# Post / Reply Tweet API｜ Twitter | 2025

An ai tool your agent can run on one prepaid apifare key. Page: https://apifare.com/tools/fastcrawler/post-reply-tweet-api-twitter-2025-10-m

## What you need

An apifare key with credits (sign up: POST https://apifare.com/v1/signup {"email": "..."}; new accounts get 500 free credits). No other account or key.

## Inputs

- `cookie` (string, required): Cookies
- `tweetContent` (string, required): Tweet Content
- `mediaUrl` (string): Media Url
- `delegated_username` (string): delegated account username
- `schedule` (string): schedule
- `replyTweetId` (string): Reply Tweet Id

The most relevant fields; the search result's input_schema lists all of them.

## Price

5 credits reserved per run, settled to the run's true cost, never more than 20 credits (1 credit = $0.01). Failed runs are refunded. Exact numbers: https://apifare.com/capabilities

## Run it

1. Find it: MCP search_apis, or GET https://apifare.com/v1/search?q=Post%20%2F%20Reply%20Tweet%20API%EF%BD%9C%20Twitter%20%7C%202025 with Authorization: Bearer <token>. Take the result named "Post / Reply Tweet API｜ Twitter | 2025"; it carries a proxy_route.
2. Run it: MCP proxy_call with that proxy_route and the input JSON (apifare-mcp over stdio), or POST the proxy_route over HTTP with the input JSON as the body and the same Authorization header.
3. On HTTP 402, relay the body's human_readable field to your human verbatim, wait, then retry the same call. Every other error and its fix: https://apifare.com/errors.md