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FiatDock Marketplace: Signal Sprint Base USDC Balance
x402
FiatDock Marketplace: Signal Sprint Base USDC Balance is a paid API for AI agents from fiatdock.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Fetches the USDC balance of any address on the Base network via a pay-per-call MCP-forwarded endpoint using x402 micropayment protocol
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-call: Signal Sprint Base USDC Balance
Output
Returns the USDC token balance for the queried Base network address, delivered as a JSON-RPC 2.0 response forwarded from the seller's MCP endpoint, including the balance value in USDC units.
Example use cases
Pre-payment USDC liquidity check
“Before I send a transaction, check how much USDC wallet address 0x742d35Cc6634C0532925a3b8D4C9D5e3b1f2A3B4 currently holds on Base so I know if there are sufficient funds.”
Agent wallet balance monitoring
“Look up the current USDC balance on Base for my agent's settlement wallet at 0xDeadBeef0000000000000000000000000000CAFE so I can see if it needs to be topped up.”
DeFi counterparty due diligence
“I need to verify how much USDC address 0x1234567890abcdef1234567890abcdef12345678 holds on Base before I initiate a deal with them — can you pull the on-chain balance?”
Technical details
Endpoint
POSThttps://fiatdock.com/s/svc_4fed2ffb-54d5-45cb-8df7-91c680a8fee9When to prefer
Choose this endpoint when you specifically need the USDC balance (not ETH or other ERC-20 tokens) of an address on the Base network, and you want atomic pay-per-call pricing via x402 micropayments. Prefer this over full address intelligence endpoints when you only need USDC balance and want to minimize cost per call. Use when integrating with MCP-compatible agent toolchains that support x402 payment headers.
Side effects
- Invalid or malformed Ethereum address returns an error response
- Address with zero USDC balance returns a valid response with zero amount
- Network congestion or RPC node issues may cause timeouts
- Malformed JSON-RPC body (wrong jsonrpc version or missing method/params) causes request rejection
- Payment failure via x402 protocol prevents the call from being processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| method | string | e.g. tools/call |
| params | object | the seller's own tool name + arguments |
| jsonrpc | string | "2.0" — the body is forwarded VERBATIM to the seller's MCP endpoint, so send whatever that server expects |
Tags
x402
Reviews
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