# DataMerge > B2B Company and Contact Data Enrichment Platform DataMerge enriches company and contact data for B2B sales and marketing. Given a company domain, it returns the actual **legal entity** registered to that domain — including official legal name, registered address, jurisdiction, and position in the **corporate hierarchy**. For multinationals, you can retrieve any entity in the corporate tree: the country-level subsidiary, the regional parent, or the global ultimate holding company. DataMerge also finds and enriches contacts at companies (emails, phones, LinkedIn). Covers 375M+ companies globally. **API base URL:** `https://api.datamerge.ai` **Free trial:** 20 credits on signup — no credit card required. Sign up at https://app.datamerge.ai ## Documentation - [Documentation](https://www.datamerge.ai/docs/llms.txt): Complete DataMerge documentation — all endpoints, data models, workflows, and examples inlined in a single file - [Quick Start](https://www.datamerge.ai/docs/quickstart.md): Get your first enrichment running in 5 minutes - [Enrich Company](https://www.datamerge.ai/docs/enrich-company.md): Domains → full firmographic profiles - [Find Contacts](https://www.datamerge.ai/docs/find-contacts.md): Contact search with job title and location filters - [Find Lookalikes](https://www.datamerge.ai/docs/find-lookalikes.md): Discover similar companies using seed domains ## API Reference - [OpenAPI Schema (YAML)](https://api.datamerge.ai/schema): Full OpenAPI 3.0 spec — also at https://www.datamerge.ai/openapi.yaml - [Interactive Docs (Redoc)](https://api.datamerge.ai/docs) - [Swagger UI](https://api.datamerge.ai/swagger) ## MCP Server DataMerge has a native MCP (Model Context Protocol) server — connect it to Claude Desktop, Cursor, Windsurf, or any MCP-compatible client: - **Remote server:** `https://mcp.datamerge.ai` (streamable HTTP) - **npm package:** `npm install @datamerge/mcp` - **GitHub:** https://github.com/poolside-ventures/datamerge-mcp - **Setup guide:** https://www.datamerge.ai/docs/mcp.md ## Agent Resources - [AI Agents](https://www.datamerge.ai/agents): Overview of all AI agent integration options — MCP, REST API, SKILL.md - [DataMerge for AI Agents](https://www.datamerge.ai/use-cases/ai-agents): How LLM applications and autonomous agents use DataMerge — prompt examples, MCP usage, API patterns - [MCP Setup Guide](https://www.datamerge.ai/docs/mcp.md): Step-by-step MCP configuration for Claude Desktop, Cursor, and Windsurf - [SKILL.md](https://www.datamerge.ai/SKILL.md): Quick-start guide and best practices for AI coding agents ## Features - [Legal Name Resolution](https://www.datamerge.ai/features/legal-name-resolution): How DataMerge resolves both the display name (for outreach) and the legal entity name (for contracts, billing, and compliance) from any domain - [Company Hierarchy Data](https://www.datamerge.ai/features/company-hierarchy): Intelligent corporate hierarchy navigation — find subsidiaries, parent companies, and the global ultimate owner without noise from unrelated business units ## Use Cases - [B2B Sales Teams](https://www.datamerge.ai/use-cases/sales): Prospect enrichment, CRM data, warm introductions via hierarchy data, display vs legal name for outreach - [Finance and Credit](https://www.datamerge.ai/use-cases/finance): Automated credit checks, KYB, fraud prevention, billing accuracy using verified legal names - [Compliance and KYB](https://www.datamerge.ai/use-cases/compliance): Know Your Business verification, sanctions screening, conflict checks, vendor onboarding - [Revenue Operations](https://www.datamerge.ai/use-cases/revops): CRM hygiene, territory design using hierarchy data, lead routing, deduplication - [Procurement](https://www.datamerge.ai/use-cases/procurement): Vendor spend consolidation, supplier KYB, negotiation leverage via corporate hierarchy ## Guides - [B2B Data Enrichment Guide](https://www.datamerge.ai/guides/b2b-data-enrichment-guide): What data enrichment is, why it matters, how enrichment waterfalls work - [Company Enrichment FAQ](https://www.datamerge.ai/guides/company-enrichment-faq): 15 common questions about company data enrichment answered - [How to Find a Company's Legal Name from Its Website](https://www.datamerge.ai/guides/find-legal-name-from-website): Methods for resolving legal entity name from a domain — manual approaches and automated API lookup - [Company Hierarchy Data Explained](https://www.datamerge.ai/guides/company-hierarchy-data): What corporate hierarchy data is, why sales and compliance teams need it, how to use it - [Company Data Enrichment](https://www.datamerge.ai/guides/company-data-enrichment): Practical guide to enriching company records at scale - [Contact Data Enrichment](https://www.datamerge.ai/guides/contact-data-enrichment): Finding validated emails and mobile numbers for B2B contacts - [AI Agent Prompts for DataMerge](https://www.datamerge.ai/guides/ai-agent-prompts): 20 ready-to-use prompts for common B2B data tasks via MCP - [How to Find a Company's Parent Company](https://www.datamerge.ai/guides/find-parent-company): Step-by-step guide to navigating corporate ownership structure - [How to Find Subsidiaries of a Company](https://www.datamerge.ai/guides/find-subsidiaries): How to identify and map subsidiaries for cross-sell, compliance, and spend consolidation - [How to Identify a Company from Its Domain](https://www.datamerge.ai/guides/identify-company-from-domain): Resolving brand name, legal name, and corporate structure from a website URL - [Corporate Hierarchy Explained](https://www.datamerge.ai/guides/corporate-hierarchy-explained): What corporate hierarchies are, how they're structured, and why they matter for B2B ## Key Facts - **Auth:** `Authorization: Token YOUR_API_KEY` - **Processing:** All enrichment is asynchronous — POST to start, GET to poll - **Legal entity data:** Returns the registered legal entity — `legal_name`, `country_code`, registered address, national ID - **Company hierarchy:** Full corporate tree via `/v1/company/hierarchy` — parent companies, subsidiaries, global ultimate ownership - **Entity targeting:** `country_code` param returns a specific country's subsidiary · `global_ultimate: true` returns the top holding company - **Credits:** 1 credit = 1 company record or 1 contact email · 4 credits = 1 mobile number · 0 credits for failed lookups · 0 credits for fetching by record_id - **Plans:** From $15/month · Pay-as-you-go available · Pricing: https://www.datamerge.ai/pricing - **Web app:** https://app.datamerge.ai - **Support:** https://www.datamerge.ai/contact