Critical OSI-approved OSS Communication Email Clients & Webmail

Nylas Mail

:love_letter: An extensible desktop mail app built on the modern web. Forks welcome!

Website GitHub X Changelog

Data confidence100/100

Source coverage100/100

Publish confidence100/100

Pricing checkedNo current pricing evidence

Score Breakdown

Public signal read

How to read this

These bars are a reader-facing view of the ToolVitals evidence model. They summarize maintenance, shipping, confidence, and decay signals. Hosted pricing evidence is shown separately.

Activity: Recent commits, releases, changelog, package, and product-motion signals.
Reliability: Maintenance posture from recency, release evidence, availability, and repo signals.
Adoption: Public footprint from GitHub stars, forks, and watchers when available.
Sustainability: Longer-term posture combining health, activity, adoption, confidence, and decay risk.

ToolVitals49/100Health44/100Shipping18/100Zombie Risk7/100

Overall Score 49 Critical

Activity 18

Reliability 44

Adoption 87

Sustainability 57

Score History

Scores collected daily. More data points appear as the tracker runs.

About this tool

What ToolVitals knows about Nylas Mail

:love_letter: An extensible desktop mail app built on the modern web. Forks welcome!

This tool has an OSI-approved open-source license signal.

Multiple signals suggest declining health or reduced shipping momentum.

Source-visible project Email Clients & Webmail OSI-approved OSS Scored Intelligence

Repository

GitHub Activity

nylas/nylas-mail

Stars 24,747

Forks 1,346

Watchers 24,747

Open Issues 1,003

Primary Language: JavaScript
Last Commit: 1291 days ago
Releases 90d: 0
Default Branch: master
License: MIT
Repository Status: Active repository

Evidence

Signal Quality

Data Confidence 100/100 Strong

Source Coverage 100/100 Strong

Publish Confidence 100/100 Strong

ConfidenceHigh-confidence score from multiple public signals.

Zombie RiskNo meaningful zombie signal right now.

How ToolVitals scores work

Openness

License Evidence

Class: OSI-approved OSS
License: MIT
Pricing Scope: No hosted pricing tracked

This tool has an OSI-approved open-source license signal.

Sources

Tracked Sources

Website https://nylas.com GitHub nylas/nylas-mail X https://x.com/nylas Changelog RSS https://nylas.com/feed

Profile

Classification

Category: Communication
Use Case: Email Clients & Webmail
Openness: OSI-approved OSS
License: MIT
Pricing Scope: No hosted pricing tracked
Tool Mode: Source-visible project
Score Model: Open Source Maintenance
Score Visibility: Scored Intelligence
Status: Critical

Hosted Pricing

Pricing Evidence

Scope: No hosted pricing tracked
Free Tier: Not detected
Currency: USD
Tracked Plans: 0

Maintainers

README Badge

Show this ToolVitals status in project docs.

[![ToolVitals](https://toolvitals.com/badges/nylas-mail.svg)](https://toolvitals.com/tools/nylas-mail/)

Open badge SVG

Latest

Recent Updates

Product Updates

Apr 9, 2026 Introducing Email Signatures for the Nylas Email API

Blog Posts

Jun 5, 2026 Give your AI agent real email and calendar context with the Nylas MCP server Jun 3, 2026 Give your scheduling agent its own identity May 21, 2026 Nylas compliance certifications explained: SOC 2, HIPAA & ISO standards for secure, trusted integrations May 7, 2026 The hidden cost of building your own email integration May 6, 2026 Give your AI agent an inbox: Nylas now has an official OpenClaw plugin

Next decisions

Useful paths from this profile

Nylas Mail

Dead checkIs Nylas Mail dead?

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