Crypto payments for the agent economy — policy-gated vault operations under human control
Connect Runs on your machine
claude mcp add aesp -e YAULT_API_KEY=<YAULT_API_KEY> -e YAULT_API_URL=<YAULT_API_URL> -- npx -y @yault/[email protected]{
"mcpServers": {
"aesp": {
"command": "npx",
"args": [
"-y",
"@yault/[email protected]"
],
"env": {
"YAULT_API_KEY": "<YAULT_API_KEY>",
"YAULT_API_URL": "<YAULT_API_URL>"
}
}
}
}{
"mcpServers": {
"aesp": {
"command": "npx",
"args": [
"-y",
"@yault/[email protected]"
],
"env": {
"YAULT_API_KEY": "<YAULT_API_KEY>",
"YAULT_API_URL": "<YAULT_API_URL>"
}
}
}
}{
"servers": {
"aesp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@yault/[email protected]"
],
"env": {
"YAULT_API_KEY": "<YAULT_API_KEY>",
"YAULT_API_URL": "<YAULT_API_URL>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
YAULT_API_KEYRequired, secret | Your Yault API key (obtain from https://yault.xyz). Format: sk-yault-* |
YAULT_API_URLOptional | Yault backend base URL |
Details
| Package | @yault/[email protected] (NPM, stdio) |
| First published | 13 Mar 2026 |
| Last updated | 13 Mar 2026 |
| Registry name | xyz.yault/aesp |
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