com.moltlinestudio/optimize MCP Server

This MCP server is a thin, dependency-free stdio bridge to Moltline Studio’s fleet of 22 hosted MCP servers. It proxies newline-delimited JSON-RPC between an MCP client that supports only stdio and the hosted server, verbatim, without telemetry, using Python 3.9+ standard library only.

🛠️ Key Features

Proxies newline-delimited JSON-RPC over stdio (verbatim)
No dependencies beyond Python 3.9+ standard library
Part of Moltline Studio fleet of 22 hosted MCP servers
Includes routing/packing optimization topics: vehicle routing, 3-D packing, cutting stock, rostering, knapsack
Tool availability: 7 of 11 free

🚀 Use Cases

Vehicle routing optimization
3-D packing and cutting stock
Rostering scheduling
Knapsack optimization
Works with OR-Tools (per description)

⚡ Developer Benefits

Direct Streamable HTTP typically preferred; this bridge targets stdio-only clients
No telemetry reported by the bridge
Accessible via MCP Model Context Protocol connectivity

⚠️ Limitations

Designed for clients that only support the stdio transport (not direct HTTP)
Free tier limited: 7 of 11 free

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.

stops	array	required	list of stop objects, depot first: id, optional demand.
matrix	array	required	square distance (or time) matrix, row i column j = cost from stop i to stop j.
depot	integer	optional	index of the depot in stops (default 0).
vehicle_capacity	number	optional	optional capacity in the units of demand (0 = unlimited).
time_limit_s	number	optional	solver time budget in seconds (default 3, max 15).

stops	array	required	depot first; each: id, demand, window [earliest_min, latest_min], service_min.
matrix	array	required	square distance matrix in your units.
vehicles	array	required	list of {id, capacity, max_distance}; capacity in the units of demand.
depot	integer	optional	index of the depot in stops (default 0).
time_matrix	array	optional	optional square travel-time matrix in minutes (defaults to matrix).
drop_penalty	number	optional	cost of leaving a stop unserved (0 = every stop must be served).
time_limit_s	number	optional	solver time budget in seconds (default 10, max 60).

points	array	required	list of {id, lat, lon} (up to 200).
unit	string	optional	km (default) or mi.

items	array	required	list of {id, l, w, h, weight, qty, rotation, fragile}, all in one length unit.
containers	array	required	list of {id, l, w, h, max_weight, qty}; used in the order given.
rules	object	optional	optional {min_support: 0-1, default_rotation: any\|upright\|fixed}.

items	array	required	list of {id, l, w, h, weight, qty, rotation, fragile}.
containers	array	required	list of {id, l, w, h, max_weight, qty}.
rules	object	optional	optional {min_support: 0-1, default_rotation: any\|upright\|fixed}.

Moltline Optimize

com.moltlinestudio/optimize MCP Server

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

Topics

route_plan

route_plan_fleet

distance_matrix_haversine

pack_bins

pack_bins_large

cutting_stock_1d

cutting_stock_2d

roster_shifts

knapsack_select

validate_problem

explain_solution

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

stock	array	required	stock lengths available: {length, cost, qty} (qty = how many of that length may be used; default unlimited).
parts	array	required	required pieces: {length, qty}.
kerf	number	optional	material lost per cut (same unit as lengths).
time_limit_s	number	optional	solver time budget in seconds (default 3, max 15).

sheets	array	required	{id, l, w, qty}; used in the order given.
parts	array	required	{id, l, w, qty, rotate}; rotate overrides the grain rule per part.
kerf	number	optional	saw blade width lost per cut.
grain	boolean	optional	true when parts must keep their orientation (l along the sheet's l).

staff	array	required	{id, skills[], max_hours, min_hours, unavailable[], prefer[], avoid[], max_shifts}.
shifts	array	required	{id, start, end (ISO 8601 local), required, skill, weight}.
rules	object	optional	{min_rest_hours (default 0), max_consecutive_days (default 7), max_shifts_per_day (default 1)}.
time_limit_s	number	optional	solver time budget in seconds (default 10, max 60).

type	string	required	route, pack, cut1d, cut2d, roster or knapsack.
problem	object	required	the same object you would pass to the tool (stops/matrix/vehicles, items/containers, ...).