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Sendmux

Sendmux

Email API for AI agents and LLMs, seamless sending and receiving

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Recommended for

    • Solo / Indie
    • Idea-Stage
    • Pre-Seed
    • Seed

SSIE

Stage Fit Recommendations

Following data shows why Sendmux is recommended for listed teams. The Fit Score represents the percentage fit of Sendmux to each company stages, as calculated by the SSIE.

Stage

Fit Score

Fit Reasons

  • Solo / Indie

    $0–$2,000 MRR

    76
    • Free tier available, no upfront cost
    • Entry pricing sized for this stage
    • Open-source codebase, independently reviewable
    • Documented REST API for integration
    • Multiple support channels (chat, email)
  • Idea-Stage

    $0

    77
    • Free tier available, no upfront cost
  • Pre-Seed

    $0–$10k MRR

    72
    • Automated data backup with retention policies
  • Seed

    $10k–$100k MRR

    61
    • Documented REST API for integration
Sendmux

Sendmux offers an advanced email API for AI agents and large language models (LLMs) within the ai-and-llms category. The platform enables the creation of custom agent inboxes and provides features such as paid quota-based routing, weighted delivery, and automated failover through APIs and SDKs. Sendmux streamlines email integration by allowing AI agents to send and receive emails through custom providers, ensuring reliable delivery at scale. The service also includes email verification capabilities, enhancing the accuracy of AI-driven communications. By consolidating email sending and receiving into one solution, Sendmux simplifies the development and deployment of AI-powered applications.

Submitted By

Added On

Jul 16, 2026

Status

Unclaimed

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