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 4 API contracts indexed on the APIs.io network, including Collect API, Search API, and 2 more. Tagged areas include Agentic Search, B2B Data, Companies, Company Data, and Data as a Service.
The Coresignal catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 4 Spectral governance rulesets.
Coresignal’s developer surface includes authentication, documentation, getting-started guide, signup flow, pricing, engineering blog, API reference, and 63 more developer resources.
What this lets a business do 1
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
What people ask Coresignal 2
The questions people put to an LLM, and the jobs they hand an agent, that Coresignal's APIs answer — each one linked to the operation that does it. Generated by API Evangelist
Kin Score
Standards implemented 6
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.
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.
Open Collections 5
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Coresignal Multi-source Company Collect API
OPEN COLLECTIONCoresignal Multi-source Company API
OPEN COLLECTIONCoresignal Multi-source Employee API
OPEN COLLECTIONCoresignal Multi-source Jobs API
OPEN COLLECTIONCoresignal Multi-source Company Collect Search API
OPEN COLLECTIONArazzo 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.
ARAZZOCoresignal Company Search with Branching Collect
Filter companies and branch between single-record collect and multi-record bulk collect based on how many matched.
ARAZZOCoresignal Company Search and Collect
Search the Multi-source Company API by filters, then collect the full top-matching company record.
ARAZZOCoresignal Company to Employees Enrichment
Find a company, then find and collect a key employee currently working at that company.
ARAZZOCoresignal Company to Job Postings Enrichment
Find a company, then find and collect an active job posting published by that company.
ARAZZOCoresignal Employee Elasticsearch Search and Bulk Collect
Run an Elasticsearch DSL employee query, then bulk collect the full profiles for every matching ID.
ARAZZOCoresignal Employee Search and Collect
Search the Multi-source Employee API by filters, then collect the full top-matching employee profile.
ARAZZOCoresignal Job Elasticsearch Search and Collect
Run an Elasticsearch DSL job query, then collect the full record for the first matching posting.
ARAZZOCoresignal Job Search and Collect
Search the Multi-source Jobs API by filters, then collect the full top-matching job posting.
ARAZZOScroll for all 9
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
Coresignal MCP Server
Remote MCP server at mcp.coresignal.com over streamable HTTP requiring OAuth; 5 tools listed.
MCP SERVERAgent Skills 5
Packaged agent skills for driving this provider's APIs from an AI assistant.
Bulk collect Coresignal records at scale
AGENT SKILLPull Coresignal data from an agent over MCP
AGENT SKILLCoresignal API pricing
Prices published by Coresignal, read 2026-10-28 from coresignal.com/pricing/.
| Plan | Price |
|---|---|
| Free tier | 7 day free trial Includes: 2,000 credits |
| Mini | $49/month Includes: 2,500 credits |
| Starter | $199/month Includes: 12,000 credits |
| Pro | $499/month Includes: 35,000 credits |
| Growth | $1,000/month Includes: 150,000 credits; $0.007/credit |
| Premium | $1,500/month Includes: 1,000,000 credits |
| Scale | $3,000/month Includes: 4,000,000 credits |
| Elite | $5,000/month Includes: 10,000,000 credits |
All 15 plans, limits and sources →
Rate limits
- Data APIs - Free trial: 5 requests per second
- Data APIs - Mini: 5 requests per second
- Data APIs - Starter: 5 requests per second
Billed by: credits · FinOps profile →
Pricing Plans 2
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Coresignal Rate Limits
RATE LIMITSService Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
Coresignal
SLAFinOps 1
Cost, billing, and metering signals for API financial operations.
Coresignal Finops
FINOPSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Coresignal Webhooks
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Coresignal Context
JSON-LDSpectral Rules 4
Spectral governance rulesets for linting and validating these APIs.
Coresignal — jsonschema rules
SPECTRALOpenAPI Overlays 4
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.
Coresignal Collect Api Overlay
DERIVEDCoresignal Collect Api Phrasing Overlay
GENERATEDCoresignal Search Api Overlay
DERIVEDCoresignal Search Api Phrasing Overlay
GENERATEDJSON Schema 6
Standalone JSON Schema definitions for this provider's data models.
Company
JSON SCHEMACompanyFilter
JSON SCHEMAEmployee
JSON SCHEMAEmployeeFilter
JSON SCHEMAJob
JSON SCHEMAJobFilter
JSON SCHEMAJSON Structure 1
JSON Structure definitions describing this provider's data shapes.
Coresignal Structure
JSON STRUCTURESecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 6
Portal, sign-up, and the first successful call
Documentation 8
Reference material describing how the API behaves
Scroll for all 8
Agent Surfaces 6
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 19
Pagination, idempotency, versioning, errors, and events
Scroll for all 19
Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 5
Authentication, authorization, and security posture
Operate 6
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 6
Properties that don't map to a standard resource type
Source (apis.yml)
Coresignal API — frequently asked questions
Does Coresignal have an API?
Yes. APIs.io lists 4 APIs from Coresignal, including Coresignal Agentic Search API, Coresignal Company Enrichment API and Coresignal Collect API, and 1 more.
Is there an OpenAPI specification for the Coresignal API?
Yes. APIs.io indexes 2 OpenAPI specifications for Coresignal, each linked for download from this page.
How do I authenticate with the Coresignal API?
Coresignal documents its authentication (apiKey/oauth2/openIdConnect · 3 schemes). The details are profiled on APIs.io as Coresignal Authentication.
How much does the Coresignal API cost?
Coresignal publishes its prices; its Free tier plan is 7 day free trial as of 2026-10-28. APIs.io lists 15 pricing plans for Coresignal, with each plan's price, limits and inclusions under Pricing on this page.
Does Coresignal have an MCP server?
Yes. APIs.io lists 1 MCP server for Coresignal: Remote MCP server at mcp.coresignal.com over streamable HTTP requiring OAuth; 5 tools listed.
Is the Coresignal API ready for AI agents?
Coresignal has a Kin Score of 70.2 out of 100 (exemplar) and an Agent Readiness score of 53.7 (agent-ready), scored by API Evangelist on 2026-11-06.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.