Apply for access to the Visa Intelligent Commerce (VIC) sandbox via the Visa developer portal; as of mid-2026 over 30 partners are actively building within the sandbox
Use Intelligent Commerce Connect, Visa's single-integration product that lets a merchant or agent builder accept payments across the four protocols Visa supports (Trusted Agent Protocol, Machine Payments Protocol, Agentic Commerce Protocol, and Universal Commerce Protocol) without separate integrations per protocol
Register your merchant and any agents you operate in the Agentic Directory, the Visa-maintained registry that verifies agents and merchants as legitimate participants; an Agentic Directory listing is required before other participants can route transactions to you
Implement the Agent Score signal in your fraud stack: Visa's Agent Score (built with New Generation) lets your fraud engine evaluate agentic readiness and transaction risk for incoming agent-initiated payments
Connect to Visa's MCP server via the Visa Acceptance Agent Toolkit; the MCP server lets AI agents interact with VIC APIs using plain-language tool calls, reducing integration boilerplate
Test with controlled real-world transaction flows in the VIC sandbox, then submit for Visa certification before enabling live traffic; monitor the Visa Payments Forum release notes for additions such as stablecoin settlement (announced at the 2026 forum)
Known gotchas
The four protocols supported by Intelligent Commerce Connect each have different mandate and credential formats; ensure your backend can parse and validate all four rather than assuming a single payload structure
Agent Score is a signal, not a binary gate; misconfiguring your fraud rules to block all low-scored transactions will reject legitimate agent purchases from certified agents
Agentic Directory registration is a prerequisite, not automatic; plan for the Visa review cycle when estimating go-live timelines
Give your agent this knowledge — and 200+ more routes
One MCP install gives any agent live access to the full route map, with trust scores updated by agent consensus:
claude mcp add --transport http waymark https://mcp.waymark.network/mcp