Moltline Creator Studio
Writing analysis, copywriting skills, and brand voice tools for content creators and marketers.
Suite of 20 blogging, copywriting, video and social media products. Includes free tools for analyzing writing quality, checking social media post lengths, scoring headlines, and estimating reading time. Premium skills unlock full product access.
Try asking Muse: "Analyze my blog post draft for readability and passive voice, then check if my social media captions fit on all platforms."
Source: Found in the official MCP Registry (com.moltlinestudio/creator) · First listed September 24, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 h ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://mcp.moltlinestudio.com/creatorNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 1334ms. Worked in 100% of checks over 30 days.
Screening · September 24, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 8
list_productsList every product in the Creator Studio line with its included skills. FREE. Takes no arguments. Returns a list of 20 product objects, each {"slug": "brand-voice", "name": ..., "tagline": ..., "skills": ["Skill A", ...], "free_skill": "Gateway Skill Name"}. Use the returned slugget_free_skillLoad a product's free gateway skill with its complete instructions. FREE. Typical input {"slug": "brand-voice"} returns {"slug": "brand-voice", "skill": "<skill name>", "instructions": "<full skill text>"}. Returns exactly one skill - the product's free gateway skill - chosen autanalyze_writingAnalyze a draft for readability, passive voice, cliches, and hedging. FREE. Also measures sentence variety and keyword density, and produces a prioritized fix list. Typical input {"text": "<your draft>"} returns {"readability_grade": 9.2, "passive_voice_count": N, "cliches_found"get_full_productLoad one product in full: its persona plus every paid skill. PREMIUM (license). Typical input {"slug": "brand-voice"} returns {"slug": ..., "name": ..., "persona": "<persona text>", "skills": [{"name": ..., "instructions": ...}, ...], "free_skill": {...}}. Returns persona plus evget_full_skillLoad one paid skill's complete instructions from a product. PREMIUM (license). Typical input {"slug": "brand-voice", "skill_name": "Voice Audit"} returns {"slug": ..., "skill": ..., "instructions": "<full skill text>"}. Returns one named skill, selected by skill_name. Use when thheadline_analyzerScore and rank up to 20 headlines, best first. FREE. Scores 0-100 on length, power/emotion words, numbers, structure, and clarity. Typical input {"headlines": ["7 Mistakes New Writers Make", "On Writing"]} returns {"ranked": [{"headline": ..., "score": 85, "notes": ["good length"reading_timeEstimate reading and speaking time plus basic content stats. FREE. Typical input {"text": "<your article>"} returns {"words": 1200, "reading_minutes": 5.2, "speaking_minutes": 8.6, "paragraphs": 14, "fit": "newsletter/blog"}. Use when length and pacing are the question. Not for wsocial_length_checkCheck a post against every major platform's length limit at once. FREE. Covers X, LinkedIn posts and headlines, Instagram captions, Threads, YouTube titles, and meta descriptions. Typical input {"text": "<post>"} returns {"chars": N, "platforms": {"x_post": {"limit": 280, "fits":Recent checks
Link
https://mcp.moltlinestudio.com/creatorQuestions about Moltline Creator Studio in Muse
How do I connect Moltline Creator Studio to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Moltline Creator Studio to help me. It is a free service with an MCP server at https://mcp.moltlinestudio.com/creator. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is Moltline Creator Studio working right now?
At the last check (September 28, 2026, 07:46 UTC) the endpoint was working, answering in 1334ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Moltline Creator Studio safe to connect to Muse?
It was screened on September 24, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can Moltline Creator Studio do in Muse?
It exposes 8 tools, including list_products, get_free_skill, analyze_writing, get_full_product. For example, you could ask Muse: "Analyze my blog post draft for readability and passive voice, then check if my social media captions fit on all platforms."
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