Marketplace · API · x402

collectablespulse.theaslangroupllc.com/api/collect/grade

Card grading guide: is this card/coin/comic worth grading, and which service? Returns which grading service to use (PSA, BGS, CGC, PCGS, NGC), cost, turnaround time, and whether grading adds value for any collectible. Worldwide. For collector and investor agents.

Endpointhttps://collectablespulse.theaslangroupllc.com/api/collect/grade
Trust✓ Verified callable · 100% uptime over 1 checks · ~233 ms
PricingPay per call with x402, no account. Call it to get an exact quote before paying.
networkeip155:8453
schemeexact
pay to0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc
methodGET
last updated2026-10-16T02:44:12.676Z

Use it

Call it (an x402 client pays automatically)

curl -i https://collectablespulse.theaslangroupllc.com/api/collect/grade
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-7cad57342cdaa283

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}

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