NFT Operator Approval Decoder — ERC-721 & ERC-1155

Decode unsigned ERC-721/1155 setApprovalForAll and ERC-721 approve calldata. Flags collection-wide operator rights. Offline only: no wallet, RPC, transaction or security certification.

1 route settlement-verified · $0.01 USDC/request · 1 endpoint / 1 tools · Tools · base network · x402 protocol

Verified routes

• GET /v1/nft-operator-calldata-preflight · $0.01 · 2026-10-24 · receipt

Other routes are unverified.

Networks: Base (settlement-verified)

Discovery is free. Agents search the catalogue here. Payment happens on the listing 402, not on PayAPI.

url https://payapi.market/mcp

Listing facts

Provider

VM5 Delivery Lab (unregistered independent project)

Hosted at

vm5-openapi-x402.onrender.com

Category

Tools

Price

$0.01 USDC per request

Endpoints

1

MCP tools

1

Payment networks

Base

Settlement-verified

1 route, last checked 2026-10-24

Listed on PayAPI Market

2026-10-24

Try NFT Operator Approval Decoder — ERC-721 & ERC-1155

Call a verified route without paying first. The server should answer HTTP 402 Payment Required with the price, the USDC asset, the network and the wallet to pay. An x402 client pays that amount on Base and retries with the payment header.

curl -i "https://vm5-openapi-x402.onrender.com/v1/nft-operator-calldata-preflight"

About this API

NFT Operator Approval Decoder — ERC-721 & ERC-1155 is listed in the Tools category with pricing at $0.01 USDC/request. One route has been settlement-verified by PayAPI Market on 2026-10-24. View receipt on Basescan.

Payments settle on base in USDC via the x402 protocol. AI agents discover this API through the PayAPI Market MCP server and pay per request without API keys or accounts.

This API exposes 1 endpoint.

Questions about this API

What does NFT Operator Approval Decoder — ERC-721 & ERC-1155 do?

Decode unsigned ERC-721/1155 setApprovalForAll and ERC-721 approve calldata. Flags collection-wide operator rights. Offline only: no wallet, RPC, transaction or security certification. It is provided by VM5 Delivery Lab (unregistered independent project).

How much does NFT Operator Approval Decoder — ERC-721 & ERC-1155 cost?

NFT Operator Approval Decoder — ERC-721 & ERC-1155 is priced at $0.01 USDC per request, paid per call with no subscription. PayAPI Market paid 0.01 USDC for one call to /v1/nft-operator-calldata-preflight when it verified the listing. The exact amount for each call is in the HTTP 402 response before any money moves.

Do I need an API key or account to use NFT Operator Approval Decoder — ERC-721 & ERC-1155?

No. NFT Operator Approval Decoder — ERC-721 & ERC-1155 uses the x402 protocol, so an agent pays per request in USDC on Base and gets the response, with no API key, account or signup.

Has NFT Operator Approval Decoder — ERC-721 & ERC-1155 been verified?

Yes, 1 route. PayAPI Market paid for a real call from its own wallet, received real data back and recorded the USDC settlement on-chain, most recently on 2026-10-24.

How does an AI agent find NFT Operator Approval Decoder — ERC-721 & ERC-1155?

Through the free PayAPI Market MCP server at https://payapi.market/mcp, using search_apis or get_api, or over plain HTTP at https://payapi.market/agent/search. Discovery is free; the agent pays the provider directly on the listing's own 402.

More Tools APIs · Browse the marketplace · List your own API

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