Sendmux records 37 monthly visits with -98.3% month-over-month growth and Free pricing. Skillry records 535,817 monthly visits with +1,762.1% growth and Freemium pricing.
Give every AI agent a real inbox and one API to use it
Agent Skills that give your coding agent real design taste
| Dimension / Metric | | |
|---|---|---|
| Official Domain | sendmux.ai | skillry.dev |
| Pricing Model | Free | Freemium |
| Monthly Visits | 37 (37) | 535.82K (535,817) |
| MoM Traffic Delta | -2.2K (-98.3%) | +507.04K (+1,762.1%) |
| Primary Market & Share | 🇺🇸 United States (100%) | 🇺🇸 United States (17%) |
| Direct Visits / mo | 12 | 242.88K |
| User Rating | 4.2 | 4.5 |
| Supported Platforms | Website | Website |
Give every AI agent a real inbox and one API to use it
Provision mailboxes on verified domains or a shared myagent.mx address, with clean JSON output that strips signatures and quotes.
Send over HTTP or SMTP using the same mailbox credential as a Bearer token and SMTP password, with Idempotency-Key retries and attachment support.
Bind keys to providers, delivery groups, weights, and quota windows so traffic stays inside the boundaries you set.
Signed webhooks for delivery and receipt events, an SSE stream for live mailbox clients, and typed change polling for resync.
Agent Skills that give your coding agent real design taste
Every Skill is designed, written and tested by the Skillry team, with templates and scripts built from a finished piece of work.
Skills cover web pages, slide decks, images, video and reports, so your agent can produce a range of assets.
Install and run Skills inside Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI and more.
Each Skill page shows a real result it generated, so you can judge the visual style before adding it.
SpecialistSupplies landing page design inspiration and prompts, focusing more on visual website layouts than code-ready agent skills.
SpecialistSupplies landing page design inspiration and prompts, focusing more on visual website layouts than code-ready agent skills.
SpecialistInstalls directly as a design skill pack to enforce UI rules, whereas Skillry acts as a broader discovery library.
SpecialistInstalls directly as a design skill pack to enforce UI rules, whereas Skillry acts as a broader discovery library.
Collaborative inbox and email management for teams
Collaborative inbox and email management for teams
Free / Open-sourceBroader community catalog of open-source agent SKILL.md files, but less focused specifically on design system templates.
Free / Open-sourceBroader community catalog of open-source agent SKILL.md files, but less focused specifically on design system templates.
Email an AI assistant and let it run your schedules, inbox and CRM
The universal context engine connecting agents to data, tools, and models
Managed auth and 10,000+ tools for the agents you're building
Fast Apply and agent-tuned inference for coding agents
Fast Apply and agent-tuned inference for coding agents
Free / Open-sourceOffers an open Markdown convention to guide AI coding assistants, but functions as a standard format rather than a curated library.
AI gateway, observability and guardrails for production LLM apps
SpecialistA hand-picked directory of design engineering resources, tools and inspiration
SpecialistA hand-picked directory of design engineering resources, tools and inspiration
Covers a wider range of Cursor plugins and MCP servers, but lacks Skillry's dedicated focus on agent skill files.
Covers a wider range of Cursor plugins and MCP servers, but lacks Skillry's dedicated focus on agent skill files.
