Enterprise API

The Only Enterprise Grade Sports Card & Trading Card API

Skip months of data collection and focus on building your product. Get comprehensive sports and trading card data that helps you bootstrap your startup and reach market faster.

99.9%
Uptime
Real-time
Data
38+
Card Categories
3.5M+
Cards Analyzed
40M+
Weekly Sales

Built for Developers

Everything you need to build trading card applications, from pricing data to computer vision.

💰

Real-Time Pricing

Comp prices, price history, and market valuations across all major grading companies.

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Card Search

Flexible text search, AI-powered card matching, and certificate lookups across 3.5M+ cards.

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Computer Vision

Image search and card identification in under 1 second. Supports PSA, BGS, SGC, and CGC slabs.

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Market Analytics

Top movers, price trends, and market data to power trading decisions and analytics dashboards.

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AI Agent Ready

OpenAPI 3.0 spec, MCP endpoint, and tool definitions for Claude, GPTs, LangChain, and more.

Enterprise Scale

Async-first architecture, Redis caching, and multi-worker deployment for high-throughput workloads.

38+ Categories

Sports cards, trading card games, and pop culture collectibles.

Baseball Football Basketball Hockey Soccer Golf Racing Wrestling UFC / MMA Boxing Tennis Pokemon Yu-Gi-Oh! Magic: The Gathering Dragon Ball One Piece Lorcana Star Wars Marvel DC Garbage Pail Kids F1 Non-Sport and more...

Integration Resources

Everything you need to get started quickly.

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OpenAPI 3.0 Spec

Full interactive API reference with examples and schemas.

View Docs →
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OpenAPI JSON

Machine-readable spec for code generation and AI agents.

Download Spec →
🛡️

API Key Auth

Simple X-API-Key header authentication with tier-based access.

Get Access →
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MCP Server

Connect Claude, GPTs, and AI agents directly to Card Hedge data via MCP.

MCP Setup Guide →

Health Check

Monitor API availability with the healthz endpoint.

Check Status →
⚡ Pay-Per-Call · No Account, No Key

An API Your AI Agents Can Pay For Themselves

Autonomous agents call our data endpoints and pay per request over x402 — USDC on Base, settled through Stripe. No signup, no API key, no pre-funded balance: the payment protocol carries identity and funds.

agent → api.cardhedger.com
POST /v1/agent/cards/prices-by-cert
← 402 Payment Required       # PAYMENT-REQUIRED: <x402 challenge>
pay 0.01 USDC on Base, retry    # X-PAYMENT: <signed authorization>
← 200 OK + data + receipt      # PAYMENT-RESPONSE: <on-chain tx>
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Agent API Docs

Interactive reference scoped to the agent endpoints only.

Open Agent Docs →
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Pricing Manifest

Machine-readable JSON: every endpoint, price, and active rail. No auth.

GET /v1/agent/pricing →
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Agent MCP Server

Native MCP server speaking the x402 payment binding. No key to connect.

/mcp/agent →
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llms.txt

Start here if you are an agent — the discovery index for all of the above.

/llms.txt →

Autonomous agents: begin at /llms.txt, discover prices at /v1/agent/pricing, then call any /v1/agent/* endpoint and settle the 402 over x402. 20 endpoints from $0.01 per call.