USDC & EURC Issuance History

Analyst-verified crypto research for individual investors — without the institutional price tag.

SearchLiveeip155:8453Exactvia cdp
StablecoinsUsdcEurcIssuanceHistory
Calls · 30d
3
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 snapshots so far.
$4.23
Verified settled volume
95 settlements proven x402 by their on-chain EIP-3009 marker.
$0.020
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-10-25 09:30Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x617dA9383fbA67e86137BC4924b8b7E400fB7C9e

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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required. Pay the PAYMENT-REQUIRED header with an x402 client and retry.",
  "price": "$0.01",
  "catalog": "https://www.blockchainiq.co/api/x402/v1"
}

Accepts

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

0.02USDC≈ $0.02 USD
on Base · exact scheme

Pay 0.02 USDC on Base to 0x617d…B7C9e. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
20000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x617dA9383fbA67e86137BC4924b8b7E400fB7C9e",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "days": 30,
          "chain": "base",
          "token": "USDC"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "to": "2026-10-16",
            "days": [
              {
                "day": "2026-10-16",
                "burns": 140813112.168918,
                "mints": 153593793.069789,
                "paused": false,
                "endBlock": 52702926,
                "burnEvents": 3532,
                "mintEvents": 4367,
                "netIssuance": {
                  "cctpV1": 28563433.0345,
                  "cctpV2": 18686506.757688,
                  "gateway": 3978104.508683,
                  "unlabelled": -38447363.4
                },
                "totalSupply": 4404196677.184259,
                "supplyChange": 12780680.900871,
                "blacklistAdds": 0,
                "controlEvents": 5,
                "blacklistRemoves": 0
              }
            ],
            "from": "2026-10-16",
            "gaps": [],
            "chain": "base",
            "token": "USDC",
            "contract": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
            "requestedDays": 1
          },
          "count": 1,
          "terms": "https://www.blockchainiq.co/terms",
          "source": "Blockchain IQ",
          "classes": "netIssuance is mints minus burns by verified minter class: cctpV1 and cctpV2 are Circle's Cross-Chain Transfer Protocol token minters (USDC moving between chains), gateway is Circle Gateway, and unlabelled is every other minter or burner, meaning not CCTP or Gateway (it is not a claim that the address is Circle's). Classes come from Circle's published contract addresses only. Amounts are token units: USDC in dollars, EURC in euros as minted (no FX conversion).",
          "gapCount": 0,
          "disclaimer": "Market data and analysis, not investment advice."
        }
      }
    },
    "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"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {
                "days": {
                  "type": "integer",
                  "default": 30,
                  "maximum": 365,
                  "minimum": 1
                },
                "chain": {
                  "enum": [
                    "ethereum",
                    "base",
                    "arbitrum"
                  ],
                  "type": "string",
                  "default": "ethereum"
                },
                "token": {
                  "enum": [
                    "USDC",
                    "EURC"
                  ],
                  "type": "string",
                  "default": "USDC"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-25 09:30Z
Last indexed by Roundhouse
2026-10-26 17:20Z
Last enriched (probe, favicon, geo)
2026-10-18 00:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 13 snapshots so far. 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 & EURC Issuance History 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%20%26%20EURC%20Issuance%20History'
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://www.blockchainiq.co/api/x402/v1/stablecoins/history, 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.