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Agent-ready email api documentation

3 sites in this index, 2 of them transactional. Every one probed live, with the date it was checked.

✓MailCare Documentation docs.mailcare.io
MailCare Documentation provides instructions on API authentication, token generation, base URL usage, and test
✓useSend docs.usesend.com
useSend provides open source email sending API documentation including domain setup, API keys, SDKs, and SMTP
✓MailChannels docs.mailchannels.com
Documentation for MailChannels Email API, inbound and outbound filtering, setup, authentication, and troublesh