AI article
x402 + MCP: where does the budget check go?
Community description: Both specs moved the price into headers and left the spend decision to you. This is what we ran at AGNTCon Tokyo, with the wire traffic and the check that refuses a request the system already approved.
Dev.to | Sep 26, 2026 | Prakash Rao
Automated excerpt
An agent needs to enrich a customer record. Metering and routing for paid agent traffic got dramatically cheaper. An agent that cannot reach the authorization service is isolated; an agent that reaches it and still cannot change the answer is governed.
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