XPoster.App

What is XPoster.App?

XPoster writes posts, articles, and replies in your voice, with the depth of your niche. It is built on Claude, Sonnet, and Opus, and it is not affiliated with X Corp.

What XPoster.App does

There are 15 content modes and up to 16 tones per niche. Each niche has its own system prompt, content pillars, voice rules, and tone presets. Forty-eight niches are covered, from SaaS and crypto to fitness, discipline, and philosophy, and each one is a different system. Scan an X profile, or paste posts already written. XPoster reads sentence length, punctuation habits, vocabulary, and how a post opens and closes, then holds that voice across modes and tones. A separate engine per niche carries its own banned-phrase list, and every draft is scored for hook, readability, length, and AI tells. Polish mode finishes a rough draft in the same register.

Who XPoster.App is for

People who want posts, articles, and replies in their own voice can start with 30 free credits and no card, up to 100 credits. Starter, Creator, and Pro are the paid plans. MCP is included with Pro, for Claude Code, Cursor, and Claude Desktop.

How XPoster.App works

Sign up free and get 30 credits with no card, up to 100 as the account is set up. Credits never expire. There is nothing to connect on X. XPoster writes the drafts, and nothing is published in your name without you. On Pro, an assistant can generate a post, polish a draft, or check the balance, on the same account and the same credits, with no separate API pricing. Create a key under API Keys. The key is shown once. The page says it will store a hash of it, not the key itself. You can hold up to five keys at a time. Keys never expire, and revoking one stops it immediately.

Key features

• 15 content modes and up to 16 tones per niche, with the same persona underneath.
• Forty-eight niches, each with its own system prompt, pillars, voice rules, and tone presets.
• Voice is read from an X profile or from posts already written, including sentence length and punctuation habits.
• Polish mode finishes a rough draft in the same register, with hook, structure, and AI tells fixed.
• MCP on Pro can generate a post, polish a draft, list niches, or check credits.
• Credits never expire. No seats and no per-mode upsells.

Pricing

As listed on xposter.app, checked 13 October 2026. Prices can change; see the site for current terms.

• Start free with 30 credits and no card, up to 100 credits. Credits never expire. No seats, no per-mode upsells, and no expiry dates.
• Starter is $4.99/month for 100 credits, listed as ~50 posts a month. It includes reply, poll, and story posts, a rewrite tool, advanced mode and language, and the Claude Haiku model.
• Creator is $9.99/month for 300 credits, listed as ~150 posts a month. It includes everything in Starter, plus thread and carousel scripts, bio, repurpose, and deep read, and the Claude Sonnet model.
• Pro is $19.99/month for 800 credits, listed as ~400 posts a month. It includes everything in Creator, plus article, newsletter, and cold DM, the Claude Opus model, max quality output, and MCP.
• By size and model, a short post is 1 credit, a standard post is 2, and a thread is 4. Stronger models cost proportionally more.

Facts from xposter.app, checked 13 October 2026

• XPoster is not affiliated with X Corp.
• MCP tools are generate_post, polish_draft, list_niches, and check_credits.
• The page says it will store a hash of the key, not the key itself. A key starts with xp_live_ and is shown once.
• Rate limits are per key. Up to five keys can be held, and keys never expire.

Written from XPoster.App's own website (Homepage, Docs). The maker can claim this listing to edit it.