# Synergy Proofreader

> Synergy Proofreader is a paid API for AI agents from api.exo-trust.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Proofreads text for grammar, spelling, punctuation, and clarity issues, returning corrections with explanations.

## Facts

- Endpoint: POST https://api.exo-trust.com/execute/proofread
- 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/synergy-proofreader-2c7246de
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xElgGgBj4_Dd3V4RffNyA

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 synergy-proofreader-2c7246de -d '<json body>'
```

Example prompt: Can you proofread this paragraph and explain any grammar, spelling, or punctuation mistakes you find? 'There is alot of reasons why the project have failed last quarter, and we needs to adressed them immidiately.'

## When to prefer this

Choose this endpoint when you need not just corrected text but also explanations of what was wrong — ideal for learning, editorial review, or when the user wants to understand their mistakes. Prefer it over a silent rewrite endpoint when transparency and reasoning about errors matter.

## Known failure modes

- Empty or missing text field returns a validation error
- Extremely long text inputs may be truncated or rejected
- Non-text binary content will fail to process
- Ambiguous intentional stylistic choices may be incorrectly flagged as errors
- Network timeout if service is unavailable

## How this service works

Proofread text: grammar, spelling, punctuation, and clarity fixes with explanations.

## Output

Returns the corrected version of the submitted text along with itemized explanations of each fix made, covering grammar, spelling, punctuation, and clarity improvements.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "corrections": [
    {}
   ],
   "corrected_text": "example"
  },
  "status": "completed",
  "receipt": {
   "amount": 0.05,
   "method": "x402",
   "settled": true,
   "currency": "USDC"
  },
  "task_id": "00000000-0000-0000-0000-000000000000"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synergy-proofreader-2c7246de/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.exo-trust.com](https://www.zero.xyz/host/api.exo-trust.com/llms.txt)