# Coresignal

**Canonical:** https://apis.io/providers/coresignal/  
**Website:** https://coresignal.com  
**APIs profiled:** 4

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.

## Kin Score — 71.4 / 100 (exemplar)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 71.4).

| Facet | Score |
|---|---|
| Discoverability | 92.6 |
| Contract Quality | 71.3 |
| Governance | 55.3 |
| Contract Governance | 55.3 |
| Operational Transparency | 57.9 |
| Developer Ergonomics | 58.9 |
| Commercial Clarity | 92.1 |
| Access Clarity | 92.1 |

## Agent readiness — 42.8 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | yes |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (4)

- **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.

## MCP servers (1)

- **Coresignal MCP Server**

## Agentic access (1)

- **Coresignal Agentic Access** — 11 operations · 8 acting

## Security (2)

- **Coresignal Authentication** — apiKey/oauth2/openIdConnect · 3 schemes
- **Coresignal Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Coresignal Plans Pricing**

## Tags

Agentic Search, B2B Data, Companies, Company Data, Data as a Service, Elasticsearch, Employee Data, Employees, Enrichment, Firmographics, Job Postings, Job, Lead Generation, People Data, Sales Intelligence, Talent Intelligence, Web Data

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/coresignal/). Scores are computed from the provider's own public artifacts under a published rubric.