# StableDesign – List Comment Replies

> StableDesign – List Comment Replies is a paid API for AI agents from stabledesign.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Lists replies to a specific comment on a Canva design via the StableDesign pay-per-call API

## Facts

- Endpoint: POST https://stabledesign.vercel.app/api/comments/list-replies?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stabledesign-list-comment-replies-b0ea0cf3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ke3leiygB8szktRyAHKtV

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 stabledesign-list-comment-replies-b0ea0cf3 -d '<json body>'
```

Example prompt: Can you pull all the replies to comment ID abc123 on my Canva design xyz789 using StableDesign?

## When to prefer this

Use this endpoint when you need to retrieve the full reply thread for a specific comment on a Canva design and you want pay-per-call pricing via USDC micropayments rather than a subscription. Best suited for agents orchestrating design review workflows where comment threads need to be inspected or summarized.

## Known failure modes

- Invalid or missing comment ID returns 400 error
- Design not found or access denied returns 403 or 404
- Insufficient USDC balance or failed micropayment returns 402
- Malformed request body returns 400
- Rate limiting or service unavailability returns 503

## How this service works

Pay-per-call Canva design API via MPP micropayments. Create, list, export designs and upload assets.

## Output

Returns a paginated list of replies to a specific design comment, including reply text, commenter identity, timestamps, and any relevant metadata for each reply in the thread.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "design_id": {
   "type": "string",
   "minLength": 1
  },
  "thread_id": {
   "type": "string",
   "minLength": 1
  },
  "continuation": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stabledesign-list-comment-replies-b0ea0cf3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stabledesign.vercel.app](https://www.zero.xyz/host/stabledesign.vercel.app/llms.txt)