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)
sub_grades	BGS sub-grades, when the seller states them in the title
certification_number	Certification number, when the seller wrote it in the listing next to "cert" or "serial"
year	Card year (extracted from title)
card_number	Card number within the set, when the title states it
listing_status	sold or active
sale_type	How it was listed: buy_it_now, fixed_price, auction or private_deal
sale_price	Final sale price (sold listings)
asking_price	Current asking price (active listings)
currency	Currency code of the prices (USD)
sold_at	Sale date as MySlabs displays it
sold_date	Sale date as YYYY-MM-DD
description	Seller description text
watchers_count	Page views (same number as view_count, kept under its original name)
view_count	Page views shown on the listing
tracking_count	Number of collectors tracking the listing
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: 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
• soldAfter / soldBefore — keep sales inside a date window (YYYY-MM-DD)
• sortBy — newest first (default), oldest first, price high to low, price low to high, or most viewed

active — Current listings

Same data shape as archive mode, for slabs currently on sale. Takes the same filters and sortBy.

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
sortBy	string	created_desc	created_desc, created_asc, price_desc, price_asc or view_count_desc
soldAfter	string	—	Archive only: sales on or after this date
soldBefore	string	—	Archive only: sales on or before this date
startPage	integer	1	Resume a deep pull from this result page
slabIds	array	—	Slab IDs or URLs (mode=slab only)
maxItems	integer	10	Maximum records to return. 0 for unlimited. There is no fixed per-run record cap.

Example inputs

Sold comps for Michael Jordan PSA cards:

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

The 50 highest sales of the archive:

{
  "mode": "archive",
  "sortBy": "price_desc",
  "maxItems": 50
}

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, sold_date, listing_url
• Full Slab Detail — all fields including sub-grades, sale type, view and tracking counts, images

Notes

• MySlabs does not show seller names to logged-out visitors, so they are not included. Certification numbers are not published either; the field is filled only when the seller wrote one into the listing.
• 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.
• Listings a seller has removed since the search was indexed are left out rather than returned as empty rows.
• Images are full resolution where MySlabs provides them, with the listing thumbnail as a fallback.
• 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.

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