Sendoff
Sendoff emails your list (newsletters, launches, announcements) from Claude or Codex, self-hosted on your own Cloudflare and AWS accounts and sending through Amazon SES.
Sendoff emails your list (newsletters, launches, announcements) from Claude or Codex, self-hosted on your own Cloudflare and AWS accounts and sending through Amazon SES.
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Open Source
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See how Sendoff compares
Sendoff is a practical fit for buyers evaluating Open Source, Email Marketing, and GitHub tools.
- Who is it for?
- Developers who already work in Claude Code or Codex and need to send a newsletter from the same session, because the agent drafts, previews and sends through Sendoff's MCP server.
- Pricing
- unknown
Product information
What this product does
Sendoff emails your list (newsletters, launches, announcements) from Claude or Codex, self-hosted on your own Cloudflare and AWS accounts and sending through Amazon SES.
Company & Maker
Who built Sendoff?
- Product
- Say "send it." to automatically email your list
- Live since
- Nov 2026
The maker hasn't published a public statement we can verify yet.
Researched with AI · Data refreshed 4 minutes ago · How we score
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Sendoff is an open-source, MIT-licensed newsletter tool by Hayden Bleasel that you deploy to your own Cloudflare and AWS accounts and run from Claude or Codex. Developers and solo founders use it to send newsletters, launches and announcements to one list through Amazon SES.
Who should use
Buyer-fit is derived from approved personas and use-case evidence. Search-volume noise stays labeled separately.
Best-fit workflows
- Drafts a newsletter issue from a prompt in Claude Code or Codex and pours the Markdown into one fixed email layout.
- Sends a product launch email from your own domain through Amazon SES after you approve a test of the exact version.
- Imports a subscriber CSV and back-catalog issues while skipping people who unsubscribed, bounced or complained.
- Hosts a signup page with double opt-in and Turnstile for a single mailing list.
- Reports send progress, bounces and unsubscribes back to the agent for past and current sends.
- Developers who already work in Claude Code or Codex and need to send a newsletter from the same session, because the agent drafts, previews and sends through Sendoff's MCP server.
Pricing reality
Vendor stated
Open source under the MIT license, with no Sendoff subscription.
Actual cost
Running costs come from your own Cloudflare Workers Paid plan and Amazon SES per-email fees, billed by those providers.
Hidden costs
3 hidden cost warnings — unlock to view
Pricing reality
Last updated Nov 2026
Starting price
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Mindber only shows named plan cards when they come from linked pricing evidence. If the tier data is incomplete, this page falls back to the listed starting price instead of fabricating plan names or $0 tiers.
General buyer tips
Common across software subscriptions, not findings about this product.
True cost for your case
LIVE ESTIMATEEstimated spend
--Starting price has not been verified from a linked pricing source yet.
Prices change often — confirm on the vendor's site before you buy.
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Activity signals
Insufficient data
Only 6 of 5 minimum public signals linked. Score appears once we collect 0 more independent signals.
HOW THIS TOOL SCORES
Scores compare this tool with 17 similar tools in Open Source. Use it to judge Innovation and Capability before you shortlist.
Innovation Index™
Is it new, different, and easy to understand?
Medium confidence (60%) - some sub-scores have thin evidence.What this means →
Functionality Score™
Does it cover the jobs buyers expect, and can it keep up?
Low confidence (30%) - some sub-scores have thin evidence.What this means →
Data sources
Traffic & search proof
Public view keeps the ratio story. Paid view unlocks exact monthly visits, full region coverage, and CPC-level keyword intelligence.
Google Trends live interest
Live Google Trends data for Sendoff: interest over time, regions, topics, and related queries.
Tracks 12-month Google search interest on a 0-100 relative interest scale.
Includes regional demand, so readers can see where search interest is strongest.
Includes related topics and related queries to surface adjacent demand and search intent.
FAQ
Only linked Q and A rows are shown. Empty FAQ data stays hidden.
Community & reach
Public numbers each platform shows for the product's own channels.
Sources and methodology
Only evidence with a linked source record or explicit feature provenance is shown here. Data without provenance stays off the page.
COMMUNITY CREDITS
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Verified contributions help the page stay honest. The wider member action set still lives in your dashboard so the public page stays focused on the two highest-signal workflows.
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Community audits
Member opinion — not a Mindber assessment
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