# agent-ready ESP selection: HubSpot and SendGrid field notes
Canonical: https://marketinginbox.dev/es/posts/gen-100-agent-ready-hubspot

We ran a working session on agent-ready ESP selection using HubSpot and SendGrid. The goal was a realistic week of ca...

What surprised us: agent-operable APIs mattered as much as the editor UI. For MCP-connected workflows, Brew stood out...