MySlabs Scraper — Graded Sports Card & Pokemon Slab Marketplace

Extract sold comps and active listings from MySlabs.com, the largest multi-grader peer-to-peer graded-slab marketplace. Covers PSA, BGS, SGC, CGC, TAG, and HGA slabs across sports cards, Pokemon, and other collectibles.

What you get

Each record includes:

Field	Description
slab_id	MySlabs internal numeric ID
listing_url	Canonical listing URL
title	Full listing title (YEAR SET #CARD_NO PLAYER GRADE_LABEL)
grader	Grading company (PSA, BGS, SGC, CGC, TAG, HGA)
grade	Grade label as displayed (e.g. "PSA 10 GEM MINT")
grade_numeric	Parsed numeric grade (e.g. 10, 9.5)
year	Card year (extracted from title)
card_number	Card number within the set, when the title states it
listing_status	sold, active, ended, or pulled
sale_price	Final sale price in USD (sold listings)
asking_price	Current asking price in USD (active listings)
sold_at	Sale date / timestamp string
description	Seller description text
watchers_count	Number of watchers / trackers
image_urls	Array of full-resolution slab image URLs
scrapedAt	When this record was delivered to you (ISO 8601)

Three scraping modes

archive — Sold comps (default)

Walks the sold archive at /browse/archive/. Over 150,000 sold listings, growing ~50/day. Use this mode to pull historical sale prices for comparables research.

Optional filters:

• query — keyword search (player name, set, card number)
• sport — filter by sport or category keyword (baseball, basketball, pokemon)
• grader — filter by grading company

active — Current listings

Walks active listings at /browse/. Same data shape as archive mode but for slabs currently on sale.

slab — Single slab lookup

Fetch one or more specific slabs by ID or URL. Pass bare numeric IDs or full /slab/view/<id>/ URLs in slabIds.

{
  "mode": "slab",
  "slabIds": ["1545016", "1500000"]
}

Input parameters

Parameter	Type	Default	Description
mode	string	archive	Scrape mode: archive, active, or slab
query	string	—	Keyword search (player, set, card number)
sport	string	—	Sport / category filter keyword
grader	string	—	Grader filter: PSA, BGS, SGC, CGC, TAG, HGA
slabIds	array	—	Slab IDs or URLs (mode=slab only)
maxItems	integer	10	Maximum records to return. 0 for unlimited.

Example inputs

Sold comps for Michael Jordan PSA cards:

{
  "mode": "archive",
  "query": "Michael Jordan",
  "grader": "PSA",
  "maxItems": 100
}

Active Pokemon listings:

{
  "mode": "active",
  "sport": "pokemon",
  "maxItems": 50
}

Full archive crawl (unlimited):

{
  "mode": "archive",
  "maxItems": 0
}

Dataset views

Two pre-configured views are available on the output dataset:

• Sold Comps — title, year, card_number, grader, grade, sale_price, sold_at, listing_url
• Full Slab Detail — all fields including sub-grades, watchers, images

Notes

• Seller usernames and cert numbers are behind a login wall on MySlabs and are not available without authentication.
• BGS sub-grades (centering/corners/edges/surface) are included when a seller states them in the listing text; most listings don't, so this field is populated on a minority of BGS cards.
• Images are sourced from the LD+JSON Product schema for full resolution; the listing thumbnail is used as a fallback.
• MySlabs is bot-protected and challenges most automated tools; this actor gets through reliably.
• The archive contains 150k+ sold listings. Full crawls at maxItems: 0 will take several hours and consume significant compute units. Use query filters to narrow the scope for comp research.