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J·BJon BishopIndependent growth marketer

A source-aware research directory

Marketing data sources for SaaS and developer founders

Find public and first-party datasets for market research, content and demand discovery. Compare coverage, granularity, access requirements and limitations.

80 sources38 categories

8 sources match your filters

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Email and CRMAccount or key

Mailchimp Marketing API

Export and analyze consented audience, campaign and engagement data from a Mailchimp account.

Coverage: Audience data available to the authorized Mailchimp account · Audiences, contacts, campaigns, automations and reports

Marketing platform APIAccount plan may be required; verify current plan and API terms.
Reviewed 2026-10-09Coverage and caveats →
Email and CRMAccount or key

HubSpot CRM API

Bring a company's own contacts, companies, deals and activities into internal reporting or data workflows.

Coverage: CRM records in the authorized HubSpot account · CRM objects, properties, associations and engagement records

CRM and marketing platform APIPlan and API limits can vary by product and account; check current HubSpot terms.
Reviewed 2026-10-09Coverage and caveats →
Email and CRMAccount or key

Klaviyo APIs

Analyze first-party customer events and marketing engagement held in a Klaviyo account.

Coverage: Customer and event data in the authorized Klaviyo account · Profiles, events, lists, segments, campaigns and metrics

Marketing automation APIAccess and features can depend on the account plan; verify current pricing and terms.
Reviewed 2026-10-09Coverage and caveats →
Email and CRMAccount or key

Customer.io APIs

Programmatic access to account messaging workflows and customer data

Coverage: Data available to the authorized account, project or eligible market · Profiles, events, campaigns and delivery activity in an authorized workspace

Marketing and measurement APIProvider account or plan may be required; check current pricing and API terms.
Reviewed 2026-10-09Coverage and caveats →
Email and CRMAccount or key

Salesforce Marketing Cloud APIs

Integrate Marketing Cloud account activity with custom analytics and workflows

Coverage: Data available to the authorized account, project or eligible market · Campaign, subscriber and marketing automation data available to authorized accounts

Marketing and measurement APIProvider account or plan may be required; check current pricing and API terms.
Reviewed 2026-10-09Coverage and caveats →
Email and CRMAccount or key

Brevo API

Automate and analyze an authorized Brevo account's marketing activity

Coverage: Data available to the authorized account, project or eligible market · Contacts, campaigns, transactional messages and supported reports

Marketing and measurement APIProvider account or plan may be required; check current pricing and API terms.
Reviewed 2026-10-09Coverage and caveats →
Email and CRMAccount or key

MailerLite REST API

Connect a MailerLite account to reporting, automation or integration workflows

Coverage: Data available to the authorized account, project or eligible market · Subscribers, groups, campaigns and account data available through supported endpoints

Marketing and measurement APIProvider account or plan may be required; check current pricing and API terms.
Reviewed 2026-10-09Coverage and caveats →
Email and CRMAccount or key

Kit (ConvertKit) API

Integrate creator email lists, forms and broadcasts with first-party reporting

Coverage: Data available to the authorized account, project or eligible market · Subscribers, forms, tags and email activity supported by the API

Marketing and measurement APIProvider account or plan may be required; check current pricing and API terms.
Reviewed 2026-10-09Coverage and caveats →

Access and coverage notes were checked 2026-10-09 against provider pages. Features, terms, APIs and release schedules can change; follow the linked source documentation before relying on a workflow.

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