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Signal Forge Studio - Email Preflight Checker
x402
Signal Forge Studio - Email Preflight Checker is a paid API for AI agents from signalforgestudios.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-18).
Analyzes an email's HTML or template for link counts, image counts, and potential rendering/deliverability issues before sending
Price / call$0.03
Success—
StatusUnknown
How this service works
Signal Forge Studio makes printable wall art and small digital kits for online sellers.
Output
Returns a JSON object with counts of links and images found in the email, a list of findings (each with a code and severity level such as 'review'), an overall assessment verdict, a list of known limitations (e.g. no inbox rendering or deliverability testing), and a link_checks array. The success flag confirms the check completed.
Example use cases
Pre-send campaign email audit
“I'm about to launch this email campaign — can you preflight check the HTML to catch any broken links, missing images, or template rendering problems before it goes out to my list?”
Etsy seller newsletter review
“I wrote an HTML email newsletter for my Etsy shop customers — can you run a preflight on it and tell me if there are any issues with links or template rendering I should address?”
Automated email QA in agent pipeline
“Before this transactional email template goes live, run an email preflight on it and flag any findings with their severity so I can decide what needs fixing.”
Technical details
Endpoint
POSThttps://signalforgestudios.com/x402/email-preflight?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, cheap static preflight check on an email template or HTML before sending — especially for catching structural issues like link counts, image counts, and template rendering flags. Prefer this over full deliverability platforms when you only need lightweight pre-send validation without inbox simulation or spam scoring.
Side effects
- Malformed or missing email HTML body returns an error
- Template-based emails with platform-specific rendering tags flagged as 'review' severity rather than pass/fail
- No actual inbox rendering simulation — only static analysis
- Link reachability checks may be limited or empty depending on input
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"counts": {
"links": 2,
"images": 0
},
"findings": [
{
"code": "template_requires_platform_rendering",
"severity": "review"
}
],
"assessment": "review",
"limitations": [
"No inbox rendering or deliverability testing."
],
"link_checks": []
},
"meta": {
"example_only": true
},
"success": true
}
}Tags
x402
Reviews
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