Business & CRM APIs

15 Business & CRM APIs with verified auth, pricing and rate limits. 7 offer a free tier; 3 document an MCP server. Every field carries the source URL that states it.

API	Category	Auth	Pricing	MCP	Free	Confidence
Invovate invovate.com	Business & CRM	bearer_token	freemium	—	●	high
Tomba tomba.io	Business & CRM	api_key	freemium	●	●	high
Mailjet mailjet.com	Business & CRM	—	freemium	●	●	medium
markerapi markerapi.com	Business & CRM	other	freemium	—	●	medium
Meirra meirra.com	Business & CRM	api_key	usage_based	—	●	medium
Instatus instatus.com	Business & CRM	—	freemium	—	●	low
Akeneo PIM REST API akeneo.com	Business & CRM	—	contact_sales	●	—	low
OrgHunter orghunter.com	Business & CRM	api_key	—	—	●	low
PI Web API osisoft.com	Business & CRM	—	contact_sales	—	—	low
Clearbit Logo API clearbit.com	Business & CRM	—	—	—	—	low
Data2CRM.API data2crm.com	Business & CRM	—	—	—	—	low
SwiftKanban digite.com	Business & CRM	—	—	—	—	low
Loket.nl API loket.nl	Business & CRM	—	—	—	—	low
Mist API mist.com	Business & CRM	—	—	—	—	low
Redash redash.io	Business & CRM	—	—	—	—	low