csprUSD Launching as Casper’s Standard Stablecoin for Machine-to-Machine Payments
Key Takeaways
- •The Linux Foundation launched the x402 Foundation with 40 member organizations, and Casper is among the networks participating in the effort.
- •An x402 facilitator is already live on Casper Mainnet, enabling AI agents to pay for online services through standard HTTP request and response cycles.
- •The upgraded csprUSD contract adds Casper 2.0 compatibility and CEP-3009, allowing off-chain payment authorization that can be settled on-chain.
- •Casper reduced its minimum transaction cost from 2.5 CSPR to 0.1 CSPR after CEP-97 acceptance, making tiny machine-to-machine payments more viable.
- •The upgraded csprUSD is expected to reach Casper Mainnet later in Q3 after testnet validation, security auditing, and regulatory compliance.

Zug, Switzerland, July 29, 2026, Chainwire
Upgraded for Casper 2.0 and x402 micropayments, csprUSD is set to become the settlement currency for AI agents transacting on Casper Network.
Humans are now a minority on the internet. According to Cloudflare, automated traffic accounts for 59.4% of all web requests, while humans account for 40.6%. A growing share of that automated traffic comes from AI agents performing real tasks such as calling APIs, retrieving data, booking services, and purchasing AI compute. The challenge is that the internet has no native way to charge them.
Every payment system on the web was built for humans. Credit card forms assume someone is typing. Subscriptions assume a calendar and a renewal decision. Wire transfers assume a banker and a business day. AI agents have none of these requirements and do not need them. They need to pay a fraction of a cent for a single API call, receive a cryptographic receipt, and continue, thousands of times per hour.
That is the problem the x402 protocol is designed to solve. This week, the Linux Foundation announced the operational launch of the x402 Foundation, with 40 member organizations including Visa, Mastercard, American Express, Google, Coinbase, Circle, Stripe, AWS, and Cloudflare. Casper is among them, and unlike most networks, Casper is already settling agentic payments: an x402 facilitator is live on Casper Mainnet today, allowing AI agents to pay for online services through standard HTTP request and response cycles.
What agents need next is a dollar to spend. The Casper Association and Sarson Funds said csprUSD, the U.S. dollar stablecoin originally developed and launched by Sarson Funds on Casper in 2024, is being upgraded to serve that role.
The upgraded csprUSD contract adds full Casper 2.0 compatibility and implements CEP-3009, Casper’s standard for authorized transfers. CEP-3009 allows a token holder, whether human or machine, to sign a payment authorization off-chain that anyone can settle on-chain. That is the mechanism x402 payments use: an agent signs an authorization in the HTTP header of its request, the facilitator settles it against the csprUSD contract, and the paid resource is returned. No account top-ups, no session keys, and no card on file.
Before deployment, the upgraded contract will undergo a new security audit, extending the Halborn audit that covered the original version.
Casper’s ProofLayer will also be integrated into the csprUSD deployment. ProofLayer is a modular proof infrastructure that cryptographically proves off-chain data with on-chain receipts. It is already deployed with projects such as Parking Blox, which uses it to prove the daily cashflows of parking facilities in the United States. It will also be used with csprUSD to prove U.S. dollar collateral, mints, and redemptions as the stablecoin reaches Mainnet in the near future.
With the upgrade, csprUSD is intended to become the standard stablecoin of the Casper ecosystem, serving as the default stable settlement asset for applications, DeFi, and every agent transacting through Casper’s x402 rails. Centralized exchange listings for csprUSD have already been confirmed, including trading pairs against other major stablecoins, providing on- and off-ramps from the outset.
AI agents are expected to make thousands of low-value payments as part of routine operation, but on many networks, the cost of settling those transactions can quickly exceed the value being exchanged.
Following the recent acceptance of CEP-97, Casper has reduced the network’s minimum transaction cost from 2.5 CSPR to 0.1 CSPR, a fraction of a cent. At that level, an AI agent can pay a tenth of a cent for an online service without the network fee overtaking the payment itself, making machine-to-machine micropayments economically viable. Developers can begin building and testing those payment flows today using the official x402 facilitator on Casper Testnet.
“Every couple of decades the internet grows a new kind of user, and commerce has to be rebuilt for it,” said Michael Steuer, President and CTO of the Casper Association. “The browser brought consumers, and we got the credit card form. The smartphone brought app stores and in-app purchases. Now agents are becoming the majority of internet traffic, and they can’t fill out a checkout page, won’t commit to an annual subscription, and are not going to send a wire. They need to pay per request, at machine speed, in stable value, and with negligible yet predictable cost. csprUSD on Casper is that: a dollar an agent can actually spend. Most of the internet is not ready for this storm. We’re laying the rails before it hits.”
The upgraded csprUSD contract is expected to reach Casper Mainnet later in Q3, after Testnet validation, security auditing, and regulatory compliance. Integration and liquidity details will be shared through official Casper channels.
The agents are already here. Now they transact as independently as they work.
About Casper
Casper Network (CSPR) is a Layer 1 Proof-of-Stake blockchain engineered for regulated real-world assets and the machine economy.
With deterministic transaction finality, a multi-VM execution layer supporting both WebAssembly and, soon, EVM smart contracts, and fixed-cost operations enforced at the protocol level, Casper provides infrastructure for compliant asset tokenization, frictionless consumer experiences, and autonomous machine-to-machine commerce.
The Casper Manifest, the network’s multi-year technical roadmap, advances nine coordinated protocol initiatives spanning developer access, user experience, institutional compliance, privacy, micropayments, and quantum safety.
The Casper Association, a non-profit organization based in Zug, Switzerland, oversees protocol development and ecosystem growth.
Connect on socials: https://x.com/Casper_Network •
Learn more at .
About Sarson Funds
Sarson Funds focuses on blockchain and cryptocurrency education and marketing services for the financial professional community and its clients.
The firm says it is committed to providing unbiased, comprehensive education on disruptive technologies and works with investment managers to bring Wall Street’s research, risk management, and transparency standards to digital asset investing. Sarson Funds also works with traditional financial advisors to determine the appropriate role of cryptocurrencies in diversified investment portfolios.
Disclosures
This release is for informational purposes only and does not constitute an offer to sell, a solicitation to buy, or a recommendation of any securities, tokens, products, or services. Statements in this release may include forward-looking information subject to risks and uncertainties. Sarson Funds, Inc. is not providing investment, legal, tax, or accounting advice. Readers should consult their own advisors before making financial decisions. Cryptocurrency and digital asset investments are inherently risky and may result in the loss of capital.
Tamara Wasserman
[email protected]
The post csprUSD Launching as Casper’s Standard Stablecoin, Rebuilt for the Machine Economy appeared first on Chainwire.