uscc_cn_validate $0.001 per call
Offline validator for China's Unified Social Credit Code (统一社会信用代码, 18 characters). Verifies the ISO 7064-derived weighted checksum over the 31-character alphabet (0-9, A-Z excluding I,O,S,V,Z), then decodes the registering-authority code, entity-type code, region code and sequence code per GB 32100-2015.
For AI agents: call uscc_cn_validate
POST https://toll402.dev/v1/t/uscc_cn_validate
{
"code": "91110108551385082Q"
}Answers 402 with x402 payment requirements; pay with any x402 client (@x402/fetch, x402 for Python, toll402-client, toll402-mcp) or send a prepaid-credits key as x-toll402-key (https://toll402.dev/credits). Paid per call via x402 (USDC on Base) or with a prepaid-credits key (x-toll402-key, card at /credits); charged only on success. Start at /llms.txt or connect the MCP server:
npx -y toll402-mcp · remote https://toll402.dev/mcp.Input schema
{
"type": "object",
"properties": {
"code": {
"type": "string",
"description": "18-character Unified Social Credit Code"
}
},
"required": [
"code"
]
}
MCP
{"mcpServers":{"toll402":{"command":"npx","args":["-y","toll402-mcp"],"env":{"TOLL402_WALLET_KEY":"0x..."}}}}