SendFast
Let your coding agent draft, preview, screenshot, and send marketing email from a domain you already verified—without leaving the thread.
Overview
SendFast is a Launch-phase MCP server that lets your agent draft, edit, screenshot, and send marketing email from your verified domain via SendFast’s HTTP API.
What is this MCP server?
- Streamable HTTP MCP remote at sendfast.ai/api/mcp (schema 2025-12-11)
- Agent workflows: draft, edit, screenshot preview, then send from your verified domain
- Authenticated with required X-API-Key header (sf_live_… from app settings)
- Marketing-email focused positioning—agent-native, not a generic SMTP shim
- GitHub source novica-ai/sendfast; website sendfast.ai
- MCP server schema version 1.0.0 (2025-12-11 server schema)
- One streamable-http remote: https://sendfast.ai/api/mcp
- One required secret header: X-API-Key (sf_live_…)
What problem does it solve?
You want launch and lifecycle email done inside the agent session, but most ESPs force you out to dashboards and make preview-and-send loops slow for one-person teams.
Who is it for?
Indie SaaS and newsletter builders who already use SendFast domain verification and want Claude Code or Cursor to operate campaigns conversationally.
Skip if: Teams that need full marketing automation builders, multi-brand governance, or cold outreach at scale without using SendFast’s product surface.
What do I get? / Deliverables
After you register the remote MCP URL and sf_live_ API key, your agent can run SendFast-backed draft–preview–send workflows on your verified domain without leaving the coding thread.
- Agent-driven email drafts and edits ready to send
- Screenshot previews of message rendering before send
- Sent campaigns from your verified domain via SendFast
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Journey fit
Launch is where solo builders first reach real inboxes; SendFast sits on the distribution shelf as an agent hook for outbound and lifecycle email, not in-repo copywriting alone. Distribution covers channels that put messages in front of users; verified-domain send and campaign edits map directly to email as a launch and re-engagement channel.
How it compares
Hosted email-send MCP integration, not an in-repo copywriting skill or a self-hosted SMTP script.
Common Questions / FAQ
Who is SendFast for?
Solo builders and small teams who ship with AI agents and want marketing email—drafting, visual check, and send—on a domain verified in SendFast.
When should I use SendFast?
Use it during launch announcements, waitlist drips, changelog emails, and light lifecycle nudges once your domain and API key are configured in SendFast.
How do I add SendFast to my agent?
Add the streamable-http remote https://sendfast.ai/api/mcp to your MCP client and set the secret header X-API-Key to your sf_live_ key from sendfast.ai/app/settings.