Cline Assay A2A, MCP & x402 Pre-Flight Verifier & Observatory Prompt/verify-x402-delivery
How to: Cline Assay A2A, MCP & x402 Pre-Flight Verifier & Observatory verify-x402-delivery
Add Assay A2A, MCP & x402 Pre-Flight Verifier & Observatory to Cline
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01
Open ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json and merge this in. Keep any servers already there.
{
"mcpServers": {
"assay": {
"url": "https://assay.agentdiet.dev/mcp"
}
}
}-
02
Save the file and restart Cline.
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03
verify-x402-delivery is surfaced in the client's prompt or command menu. Unlike a tool, you invoke it deliberately — Cline will not call it for you.
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04
If it does not appear, check that Assay A2A, MCP & x402 Pre-Flight Verifier & Observatory is connected and that you are looking at its prompts rather than its tools.
Cline's MCP Servers pane edits this file for you if you would rather not find it. Cline docs
Same prompt, other clients
Read from the server itself, by connecting to it and calling prompts/list on 19 October 2026.
A listing does not declare its prompts, so asking is the only way to know them, and this
is what the server actually offers rather than what its listing claims. Names only are
stored; connect the server for each prompt's arguments.