6sense

6sense Insights is a B2B revenue AI platform that identifies in-market accounts from anonymous buying signals and orchestrates marketing and sales against them. Its Signalverse intent graph, Master Company Database of roughly 76 million company accounts and predictive models power account-based marketing, advertising, AI email agents and sales intelligence. For developers, 6sense exposes six HTTP data APIs across three hosts — Company Identification, Company Firmographics, Lead Scoring, Lead Scoring and Firmographics, People Enrichment and People Search — plus the acquired AI Email (Saleswhale) API with a signed webhook surface, and a hosted remote MCP server at api.6sense.com/mcp for agent access. Access is token-based and metered against contract-year credit pools rather than list-priced plans.

6sense publishes 4 APIs on the APIs.io network, including Company API, Enrichment API, People API, and 1 more. Tagged areas include Account Based Marketing, Intent Data, B2B, Predictive Analytics, and Revenue.

The 6sense catalog on APIs.io includes 2 event-driven AsyncAPI specifications, 1 JSON-LD context, and 1 Spectral governance ruleset.

6sense’s developer surface includes authentication, documentation, developer portal, support, engineering blog, GitHub presence, pricing, and 40 more developer resources.

🌐 Visit website 📡 Source on GitHub

70.6/100 exemplar ▬ flat Agent 50/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

7 APIs 1 MCP Servers

Account Based Marketing Intent Data B2B Predictive Analytics Revenue Sales Intelligence Artificial Intelligence Marketing Technology

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 70.6/100 · exemplar

Contract Quality 15.2 / 23

Developer Ergonomics 10.6 / 18

Access Clarity 16.8 / 18

Operational Transparency 9.5 / 12

Contract Governance 4.7 / 11

Discoverability 7.3 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 50/100 · 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 0 / 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

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.

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/6sense: 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 5

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

6sense Company API

The Company API from 6sense — 1 operation(s) for company.

6sense Enrichment API

The Enrichment API from 6sense — 2 operation(s) for enrichment.

6sense People API

The People API from 6sense — 4 operation(s) for people.

6sense MCP Server

Hosted remote Model Context Protocol server at https://api.6sense.com/mcp (beta). Read-only retrieval of Revvy AI-powered 6sense insights — account insights, 6QA trends, keyword...

6sense Scoring API

The Scoring API from 6sense — 1 operation(s) for scoring.

Open Collections 10

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

API Collection

OPEN COLLECTION

6sense Firmographics Company API

OPEN COLLECTION

6sense Company Firmographics API

OPEN COLLECTION

6sense Company Identification API

OPEN COLLECTION

6sense Firmographics Company Enrichment API

OPEN COLLECTION

6sense Lead Scoring API

OPEN COLLECTION

6sense Lead Scoring And Firmographics API

OPEN COLLECTION

6sense Firmographics Company People API

OPEN COLLECTION

6sense People Enrichment API

OPEN COLLECTION

6sense People Search API

OPEN COLLECTION

Scroll for all 10

MCP Servers 1

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

6sense MCP

MCP SERVER

GraphQL 1

GraphQL schemas published by this provider.

6sense GraphQL Schema

This document describes a conceptual GraphQL schema for the 6sense Revenue AI Platform, covering account-based marketing (ABM), intent data, predictive scoring, firmographic and...

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

6Sense Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

6Sense Rate Limits

6 limits

RATE LIMITS

FinOps 1

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

6Sense Finops

FINOPS

Event Specifications 2

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

6sense AI Email Webhooks

Outbound webhook events emitted by the 6sense AI Email product (formerly Conversational Email, formerly Saleswhale) to a customer-configured Target URL. PROVENANCE: 6sense does ...

ASYNCAPI

6Sense Ai Email Webhooks

ASYNCAPI

Semantic Vocabularies 1

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

6Sense Context

0 classes · 4 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

6sense API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 3

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

6sense Company

20 properties

JSON SCHEMA

6sense Enriched Contact

17 properties

JSON SCHEMA

6sense Product Score

10 properties

JSON SCHEMA

Security Posture 3

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

6Sense Authentication

apiKey/oauth2 · 4 schemes

SECURITY

6Sense Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

6Sense Trust Center

SOC 2, ISO 27001, GDPR

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

6Sense Scopes

1 scope · authorizationCode/clientCredentials

1 scopes

SCOPES

Agentic Access 1

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

6Sense Agentic Access

7 operations · 5 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Portal

Portal

GettingStarted

GettingStarted

Login

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

MCPServer

WellKnown

LLMsTxt

AgentSkill

Design & Contract 9

Pagination, idempotency, versioning, errors, and events

Vocabulary

JSONLD

Conventions

ErrorCatalog

Lifecycle

Conformance

Webhooks

DataModel

Components

Scroll for all 9

Build 4

SDKs, sample code, and the tooling you integrate with

Github

Github

ToolCrosswalk

ToolCrosswalk

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 6

Authentication, authorization, and security posture

Trust

TrustCenter

DomainSecurity

Authentication

OAuthScopes

Compliance

Operate 6

Status, limits, changes, and where to get help

Support

RateLimits

StatusPage

Deprecation

ChangeLog

ChangeLog

Commercial 5

Pricing, plans, and the legal terms of use

PrivacyPolicy

Pricing

Plans

FinOps

TermsOfService

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Other 2

Properties that don't map to a standard resource type

Overlay

Overlay

CaseStudies

CaseStudies

Source (apis.yml)

aid: 6sense
url: https://raw.githubusercontent.com/api-evangelist/6sense/refs/heads/main/apis.yml
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
specificationVersion: '0.23'
apis:
- aid: 6sense:6sense-company-api
  name: 6sense Company API
  description: The Company API from 6sense — 1 operation(s) for company.
  humanURL: https://api.6sense.com/docs/
  baseURL: https://epsilon.6sense.com
  tags:
  - Company
  properties:
  - type: OpenAPI
    url: openapi/6sense-company-api-openapi.yml
  - type: Overlay
    url: overlays/6sense-company-overlay.yaml
  - type: Documentation
    url: https://api.6sense.com/docs/
  - type: Documentation
    url: https://support.6sense.com/docs/6sense-api-overview
  - type: JSONSchema
    url: json-schema/6sense-company-schema.json
  - type: JSONSchema
    url: json-schema/6sense-score-schema.json
  - type: JSONLD
    url: json-ld/6sense-context.jsonld
  - type: JSONSchema
    url: json-schema/6sense-contact-schema.json
- aid: 6sense:6sense-enrichment-api
  name: 6sense Enrichment API
  description: The Enrichment API from 6sense — 2 operation(s) for enrichment.
  humanURL: https://api.6sense.com/docs/
  baseURL: https://api.6sense.com
  tags:
  - Enrichment
  properties:
  - type: OpenAPI
    url: openapi/6sense-enrichment-api-openapi.yml
  - type: Overlay
    url: overlays/6sense-enrichment-overlay.yaml
  - type: Documentation
    url: https://api.6sense.com/docs/
  - type: Documentation
    url: https://support.6sense.com/docs/6sense-api-overview
  - type: JSONSchema
    url: json-schema/6sense-company-schema.json
  - type: JSONSchema
    url: json-schema/6sense-score-schema.json
  - type: JSONLD
    url: json-ld/6sense-context.jsonld
  - type: JSONSchema
    url: json-schema/6sense-contact-schema.json
- aid: 6sense:6sense-people-api
  name: 6sense People API
  description: The People API from 6sense — 4 operation(s) for people.
  humanURL: https://api.6sense.com/docs/
  baseURL: https://api.6sense.com
  tags:
  - People
  properties:
  - type: OpenAPI
    url: openapi/6sense-people-api-openapi.yml
  - type: Overlay
    url: overlays/6sense-people-overlay.yaml
  - type: Documentation
    url: https://api.6sense.com/docs/
  - type: Documentation
    url: https://support.6sense.com/docs/6sense-api-overview
  - type: JSONSchema
    url: json-schema/6sense-company-schema.json
  - type: JSONSchema
    url: json-schema/6sense-score-schema.json
  - type: JSONLD
    url: json-ld/6sense-context.jsonld
  - type: JSONSchema
    url: json-schema/6sense-contact-schema.json
- aid: 6sense:6sense-mcp
  name: 6sense MCP Server
  description: Hosted remote Model Context Protocol server at https://api.6sense.com/mcp (beta). Read-only retrieval of Revvy
    AI-powered 6sense insights — account insights, 6QA trends, keyword performance, ad campaign performance, website activity
    and segment discovery — for Claude, ChatGPT and Microsoft Copilot Studio. Per-user OAuth 2.1 with dynamic client registration
    and PKCE; single scope mcp:use.
  humanURL: https://support.6sense.com/docs/6sense-model-context-protocol-mcp-1
  baseURL: https://api.6sense.com/mcp
  tags:
  - MCP
  - Agents
  - Artificial Intelligence
  tags_raw:
  - MCP
  - Agents
  - AI
  properties:
  - type: MCPServer
    url: mcp/6sense-mcp.yml
  - type: ToolCrosswalk
    url: mcp/6sense-tool-crosswalk.yml
  - type: OAuthScopes
    url: scopes/6sense-scopes.yml
  - type: Documentation
    url: https://support.6sense.com/docs/6sense-model-context-protocol-mcp-1
  - type: GettingStarted
    url: https://support.6sense.com/docs/set-up-the-6sense-mcp-in-claude
- aid: 6sense:6sense-scoring-api
  name: 6sense Scoring API
  description: The Scoring API from 6sense — 1 operation(s) for scoring.
  humanURL: https://api.6sense.com/docs/
  baseURL: https://epsilon.6sense.com
  tags:
  - Scoring
  properties:
  - type: OpenAPI
    url: openapi/6sense-scoring-api-openapi.yml
  - type: Documentation
    url: https://api.6sense.com/docs/
  - type: APIReference
    url: https://api.6sense.com/docs/
name: 6sense
description: 6sense Insights is a B2B revenue AI platform that identifies in-market accounts from anonymous buying signals
  and orchestrates marketing and sales against them. Its Signalverse intent graph, Master Company Database of roughly 76 million
  company accounts and predictive models power account-based marketing, advertising, AI email agents and sales intelligence.
  For developers, 6sense exposes six HTTP data APIs across three hosts — Company Identification, Company Firmographics, Lead
  Scoring, Lead Scoring and Firmographics, People Enrichment and People Search — plus the acquired AI Email (Saleswhale) API
  with a signed webhook surface, and a hosted remote MCP server at api.6sense.com/mcp for agent access. Access is token-based
  and metered against contract-year credit pools rather than list-priced plans.
created: '2026-05-25'
modified: '2026-08-13'
tags:
- Account Based Marketing
- Intent Data
- B2B
- Predictive Analytics
- Revenue
- Sales Intelligence
- Artificial Intelligence
- Marketing Technology
tags_raw:
- ABM
- Account-Based Marketing
- Intent Data
- B2B
- Predictive Analytics
- Revenue
- Sales Intelligence
- AI
- Marketing Technology
kind: contract
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/6sense.png
access: 3rd-Party
common:
- type: DeveloperPortal
  url: https://api.6sense.com/docs/
- type: PrivacyPolicy
  url: https://6sense.com/privacy-policy/
- type: Trust
  url: https://trust.6sense.com/
- type: Overlay
  url: overlays/6sense-scribe-overlay.yaml
- type: AgenticAccess
  url: agentic-access/6sense-agentic-access.yml
- type: TrustCenter
  url: security/6sense-trust-center.yml
- type: DomainSecurity
  url: security/6sense-domain-security.yml
- type: Authentication
  url: authentication/6sense-authentication.yml
- url: https://6sense.com
  type: Website
- url: https://6sense.com/platform
  name: Revenue AI Platform
  type: Documentation
- url: https://api.6sense.com/docs/
  name: 6sense API Portal
  type: Portal
- url: https://support.6sense.com/docs/6sense-api-overview
  name: API Overview
  type: Documentation
- url: https://support.6sense.com
  name: Knowledge Base
  type: Support
- url: https://6sense.com/customers
  name: Customers
  type: CaseStudies
- url: https://6sense.com/blog
  name: Blog
  type: Blog
- url: https://www.linkedin.com/company/6sense
  type: LinkedIn
- url: https://github.com/6si
  name: 6si GitHub Org
  type: Github
- url: https://6sense.com/pricing
  name: Pricing
  type: Pricing
- url: plans/6sense-plans-pricing.yml
  name: API Commons Plans
  type: Plans
- url: rate-limits/6sense-rate-limits.yml
  name: Rate Limits
  type: RateLimits
- url: finops/6sense-finops.yml
  name: FinOps Definition
  type: FinOps
- url: vocabulary/6sense-vocabulary.yml
  name: Vocabulary
  type: Vocabulary
- url: json-ld/6sense-context.jsonld
  name: JSON-LD Context
  type: JSONLD
- type: MCPServer
  url: mcp/6sense-mcp.yml
  name: 6sense MCP Server
- type: ToolCrosswalk
  url: mcp/6sense-tool-crosswalk.yml
  name: MCP to REST Tool Crosswalk
- type: WellKnown
  url: well-known/6sense-well-known.yml
  name: Well-Known Discovery Probe
- type: OAuthScopes
  url: scopes/6sense-scopes.yml
  name: OAuth Scopes
- type: LLMsTxt
  url: llms/6sense-llms.txt
  name: llms.txt
- type: Conventions
  url: conventions/6sense-conventions.yml
  name: API Conventions
- type: ErrorCatalog
  url: errors/6sense-problem-types.yml
  name: Error Catalog
- type: Lifecycle
  url: lifecycle/6sense-lifecycle.yml
  name: API Lifecycle
- type: StatusPage
  url: https://status.6sense.com/
  name: 6sense Status
- type: Deprecation
  url: https://api.6sense.com/docs/
  name: Versioning and Deprecation Policy
- type: ChangeLog
  url: changelog/6sense-changelog.yml
  name: Change Log
- type: ChangeLog
  url: https://support.6sense.com/docs/product-release-notes
  name: Product Release Notes
- type: Conformance
  url: conformance/6sense-conformance.yml
  name: Standards Conformance
- type: Compliance
  url: https://trust.6sense.com/
  name: Compliance and Certifications
- type: Webhooks
  url: asyncapi/6sense-ai-email-webhooks.yml
  name: AI Email Webhooks
- type: AgentSkill
  url: skills/_index.yml
  name: Agent Skills
- type: DataModel
  url: data-model/6sense-data-model.yml
  name: Data Model
- type: Components
  url: components/6sense-components.yml
  name: Embeddable Components
- type: Packages
  url: packages/6sense-packages.yml
  name: Packages and SDK Survey
- type: APIReference
  url: https://api.6sense.com/docs/
  name: 6sense API Reference
- type: GettingStarted
  url: https://support.6sense.com/docs/api-credits-api-tokens
  name: Credits and Tokens for APIs
- type: TermsOfService
  url: https://6sense.com/terms-of-use/
  name: Terms of Use
- type: Login
  url: https://login.6sense.com/
  name: 6sense Login
- type: GitHubOrganization
  url: https://github.com/6si
  name: 6si GitHub Organization
solutions:
- name: AI-Powered Account-Based Marketing
  description: Identify in-market accounts, orchestrate omnichannel ABM campaigns, and prioritize the accounts most likely
    to buy using 6AI and the Signalverse intent graph.
- name: Web Deanonymization
  description: Resolve anonymous website visitors to companies and surface buying-stage signals via the Company Identification
    API.
- name: Predictive Lead And Account Scoring
  description: Real-time predictive scoring of leads and accounts against product-specific buying journeys via the Lead Scoring
    APIs.
- name: B2B Data Enrichment
  description: Bulk and on-demand enrichment of accounts and contacts using firmographic, technographic, and contact intelligence
    via the Company and People Enrichment APIs.
- name: Revenue Marketing Automation
  description: AI Email Agents, Audience Builder, Digital Advertising, and Intelligent Workflows that act on Signalverse signals
    across the funnel.
- name: Sales Intelligence
  description: Sales Copilot, Account Prioritization, List Builder, Sales Alerts, Company and People Search, and the Chrome
    Extension surface the right account and contact at the right moment.
integrations:
- name: Salesforce
- name: HubSpot
- name: Marketo
- name: Eloqua
- name: Pardot
- name: Microsoft Dynamics
- name: LinkedIn
- name: Slack
- name: Outreach
- name: Salesloft
- name: Demandbase Tag (web pixel)
- name: Snowflake (Data Pack ingest)
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 28
  pass: local-v1

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