Usdc Balance

USDC balance on Base (cycle 228, x402 $0.01) - GET ?address=<0xWALLET> OR ?sample=1 OR POST application/json {address}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. Reads the USDC balance of any address directly from the USDC contract with eth_call balanceOf. Returns the exact integer balance, the balance scaled by the token's own decimals, the symbol, the chain id and the block the read was taken at, then a usdc_balance_score 0-100 A-F with a FUNDED...

Searchoffline · HTTP 530eip155:8453Exactvia facilitator:payAI
UsdcBalanceerc20StablecoinBase
Settlements · 30d
1↓ 100%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
—
Verified settled volume
1 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xCa0a6c6Aa7A8F0D5893636CF166Ea2b44fb6500c

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0xCa0a…6500c. The signed payment is good for 1 minute.

USD Coin contract
0x8335…02913
Payment window
1 minute
As published
10000 smallest units
Buys
USDC balance on Base (cycle 228, x402 $0.01) - GET ?address=<0xWALLET> OR ?sample=1 OR POST application/json {address}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. Reads the USDC balance of any address directly from the USDC contract with eth_call balanceOf. Returns the exact integer balance, the balance scaled by the token's own decimals, the symbol, the chain id and the block the read was taken at, then a usdc_balance_score 0-100 A-F with a FUNDED...
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xCa0a6c6Aa7A8F0D5893636CF166Ea2b44fb6500c",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://otzik-38-190-144-122.run.pinggy-free.link/usdc-balance",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "sample": "1",
              "address": "0x0000000000000000000000000000000000000001"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "data": {
                "ok": true,
                "note": "The response shape for this route is declared in /openapi.json under this path.",
                "source": "live"
              },
              "path": "/usdc-balance",
              "success": true
            }
          },
          "description": "USDC balance on Base (cycle 228, x402 $0.01) - GET ?address=<0xWALLET> OR ?sample=1 OR POST application/json {address}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. Reads the USDC balance of any address directly from the USDC contract with eth_call balanceOf. Returns the exact integer balance, the balance scaled by the token's own decimals, the symbol, the chain id and the block the read was taken at, then a usdc_balance_score 0-100 A-F with a FUNDED..."
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "description": "USDC balance on Base (cycle 228, x402 $0.01) - GET ?address=<0xWALLET> OR ?sample=1 OR POST application/json {address}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. Reads the USDC balance of any address directly from the USDC contract with eth_call balanceOf. Returns the exact integer balance, the balance scaled by the token's own decimals, the symbol, the chain id and the block the read was taken at, then a usdc_balance_score 0-100 A-F with a FUNDED...",
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "sample": "1",
          "address": "0x0000000000000000000000000000000000000001"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "ok": true,
            "note": "The response shape for this route is declared in /openapi.json under this path.",
            "source": "live"
          },
          "path": "/usdc-balance",
          "success": true
        }
      },
      "description": "USDC balance on Base (cycle 228, x402 $0.01) - GET ?address=<0xWALLET> OR ?sample=1 OR POST application/json {address}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. Reads the USDC balance of any address directly from the USDC contract with eth_call balanceOf. Returns the exact integer balance, the balance scaled by the token's own decimals, the symbol, the chain id and the block the read was taken at, then a usdc_balance_score 0-100 A-F with a FUNDED..."
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-11-04 19:24Z
Last indexed by Roundhouse
2026-11-07 19:46Z
Last enriched (probe, favicon, geo)
2026-11-06 11:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 530
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Usdc Balance and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Usdc%20Balance'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://otzik-38-190-144-122.run.pinggy-free.link/usdc-balance, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.