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PitchPilot Cold Email Grader
x402
PitchPilot Cold Email Grader is a paid API for AI agents from pitchpilot-outreach-api.pitchpilot-agents.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Grades a cold email's subject line and body on a 0-100 scale with an A-D letter grade and itemized checks
Price / call$0.005
Success—
StatusUnknown
How this service works
Paid micro-utilities for cold-email outreach agents: domain deliverability audits, cold-email grading, template generation, plus a tools toolbox (hashing, JWT decode, IDs, slugs, JSON, regex, crypto prices, domain age, weather). Paid via x402 (USDC on Base).
Output
Returns a JSON object with a numeric score from 0-100, an A-D letter grade, and an array of check objects detailing individual criteria evaluated (e.g. subject line clarity, spam trigger words, call-to-action presence, personalization signals).
Example use cases
Pre-send cold email quality check
“Before I send this outreach email, can you score it for me? Subject: 'Saw your LinkedIn post about hiring' — body: 'Hey Mark, your post about scaling your eng team caught my eye. We've helped 30 similar startups automate onboarding and cut time-to-productivity by half. Worth a quick chat?'”
A/B copy comparison for sales rep
“I have two versions of a cold email and I want to know which one scores better. Start with version A — subject: 'Idea for your team', body: 'Hi Lisa, I think we can help you close more deals with less effort. Our tool plugs into your CRM in under an hour. Want to see how?'”
Agency reviewing client outreach draft
“My client sent me a draft cold email to review — can you run it through a grader and tell me the score and letter grade? Subject: 'Reducing churn at [Company]', body: 'Hi there, I specialize in helping SaaS companies like yours reduce churn by 20% in 90 days using behavioral email sequences. Can we talk this week?'”
Technical details
Endpoint
GEThttps://pitchpilot-outreach-api.pitchpilot-agents.workers.dev/gradeWhen to prefer
Use this endpoint when an AI agent or sales automation workflow needs a fast, automated quality gate on cold email copy before sending — especially when you want a structured score plus itemized feedback checks rather than free-form LLM critique. At $0.005 per call it is cost-effective for high-volume outreach pipelines.
Side effects
- Missing required 'subject' or 'body' query parameters returns an error or degraded response
- Very short or empty email body may yield a low score with minimal check detail
- Non-English content may not be graded accurately
- Payment failure via x402 (insufficient USDC balance) blocks access with a 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"grade": "B",
"score": 82,
"checks": []
}
}Tags
x402
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