Partsgraph.ai

Partsgraph demo catalogue

Real parts from real vendors, published agent-readable: provenance-backed attributes, Product JSON-LD, markdown mirrors, a machine feed and a live MCP endpoint. Prices are indicative and dated; availability is never claimed.

• Whole catalogue in one fetch: https://partsgraph.ai/catalog/feed.json
• MCP endpoint (Streamable HTTP, no auth): https://partsgraph.ai/api/mcp
• Connect guide: https://partsgraph.ai/connect

Reference builds

• 2WD explorer robot: https://partsgraph.ai/catalog/builds/2wd-robot/md — A two-wheel differential-drive robot that avoids obstacles: the classic first build, specified entirely from machine-readable part records.
• Automatic plant waterer: https://partsgraph.ai/catalog/builds/plant-waterer/md — Soil-moisture-triggered watering with a level-checked reservoir - and it shares its controller platform with the weather station on purpose.
• Solar weather station: https://partsgraph.ai/catalog/builds/weather-station/md — An off-grid station measuring temperature, humidity, pressure, light, wind and rain - solar charged, in a weatherproof enclosure.

Parts

• Lithium-ion polymer battery 3.7V 2500mAh (Adafruit 328) — 14.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-lipo-2500/md
• 4 x AA battery holder with on/off switch (Adafruit 830) — 2.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-4xaa-holder/md
• Premium female/male jumper wires 40 x 150mm (Adafruit 826) — 3.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-jumper-fm/md
• Premium male/male jumper wires 40 x 150mm (Adafruit 758) — 3.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-jumper-mm/md
• Qwiic / STEMMA QT cable kit (SparkFun KIT-15081) — 12.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/sparkfun-qwiic-cable-kit/md
• Ball caster 3/8 inch metal ball (Pololu 951) — 2.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/pololu-ball-caster-38/md
• Universal USB / DC / solar LiPo charger bq24074 (Adafruit 4755) — 14.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-bq24074-solar/md
• Mini 3-layer round robot chassis kit (2WD) (Adafruit 3244) — 24.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-3layer-chassis/md
• ESP32-S3 Feather (8MB Flash / 2MB PSRAM) (Adafruit 5323) — 17.5 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-esp32-s3-feather/md
• Raspberry Pi Pico 2 W (Raspberry Pi SC1634) — 6.7 GBP indicative (2026-08-22): https://partsgraph.ai/catalog/parts/rpi-pico-2-w/md
• Monochrome 0.96in 128x64 OLED display (SSD1306) (Adafruit 326) — 17.5 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-ssd1306-oled/md
• Ultrasonic distance sensor HC-SR04 (SparkFun SEN-15569) — 5.25 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/sparkfun-hc-sr04/md
• VL53L0X time-of-flight distance sensor breakout (Adafruit 3317) — 14.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-vl53l0x/md
• Watertight polycarbonate enclosure 1554 series (Hammond 1554WB2GY): https://partsgraph.ai/catalog/parts/hammond-1554wb2gy/md
• BME280 breakout (Pimoroni) (Pimoroni PIM472) — 13.8 GBP indicative (2026-08-22): https://partsgraph.ai/catalog/parts/pimoroni-bme280/md
• BME280 temperature / humidity / pressure breakout (Adafruit 2652) — 14.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-bme280/md
• Black nylon M2.5 screw / standoff kit (Adafruit 3299) — 16.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-standoff-kit/md
• Micro metal gearmotor bracket extended pair (Pololu 989) — 2.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/pololu-n20-bracket/md
• Optomax digital liquid level sensor (Adafruit 3397) — 39.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-float-switch/md
• MPU-6050 6-DoF accel + gyro breakout (Adafruit 3886) — 12.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-mpu6050/md
• VEML7700 ambient light sensor breakout (Adafruit 4162) — 4.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-veml7700/md
• N-channel power MOSFET IRLB8721 (Adafruit 355) — 2.25 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-irlb8721/md
• 150:1 micro metal gearmotor MP 6V (Pololu 2361) — 23.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/pololu-n20-150-mp6v/md
• TT DC gearbox motor 200RPM 3-6V (Adafruit 3777) — 2.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-tt-motor/md
• DRV8833 dual motor driver carrier (Pololu 2130) — 10.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/pololu-drv8833-carrier/md
• 5V 500mA step-down regulator D24V5F5 (Pololu 2843) — 8.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/pololu-5v-reg-d24v5f5/md
• Half-size breadboard (Adafruit 64) — 4.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-half-breadboard/md
• Submersible 3V DC water pump (vertical) (Adafruit 4547) — 2.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-submersible-pump/md
• STEMMA capacitive soil moisture sensor (I2C) (Adafruit 4026) — 7.5 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-stemma-soil/md
• Solar panel 6V 2W (Adafruit 200) — 34 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-solar-6v2w/md
• Breadboard-friendly SPDT slide switch (Adafruit 805) — 0.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-slide-switch/md
• Tubing for submersible pumps, PVC 6mm ID, 1m (Adafruit 4545) — 1.5 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-silicone-tubing/md
• Weather meter kit (anemometer, vane, rain gauge) (SparkFun SEN-15901) — 79.95 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/sparkfun-weather-meters/md
• Orange & clear TT motor wheel (Adafruit 3766) — 1.5 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/adafruit-tt-wheel/md
• Wheel 32x7mm pair (for 3mm D shaft) (Pololu 1087) — 4.45 USD indicative (2026-08-22): https://partsgraph.ai/catalog/parts/pololu-wheel-32x7/md

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