AVEL runs on your own machine — the client starts it, so there is no endpoint to ping. 96 installs a week from pypi. Last commit 30 Sep 2026.
Identity/reputation verification for agent-to-agent payments across x402, AP2, MPP, checkout.
Nothing serious here today
Today is the operative word: we check AVEL every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add avel -e 'AVEL_PRIVATE_KEY=<AVEL_PRIVATE_KEY>' -- uvx agent-interchange{
"mcpServers": {
"avel": {
"command": "uvx",
"args": [
"agent-interchange"
],
"env": {
"AVEL_PRIVATE_KEY": "<AVEL_PRIVATE_KEY>"
}
}
}
}[mcp_servers.avel]
command = "uvx"
args = ["agent-interchange"]
env = { AVEL_PRIVATE_KEY = "<AVEL_PRIVATE_KEY>" }{
"mcpServers": {
"avel": {
"command": "uvx",
"args": [
"agent-interchange"
],
"env": {
"AVEL_PRIVATE_KEY": "<AVEL_PRIVATE_KEY>"
}
}
}
}{
"servers": {
"avel": {
"type": "stdio",
"command": "uvx",
"args": [
"agent-interchange"
],
"env": {
"AVEL_PRIVATE_KEY": "<AVEL_PRIVATE_KEY>"
}
}
}
}Put your own value in place of
<AVEL_PRIVATE_KEY> (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).
The author’s registry entry marks it as required.
Optional settings from the registry entry, left out of the block above:
AVEL_BASE_URL (Base URL of the AVEL instance to verify against (default: https://aisrail.fly.dev)).
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AVEL — questions
Answers built from our own checks of this server.