GET /api/v1/paid/base-usdc-balance — $0.003 per call

Use when an agent needs base usdc balance. Returns Check a Base wallet’s USDC balance on the canonical Base USDC contract and return structured JSON with atomic and formatted values. $0.003.

Price	$0.003 per call (3000 atomic USDC, scheme exact)
Category	chain-data
Rails	x402 · USDC on Base (eip155:8453) and Solana · MPP pathUSD on Tempo
Canonical URL	https://api.oblique.markets/api/v1/paid/base-usdc-balance

Try it

curl -i https://api.oblique.markets/api/v1/paid/base-usdc-balance
# → HTTP 402 with the exact payment requirements; pay, then retry with PAYMENT-SIGNATURE (x402) or Authorization: Payment (MPP)

Input schema

{
 "type": "object",
 "properties": {
  "address": {
   "type": "string",
   "description": "EVM address, 0x-prefixed 40 hex chars",
   "pattern": "^0x[0-9a-fA-F]{40}$"
  }
 },
 "required": [
  "address"
 ]
}

Example output

{
 "address": "0x4200000000000000000000000000000000000006",
 "balance_atomic": "1523400000",
 "balance_usdc": "1523.400000",
 "as_of": "2026-08-10T12:00:00.000Z"
}

Clients

Worked TypeScript/Python clients and MCP configs: oblique-markets/oblique-examples · Agent Skills: oblique-markets/skills

Pay per call with x402 (USDC on Base or Solana) or MPP (pathUSD on Tempo). No accounts. Machine doors: /.well-known/x402.json · /openapi.json · /llms-full.txt · MCP · humans: remote.observer