Payaion runs on your own machine — the client starts it, so there is no endpoint to ping. 187 installs a week from pypi.
Agent file transfer. No API key to start; price downloads in USDC on Base.
Today is the operative word: we check Payaion 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 payaion -- npx -y @payaion/mcp
{
"mcpServers": {
"payaion": {
"args": [
"-y",
"@payaion/mcp"
],
"command": "npx"
}
}
}
[mcp_servers.payaion]
command = "npx"
args = ["-y", "@payaion/mcp"]
{
"mcpServers": {
"payaion": {
"args": [
"-y",
"@payaion/mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"payaion": {
"args": [
"-y",
"@payaion/mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
PAYAION_API_KEY (Optional. Without it you upload as a guest: 100 MB per file, 24-hour link, no account. A key raises the limits and is required to sell. Get one at https://payaion.com/dashboard).
The author declared them in the registry entry; get the values from the project itself.
Pay-per-call crypto data for AI agents. USDC on Base via x402. No API key.
11 pay-per-call web tools for AI agents, auto-paid in USDC on Base via x402. No API keys.
AgisHub — 34 pay-per-call tools for AI agents over x402 (USDC on Base). No API key, no signup.
Web search and URL-to-markdown for agents. Pay per call in USDC on Base, no signup.
Pay-per-call DeFi intelligence for AI agents on Base — x402, USDC, no keys.
Pay-per-call agent tools via x402 (USDC on Base): chat, prices, funding, RNG. No account or keys.
Storage and file sharing for AI agents. No account, no API key: $0.01 USDC per call (x402, Base).
Pay-per-call AI video generation (Seedance text-to-video) via x402. USDC on Base, no API key.
Answers built from our own checks of this server.