API

Validate, enrich, and deduplicate customer data via API—so every write is clean and every report is reliable.

The Delpha Data Quality API brings clean, trusted customer data to your applications. It detects and fixes incomplete, inconsistent, duplicate, or invalid records, enriches missing fields, and enforces your data standards in real time or batch. Responses include actionable recommendations with confidence scores so you can automate safely and keep downstream systems accurate.

Find below the Delpha API Catalog. When an API is available for end users, just click on the API Name to access the API documentation

Company / Account APIs

API Name	Objective	Description
Company Address Finder	Recommend	Retrieves a company’s registered or operational addresses.
Company Phone Finder	Recommend	Finds company phone numbers.
Company Website Finder	Recommend	Finds official company websites.
Company Linkedin Finder	Recommend	Finds a company’s LinkedIn profile.
Company Legal ID Finder	Recommend	Finds a company’s legal identifier (e.g., SIREN, KVK, EIN).
Company Ultimate Parent Finder	Recommend	Identifies the ultimate parent of a company.
Company Address Validator	Validate	Validates and normalizes company addresses.
Company Phone Validator	Validate	Validates company phone numbers.
Company Website Validator	Validate	Validates correctness and activity of company websites.
Company Linkedin Validator	Validate	Validates a company’s LinkedIn profile.
Company Legal ID Validator	Validate	Validates the correctness of a company’s legal ID.
Company Ultimate Parent Validator	Validate	Validates an identified ultimate parent relationship.
Company Data Enrichment	Enrich	Enriches company profiles with external and internal data sources.
Company LinkedIn Import	Enrich	Import Accounts from a LinkedIn Search or a Sales Navigator Search or a Sales Navigator List
Company Data Quality Score	Score	Returns a quality score for company data across multiple dimensions.

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Contact APIs

API Name	Objective	Description
Contact Email Finder	Recommend	Finds contact email addresses.
Contact Linkedin Finder	Recommend	Finds a contact’s LinkedIn profile.
Contact Job History Finder	Recommend	Retrieves job history of a contact.
Contact Address Validator	Validate	Validates and normalizes contact addresses.
Contact Phone Validator	Validate	Validates contact phone numbers.
Contact Email Validator	Validate	Validates the correctness of contact emails.
Contact Linkedin Validator	Validate	Validates a contact’s LinkedIn profile.
Contact Job Title Validator	Validate	Validates a contact’s job title.
Contact Name Validator	Validate	Validates and normalizes contact names.
Contact Current Account Validator	Validate	Validates the link between a contact and their current account.
Contact Data Enrichment	Enrich	Enriches contact profiles with additional attributes.
Contact Email Insights	Enrich	Extracts insights from contact emails (e.g., OOO, job changes).
Contact LinkedIn Import	Enrich	Import Contacts from a LinkedIn Search or a Sales Navigator Search or a Sales Navigator List
Contact Data Quality Score	Score	Returns a quality score for contact data across multiple dimensions.

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Duplicate Management APIs

API Name	Objective	Description
Duplicate Finder	Recommend	Detects potential duplicate records.
Duplicate Score	Score	Assigns a score to measure record duplication probability.
Duplicate Merge	Merge	Merges dup