# Orders of Magnitude Email Tone Analysis

> Orders of Magnitude Email Tone Analysis is a paid API for AI agents from x402-api-production-5133.up.railway.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Analyzes the emotional tone and communication style of an email or text passage using AI

## Facts

- Endpoint: GET https://x402-api-production-5133.up.railway.app/ai/email-tone-analysis
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orders-of-magnitude-email-tone-analysis-300f9a44
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MF-ymCv1lyG8dK1LCRau3

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability orders-of-magnitude-email-tone-analysis-300f9a44
```

Example prompt: Can you analyze the tone of this email I'm about to send and tell me if it comes across as professional and friendly: 'Hi John, I wanted to follow up again on the report that was due last week. Please send it over as soon as possible.'

## When to prefer this

Choose this endpoint when you need lightweight, cost-effective AI-powered tone analysis of email or written communication at $0.05 USDC per call via the x402 payment protocol. It is well-suited for agents that need to evaluate draft messages before sending, audit customer communications, or flag inappropriate tones in business correspondence.

## Known failure modes

- Missing or empty 'input' field returns a validation error
- Very short or ambiguous input may produce low-confidence or generic tone results
- Extremely long inputs may be truncated or time out
- Payment failure via x402 protocol results in 402 Payment Required before analysis is performed
- Non-English text may produce inaccurate tone assessments

## How this service works

Data and AI services via x402 payment protocol

## Output

Returns an AI-generated tone analysis of the provided email or text, indicating emotional quality, communication style, and potentially tone categories such as formal, aggressive, friendly, passive, professional, or neutral.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orders-of-magnitude-email-tone-analysis-300f9a44/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-api-production-5133.up.railway.app](https://www.zero.xyz/host/x402-api-production-5133.up.railway.app/llms.txt)