Coresignal website screenshot

Coresignal

Coresignal is a data-as-a-service company providing access to public web data on companies, employees, and jobs through a suite of REST APIs. The platform aggregates and refines more than 4.5 billion data records covering 75M+ companies (with 500+ data fields), 865M+ employee profiles (300+ fields), and 461M+ job postings (85+ fields). Coresignal offers Multi-source, Clean, and Base data tiers across Company, Employee, and Jobs APIs, plus specialized real-time, employee posts, agentic search, and company enrichment endpoints. Authentication uses a single apikey HTTP header.

Coresignal publishes 2 APIs on the APIs.io network: Collect API and Search API. Tagged areas include Agentic Search, B2B Data, Companies, Company Data, and Data as a Service.

The Coresignal catalog on APIs.io includes 1 JSON-LD context and 4 Spectral governance rulesets.

Coresignal’s developer surface includes authentication, documentation, getting-started guide, signup flow, pricing, engineering blog, and 30 more developer resources.

🌐 Visit website 📡 Source on GitHub
63.6/100 strong ▬ flat Agent 36/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
4 APIs
Agentic SearchB2B DataCompaniesCompany DataData as a ServiceElasticsearchEmployee DataEmployeesEnrichmentFirmographicsJob PostingsJobsLead GenerationPeople DataSales IntelligenceTalent IntelligenceWeb Data

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 63.6/100 · strong
Contract Quality 16.7 / 25
Developer Ergonomics 9.1 / 20
Commercial Clarity 14.2 / 20
Operational Transparency 7.9 / 13
Governance 8.3 / 12
Discoverability 7.4 / 10
Agent readiness — 36/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 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/coresignal: 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 4

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

Coresignal Agentic Search API

The Agentic Search API enables natural language search across Coresignal's company, employee, and jobs datasets, returning relevant records based on conversational queries. Desi...

Coresignal Company Enrichment API

The Company Enrichment API takes a company domain or name and returns a fully-enriched company record. Designed for sales and marketing systems that need to enrich CRM records o...

Coresignal Collect API

Retrieve full company records by ID.

Coresignal Search API

Search and filter company records.

Postman Collections 3

Ready-to-run Postman collections for exercising this provider's APIs.

Coresignal Multi-source Company API

POSTMAN

Coresignal Multi-source Employee API

POSTMAN

Coresignal Multi-source Jobs API

POSTMAN

Open Collections 3

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

Coresignal Multi-source Company API

OPEN COLLECTION

Coresignal Multi-source Employee API

OPEN COLLECTION

Coresignal Multi-source Jobs API

OPEN COLLECTION

Arazzo Workflows 9

Multi-step API workflows described with the Arazzo specification.

Coresignal Company Elasticsearch Search and Bulk Collect

Run an Elasticsearch DSL company query, then bulk collect the full records for every matching ID.

ARAZZO

Coresignal Company Search with Branching Collect

Filter companies and branch between single-record collect and multi-record bulk collect based on how many matched.

ARAZZO

Coresignal Company Search and Collect

Search the Multi-source Company API by filters, then collect the full top-matching company record.

ARAZZO

Coresignal Company to Employees Enrichment

Find a company, then find and collect a key employee currently working at that company.

ARAZZO

Coresignal Company to Job Postings Enrichment

Find a company, then find and collect an active job posting published by that company.

ARAZZO

Coresignal Employee Elasticsearch Search and Bulk Collect

Run an Elasticsearch DSL employee query, then bulk collect the full profiles for every matching ID.

ARAZZO

Coresignal Employee Search and Collect

Search the Multi-source Employee API by filters, then collect the full top-matching employee profile.

ARAZZO

Coresignal Job Elasticsearch Search and Collect

Run an Elasticsearch DSL job query, then collect the full record for the first matching posting.

ARAZZO

Coresignal Job Search and Collect

Search the Multi-source Jobs API by filters, then collect the full top-matching job posting.

ARAZZO

Scroll for all 9

Pricing Plans 1

Published pricing tiers and plan structures.

Coresignal Plans Pricing

5 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Coresignal Rate Limits

7 limits

RATE LIMITS

FinOps 1

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

Coresignal Finops

FINOPS

Semantic Vocabularies 1

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

Coresignal Context

42 classes · 0 properties

JSON-LD

Spectral Rules 4

Spectral governance rulesets for linting and validating these APIs.

Coresignal API Rules

5 rules · 4 warnings 1 info

SPECTRAL

Coresignal API Rules

9 rules · 6 errors 3 warnings

SPECTRAL

Coresignal API Rules

7 rules · 5 errors 1 warnings 1 info

SPECTRAL

Coresignal API Rules

7 rules · 5 errors 2 warnings

SPECTRAL

JSON Schema 6

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

Company

24 properties

JSON SCHEMA

CompanyFilter

10 properties

JSON SCHEMA

Employee

18 properties

JSON SCHEMA

EmployeeFilter

8 properties

JSON SCHEMA

Job

18 properties

JSON SCHEMA

JobFilter

9 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Coresignal Structure

0 properties

JSON STRUCTURE

Security Posture 2

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

Coresignal Authentication

apiKey · 1 scheme

SECURITY

Coresignal Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Coresignal Agentic Access

11 operations · 8 acting

11 operations · 8 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Signup
Signup

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LlmsText
LlmsText

Design & Contract 12

Pagination, idempotency, versioning, errors, and events

Arazzo
Arazzo
 Arazzo
Arazzo
 Arazzo
Arazzo
 Arazzo
Arazzo
 Arazzo
Arazzo
 Arazzo
Arazzo
 Arazzo
Arazzo
 Arazzo
Arazzo
 Arazzo
Arazzo
 Webhooks
Webhooks
 Vocabulary
Vocabulary
 JSONLD
JSONLD

Scroll for all 12

Build 3

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace
PostmanWorkspace
 GitHubOrganization
GitHubOrganization
 ResponseCodes
ResponseCodes

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 Authorization
Authorization

Operate 2

Status, limits, changes, and where to get help

RateLimits
RateLimits
 StatusPage
StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 4

The organization behind the API

Website
Website
 Blog
Blog
 LinkedIn
LinkedIn
 Twitter
Twitter

Other 3

Properties that don't map to a standard resource type

APIsOverview
APIsOverview
 Credits
Credits
 Dashboard
Dashboard

Source (apis.yml)

apis.yml Raw ↑ 
aid: coresignal
name: Coresignal
kind: company
description: Coresignal is a data-as-a-service company providing access to public web data on companies, employees, and jobs
  through a suite of REST APIs. The platform aggregates and refines more than 4.5 billion data records covering 75M+ companies
  (with 500+ data fields), 865M+ employee profiles (300+ fields), and 461M+ job postings (85+ fields). Coresignal offers Multi-source,
  Clean, and Base data tiers across Company, Employee, and Jobs APIs, plus specialized real-time, employee posts, agentic
  search, and company enrichment endpoints. Authentication uses a single apikey HTTP header.
url: https://raw.githubusercontent.com/api-evangelist/coresignal/refs/heads/main/apis.yml
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/coresignal.png
type: Index
access: 3rd-Party
position: Consumer
tags:
- Agentic Search
- B2B Data
- Companies
- Company Data
- Data as a Service
- Elasticsearch
- Employee Data
- Employees
- Enrichment
- Firmographics
- Job Postings
- Jobs
- Lead Generation
- People Data
- Sales Intelligence
- Talent Intelligence
- Web Data
created: '2025-02-12'
modified: '2026-05-19'
specificationVersion: '0.20'
apis:
- aid: coresignal:agentic-search-api
  name: Coresignal Agentic Search API
  description: The Agentic Search API enables natural language search across Coresignal's company, employee, and jobs datasets,
    returning relevant records based on conversational queries. Designed for AI agents and automated workflows that need quick
    B2B data lookups without crafting Elasticsearch queries.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.coresignal.com/agentic-search-api/
  baseURL: https://api.coresignal.com/cdapi/v2/agentic_search
  tags:
  - Agentic Search
  - AI Agents
  - Natural Language
  properties:
  - type: Documentation
    url: https://docs.coresignal.com/agentic-search-api/
- aid: coresignal:company-enrichment-api
  name: Coresignal Company Enrichment API
  description: The Company Enrichment API takes a company domain or name and returns a fully-enriched company record. Designed
    for sales and marketing systems that need to enrich CRM records or web form submissions in real time.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.coresignal.com/company-enrichment-api/
  baseURL: https://api.coresignal.com/cdapi/v2/company_enrichment
  tags:
  - Companies
  - Enrichment
  - CRM
  properties:
  - type: Documentation
    url: https://docs.coresignal.com/company-enrichment-api/
- aid: coresignal:coresignal-collect-api
  name: Coresignal Collect API
  description: Retrieve full company records by ID.
  humanURL: https://docs.coresignal.com/multi-source-company-api/
  baseURL: https://api.coresignal.com/cdapi/v2/multi_source_company
  tags:
  - Collect
  properties:
  - type: OpenAPI
    url: openapi/coresignal-collect-api-openapi.yml
  - type: Documentation
    url: https://docs.coresignal.com/multi-source-company-api/
  - type: DataDictionary
    url: https://docs.coresignal.com/multi-source-company-api/data-dictionary
  - type: Sample
    url: https://docs.coresignal.com/multi-source-company-api/sample
  - type: SearchFilters
    url: https://docs.coresignal.com/multi-source-company-api/search-filters
  - type: ElasticsearchDSL
    url: https://docs.coresignal.com/multi-source-company-api/search-with-es-dsl
  - type: Collect
    url: https://docs.coresignal.com/multi-source-company-api/collect
  - type: BulkCollect
    url: https://docs.coresignal.com/multi-source-company-api/bulk-collect
  - type: Webhooks
    url: https://docs.coresignal.com/multi-source-company-api/subscriptions
  - type: Rules
    url: rules/coresignal-multi-source-company-api-rules.yml
  - type: Capabilities
    url: capabilities/coresignal-company-data-collection-capabilities.yml
  - type: Documentation
    url: https://docs.coresignal.com/multi-source-employee-api/
  - type: DataDictionary
    url: https://docs.coresignal.com/multi-source-employee-api/data-dictionary
  - type: Sample
    url: https://docs.coresignal.com/multi-source-employee-api/sample
  - type: SearchFilters
    url: https://docs.coresignal.com/multi-source-employee-api/search-filters
  - type: ElasticsearchDSL
    url: https://docs.coresignal.com/multi-source-employee-api/search-with-es-dsl
  - type: Collect
    url: https://docs.coresignal.com/multi-source-employee-api/collect
  - type: BulkCollect
    url: https://docs.coresignal.com/multi-source-employee-api/bulk-collect
  - type: Webhooks
    url: https://docs.coresignal.com/multi-source-employee-api/subscriptions
  - type: Rules
    url: rules/coresignal-multi-source-employee-api-rules.yml
  - type: Capabilities
    url: capabilities/coresignal-employee-data-collection-capabilities.yml
  - type: Documentation
    url: https://docs.coresignal.com/multi-source-jobs-api/
  - type: DataDictionary
    url: https://docs.coresignal.com/multi-source-jobs-api/data-dictionary
  - type: Sample
    url: https://docs.coresignal.com/multi-source-jobs-api/sample
  - type: SearchFilters
    url: https://docs.coresignal.com/multi-source-jobs-api/search-filters
  - type: ElasticsearchDSL
    url: https://docs.coresignal.com/multi-source-jobs-api/search-with-es-dsl
  - type: Collect
    url: https://docs.coresignal.com/multi-source-jobs-api/collect
  - type: Rules
    url: rules/coresignal-multi-source-jobs-api-rules.yml
  - type: Capabilities
    url: capabilities/coresignal-jobs-data-collection-capabilities.yml
- aid: coresignal:coresignal-search-api
  name: Coresignal Search API
  description: Search and filter company records.
  humanURL: https://docs.coresignal.com/multi-source-company-api/
  baseURL: https://api.coresignal.com/cdapi/v2/multi_source_company
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/coresignal-search-api-openapi.yml
  - type: Documentation
    url: https://docs.coresignal.com/multi-source-company-api/
  - type: DataDictionary
    url: https://docs.coresignal.com/multi-source-company-api/data-dictionary
  - type: Sample
    url: https://docs.coresignal.com/multi-source-company-api/sample
  - type: SearchFilters
    url: https://docs.coresignal.com/multi-source-company-api/search-filters
  - type: ElasticsearchDSL
    url: https://docs.coresignal.com/multi-source-company-api/search-with-es-dsl
  - type: Collect
    url: https://docs.coresignal.com/multi-source-company-api/collect
  - type: BulkCollect
    url: https://docs.coresignal.com/multi-source-company-api/bulk-collect
  - type: Webhooks
    url: https://docs.coresignal.com/multi-source-company-api/subscriptions
  - type: Rules
    url: rules/coresignal-multi-source-company-api-rules.yml
  - type: Capabilities
    url: capabilities/coresignal-company-data-collection-capabilities.yml
  - type: Documentation
    url: https://docs.coresignal.com/multi-source-employee-api/
  - type: DataDictionary
    url: https://docs.coresignal.com/multi-source-employee-api/data-dictionary
  - type: Sample
    url: https://docs.coresignal.com/multi-source-employee-api/sample
  - type: SearchFilters
    url: https://docs.coresignal.com/multi-source-employee-api/search-filters
  - type: ElasticsearchDSL
    url: https://docs.coresignal.com/multi-source-employee-api/search-with-es-dsl
  - type: Collect
    url: https://docs.coresignal.com/multi-source-employee-api/collect
  - type: BulkCollect
    url: https://docs.coresignal.com/multi-source-employee-api/bulk-collect
  - type: Webhooks
    url: https://docs.coresignal.com/multi-source-employee-api/subscriptions
  - type: Rules
    url: rules/coresignal-multi-source-employee-api-rules.yml
  - type: Capabilities
    url: capabilities/coresignal-employee-data-collection-capabilities.yml
  - type: Documentation
    url: https://docs.coresignal.com/multi-source-jobs-api/
  - type: DataDictionary
    url: https://docs.coresignal.com/multi-source-jobs-api/data-dictionary
  - type: Sample
    url: https://docs.coresignal.com/multi-source-jobs-api/sample
  - type: SearchFilters
    url: https://docs.coresignal.com/multi-source-jobs-api/search-filters
  - type: ElasticsearchDSL
    url: https://docs.coresignal.com/multi-source-jobs-api/search-with-es-dsl
  - type: Collect
    url: https://docs.coresignal.com/multi-source-jobs-api/collect
  - type: Rules
    url: rules/coresignal-multi-source-jobs-api-rules.yml
  - type: Capabilities
    url: capabilities/coresignal-jobs-data-collection-capabilities.yml
common:
- type: AgenticAccess
  url: agentic-access/coresignal-agentic-access.yml
- type: DomainSecurity
  url: security/coresignal-domain-security.yml
- type: Authentication
  url: authentication/coresignal-authentication.yml
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/coresignal/overview
- type: Arazzo
  url: arazzo/coresignal-company-esdsl-bulk-collect-workflow.yml
  name: Coresignal Company Elasticsearch Search and Bulk Collect
- type: Arazzo
  url: arazzo/coresignal-company-search-branch-collect-workflow.yml
  name: Coresignal Company Search with Branching Collect
- type: Arazzo
  url: arazzo/coresignal-company-search-collect-workflow.yml
  name: Coresignal Company Search and Collect
- type: Arazzo
  url: arazzo/coresignal-company-to-employees-workflow.yml
  name: Coresignal Company to Employees Enrichment
- type: Arazzo
  url: arazzo/coresignal-company-to-jobs-workflow.yml
  name: Coresignal Company to Job Postings Enrichment
- type: Arazzo
  url: arazzo/coresignal-employee-esdsl-bulk-collect-workflow.yml
  name: Coresignal Employee Elasticsearch Search and Bulk Collect
- type: Arazzo
  url: arazzo/coresignal-employee-search-collect-workflow.yml
  name: Coresignal Employee Search and Collect
- type: Arazzo
  url: arazzo/coresignal-job-esdsl-search-collect-workflow.yml
  name: Coresignal Job Elasticsearch Search and Collect
- type: Arazzo
  url: arazzo/coresignal-job-search-collect-workflow.yml
  name: Coresignal Job Search and Collect
- type: GitHubOrganization
  url: https://github.com/Coresignal-com
- type: Website
  url: https://coresignal.com
- type: DeveloperPortal
  url: https://docs.coresignal.com/
- type: Documentation
  url: https://docs.coresignal.com/
- type: APIsOverview
  url: https://docs.coresignal.com/api-introduction/apis-overview
- type: Authorization
  url: https://docs.coresignal.com/api-introduction/authorization
- type: GettingStarted
  url: https://docs.coresignal.com/api-introduction/getting-started
- type: RateLimits
  url: https://docs.coresignal.com/api-introduction/rate-limits
- type: ResponseCodes
  url: https://docs.coresignal.com/api-introduction/response-codes
- type: Credits
  url: https://docs.coresignal.com/api-introduction/credits
- type: Webhooks
  url: https://docs.coresignal.com/api-introduction/webhooks
- type: Dashboard
  url: https://dashboard.coresignal.com/sign-in
- type: Signup
  url: https://dashboard.coresignal.com/sign-up
- type: Pricing
  url: https://coresignal.com/pricing/
- type: Solutions
  url: https://coresignal.com/solutions/
- type: UseCases
  url: https://coresignal.com/use-cases/
- type: Blog
  url: https://coresignal.com/blog/
- type: Vocabulary
  url: vocabulary/coresignal-vocabulary.yml
- type: JSONLD
  url: json-ld/coresignal-context.jsonld
- type: PrivacyPolicy
  url: https://coresignal.com/privacy-policy/
- type: TermsOfService
  url: https://coresignal.com/terms-and-conditions/
- type: StatusPage
  url: https://status.coresignal.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/coresignal
- type: Twitter
  url: https://twitter.com/coresignal
- type: LlmsText
  url: https://docs.coresignal.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com