Tether Invests in AIsa and EFY Finance to Grow Stablecoin Payments

Tether Capital has invested in AIsa, a platform that lets AI agents find, access and pay for data resources without a human approving each purchase, according to Cryptobriefing. The investment was announced on October 15, 2026.

The platform already hosts more than 250,000 agents that have processed over 100 million cumulative transactions. Its catalog covers more than 5,000 APIs, skills and models, with billing that supports both fiat currency and stablecoins and lets users set their own spending limits.

Key facts

• Tether announced the AIsa investment on October 15, 2026, backing a platform with more than 250,000 agents and over 100 million cumulative transactions.
• AIsa launched in 2025 and reported a 150x increase in agent users between February and June 2026, with API calls and transactions up 200x over the same stretch.
• AIsa has raised $6.5 million in total funding, including a July 2026 seed round co-led by Alibaba and Tribe Capital.
• On October 13, 2026, Tether announced a separate investment in Latin American fintech company EFY Finance’s seed round, per Crypto.news, expanding institutional access to USDT and USAT across 17 countries.
• EFY Finance supports settlement to local accounts in 17 countries and serves more than 25,000 active individual and business accounts, according to Blockonomi.

AIsa’s per-call model for machine spending

AIsa charges per call rather than by subscription, so an agent that needs weather data, a translation model and a search tool can pull all three through one access point and pay only for what it uses. Billing covers fiat and stablecoins, and users can set spending limits — a control that matters when the buyer is an autonomous program.

The growth numbers explain Tether’s interest. Between February and June 2026, AIsa reported a 150x rise in agent users and a 200x rise in API calls and transactions. The company has raised $6.5 million in total, including a seed round in July 2026 co-led by Alibaba and Tribe Capital.

EFY Finance and Latin American settlement

The AIsa deal follows Tether’s October 13, 2026, investment in EFY Finance’s seed round, reported by Crypto.news and Blockonomi. EFY builds payment infrastructure that lets businesses and financial institutions move funds using dollar-backed stablecoins, linking digital assets to traditional bank accounts, with wallets, payment cards, custody and over-the-counter trading. It holds a Digital Asset Service Provider license in El Salvador and lists Bolivia, Colombia, Mexico, El Salvador, Panama and Ecuador as established markets.

The two tokens involved are USDT, Tether’s established dollar-pegged stablecoin, and USAT, a U.S.-focused stablecoin issued by Anchorage Digital Bank, N.A., a federally chartered bank, with Tether’s support. Tether states USAT is not legal tender, is not guaranteed by the U.S. government and does not carry FDIC insurance. In September, Anchorage Digital selected LayerZero as an interoperability provider for its bank-issued stablecoins, including USAT.

Neither company disclosed the investment amount, EFY’s valuation or the total seed round size. Tether CEO Paolo Ardoino pointed to inflation and capital controls as reasons some Latin American customers seek dollar-backed assets, saying EFY is positioned to improve access through regulated infrastructure and existing financial networks. EFY co-founder and CEO Andrés Tobón said the priority is connecting stablecoins with the accounts, cards and cross-border settlement arrangements businesses already use.

Chainalysis reported that Latin America recorded nearly $1.5 trillion in cryptocurrency transaction volume between July 2022 and June 2025, with Brazil at $318.8 billion, Argentina at $93.9 billion, Mexico at $71.2 billion, Venezuela at $44.6 billion and Colombia at $44.2 billion in value received. Stablecoins accounted for more than half of exchange purchases involving the Colombian peso, Argentine peso and Brazilian real between July 2024 and June 2025. Bitso’s 2025 report found dollar-backed tokens made up 40% of crypto purchases on its platform, against 18% for Bitcoin. Those figures describe regional activity, not EFY’s own volume.

Tether has pursued other institutional payment work in the region. In July 2026, Tether reportedly invested $20 million in Argentine digital bank Ualá, and that same month Hyundai Motor’s U.S. and Mexican operations completed a pilot moving $20,000 in USDT over the Avalanche blockchain, settling in roughly seven minutes.

Why it matters

Small, frequent payments fit awkwardly on card networks and bank transfers, which were not built for a program paying tiny sums every few seconds — the niche stablecoins have long claimed. AIsa gives that argument a live testing ground with real volume, while EFY extends the same dollar-token plumbing into regulated banking rails across Latin America. Both deals also feed Tether’s push into programmable money, adding utility to its Wallet Development Kit and QVAC, and sit alongside its earlier move into robotics through NEURA Robotics.

What to watch

The figures to track are AIsa’s agent count, its cumulative transactions and the share of its billing that settles in stablecoins rather than fiat. On the EFY side, no implementation deadlines, additional regulatory approvals, new products or target transaction volumes have been disclosed, so the next concrete signals will be disclosures about which blockchains it uses and any named institutional commitments. None of this constitutes financial advice, and crypto markets remain volatile and uncertain.

Disclaimer: This article is for information only and is not investment, financial or trading advice. Cryptocurrency prices are highly volatile. Always do your own research.

Sources: Crypto Briefing, Crypto.news, Blockonomi