mrd

MRD — machine-readable datasheets for spacecraft components

Typed, datasheet-sourced specifications for 2,500+ flight hardware products across 24 categories — reaction wheels, star trackers, propulsion, radios, antennas, structures, ground stations and more — with 19,900+ values that each cite the datasheet page they came from. Underneath sits the datasheet layer itself: 26,000+ facts read from 800+ datasheets, each anchored to a quoted page, and the full text of 1,600+ datasheets indexed for questions.

Built for software and AI assistants, not only for reading. Ask in plain language, filter by engineering requirements, or download the whole thing.

"Find a reaction wheel over 0.2 N·m·s that runs on a 12 V bus, under 2 kg"

A  meets every requirement          VRW-B-02 · Vectronic · 0.2 N·m·s · 9–36 V · 1000 g
B  fails a named requirement        RW-0.06 · momentum 0.06 N·m·s — need ≥ 0.2
C  could fit, data not published    NanoTorque GSW-600 · missing: supply voltage

Three rules make the data usable by a machine:

• Nothing is guessed. A missing property means the vendor does not publish it, and the item is reported as "data missing" rather than silently dropped or filled with a typical value.
• Conditions are kept apart. Idle, steady-state and peak power are separate records with their measurement condition attached — never averaged into one number.
• Every value is traceable. Source file and page, plus a confidence level: L0 machine-extracted, L1 verified by a human against the vendor datasheet.

---

Use it from an AI assistant (MCP)

Hosted — no install. Add this as a custom connector in Claude, ChatGPT (developer mode) or any MCP client:

https://newspacemarket.com/mrd-connect/mcp

Local — for editors that speak stdio (Cursor, Windsurf, VS Code, Claude Desktop). Add to your MCP config:

{
  "mcpServers": {
    "mrd": {
      "command": "npx",
      "args": ["-y", "@newspacemarket/mrd-mcp"]
    }
  }
}

The package is a thin bridge: it speaks stdio to your editor and forwards to the hosted endpoint, so new tools appear without upgrading anything.

Eight tools arrive in the assistant:

tool	what it does
match_components	reverse search — requirements in, candidates grouped A / B / C with per-parameter verdicts; optional price ceiling and export-control filter
get_component_specs	the full typed layer of one category, for your own comparison or trade study
build_budget	mass and steady-state power of a stack, with bus-voltage checks and an honest list of what could not be counted
get_datasheet_digest	facts machine-read from one product's datasheet, by section (electrical, interfaces, mechanical, thermal, qualification, commercial…), each with page and verbatim quote
search_datasheet_facts	one fact key across a whole category — connector, protocol, TID, flight heritage, lead time, price — one row per product with page and quote
ask_datasheet	ask a datasheet a question and get the closest excerpts with page numbers, or scan every datasheet of a category for an exact term
design_stack	a whole spacecraft bus from a plain-language task; pass fixed product ids to lock parts you have already chosen
find_data_gaps	what is missing for a product, company or category and where to get it: already in the digest, in the datasheet text, or only from the vendor

Where it is listed

• Official MCP Registry — io.github.newspacemarket-com/mrd
• Smithery — info-zrja/newspace-mrd, one-click install into Claude, Cursor, VS Code and other clients
• Dataset mirror — Hugging Face

Use it from code

No authentication for reading. An optional free key raises rate limits five-fold — request one at /mrd-connect/.

curl "https://newspacemarket.com/mrd-connect/match?category=star-trackers&accuracy_max=10&bus_v=12"

• examples/python/select_wheels.py — reverse search, printing why each candidate passed or failed
• examples/python/budget.py — assemble a stack and budget it through the MCP tools
• examples/js/match.mjs — same search from Node, no dependencies
• examples/curl.md — every endpoint as a one-liner

The same four datasheet-layer calls are plain REST as well: /mrd-connect/digest?product_id=…, /mrd-connect/facts?category=…&key=…, /mrd-connect/datasheet?product_id=…&q=…, /mrd-connect/gaps?category=….

OpenAPI 3.1: openapi.json, served live at https://newspacemarket.com/mrd-connect/openapi.json. Import it as a ChatGPT Custom GPT Action, a LangChain / CrewAI / n8n toolkit, or convert it to Gemini function declarations.

Download the data

data/ holds a dated snapshot, regenerated as the layer grows:

file	contents
mrd-full.json	everything — products, values, property dictionary
mrd-values.csv	one row per value: product, property, number, unit, bound, condition, source, confidence
mrd-products.csv	one row per product: name, manufacturer, category, URL
mrd-properties.csv	the property dictionary — what each key means and its canonical unit

Live data is always newer than the snapshot; use get_component_specs or /mrd-connect/specs?category=… when freshness matters.

How the data is built

Values are extracted from vendor datasheets (text and, for scanned documents, page images), from vendor product pages, and from product descriptions — the source of every record says which. Units are converted by code, not by a model: kg to g, dBm to W, psi to bar, tf to mN. A validation pass rejects a figure whose unit does not match the property, and an outlier scan flags values that sit far from the category median for human review.

Coverage is not exhaustive. Where a vendor publishes nothing machine-readable, the product simply is not here — and where a required field is missing, the API says so by name instead of guessing.

Licence

• Code (the MCP bridge and examples): MIT — see LICENSE.
• Data in data/: CC BY 4.0, attribution "NewSpace Market" — see data/LICENSE-DATA.

Specifications are extracted from publicly published vendor materials and are provided as-is. Verify against the vendor datasheet before committing to a design.

Links

• Connection hub: https://newspacemarket.com/mrd-connect/
• AI component designer: https://newspacemarket.com/mrd-pilot/
• Catalogue: https://newspacemarket.com

Are you a vendor whose products are listed? Completing the missing fields takes minutes and is free — write to us from your company domain and we will send a direct link.