---
title: "USDC & EURC Supply and Control"
method: GET
path: "/api/x402/v1/stablecoins"
tags: ["stablecoins", "usdc", "eurc", "circle", "on-chain"]
---

# USDC & EURC Supply and Control

`GET /api/x402/v1/stablecoins`

## Request

- Base URL: `https://www.blockchainiq.co`
- URL: `https://www.blockchainiq.co/api/x402/v1/stablecoins`
- Auth: none declared

Parameter-free Circle USDC and EURC snapshot on Ethereum, Base and Arbitrum from the token contracts: total supply, 1/7/30-day supply change, 7-day net issuance split CCTP / Gateway / other minters, mint and burn counts, paused flag, implementation and last upgrade, role holders, blacklist count and 30-day changes, last control event. Use to watch stablecoin supply and freeze risk. Refreshed daily; never sold stale. JSON, no API key. $0.01 per call. Blockchain IQ.

## Response `200`

Circle USDC and EURC snapshot — JSON envelope with source, disclaimer, terms and data (A list of { chain, token, contract, asOfDay, asOfBlock, asOfTime, totalSupply, supplyChange { d1, d7, d30 }, netIssuance7d { cctpV1, cctpV2, gateway, unlabelled }, completeDays7d, mints7d, burns7d, paused, implementation, lastUpgradeAt, roles, blacklist { current, complete, adds30d, removes30d }, lastControlEvent, historyFrom, openGaps, refreshedAt } (plus top-level count and classes). Amounts are token units: USDC in dollars, EURC in euros. A 503 means the data is more than 36 hours old or missing; you were not charged.).

- object

## Other responses

- `402`: Payment Required

---

[API](https://skmtc.dev/blockchainiq/apis/blockchain-iq-x402-api.md) · [All operations](https://skmtc.dev/blockchainiq/apis/blockchain-iq-x402-api/llms.txt) · [OpenAPI document](https://skmtc.dev/blockchainiq/apis/blockchain-iq-x402-api/revisions/b821ab4f9fdd?raw)