DataMerge

Enrich companies and find B2B contacts using the DataMerge MCP server (mcp.datamerge.ai). Use when the user needs company firmographic data, validated contact emails or phone numbers, lookalike company discovery, corporate hierarchy data, or wants to manage lists of target accounts. Access to 375M+ companies globally. Requires a DataMerge API key (free credits at app.datamerge.ai).

Connect to the DataMerge MCP server at https://mcp.datamerge.ai.

Auth

Call configure_datamerge with the user's API key before using any other tool. New users get 20 free credits at https://app.datamerge.ai.

Credits

• 1 credit: company enrichment, validated email
• 4 credits: mobile phone number
• record_id retrieval (get_company, get_contact): free — always use this to re-fetch

Core workflows

Enrich a company

Use start_company_enrichment_and_wait for single domains — it polls automatically and returns when complete. Use start_company_enrichment + get_company_enrichment_result for batch jobs.

Find contacts

1. contact_search with target domains and enrich_fields: ["contact.emails"]
2. Poll get_contact_search_status until completed
3. get_contact with each record_id to retrieve details (free)

Use job_titles to filter by seniority. Start with emails only — add "contact.phones" only if mobile numbers are explicitly needed (4× the cost).

Find lookalike companies

1. start_lookalike with companiesFilters.lookalikeDomains (seed domains)
2. Poll get_lookalike_status until completed
3. get_company with each record_id (free)

Company hierarchy

Enrich the company first to get a datamerge_id, then call get_company_hierarchy. Set include_names: true to get entity names (costs 1 credit).

Lists

• create_list to save a group of companies or contacts
• Pass list slug to enrichment/search jobs to add results automatically
• get_list_items to retrieve saved records
• Use skip_if_exists: true to avoid re-enriching duplicates

Tips

• Check get_credits_balance before running large batch jobs
• global_ultimate: true returns the top-level parent company instead of the subsidiary
• strict_match: true requires an exact domain match — use when precision matters over coverage