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How AI agents can pay for AI services per call: x402 "upto" payments on Base
Published on October 17, 2026By DEV Community
A ceiling the payer signs, a metered amount the service settles, and no API keys Most AI services still sell access the way SaaS did in 2015: an account, an API key, a monthly plan and an invoice. That works for a human team. It does not work for an AI agent that needs to call a model it found a minute ago, pay for 3,000 tokens and move on. The problem with fixed-price payments HTTP 402 "Payment Required" has existed since the 1990s. The x402 standard finally gives it a format: a service answers
Read the full article: https://dev.to/armanalabs_b86b3803a4445c/how-ai-agents-can-pay-for-ai-services-per-call-x402-upto-payments-on-base-p9
Source: DEV Community