# StableSocial Facebook Post Comment Replies

> StableSocial Facebook Post Comment Replies is a paid API for AI agents from stablesocial.dev, paid per call via x402, $0.06/call, status unknown (last checked 2026-09-14).

Fetches replies to a specific Facebook post comment using a feedback_id and expansion_token, with pagination support.

## Facts

- Endpoint: POST https://stablesocial.dev/api/sc/facebook/post/comment/replies
- Price: $0.06/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stablesocial-facebook-post-comment-replies-4f0d7f3f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RCqpwUCIlhiFknHR_dwUu

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 stablesocial-facebook-post-comment-replies-4f0d7f3f -d '<json body>'
```

Example prompt: Pull all the replies to that Facebook comment — the feedback_id is AB1234567890 and the expansion_token is XYZ_TOKEN_ABC — and show me who replied and what they said.

## When to prefer this

Choose this endpoint when you need to retrieve replies nested under a specific Facebook comment and already have the feedback_id and expansion_token from a prior call to the /facebook/post/comments endpoint. It's ideal for pay-per-request use without requiring OAuth or subscriptions, making it suitable for one-off or low-volume data extraction tasks on public Facebook content.

## Known failure modes

- Invalid or missing feedback_id returns an error — note that feedback_id is NOT the comment id
- Invalid or expired expansion_token causes request failure
- Invalid cursor value breaks pagination and may return no results
- Rate limits or payment failures result in 402 responses
- Non-public or restricted Facebook comments may return empty or error responses

## How this service works

Pay-per-request access to social media data from TikTok, Instagram, Facebook, Reddit, and LinkedIn. No auth, no subscriptions.

## Output

Returns a list of reply objects for the specified Facebook comment, each containing reply content, author details, timestamps, and reaction counts, plus a pagination cursor for fetching additional pages of replies.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "cursor": {
   "type": "string",
   "description": "The cursor to paginate to the next page"
  },
  "feedback_id": {
   "type": "string",
   "minLength": 1,
   "description": "The *feedback_id* of the comment. Be careful, this is not the comment id. You can get the feedback_id from the /v1/facebook/post/comments endpoint."
  },
  "expansion_token": {
   "type": "string",
   "minLength": 1,
   "description": "The expansion_token of the comment. You can get the expansion_token from the /v1/facebook/post/comments endpoint."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stablesocial-facebook-post-comment-replies-4f0d7f3f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from stablesocial.dev](https://www.zero.xyz/host/stablesocial.dev/llms.txt)