not read yet
Use
- For
- Teams who want AI agents like Claude to run email campaigns across their existing email provider
- Price
- Free plan · From $19/mopricing page, read Oct 27, 2026
- Company
- Desler Digital Enterprises LLC · Domain since 2026privacy policy · domain registered
- Runs as
- API
- Used for
- Create win-back campaigns for subscribers inactive 90 days
- Review AI-drafted emails before approving and sending
- Send transactional emails through the REST API
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantssendinel.ai ↗
- Run byDesler Digital Enterprises LLCprivacy policy ↗
- Certifications they stateGDPR · CCPAprivacy policy ↗
- Privacy policy updated2026-04-08privacy policy ↗
These are Sendinel's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.
- MCP serverai.sendinel/mcp-serververified in the MCP registry
- Stateanswers, requires sign-inchecked 2026-10-27
- Address to connectsendinel.ai/mcp
- OpenAPI spec202 pathsthe spec ↗
- API docssendinel.ai/developerthe vendor's page ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
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Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use Sendinel for?
Sign in to leave a noteWhat is Sendinel?
Runs email campaigns, contacts and analytics for AI agents over MCP or REST, sending through Resend, SendGrid, Postmark, SES or Mailgun. It is listed in the Atlas under Marketing and made by Desler Digital Enterprises LLC.
Who is Sendinel for?
Teams who want AI agents like Claude to run email campaigns across their existing email provider
How much does Sendinel cost?
Sendinel has a free plan; paid plans start at $19/mo, per its pricing page on 2026-10-27.
Is Sendinel free?
Yes, Sendinel has a free plan, per its pricing page on 2026-10-27.
Do people use Sendinel?
Little sign of use.
Who owns Sendinel?
Sendinel is run by Desler Digital Enterprises LLC, per its privacy policy (2026-10-27).
Is Sendinel safe?
We do not audit vendors. What Sendinel publishes, read 2026-10-27: GDPR, CCPA stated on its privacy policy.
How do I cancel Sendinel?
In its own words (terms of service, 2026-10-27): “You may cancel your subscription at any time.”
What are alternatives to Sendinel?
In Marketing, by use: Cometly, Blotato, Ads Uploader, Typeface, Reporting Ninja, Maileroo.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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