ZoomInfo

ZoomInfo provides a comprehensive suite of B2B data APIs that deliver company, contact, and intent information to power sales, marketing, and recruiting workflows. The platform aggregates millions of firmographic and technographic records, enabling users to enrich CRM data, build lead lists, and automate outreach. With robust search, enrichment, and intent signals, ZoomInfo helps businesses accelerate revenue generation and improve data quality across the customer lifecycle.

ZoomInfo publishes 8 API contracts indexed on the APIs.io network, including Agent API, Copilot API, Data API, and 5 more. Tagged areas include Company, B2B, Data, and Sales.

The ZoomInfo catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

ZoomInfo’s developer surface includes CLI, authentication, documentation, API reference, getting-started guide, pricing, sandbox, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

50.5/100 developing Agent 42/100 agent ready Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

8 published contracts 1 MCP Servers

Company B2B Data Sales

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 50.5/100 · developing

Contract Quality 13.7 / 21

Developer Ergonomics 9.6 / 17

Access Clarity 5.4 / 17

Operational Transparency 5.2 / 11

Contract Governance 2.2 / 10

Discoverability 5.2 / 9

Regulatory Posture 4.0 / 15

Agent readiness — 42/100 · 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 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 0 / 5

Distinct Operations 3 / 3

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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<a href="https://apis.io/providers/gtm/"><img src="https://apis.io/badge/gtm/card.svg" alt="ZoomInfo on APIs.io — Kin Score by API Evangelist"></a>

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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 github.com/api-evangelist/gtm: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 8

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

Agent API

Agent API V1

Copilot API

Copilot API V1

Data API

Data API V1

Data Quality API

Data Quality API V1

Studio API

GTM Studio API V1

Marketing API

Marketing API V1

Platform API

Platform API V1

Vertical Datasets API

Vertical Datasets API V1

Scroll for all 8

MCP Servers 1

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

ZoomInfo MCP Server

Remote MCP server at docs.gtm.ai.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Gtm Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Gtm Rate Limits

9 limits

RATE LIMITS

Semantic Vocabularies 1

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

Gtm Context

120 classes · 155 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

ZoomInfo API Rules

19 rules · 16 errors 1 warnings 2 info

SPECTRAL

1 properties

JSON SCHEMA

Scroll for all 48

Security Posture 2

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

Gtm Authentication

oauth2 · 1 scheme

SECURITY

Gtm Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Gtm Scopes

28 scopes · authorizationCode

28 scopes

SCOPES

Agentic Access 1

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

Gtm Agentic Access

120 operations · 63 acting · 6 human-in-the-loop

120 operations · 63 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Sandbox

Sandbox

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

AgentSkill

LLMsTxt

MCPServer

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conventions

ErrorCatalog

Conformance

Scroll for all 7

Build 1

SDKs, sample code, and the tooling you integrate with

CLI

CLI

Access & Security 3

Authentication, authorization, and security posture

OAuthScopes

OAuthScopes

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: gtm
name: ZoomInfo
image: https://gtm.ai/opengraph-image
description: ZoomInfo provides a comprehensive suite of B2B data APIs that deliver company, contact, and intent information
  to power sales, marketing, and recruiting workflows. The platform aggregates millions of firmographic and technographic
  records, enabling users to enrich CRM data, build lead lists, and automate outreach. With robust search, enrichment, and
  intent signals, ZoomInfo helps businesses accelerate revenue generation and improve data quality across the customer lifecycle.
url: https://raw.githubusercontent.com/api-evangelist/gtm/refs/heads/main/apis.yml
x-type: company
x-source: harvest:g2-catalog
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-20 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-20'
modified: '2026-10-20'
tags:
- Company
- B2B
- Data
- Sales
tags_raw:
- Company
- B2B
- Data
- API
- Sales
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/gtm-agentic-access.yml
- type: RateLimits
  url: rate-limits/gtm-rate-limits.yml
- type: Plans
  url: plans/gtm-plans-pricing.yml
- type: Spectral
  url: rules/gtm-rules.yml
- type: JSONLD
  url: json-ld/gtm-context.jsonld
- type: Vocabulary
  url: vocabulary/gtm-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/gtm-data-model.yml
- type: CLI
  url: cli/gtm-cli.yml
- type: Conventions
  url: conventions/gtm-conventions.yml
- type: ErrorCatalog
  url: errors/gtm-problem-types.yml
- type: Conformance
  url: conformance/gtm-conformance.yml
- type: LLMsTxt
  url: llms/gtm-llms.txt
- type: AgentCard
  url: a2a/gtm-a2a.yml
- type: MCPServer
  url: mcp/gtm-mcp.yml
- type: WellKnown
  url: well-known/gtm-well-known.yml
- type: Hosts
  url: hosts/gtm-hosts.yml
- type: Vendors
  url: vendors/gtm-vendors.yml
- type: OAuthScopes
  url: scopes/gtm-scopes.yml
- type: Authentication
  url: authentication/gtm-authentication.yml
- type: DomainSecurity
  url: security/gtm-domain-security.yml
- type: Website
  url: https://gtm.ai/
- type: Documentation
  url: https://gtm.ai/docs
- type: APIReference
  url: https://docs.gtm.ai/reference
- type: GettingStarted
  url: https://gtm.ai/docs/mcp/getting-started
- type: Pricing
  url: https://gtm.ai/pricing
- type: Sandbox
  url: https://gtm.ai/playground
- type: ChangeLog
  url: https://gtm.ai/releases
apis:
- name: Agent API
  description: Agent API V1
  humanURL: https://docs.gtm.ai/reference/agent
  baseURL: https://api.gtm.ai/agent
  properties:
  - type: OpenAPI
    url: openapi/gtm-agent-api-v1-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gtm-agent-stream-event-schema.json
  - type: JSONSchema
    url: json-schema/gtm-pulses-list-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-agents-list-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-agent-runs-list-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-start-agent-run-request-body-schema.json
  - type: JSONSchema
    url: json-schema/gtm-agent-detail-response-schema.json
  aid: gtm:agent-api
- name: Copilot API
  description: Copilot API V1
  humanURL: https://docs.gtm.ai/reference/copilot
  baseURL: https://api.gtm.ai/copilot
  properties:
  - type: OpenAPI
    url: openapi/gtm-copilot-api-v1-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gtm-customer-buyer-persona-upsert-schema.json
  - type: JSONSchema
    url: json-schema/gtm-ideal-company-segment-upsert-schema.json
  - type: JSONSchema
    url: json-schema/gtm-organization-offering-upsert-schema.json
  - type: JSONSchema
    url: json-schema/gtm-customer-competitor-upsert-schema.json
  - type: JSONSchema
    url: json-schema/gtm-company-insights-by-type-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-account-summary-question-request-schema.json
  aid: gtm:copilot-api
- name: Data API
  description: Data API V1
  humanURL: https://docs.gtm.ai/reference/data
  baseURL: https://api.gtm.ai/data
  properties:
  - type: OpenAPI
    url: openapi/gtm-data-api-v1-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gtm-intent-enrich-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-scoop-enrich-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-news-enrich-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-org-chart-enrich-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-company-search-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-intent-search-response-schema.json
  aid: gtm:data-api
- name: Data Quality API
  description: Data Quality API V1
  humanURL: https://docs.gtm.ai/reference/data-quality
  baseURL: https://api.gtm.ai/data-quality
  properties:
  - type: OpenAPI
    url: openapi/gtm-data-quality-api-v1-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gtm-data-quality-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-data-quality-request-schema.json
  - type: JSONSchema
    url: json-schema/gtm-normalize-config-list-json-api-model-schema.json
  - type: JSONSchema
    url: json-schema/gtm-segment-config-list-json-api-model-schema.json
  - type: JSONSchema
    url: json-schema/gtm-score-config-list-json-api-model-schema.json
  - type: JSONSchema
    url: json-schema/gtm-normalize-config-json-api-model-create-schema.json
  aid: gtm:data-quality-api
- name: Studio API
  description: GTM Studio API V1
  humanURL: https://docs.gtm.ai/reference/studio
  baseURL: https://api.gtm.ai/studio
  properties:
  - type: OpenAPI
    url: openapi/gtm-studio-api-v1-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gtm-audiences-json-api-list-schema.json
  - type: JSONSchema
    url: json-schema/gtm-folder-json-api-list-schema.json
  - type: JSONSchema
    url: json-schema/gtm-get-rows-json-api-model-schema.json
  - type: JSONSchema
    url: json-schema/gtm-upsert-rows-json-api-model-schema.json
  - type: JSONSchema
    url: json-schema/gtm-row-upsert-list-api-model-schema.json
  - type: JSONSchema
    url: json-schema/gtm-bulk-row-upsert-list-api-model-schema.json
  aid: gtm:studio-api
- name: Marketing API
  description: Marketing API V1
  humanURL: https://docs.gtm.ai/reference/marketing
  baseURL: https://api.gtm.ai/marketing
  properties:
  - type: OpenAPI
    url: openapi/gtm-marketing-api-v1-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gtm-get-audiences-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-audience-upload-model-create-schema.json
  - type: JSONSchema
    url: json-schema/gtm-audience-upload-model-schema.json
  - type: JSONSchema
    url: json-schema/gtm-audience-model-create-schema.json
  - type: JSONSchema
    url: json-schema/gtm-audience-model-update-schema.json
  - type: JSONSchema
    url: json-schema/gtm-audience-model-schema.json
  aid: gtm:marketing-api
- name: Platform API
  description: Platform API V1
  humanURL: https://docs.gtm.ai/reference/platform
  baseURL: https://api.gtm.ai/platform
  properties:
  - type: OpenAPI
    url: openapi/gtm-platform-api-v1-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gtm-exports-list-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-content-interaction-upsert-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-content-interaction-upsert-request-schema.json
  - type: JSONSchema
    url: json-schema/gtm-content-interaction-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-execute-export-request-body-schema.json
  - type: JSONSchema
    url: json-schema/gtm-execution-response-schema.json
  aid: gtm:platform-api
- name: Vertical Datasets API
  description: Vertical Datasets API V1
  humanURL: https://docs.gtm.ai/reference/vertical-datasets
  baseURL: https://api.gtm.ai/vertical-datasets
  properties:
  - type: OpenAPI
    url: openapi/gtm-vertical-datasets-api-v1-api-openapi.yml
  - type: JSONSchema
    url: json-schema/gtm-managed-service-provider-search-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-financial-filing-search-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-loan-statement-search-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-product-review-search-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-earnings-call-search-response-schema.json
  - type: JSONSchema
    url: json-schema/gtm-job-post-search-response-schema.json
  aid: gtm:vertical-datasets-api
x-enrichment:
  date: '2026-10-20'
  status: enriched
  artifacts_added: 49
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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