Moltline Studio

Official10 tools

by GarphenGate · Python

Fleet entry point: 22 hosted MCP servers, 160 tools, 110 free. Searches 138 agent skills.

com.moltlinestudio/catalog (MCP Server)

Fleet entry point that lists 22 hosted MCP servers, totaling 160 tools, including 110 free. It supports searching across 138 agent skills, with content grouped under Model Context Protocol (MCP) and agent-skill related categories. Topics for this catalog include agent-skills, ai-agents, claude, mcp, mcp-server, and model-context-protocol.

🛠️ Key Features

22 hosted MCP servers
160 tools, including 110 free
Search over 138 agent skills

🚀 Use Cases

Discover hosted MCP servers and their tools
Find agent skills related to MCP workflows

⚡ Developer Benefits

Centralized entry point for MCP server inventory
Tool and free-tool counts for quick scope assessment

⚠️ Limitations

Acts as a catalog/fleet entry point; no additional behavior beyond the provided counts and search scope is described.

Topics

agent-skillsai-agentsclaudemcpmcp-servermodel-context-protocol

Captured live from the server via tools/list.

search_catalog

Search all 138 catalog products by keyword and/or focus area. FREE. Typical input {"query": "email inbox", "limit": 5} returns a ranked list of product objects [{"slug": ..., "name": ..., "area": ..., "segment": ..., "tagline": ...}]. An empty query with an area set browses that area. Use when the caller names a keyword, product, or focus area to look up. Not for bundles (list_kits) and not for plain-language problem statements, which recommend_products ranks by fit rather than keyword match. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters3

query	string	optional	Space-separated keywords matched against name, tagline, slug, and segment, e.g. "email inbox".
area	string	optional	Optional focus-area filter; one of "productivity", "developertools", "personalassistant", "creative", "industryspecific", "educational". Empty means all areas.
limit	integer	optional	Maximum results to return; values outside 1-100 are clamped. Default 15.

Raw schema

{
  "type": "object",
  "properties": {
    "query": {
      "default": "",
      "type": "string",
      "description": "Space-separated keywords matched against name, tagline, slug,\nand segment, e.g. \"email inbox\"."
    },
    "area": {
      "default": "",
      "type": "string",
      "description": "Optional focus-area filter; one of \"productivity\",\n\"developertools\", \"personalassistant\", \"creative\",\n\"industryspecific\", \"educational\". Empty means all areas."
    },
    "limit": {
      "default": 15,
      "type": "integer",
      "description": "Maximum results to return; values outside 1-100 are clamped.\nDefault 15."
    }
  },
  "additionalProperties": false
}

preview_product

Preview one product: metadata, persona teaser, and paid-skill teasers. FREE. Typical input {"slug": "inbox-zero-assistant"} returns {"slug": ..., "name": ..., "tagline": ..., "persona_preview": ..., "skills": [{"name": ..., "preview": ...}], "free_skill": ..., "note": ...}. Returns teasers only, never full text. Use to judge a product before committing. Not for the complete persona or skill bodies (get_full_persona, get_full_product), and not when the caller wants instructions they can act on now (get_free_skill). Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "unknown slug '<value>'"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters1

slug

string

required

Product slug exactly as returned by search_catalog or recommend_products, e.g. "inbox-zero-assistant".

Raw schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "Product slug exactly as returned by search_catalog or\nrecommend_products, e.g. \"inbox-zero-assistant\"."
    }
  },
  "required": [
    "slug"
  ],
  "additionalProperties": false
}

get_free_skill

Load a product's free gateway skill with its complete instructions. FREE. Typical input {"slug": "inbox-zero-assistant"} returns {"slug": ..., "skill": "<skill name>", "instructions": "<full skill text>"}. Returns exactly one skill - the product's free gateway skill - chosen automatically from the slug, with no plan required. Use when the caller wants usable instructions immediately. Not for the product's other skills: those are named and need get_full_skill with a skill_name, which requires a paid plan. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "unknown slug '<value>'"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters1

slug

string

required

Product slug exactly as returned by search_catalog, e.g. "inbox-zero-assistant".

Raw schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "Product slug exactly as returned by search_catalog,\ne.g. \"inbox-zero-assistant\"."
    }
  },
  "required": [
    "slug"
  ],
  "additionalProperties": false
}

list_kits

List the 12 themed kits with pricing and member products. FREE. Takes no arguments. Returns a list of kit objects, each {"slug": ..., "name": ..., "price_usd": N, "tagline": ..., "members": ["product-slug", ...], "availability": ...}. Use a kit's slug with get_full_kit (premium). Kits are not sold standalone on any marketplace: price_usd is the bundle's reference value, and All-Access is how a caller actually unlocks one. Use when the caller asks about bundles or bundle pricing. Not for individual products (search_catalog) and not for a kit's full contents (get_full_kit). Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

upgrade_info

Explain how to unlock full personas, paid skills, and kits. FREE. Takes no arguments. Returns {"message": ..., "how": ..., "free_tier": ...} describing the upgrade path and what stays free. Use when a premium tool has been refused or the caller asks what a plan covers. Not for per-bundle or per-product pricing (list_kits, preview_product). Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

get_full_persona

Load a product's complete persona definition. PREMIUM (paid plan). Typical input {"slug": "inbox-zero-assistant"} returns {"slug": ..., "persona": "<full persona text>"}. Returns the persona text alone, with no skill bodies. Use when the caller needs the product's voice and operating rules only. Not when skills are also wanted - get_full_product returns persona and every skill in one call. Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "unknown slug '<value>'"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters1

slug

string

required

Product slug exactly as returned by search_catalog.

Raw schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "Product slug exactly as returned by search_catalog."
    }
  },
  "required": [
    "slug"
  ],
  "additionalProperties": false
}

get_full_skill

Load one paid skill's complete instructions from a product. PREMIUM (paid plan). Typical input {"slug": "inbox-zero-assistant", "skill_name": "Deep Triage"} returns {"slug": ..., "skill": ..., "instructions": "<full skill text>"}. Returns one named skill, selected by skill_name. Use after preview_product has shown the skill list and the caller wants one specific paid skill. Not for the free gateway skill, which get_free_skill returns with no plan, and not for every skill at once (get_full_product). Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "unknown slug '<value>'"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters2

slug	string	required	Product slug exactly as returned by search_catalog.
skill_name	string	required	Exact skill name as shown in preview_product's "skills" list for that product.

Raw schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "Product slug exactly as returned by search_catalog."
    },
    "skill_name": {
      "type": "string",
      "description": "Exact skill name as shown in preview_product's \"skills\"\nlist for that product."
    }
  },
  "required": [
    "slug",
    "skill_name"
  ],
  "additionalProperties": false
}

get_full_product

Load one product in full: persona plus every skill's instructions. PREMIUM (paid plan). Typical input {"slug": "inbox-zero-assistant"} returns {"slug": ..., "name": ..., "persona": ..., "skills": [{"name": ..., "instructions": ...}], "free_skill": {...}}. Returns persona plus every skill for one product. Use when the caller wants the whole product. Not for a single skill (get_full_skill) and not for a bundle of products (get_full_kit). Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "unknown slug '<value>'"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters1

slug

string

required

Product slug exactly as returned by search_catalog.

Raw schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "Product slug exactly as returned by search_catalog."
    }
  },
  "required": [
    "slug"
  ],
  "additionalProperties": false
}

get_full_kit

Load a themed kit and every member product in full. PREMIUM (paid plan). Typical input {"slug": "founder-kit"} returns {"slug": ..., "name": ..., "products": [{"slug": ..., "name": ..., "persona": ..., "skills": [...]}, ...]}. Returns every member product of one bundle in full, so the payload is large. Use only after list_kits has confirmed the kit slug. Not for a single product (get_full_product). Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"} (for example {"error": "unknown kit '<value>'"}). Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters1

slug

string

required

Kit slug exactly as returned by list_kits, e.g. "founder-kit".

Raw schema

{
  "type": "object",
  "properties": {
    "slug": {
      "type": "string",
      "description": "Kit slug exactly as returned by list_kits, e.g. \"founder-kit\"."
    }
  },
  "required": [
    "slug"
  ],
  "additionalProperties": false
}

recommend_products

Recommend catalog products for a need described in plain language. FREE. Typical input {"need": "help answering customer support emails"} returns {"need": ..., "recommendations": [{"slug": ..., "name": ..., "why": ..., "area": ..., "try_free": "<free skill name>"}], "next": "..."}. Use when the caller describes a problem instead of naming a product; ranking is by fit to the described need. Not for exact keyword or slug lookups (search_catalog). Errors: on invalid, missing, or malformed input this tool never raises a protocol error — it returns {"error": "<what is wrong and how to fix it>"}. Every call is read-only and idempotent, so after correcting the input it is always safe to retry.

Parameters2

need	string	required	The job or problem in plain language, a few words or a sentence, e.g. "help answering customer support emails".
limit	integer	optional	Maximum recommendations; values outside 1-10 are clamped. Default 5.

Raw schema

{
  "type": "object",
  "properties": {
    "need": {
      "type": "string",
      "description": "The job or problem in plain language, a few words or a\nsentence, e.g. \"help answering customer support emails\"."
    },
    "limit": {
      "default": 5,
      "type": "integer",
      "description": "Maximum recommendations; values outside 1-10 are clamped.\nDefault 5."
    }
  },
  "required": [
    "need"
  ],
  "additionalProperties": false
}

README.md9 KBView on GitHub

moltline-mcp

A thin, dependency-free stdio bridge to Moltline Studio's fleet of 22 hosted MCP servers.

Most modern MCP clients can connect to the fleet directly over Streamable HTTP — no install needed (see Direct connection below). This bridge exists for clients that only speak the stdio transport: it proxies newline-delimited JSON-RPC between your client and the hosted server, verbatim, with no telemetry and no dependencies beyond the Python 3.9+ standard library.

160 tools across 22 servers; 110 are free.
Free tier: no registration, no account, no credentials — connect and call tools immediately.
Premium tools are unlocked with a Moltline license. Set MOLTLINE_LICENSE in your MCP client's environment; the bridge sends it as the X-Moltline-License header and never writes it to argv, URLs or logs. See auth.md.
Independently checked by MCPize on the direct endpoints (scans of 5–6 September 2026: 6 A+, 15 A, 1 B+; scores 89–98). All 22 servers score 100 on clarity, 100 on reliability and 100 on trust, 95 on protocol and 87 on safety; the one finding raised on every server is that the free tier accepts anonymous access — which is the point of it — and the spread between servers sits in MCPize's "Market" dimension (a crowded category). Each server's MCPize listing links its own public result.

Find it on: Smithery · MCPize · Glama · Clawmart · MCP Registry

The fleet

Server	Tools	What it does
`catalog`	10	Search 138 agent skills and personas by plain-language job; preview any product.
`codereview`	7	Risk-scan a diff, flag AI-generated-code tells, find secrets, report complexity.
`govern`	8	Audit an MCP config or SKILL.md for over-broad scope and prompt-injection risk.
`timeops`	5	Business days, meeting overlap, recurrence expansion, deadline and SLA math.
`data`	7	Paste-your-data analytics: CSV profiling, A/B tests, correlation, growth, cohorts.
`humanizer`	5	Find AI-isms with evidence, fingerprint a writing voice, measure burstiness.
`business`	8	30 finance, bookkeeping, legal-ops and SMB operations persona-skill products.
`creator`	8	20 blogging, brand-voice, copywriting, video and social persona-skill products.
`educator`	7	8 curriculum, classroom, accommodations and exam-prep persona-skill products.
`outbound`	8	7 outreach, sequencing, deliverability, call-coaching and CRM-hygiene products.
`personal`	9	20 inbox, calendar, travel, meals and family-logistics persona-skill products.
`research`	8	7 research navigation, thesis, note-taking and citation persona-skill products.
`skillmd-lint`	6	Lint a SKILL.md for frontmatter, structure, secrets and size. All tools free.
`merchant`	6	Commerce arithmetic: processor fees, charge-to-net, invoice totals, proration.
`shipping`	6	Dimensional weight, parcel fit, landed cost, freight class, rate cards.
`shopify`	6	Check a product CSV, URL handles, variant matrices and metafield keys.
`dropship`	6	Dropshipping unit economics: margin, lead time, SKU mapping, price ladders.
`recall`	6	A portable knowledge-graph memory you pass in and get back. No database.
`vision`	6	Image header probing, bbox conversion, resize plans, color and detection math.
`regclock`	9	Incident-reporting deadlines from the legal text (EU CRA, NIS2, DORA, GDPR, UK GDPR, HIPAA, SEC 8-K), cited.
`taxlots`	8	Crypto cost basis: parse exchange CSVs, lint, match transfers, FIFO/LIFO/HIFO lots, Form 8949 rows, 1099-DA diff.
`optimize`	11	OR-Tools routing, 3-D packing, 1-D/2-D cutting, knapsack and shift rostering with stated limits.

Machine-readable discovery: api-catalog · per-server card at https://mcp.moltlinestudio.com/<server>/.well-known/mcp/server-card.json · fleet health.

Direct connection (preferred)

If your MCP client supports Streamable HTTP (Claude Desktop, Claude Code, Cursor, and most current clients do), point it straight at the hosted endpoint — nothing to install:

json

{
  "mcpServers": {
    "moltline-timeops": {
      "type": "http",
      "url": "https://mcp.moltlinestudio.com/timeops"
    }
  }
}

Swap timeops for any slug in the table above.

The stdio bridge (for stdio-only clients)

Install

Run directly (recommended) — the bridge is a single stdlib-only file, so a clone is all you need:

bash

git clone https://github.com/GarphenGate/moltline-mcp.git
python3 moltline-mcp/moltline_mcp.py timeops   # any of the 22 slugs; default: catalog

Docker — see Docker below if you prefer a container.

A PyPI package is planned; until then, use the methods above.

Client configuration

Point your MCP client at the script with an absolute path:

json

{
  "mcpServers": {
    "moltline-timeops": {
      "command": "python3",
      "args": ["/absolute/path/to/moltline-mcp/moltline_mcp.py", "timeops"]
    }
  }
}

Or run it through Docker (after docker build -t moltline-mcp .):

json

{
  "mcpServers": {
    "moltline-timeops": {
      "command": "docker",
      "args": ["run", "-i", "--rm", "moltline-mcp", "timeops"]
    }
  }
}

CLI

text

python3 moltline_mcp.py [server] [--timeout SECONDS] [--list] [--version]

server — one of the 22 slugs (default catalog); anything else fails fast with the valid list.
--timeout — per-request timeout in seconds (default 300, or env MOLTLINE_TIMEOUT).
--list — print the server slugs and exit.
Env MOLTLINE_BASE_URL — override the fleet base URL (for testing).
Env MOLTLINE_LICENSE — your Moltline license, sent as the X-Moltline-License header to unlock premium tools. Omit it and the bridge runs free-tier only.
Env MOLTLINE_DEBUG=1 — diagnostic logging on stderr (stdout stays protocol-clean). The license is never logged; debug output reports only whether one is configured.

Docker

The bridge also runs containerized (stdio in, network egress to the fleet required):

bash

docker build -t moltline-mcp .
docker run -i --rm moltline-mcp timeops   # any of the 22 slugs; default: catalog

See Client configuration for the matching mcpServers entry.

How it works

One process per server connection. Each JSON-RPC message read from stdin is POSTed to https://mcp.moltlinestudio.com/<server>; JSON and SSE-framed responses are relayed back to stdout as newline-delimited JSON. The bridge tracks the server-assigned Mcp-Session-Id and echoes the negotiated MCP-Protocol-Version, per the Streamable HTTP transport spec. It never inspects, stores, or reports your traffic.

Tests

The bridge ships with an offline test suite - no network, no dependencies:

bash

python -m unittest -v

Twenty-two tests cover the parts that actually break in a transport bridge: newline-delimited framing, SSE event splitting (multiple events, multi-line data: payloads, a trailing event with no blank line, comments and named events), session-id capture and reuse, protocol-version negotiation on initialize only, and error relay - a JSON-RPC error document is passed through verbatim, anything else becomes a well-formed -32603. CI runs them on Python 3.9, 3.12 and 3.13, plus a Docker build and container smoke test.

Access and licensing

Free tier — anonymous. No registration or credentials; all free tools work immediately.
Premium — unlocked with a Moltline license purchased (human-in-the-loop) at moltlinestudio.com. Set MOLTLINE_LICENSE in the environment and the bridge forwards it as the X-Moltline-License request header. It is deliberately not a command-line flag: argv is world-readable through ps. It is never placed in a URL and never logged. Details: auth.md.

License

Install

Tools (10)

search_catalogpreview_productget_free_skilllist_kitsupgrade_infoget_full_personaget_full_skillget_full_product

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://mcp.moltlinestudio.com/catalog

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "catalog": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.moltlinestudio.com/catalog"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.

Moltline Studio

com.moltlinestudio/catalog (MCP Server)

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

Topics

search_catalog

preview_product

get_free_skill

list_kits

upgrade_info

get_full_persona

get_full_skill

get_full_product

get_full_kit

recommend_products

moltline-mcp

The fleet

Direct connection (preferred)

The stdio bridge (for stdio-only clients)

Install

Client configuration

CLI

Docker

How it works

Tests

Access and licensing

Links

License

Install

Remote endpoint

Related servers