What can you build with a TCG pricing API?
Storefronts that reprice themselves, buylist tools that quote fairly, collection trackers, market dashboards, deal finders, graded valuation, and agents that actually know what a card is worth. Each one below names the endpoints it needs, so you can size the work before you write any code.
- Retail & buylist
- Collections
- Market analysis
- AI agents
What people build with a TCG pricing API
Each of these is a real integration path, with the endpoints it leans on named up front so you can size the work before you write any code.
Storefront repricing
Keep an online TCG store's listings in step with the market. Pull your catalogue in batches, apply your own margin rules per condition and printing, and write the results back on a schedule.
- POST /cards
- condition + printing variants
Inventory and buylist tooling
Value what is sitting in the case, and decide what to pay for what walks in the door. Blended in-store sale data matters most here: buylist offers anchored to asking prices leave money on the counter.
- POST /cards
- in-store blended pricing
Collection trackers
Let people log what they own and watch it move. Store stable card and variant UUIDs, refresh prices on a cadence that fits your plan, and show 24h, 7d, 30d and 90d change without keeping your own history.
- GET /cards
- priceChange windows
- stable UUIDs
Market dashboards
Chart a set, a rarity, or a single chase card over time. Trend slope, standard deviation and interquartile range come back on the variant, so the analytics are already computed before you draw anything.
- priceHistory
- trendSlope
- stddev / IQR
Deal finders and arbitrage tools
Scan a set ordered by price or by movement, compare against what you can source, and alert on the gaps. Higher tiers exist precisely for this: the per-minute limit is usually what bounds a scanner.
- GET /cards search
- orderBy price / 24h / 7d
Graded card valuation
Price PSA, BGS and CGC copies next to their raw equivalents to work out what a grade is worth on a given card. Graded copies arrive as ordinary variants, so a raw-versus-slab comparison is one response.
- v2 graded variants
- grading_company + grade
AI agents that know card prices
Hand an assistant live pricing instead of a stale training set. The hosted MCP server exposes games, sets and card lookups as tools, so an agent can appraise a binder photo or answer a valuation question.
- MCP server
- GET /cards
Regional storefronts
Selling into more than one market? Read the per-region markets array so a shopper in another country sees a price observed in their market, not a US price run through a currency conversion.
- v2 markets array
Built into real TCG businesses
Discover how shops, collectors, and developers use our API to transform their TCG operations.
TCG Shop Owner
Automated inventory pricing
Consistent market updates
Keep your online inventory prices competitive with automatic updates every 6 hours
Condition-based pricing
Accurate pricing for different card conditions and printing types
Bulk operations
Update 100 cards per call with our efficient bulk API
Advanced price analysis for collectors
Leverage our comprehensive API to build sophisticated price analysis tools. Perfect for collectors and investors looking to make data-driven decisions.
TCG Collector
Price analysis & trends
Historical data access
Historical pricing data being collected daily (30d and 90d access coming soon)
Bulk data export
Export large datasets for ML model training
Advanced analytics
Price trend visualization and prediction tools
App Developer
Mobile & web applications
RESTful API
Clean, intuitive endpoints for easy integration
SDKs & libraries
Official SDKs for popular platforms
Graded card support BETA
Graded card price tracking and analysis
What every one of these integrations looks like
However different the products are, the wiring is nearly identical. Four steps, and the third is the one that decides your bill.
- 01
Get a key and find your cards
Sign up, take the free key, then walk games and sets to map your catalogue onto JustTCG card IDs once.
Quickstart - 02
Store the stable identifiers
Persist the card and variant UUIDs, not names. Reprints and renames stop being a migration problem.
Identifiers - 03
Refresh in batches on a schedule
Batch up to 200 cards per call and run on a cadence your plan supports. This is where request budgets are won or lost.
Plan limits - 04
Read the variant that matters
Pick the condition and printing your listing actually is, and use the trend fields if you display movement.
Variant schema
Pick one and start
The free tier is enough to prototype any of these. 1,000 requests a month, no credit card, the same data every paid plan reads.
Compare TCG API pricing and rate limits, browse every JustTCG API feature, or read the code examples.