io.github.newspacemarket-com/mrd — MCP Server

The MCP server io.github.newspacemarket-com/mrd provides spacecraft component specifications sourced from vendor datasheets. It supports search, dumps, and budgets workflows over a machine-readable dataset of hardware details for smallsat and cubesat contexts.

🛠️ Key Features

Datasheet-sourced spacecraft component specifications
Search functionality
“Dumps” capability
“Budgets” capability
Exposes 3 tools (toolCount: 3)

🚀 Use Cases

Looking up component specs via search
Producing structured outputs via dumps
Evaluating component budgets based on datasheet fields
Working with smallsat / newspace component data

⚡ Developer Benefits

Model Context Protocol integration (mcp, model-context-protocol)
Dataset-oriented content (dataset)
OpenAPI-aligned server metadata (openapi)
Versioned/public listing references in the readme excerpt

⚠️ Limitations

Scope is limited to spacecraft component datasheets (vendor-sourced specifications)
Server description and excerpt shown are truncated and do not enumerate all fields

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.

code

"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:

code

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

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

json

{
  "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/.

bash

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.

category	string	required	category slug, e.g. reaction-wheels, deployers, thermal
subtype	string	optional	optional subtype slug, e.g. cmg, heatpipe, sequencer

category	string	optional	which component class to search — ONE per call; for several classes call once per class (default reaction-wheels)
momentum_min	number	optional	wheels: min angular momentum storage, Nms
torque_min	number	optional	wheels: min torque, mN*m
clock_min	number	optional	OBC: min CPU clock, MHz
ram_min	number	optional	OBC: min RAM, MB
storage_min	number	optional	OBC: min storage, GB
capacity_min_wh	number	optional	battery: min capacity, Wh
cycles_min	number	optional	battery: min cycle life
band	string	optional	radio: frequency band UHF\|VHF\|S\|X\|L\|C\|Ku\|Ka
rate_min_kbps	number	optional	radio: min data rate, kbps
txpow_min_w	number	optional	radio: min TX RF power, W
panel_power_min_w	number	optional	solar panel: min BOL output, W
thrust_min_mn	number	optional	propulsion: min thrust, mN
isp_min_s	number	optional	propulsion: min specific impulse, s
impulse_min_ns	number	optional	propulsion: min total impulse, N*s
prop_type	string	optional	propulsion: electric \| chemical \| cold-gas \| water; platforms: electric \| chemical \| any (the bus carries propulsion)
sunacc_max	number	optional	sun sensor: worst acceptable accuracy, deg
range_min_ut	number	optional	magnetometer: min field range, uT
mag_res_max	number	optional	magnetometer: worst resolution, nT
dipole_min_am2	number	optional	magnetorquer: min dipole moment, A*m2
gyro_range_min_dps	number	optional	IMU: min gyro range, deg/s
bias_max_degh	number	optional	IMU: worst bias instability, deg/h
arw_max	number	optional	IMU: worst angle random walk, deg per sqrt hour
pos_acc_max	number	optional	GNSS: worst position accuracy, m
ttff_max	number	optional	GNSS: worst cold TTFF, s
channels_min	number	optional	GNSS: min channels
constellation	string	optional	GNSS: required constellation GPS\|Galileo\|GLONASS\|BeiDou
outpow_min_w	number	optional	EPS: min total output power, W
capacity_min_u	number	optional	deployer: min capacity, U (your satellite size)
paymass_min_g	number	optional	platforms / deployers / separation systems: payload or satellite mass that must fit, grams
conductance_min_wk	number	optional	thermal strap: min conductance, W/K
gain_min_dbi	number	optional	antenna: min gain, dBi
beam_max_deg	number	optional	antenna: max beamwidth, deg
polarization	string	optional	antenna: RHCP\|LHCP\|linear\|circular
gsd_max_m	number	optional	camera: worst ground sample distance, m
swath_min_km	number	optional	camera: min swath width, km
mpx_min	number	optional	camera: min sensor resolution, Mpx
bands_min	number	optional	camera: min spectral bands
form_u	number	optional	structures / platforms: CubeSat size, U (exact match)
material	string	optional	structure: alloy, e.g. Al 7075
dish_min_m	number	optional	ground station: min antenna diameter, m
gt_min_dbk	number	optional	ground station: min G/T, dB/K
eirp_min_dbw	number	optional	ground station: min EIRP, dBW
slip_min_ch	number	optional	SADM: min slip-ring channels
ptrans_min_w	number	optional	SADM: min power transfer, W
volume_min_l	number	optional	tank/valve: min volume, L
meop_min_bar	number	optional	tank/valve: min operating pressure, bar
media	string	optional	tank/valve: propellant/media, e.g. xenon, hydrazine
preload_min_kn	number	optional	separation: min preload/holding force, kN
reltime_max_ms	number	optional	separation: max release time, ms
shock_max_g	number	optional	separation: max release shock, g
range_min_deg	number	optional	pointing: min travel range, deg
res_max_deg	number	optional	pointing: max angular resolution, deg
tid_min	number	optional	any category: min radiation tolerance TID, krad
accuracy_max	number	optional	star trackers: worst acceptable cross-boresight accuracy, arcsec
update_min	number	optional	star trackers: min update rate, Hz
sun_excl_max	number	optional	star trackers: max acceptable sun exclusion angle, deg
acq_max	number	optional	star trackers: max lost-in-space acquisition time, s
mass_max	number	optional	max unit mass, grams
mass_min	number	optional	min unit mass, grams (rare: "heavier than")
capacity_max_wh	number	optional	batteries: max capacity, Wh
fov_min_deg	number	optional	sun sensors / star trackers / cameras: min field of view, deg
thrust_max_mn	number	optional	propulsion: max thrust, mN
paypower_min_w	number	optional	platforms: min orbit-average power available to the payload, W
buspower_min_w	number	optional	platforms: min orbit-average power generation, W
payvol_min_u	number	optional	platforms: min volume for the payload, U
payvol_min_l	number	optional	platforms: min volume for the payload, litres
battery_min_wh	number	optional	platforms: min battery capacity, Wh
pointacc_max_deg	number	optional	platforms / pointing mechanisms / ground stations: worst acceptable pointing accuracy, deg (30 arcsec = 0.0083)
dv_min_ms	number	optional	platforms / propulsion: min delta-v, m/s
life_min_y	number	optional	any category: min design life in orbit, years
orbit	string	optional	platforms: orbit the bus is designed for — LEO \| SSO \| VLEO \| MEO \| GEO \| HEO \| lunar \| deep space (LEO, SSO and VLEO pass each other)
link_band	string	optional	platforms: radio band of the bus — UHF \| VHF \| L \| S \| X \| Ku \| Ka \| optical
exclude_country	string	optional	countries or a region to EXCLUDE — "China", "Russia, Belarus", "Asia" (for "not Chinese", "non-US")
exclude_company	string	optional	manufacturer names to EXCLUDE, comma-separated (for "not from Sodern")
test	string	optional	test-facilities: kinds of test the lab must ALL offer, comma-separated — vibration, shock, thermal-vacuum, thermal, emc, radiation, acoustic, magnetic, rf-antenna, mass-properties, outgassing, optical
shaker_min_kn	number	optional	test-facilities: min shaker force, kN
tvac_min_m	number	optional	test-facilities: min usable inner size (diameter or smallest side) of the thermal-vacuum chamber, m
specimen_min_kg	number	optional	test-facilities: mass of your test article the lab must take, kg
emc_min_m	number	optional	test-facilities: min test-article size the EMC / anechoic chamber takes, m
power_max	number	optional	max steady-state power, W (peak/regenerative not counted)
bus_v	number	optional	your power bus voltage, V — the unit must accept it
lead_max	number	optional	max lead time, months
data_if	string	optional	required data interface: CAN, RS-422, RS-485, SpaceWire, I2C, SPI, UART, MIL-STD-1553
price_max_eur	number	optional	max indicative price, EUR (few vendors publish it — expect group C)
export	string	optional	required export status: ITAR-free \| EAR99 \| ITAR
limit	integer	optional	items of groups B and C to return (default 10, max 50); group A comes in full up to 25
group	string	optional	page through one group only — use with offset from paging.next
offset	integer	optional	start position inside the group (paging.next.offset of the previous answer)
flight_proven	boolean	optional	any category: true = only products with stated flight heritage (missions flown, heritage text or TRL 9)

product	string	optional	product name (e.g. "RW210", "ST200 star tracker")
product_id	integer	optional	product id, instead of the name
tolerance_pct	number	optional	allowed deviation from the original, % (default 20, 5–50)
country	string	optional	optional manufacturer country or region

category	string	required	component class, e.g. platforms, star-trackers, reaction-wheels (see match_components)
country	string	optional	English country or region (China, Germany, Europe)
exclude_country	string	optional	countries or a region to EXCLUDE (China, Asia)
exclude_company	string	optional	manufacturer names to EXCLUDE, comma-separated
orbit	string	optional	platforms: LEO \| SSO \| MEO \| GEO \| lunar
prop_type	string	optional	platforms: electric \| chemical \| any; propulsion: electric \| chemical \| cold-gas \| water
flight_proven	boolean	optional	only flight-proven products
paymass_min_g	number	optional	platforms: payload mass that must fit, g
paypower_min_w	number	optional	platforms: orbit-average power for the payload, W
accuracy_max	number	optional	star trackers: cross-boresight accuracy, arcsec
momentum_min	number	optional	reaction wheels: momentum, N·m·s
mass_max	number	optional	max unit mass, g
bus_v	number	optional	bus voltage the unit must accept, V
data_if	string	optional	data interface: CAN, RS-422, SpaceWire…
export	string	optional	ITAR-free \| EAR99 \| ITAR

category	string	optional	component class — ONE per call; for several classes call once per class (default reaction-wheels)
confidence	string	optional	pass L1 to get only human-verified rows
ids	array	optional	only these product ids (from match_components)
keys	array	optional	only these properties (prop_key values from properties), e.g. ["mass_g","momentum_nms"]
limit	integer	optional	products per call (default 10, max 60)
offset	integer	optional	continue from paging.next_offset

io.github.newspacemarket-com/mrd

io.github.newspacemarket-com/mrd — MCP Server

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

Topics

explain_properties

match_components

find_alternatives

selection_guide

find_suppliers

build_budget

get_component_specs

get_datasheet_digest

search_datasheet_facts

ask_datasheet

design_stack

find_data_gaps

ask_console

check_fit

MRD — machine-readable datasheets for spacecraft components

Use it from an AI assistant (MCP)

Where it is listed

Use it from code

Download the data

How the data is built

Licence

Links

Install

Configuration

Related servers

items	array	required	components of the stack
bus_v	number	optional	power bus voltage, V — each item is checked against its supply range

q	string	required	the task, e.g. "6U CubeSat bus on 12 V with S-band radio and GNSS, star tracker better than 10 arcsec"
fixed	array	optional	product ids to keep (locked parts)