenAPI
    url: openapi/gumgum-page-api-openapi.yml
  - type: Documentation
    url: https://gumgum.jira.com/wiki/spaces/VDC
  - type: APIReference
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712030855
  - type: GettingStarted
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712095256
  - type: Webhooks
    url: asyncapi/gumgum-contextual-webhooks.yml
- aid: gumgum:gumgum-text-api
  name: GumGum Text API
  description: Contextual classification, keyword and brand-safety analysis of a raw block of text.
  humanURL: https://gumgum.jira.com/wiki/spaces/VDC
  baseURL: https://verity-api.gumgum.com
  tags:
  - Text
  properties:
  - type: OpenAPI
    url: openapi/gumgum-text-api-openapi.yml
  - type: Documentation
    url: https://gumgum.jira.com/wiki/spaces/VDC
  - type: APIReference
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712030855
  - type: GettingStarted
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712095256
  - type: Webhooks
    url: asyncapi/gumgum-contextual-webhooks.yml
- aid: gumgum:gumgum-video-api
  name: GumGum Video API
  description: Contextual classification and brand-safety analysis of a video asset, including its audio track.
  humanURL: https://gumgum.jira.com/wiki/spaces/VDC
  baseURL: https://verity-api.gumgum.com
  tags:
  - Video
  properties:
  - type: OpenAPI
    url: openapi/gumgum-video-api-openapi.yml
  - type: Documentation
    url: https://gumgum.jira.com/wiki/spaces/VDC
  - type: APIReference
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712030855
  - type: GettingStarted
    url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712095256
  - type: Webhooks
    url: asyncapi/gumgum-contextual-webhooks.yml
common:
- type: Overlay
  url: overlays/gumgum-contextual-api-overlay.yaml
- type: X-MCPServerCandidate
  url: mcp/gumgum-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: IssueTracker
  url: https://github.com/prebid/Prebid.js/issues
- type: Releases
  url: https://github.com/prebid/Prebid.js/releases
- type: ContributionGuide
  url: https://github.com/prebid/Prebid.js/blob/master/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/prebid/Prebid.js/blob/master/LICENSE
- type: Website
  url: https://gumgum.com/
- type: DeveloperPortal
  url: https://gumgum.jira.com/wiki/spaces/VDC
- type: Documentation
  url: https://gumgum.jira.com/wiki/spaces/VDC
- type: APIReference
  url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712030855
- type: GettingStarted
  url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1712095256
- type: Support
  url: https://gumgum.jira.com/wiki/spaces/VDC/pages/1728217585
- type: Blog
  url: https://gumgum.com/blog
- type: GitHubOrganization
  url: https://github.com/gumgum
- type: Login
  url: https://contextual.gumgum.com/
- type: TermsOfService
  url: https://gumgum.com/terms-and-policies
- type: PrivacyPolicy
  url: https://gumgum.com/privacy-policy
- type: StatusPage
  url: https://status.contextual.gumgum.com
- type: ChangeLog
  url: changelog/gumgum-changelog.yml
- type: Webhooks
  url: asyncapi/gumgum-contextual-webhooks.yml
- type: Compliance
  url: https://gumgum.com/accreditation
- type: LLMsTxt
  url: llms/gumgum-llms.txt
- type: Authentication
  url: authentication/gumgum-authentication.yml
- type: Conventions
  url: conventions/gumgum-conventions.yml
- type: ErrorCatalog
  url: errors/gumgum-problem-types.yml
- type: Lifecycle
  url: lifecycle/gumgum-lifecycle.yml
- type: Conformance
  url: conformance/gumgum-conformance.yml
- type: DataModel
  url: data-model/gumgum-data-model.yml
- type: Packages
  url: packages/gumgum-packages.yml
- type: Components
  url: components/gumgum-components.yml
- type: DomainSecurity
  url: security/gumgum-domain-security.yml
- type: AgentSkill
  url: skills/_index.yml
- type: AgenticAccess
  url: agentic-access/gumgum-agentic-access.yml
- type: Arazzo
  name: Classify a video and retrieve the result
  url: arazzo/gumgum-classify-video.yml
- type: DataProcessing
  url: privacy/gumgum-privacy-policy.yml
- type: Attestations
  url: compliance/gumgum-compliance.yml
x-enrichment:
  date: '2026-08-01'
  status: enriched
  artifacts_added: 23
  pass: local-v1

GumGum API — frequently asked questions

Does GumGum have an API?

Yes. APIs.io lists 6 APIs from GumGum, including GumGum Prebid Header Bidding Endpoint, GumGum Image API and GumGum Intravideo API, and 3 more.

Is there an OpenAPI specification for the GumGum API?

Yes. APIs.io indexes 5 OpenAPI specifications for GumGum, each linked for download from this page.

How do I authenticate with the GumGum API?

GumGum uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as GumGum Authentication.

Is the GumGum API ready for AI agents?

GumGum has a Kin Score of 43.7 out of 100 (developing) and an Agent Readiness score of 24.8 (agent-aware), scored by API Evangelist on 2026-11-13.

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