> ## Documentation Index
> Fetch the complete documentation index at: https://deepline.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Dun & Bradstreet API Guide for GTM Workflows

> Connect your D&B Direct+ consumer key and secret. Includes SDK V2 guidance, input constraints, response fields, and Deepline credit cost.

## Playbook

# Dun & Bradstreet

* D\&B Direct+ requires a customer consumer key and consumer secret. A Hoovers subscription alone does not prove Direct+ API access.
* Company discovery: criteria search accepts domain, D-U-N-S numbers, registration numbers, SIC industries, employee ranges and location filters. Name lookup uses typeahead with a search term and country.
* Company matching accepts D-U-N-S, or country plus a name, website, registration number, telephone, email or address. Matching returns candidates; match-quality information helps select the intended company. Extended match combines identity resolution and licensed Data Blocks in one request.
* Data Blocks and versions must be licensed to the connected D\&B account. Available content depends on that contract.
* Deepline does not bill for D\&B API usage. D\&B can charge the customer account under its own contract.
* Family tree returns corporate subsidiaries/branches with pagination. Beneficial ownership returns the licensed ownership list or structure, subject to country coverage.
* Entitlements reports what the connected key can access; it does not grant or purchase access. Reference categories and codes decode D\&B identifiers used in filters and results.
* Batch, monitoring, the sketch Multi-Process endpoint, contact search, and historical audit are not exposed. Principal/contact information can be requested through licensed Data Blocks.


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