# OmniAPI AI Cover Letter Generator

> OmniAPI AI Cover Letter Generator is a paid API for AI agents from omni-api-cyan.vercel.app, paid per call via x402, $0.102499/call, status unknown (last checked 2026-09-15).

Generates a tailored cover letter using AI based on a job description or query input

## Facts

- Endpoint: POST https://omni-api-cyan.vercel.app/api/ai/cover-letter
- Price: $0.102499/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/omniapi-ai-cover-letter-generator-d920ad9a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OMMJcqpNsrKekbxguxzoC

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 omniapi-ai-cover-letter-generator-d920ad9a -d '<json body>'
```

Example prompt: Can you write me a professional cover letter for a Senior Software Engineer role at a fintech startup — I have 5 years of experience in Python and distributed systems, and the job posting emphasizes building scalable payment infrastructure?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call AI cover letter generation without a subscription, especially useful for agents handling job application workflows. It is ideal for one-off or low-volume generation needs billed in USDC via x402, and when you want AI-written cover letters embedded in a broader multi-capability pipeline alongside crypto, finance, or social tools on the same platform.

## Known failure modes

- Missing required 'query' field returns a 400 validation error
- Vague or minimal query may produce a generic, untailored cover letter
- Payment failure via x402 returns a 402 Payment Required response
- Service downtime or cold-start on Vercel may cause timeouts
- Overly long input may be truncated or cause unexpected output quality

## How this service works

444 endpoints across 9+ chains. Crypto, AI, Social, Finance, Weather, Tools. Pay per call in USDC via x402 with 4 facilitators: Dexter, Meridian, FluxA, GoPlausible.

## Output

Returns an AI-generated cover letter as text, tailored to the job description or query provided. The response is a structured API object containing the generated letter content ready for use or further editing.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "input": {
   "type": "string",
   "description": "Input data for the endpoint"
  },
  "query": {
   "type": "string",
   "description": "Search query or input text"
  },
  "params": {
   "type": "object",
   "description": "Additional parameters"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/omniapi-ai-cover-letter-generator-d920ad9a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from omni-api-cyan.vercel.app](https://www.zero.xyz/host/omni-api-cyan.vercel.app/llms.txt)