The question of who lets an AI agent touch real money is getting answered faster than the question of who governs it. On Tuesday, Tether — the issuer of the world's largest stablecoin — led a $15 million Series A round for Mural, a New York startup building the infrastructure that lets AI agents move money on their own, according to CoinDesk.

Mural, founded in 2022 by former Palantir engineers Sinclair Toffa and Chris Fernandes, gives fintechs and platforms a single account that holds U.S. dollars, local currencies, and stablecoins while handling payments, identity verification, and regulatory compliance across both traditional banking networks and blockchains. Its customers include the payroll platform Deel and browser developer Opera.

The traction is what's driving the round. Since launching its API in 2025, Mural says it has processed $2.1 billion in payments across 128 countries — and its 2026 volume so far is nearly six times its entire 2025 total, as reported by Fathom News. North Island Ventures and existing investors joined Tether in the round, bringing Mural's total funding to $28 million after a $5 million seed in 2022.

This is "agentic finance" going from whitepaper to plumbing. Mural's pitch is that autonomous software can initiate and execute transactions on behalf of people and businesses — but inside guardrails: transaction limits, restricted counterparties, and mandatory extra approvals for larger payments. That's the authorization-and-accountability problem that has made banks nervous about letting agents anywhere near a checking account.

Tether CEO Paolo Ardoino put the thesis bluntly: "As agents start moving money, that connection to the banks, payment networks and compliance systems the world still runs on becomes essential."

The subtext is who gets to be the settlement layer. The card networks and banks are writing frameworks for restricting agent spending — Amex published one last week — while a stablecoin issuer is funding the rails for enabling it. Tether's growing interest in infrastructure beyond USDT issuance, as CoinDesk notes, points to programmable payments as the next battlefield: if agents settle in stablecoins, the dollar moves at machine speed and the compliance layer becomes the product.

What to watch: whether this becomes the default pattern. Agents need money movement that doesn't require a browser, a password, and a fraud alert — and right now the only players willing to build that are crypto-native. The plumbing is arriving before the rules. The rules will follow, and they'll decide how much of this $2.1 billion flow survives contact with regulators.

— via CoinDesk