Official MCP RegistryListed
Caption-Pack
Deterministic social-caption API: hooks, bodies, CTAs + hashtags as JSON. No LLM in the loop.
First seen 18 Oct 2026. Evidence as of 18 Oct 2026.
3
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| check_balance | Use before generating when you're unsure the key still has credits, or when the user asks about their plan, tier, or expiry. Shows remaining API credits, key tier, and expiry. | Not declared |
| generate_captions | Use when the user wants ready-to-post social captions — hooks, post bodies, CTAs, and hashtags as JSON for LinkedIn, Instagram, TikTok, or X. Deterministic template engine (no LLM): best for on-brand, repeatable captions, not open-ended creative writing. tone: warm | bold | professional | playful platform: linkedin | instagram | tiktok | x count: 1-10 captions. Costs 1 API credit per call. | Not declared |
| mint_free_trial | Use when no API key is configured and the user wants to try Caption-Pack free. Only call after the user agrees to the free tier — never mint silently. Mints a 25-call trial API key (no card, no account). Abuse guards: one key per IP per day, 7-day expiry, free keys can never convert to paid. The key is shown ONCE — save it as CAPTIONPACK_API_KEY immediately. | Not declared |
Change history
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | io.github.jeshuadomingo-byte/caption-pack | 18 Oct 2026 | 18 Oct 2026 | 1 |