Vantic runs on your own machine — the client starts it, so there is no endpoint to ping. 59 installs a week from npm. Last commit 31 Jul 2026.
Verify an AI agent's payment authority: signed mandates, allowlists, and tamper-proof receipts.
Today is the operative word: we check Vantic every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
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 vantic -- npx -y @vantic/sdk
{
"mcpServers": {
"vantic": {
"command": "npx",
"args": [
"-y",
"@vantic/sdk"
]
}
}
}
[mcp_servers.vantic]
command = "npx"
args = ["-y", "@vantic/sdk"]
{
"mcpServers": {
"vantic": {
"command": "npx",
"args": [
"-y",
"@vantic/sdk"
]
}
}
}
{
"servers": {
"vantic": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@vantic/sdk"
]
}
}
}
Deterministic payment policy guardrail for AI agents - budgets, allowlists, signed mandates.
Marketplace and payment rail for AI agents: list, buy and settle with signed receipts.
One verification call for third-party agent cards and payment mandates — a receipted verdict a
Tamper-evident audit logs for AI agents: submit, fetch, and verify cryptographic proof bundles.
Hosted x402 preflight for action authority, payment mandate, destination, expiry and replay.
Trust layer for agent payments (x402, Base): verify agents, risk scores, signed escrow verdicts.
Web search for agents, one x402 payment: real results, provider failover, signed receipt. $0.01.
Signed Bitcoin and crypto prices for AI agents: multi-exchange prices anyone can verify offline.
Answers built from our own checks of this server.