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Blockchain Money Map Default Asset Token Amount Advisor
x402
Blockchain Money Map Default Asset Token Amount Advisor is a paid API for AI agents from api.blockchainmoneymap.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).
Validates and advises on the correct token amount to use for x402 payments given a token, network, price format, and decimals configuration
Price / call$0.01
Success—
StatusUnknown
How this service works
Advises whether an x402 route should use dollar-string pricing or explicit TokenAmount facts.
Output
A JSON response indicating whether the token amount is valid and correctly configured for the given x402 payment context, including advisory guidance on the recommended token amount based on network, token, decimals, price format, and whether default asset or explicit amounts should be used.
Example use cases
Validate USDC x402 payment amount
“I'm about to send an x402 payment on Base using USDC with 6 decimals and a price of 0.01 — can you check if my token amount of 10000 is correctly set for this configuration?”
Check default asset token amount fallback
“My x402 payment doesn't have an explicit token amount but the default asset is supported on Ethereum. Can you advise on whether the default amount is going to be correct for USDC with 6 decimals and exact price format?”
Cross-check token amount against reference facts
“I have two x402 payment setups — one using 1000000 units on Base with USDC and one using 10000 units on Ethereum — can you compare them and tell me if either has incorrect token amount configuration?”
Technical details
Endpoint
POSThttps://api.blockchainmoneymap.com/api/x402/x402-default-asset-tokenamount-advisor?utm_source=zero.xyzWhen to prefer
Use this endpoint when building x402-enabled agents that need to validate or compute the correct token amount before submitting a blockchain micropayment, especially when handling dynamic pricing, multiple networks, or tokens with non-standard decimal configurations. It is specifically designed for the x402 payment protocol context rather than general blockchain token lookups.
Side effects
- Missing required fields (network, token, price_format, token_decimals, default_asset_supported_present) returns validation error
- Invalid or unsupported token/network combination may return advisory warning
- Incorrect token_decimals relative to known token standards may trigger mismatch advisory
- Payment failure if $0.01 USDC x402 fee is not provided upfront
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| mode | — | |
| facts | object | |
| policy | object | |
| reference_facts | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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