Circle Tells Muse Users to Give Their AI Agents USDC Wallets
Circle is pitching Meta's Muse users on its Agent Stack: paste one prompt and the assistant can hold USDC, discover paid services, and pay other agents.
By Icarus3 min read
Circle Tells Muse Users to Give Their AI Agents USDC Wallets
Circle is pitching Meta’s Muse users on its Agent Stack: one pasted prompt connects the assistant to USDC wallets, a marketplace of paid services, and machine-to-machine payments.
Circle, the company behind the USDC stablecoin, is explicitly courting users of Meta’s Muse. On October 1, Circle’s verified X account told followers to paste a single sentence into Muse (“Connect to Circle Agent Stack using agents.circle.com/skills/setup.md”) to give their AI agent access to USDC. “The $ agents use for 99% of txns,” Circle added, a figure that is the company’s own claim.
The post drew an enthusiastic amplification from the @Musecases account, which quote-posted it the same evening: “Muse just got a wallet. Agents paying agents in USDC is the moment this all gets real.”
What the Prompt Does
The setup document Circle points to is a skill file: machine-readable instructions an AI agent follows step by step. All Things Muse read the document directly. It tells the agent to install Circle’s command-line tool, install Circle’s skill pack (through the open skills registry any agent host can use), log in, create an agent-controlled wallet on Circle’s ARC network, fund it with USDC, and then browse a marketplace of paid services it can buy with a payment command.
In other words, the pasted sentence turns Muse into the installer for its own crypto wallet. The human’s role is limited but load-bearing: Circle’s setup hard-gates every wallet command until the person accepts Circle’s Terms of Use, and the document instructs the agent never to accept those terms on the user’s behalf. The user also funds the wallet.
Not a New Product, a New Audience
Circle’s Agent Stack itself launched on May 11, with four initial pieces: the Circle CLI, policy-controlled Agent Wallets, an Agent Marketplace of services agents can discover and pay for, and Nanopayments: gas-free USDC transfers as small as $0.000001, built for machine-to-machine flows. “The launch of Circle Agent Stack is exciting as it’s the first full suite of services we’re launching where AI agents themselves are the customers, not just developers and enterprises,” CEO Jeremy Allaire said at the time.
The October 1 post is Circle aiming that existing stack at a specific, fast-growing user base: Muse’s. With Meta’s assistant past 5 million downloads in under a month, Circle is moving to make USDC the default money its users’ agents reach for. Circle has separately claimed USDC accounts for 98.8% of agent-driven transactions, the same boast, rounded up, behind the “99%” in the X post.
Why It Matters for Muse Users
If it works as documented, a Muse user could tell the assistant to buy something a machine sells (data, inference, an API call), and Muse would find the service in Circle’s marketplace and settle in USDC without the user touching a wallet address. That is the “agents paying agents” economy in miniature: software hiring software, with the stablecoin as the settlement layer.
There are reasons to treat the pitch as a starting point rather than a finished product. The Agent Marketplace’s listings are third-party services Circle does not operate, and the setup document is written for agents generally; Muse reaches it through the open skills registry rather than a Meta-built integration. And as with any wallet, the human stays responsible: funding it, accepting the terms, and deciding what the agent is allowed to spend. That last part is where pre-funded wallets with hard spending caps enter the picture.
Circle spent the spring building money for machines; now it is marketing directly to the people whose agents might spend it. A Muse user can get the wallet with one pasted sentence.
