Circle and Proof Show USDC Payments on October 19: What It Means for USDC price

Published on 10/24/2026 at 07:10 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

The demo combines 2 protocols for identity and payment in agent checkout. The USDC price is 1.0010 USD on October 24, 2026.

Agent payments and regulatory dates

On October 19, Proof and Circle demonstrated an agent checkout using USDC.
Allium measured adjusted USDC onchain supply at 69.62 billion USD on October 12, 2026.
The USDC price stands at 1.0010 USD as of October 24, 2026, at the dollar target.
Dual supervision for significant USDC oversight begins on November 12, 2026.

USDC, XCRYPTOUSDC0, Illustration mit AI erstellt.

USDC (USDC) featured in a Proof and Circle demonstration of an identity-gated agent purchase on October 19, 2026, with payment settled in USDC. According to Proof, the flow combines its x401 identity protocol with Circle's x402 payment protocol and a Circle Agent Wallet.

Proof and Circle connect 2 agent protocols

The demonstration uses x401, which lets a merchant request specific identity information, and x402, which lets the merchant request payment through the web's HTTP 402 response. The agent presents a verified Proof credential and a signed approval for the purchase, then pays the merchant in USDC. The merchant can verify the credential signature against Proof's published keys without receiving a complete identity document, according to Proof.

The companies presented the use case at Money20/20 in Las Vegas from October 19 through October 21, 2026. The stated transaction model separates identity authorization from payment settlement while keeping both steps inside an automated checkout, according to Market Chameleon.

USDC supply reached 69.62 billion USD on October 12

Allium measured USDC's adjusted onchain circulating supply at 69.62 billion USD on October 12, 2026. The adjusted method identifies native issuance and bridged representations so that copies used across chains are not counted as separate dollars. The figure made USDC the second-largest stablecoin by adjusted onchain supply in that snapshot, according to Allium.

The same analysis identifies a measurement risk: raw and adjusted supply can differ when bridged representations are included. Allium also describes reserve quality and counterparty exposure as risks relevant to fiat-backed stablecoins, which means onchain supply alone does not describe every part of the redemption structure, according to Allium.

European oversight has a scheduled date. The European Banking Authority classified USDC as the first significant e-money token among 45 e-money tokens notified under the Markets in Crypto-Assets Regulation on October 14, 2026. The EBA said direct supervision of own funds, reserve assets, liquidity requirements, and recovery and redemption plans begins on November 12, 2026, according to the European Banking Authority.

USDC trades at 1.0010 USD on October 24

The USDC price stands at 1.0010 USD as of October 24, 2026. Investing.com shows a daily high of 1.0010 USD and a daily low of 1.0009 USD for the UTC day, with a market capitalization of 72.15 billion USD and a market-cap rank of 6. Its 24-hour volume is 14.05 billion USD and circulating supply is 72.16 billion USDC, according to Investing.com.