Identity/reputation verification for agent-to-agent payments across x402, AP2, MPP, checkout.
Connect Runs on your machine
claude mcp add avel -e AVEL_BASE_URL=<AVEL_BASE_URL> -e AVEL_PRIVATE_KEY=<AVEL_PRIVATE_KEY> -- uvx agent-interchange==0.1.2{
"mcpServers": {
"avel": {
"command": "uvx",
"args": [
"agent-interchange==0.1.2"
],
"env": {
"AVEL_BASE_URL": "<AVEL_BASE_URL>",
"AVEL_PRIVATE_KEY": "<AVEL_PRIVATE_KEY>"
}
}
}
}{
"mcpServers": {
"avel": {
"command": "uvx",
"args": [
"agent-interchange==0.1.2"
],
"env": {
"AVEL_BASE_URL": "<AVEL_BASE_URL>",
"AVEL_PRIVATE_KEY": "<AVEL_PRIVATE_KEY>"
}
}
}
}{
"servers": {
"avel": {
"type": "stdio",
"command": "uvx",
"args": [
"agent-interchange==0.1.2"
],
"env": {
"AVEL_BASE_URL": "<AVEL_BASE_URL>",
"AVEL_PRIVATE_KEY": "<AVEL_PRIVATE_KEY>"
}
}
}
}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 |
|---|---|
AVEL_BASE_URLOptional | Base URL of the AVEL instance to verify against (default: https://aisrail.fly.dev) |
AVEL_PRIVATE_KEYRequired, secret | EVM private key of the agent identity this MCP server represents — signs every verify()/issue_challenge()/verify_challenge()/get_verdict() call. Never exposed as a tool argument. |
Details
| Package | [email protected] (PYPI, stdio) |
| First published | 16 Sep 2026 |
| Last updated | 16 Sep 2026 |
| Registry name | io.github.Ensi81/avel |
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