Score breakdown
Popularity is tracked separately. Support, ads, sponsorships, and tips never affect these signals.
Why it matters
Useful for developers building agent workflows that need a supported way to search mailboxes, send email, or expose email tools to an MCP-capable client without hand-rolling wrappers around a vendor API.
Who should use it
Who should skip it
Skip Sendmux/sendmux-sdk unless the captured evidence suggests it solves a problem you are actively working on.
About this signal
Sendmux/sendmux-sdk is tracked by RepoRadar as a email api sdk in the Developer Infra section. It was first seen on 2026-06-29 and last updated on 2026-06-29. The current verdict is 'try now' with a Silver tier and moderate setup difficulty. Sendmux/sendmux-sdk leads on workflow potential (9.3) and open-source/build quality (8.4); its lowest signal is maturity (5.7), so factor that in before investing setup time. This page summarizes the evidence RepoRadar has captured from captured source metadata. The score, tier, risk label, and verdict on this page are never influenced by sponsorship, ads, or tips — they reflect only the usefulness, popularity, novelty, momentum, maturity, and evidence signals described in the RepoRadar methodology.
How this item is evaluated
RepoRadar assigned Sendmux/sendmux-sdk a composite score of 7.8 out of 10, placing it in the Silver tier. This score combines weighted sub-signals: usefulness (35%), novelty (18%), momentum (14%), maturity (10%), open-source/build quality (7%), evidence quality (6%), workflow potential (6%), and setup ease (4%). Popularity is tracked separately at 1.0 and never affects the composite score or tier. The risk label of 'conditional' reflects inherent user-impacting hazards, not generic novelty. Items with no risk flag may still require normal code review before production use.
Putting this into practice? Read How to evaluate an AI tool before you adopt it for the checklist behind this score.
Risk explanation
Mailbox search and email sending touch live account data and outbound communication, so start with a sandbox mailbox and the minimum token scopes instead of production inboxes.