Solana recorded more x402 transactions than any other network in August, according to an August roundup from the x402 ecosystem, as developers and companies test ways for artificial intelligence agents to make payments for digital services. The network overtook Base in daily x402 transaction activity during the month, while BlockRun said it settled 5.4 million agentic payments on Solana over a seven-day period through PayAI. Solana also said agents initiated 3.3 million USDC transfers using x402 during a single week. The activity is part of a broader effort to enable software to pay for APIs, data, computing, and other services without requiring a person to handle each transaction. The figures, however, measure transaction activity rather than the number of users or the amount of independent commercial demand behind it.
Solana’s x402 Activity Puts Machine Payments In Focus
x402 is a payment protocol built around the HTTP 402 “Payment Required” status code. It allows a service to request payment when an agent makes an API request, after which the agent can authorize a payment and retry the request. Solana’s documentation describes x402 as a way for agents to access paid APIs and other resources without having to manually create accounts or manage API keys.
The model is designed particularly for small, pay-per-use transactions. Instead of requiring an agent to maintain an account, subscription, or API key for each service it uses, an x402-enabled endpoint can return a payment request, allowing the agent to pay for a single request. The Solana ecosystem has been one of the networks supporting this activity. BlockRun said it settled 5.4 million agentic payments on Solana in seven days through PayAI, while its x402 endpoints can accept USDC on Solana.
The August roundup also said x402 had passed roughly 200 million transactions across about 150,000 endpoints, with most payments below $0.50. Solana’s own x402 ecosystem page currently reports more than 37 million transactions on Solana and says the network accounts for 70% of monthly x402 volume. The Solana roundup highlights examples such as paid financial research, data access, computing, and other API services, suggesting that the network is being used to test payments made directly by software.
Wallets Bring Agent Payments Closer To Businesses
For agents to spend money independently, payment infrastructure needs to go beyond settlement. Companies also need a way to fund wallets, set limits, and track what an agent has purchased. That is where corporate finance platforms such as Ramp are entering the market. Ramp’s agent tools include functions for businesses to provision x402 wallets, fund them from a Ramp account, and pay x402 requests using a company’s stablecoin balance.
The move gives companies a way to connect agent spending with existing financial controls. Ramp’s documentation describes wallet provisioning and funding as business-level functions, while x402 payments can be made from the company’s stablecoin balance.
MoonPay is pursuing a consumer-facing version through PayBox. According to MoonPay’s announcement, PayBox connects with Claude and ChatGPT and allows users to approve transactions prepared by an AI agent. MoonPay says the system can be used for activities including token swaps, DeFi interactions, travel and restaurant bookings, and online purchases. Solana Foundation is also promoting Pay.sh, a payment layer for HTTP agents and command-line tools. The foundation launched the service in collaboration with Google Cloud, stating in its announcement that agents could access and pay for APIs from providers, including Google Cloud, on a per-request basis.
The approach changes how an agent can interact with online services. Instead of a person signing up for each API, maintaining credentials, and managing separate subscriptions, the agent can discover a service, receive a price quote, and make a payment for the request. The open question is how much of this activity will translate into sustained business use. Agent payments still face practical issues with authorization, fraud, identity verification, refunds, accounting, and determining whether an agent should spend money in the first place.
Researchers studying x402 have also raised questions about how transaction activity should be measured and how much represents independent economic activity. Solana’s reported lead in x402 activity shows that developers are testing blockchain-based payments for software at increasing volumes. It does not yet establish how large the market for autonomous payments will become.
GoogleNews