Reloop

Open-source email API and infrastructure for developers: transactional email, SMTP relay, campaigns, webhooks, and agent inboxes.

Visit reloop.sh →Docs Pricing

Reloop is an open-source (Apache 2.0) email service and infrastructure platform. It provides a REST API and SMTP relay for transactional email, marketing campaigns with segments and scheduling, inbound email webhooks, agent inboxes for AI agents, deliverability tooling (SPF/DKIM/DMARC, IP warmup, blocklist tracking), and an MCP server plus CLI for AI-agent workflows. Available as hosted Reloop Cloud or self-hosted.

Category: Email & messaging
Pricing: freemium · from $0
Free tier: yes
API: yes
MCP server: yes
SDK: yes
Open source: yes

#email #transactional-email #smtp #email-api #marketing-email #webhooks #deliverability #self-hosted

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Listed 2026-10-22 · last verified 2026-10-22 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.95

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API

curl https://toolgrep.com/api/products/reloop