Payment rails for AI agents. Pay merchants in USDC on Base. Dual-protocol: x402 + OKX APP.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add --transport http coal-payments-for-ai-agents https://mcp.usecoal.xyz/api/mcp --header 'X-Coal-Agent-Key: <X_COAL_AGENT_KEY>' --header 'X-Coal-Api-Key: <X_COAL_API_KEY>'~/.codex/config.toml
[mcp_servers.coal-payments-for-ai-agents]
url = "https://mcp.usecoal.xyz/api/mcp"
http_headers = { X-Coal-Agent-Key = "<X_COAL_AGENT_KEY>", X-Coal-Api-Key = "<X_COAL_API_KEY>" }
# codex mcp add coal-payments-for-ai-agents --url https://mcp.usecoal.xyz/api/mcp~/.cursor/mcp.json
{
"mcpServers": {
"coal-payments-for-ai-agents": {
"url": "https://mcp.usecoal.xyz/api/mcp",
"headers": {
"X-Coal-Agent-Key": "<X_COAL_AGENT_KEY>",
"X-Coal-Api-Key": "<X_COAL_API_KEY>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"coal-payments-for-ai-agents": {
"type": "http",
"url": "https://mcp.usecoal.xyz/api/mcp",
"headers": {
"X-Coal-Agent-Key": "<X_COAL_AGENT_KEY>",
"X-Coal-Api-Key": "<X_COAL_API_KEY>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"coal-payments-for-ai-agents": {
"httpUrl": "https://mcp.usecoal.xyz/api/mcp",
"headers": {
"X-Coal-Agent-Key": "<X_COAL_AGENT_KEY>",
"X-Coal-Api-Key": "<X_COAL_API_KEY>"
}
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"coal-payments-for-ai-agents": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://mcp.usecoal.xyz/api/mcp",
"--header",
"X-Coal-Agent-Key:<X_COAL_AGENT_KEY>",
"--header",
"X-Coal-Api-Key:<X_COAL_API_KEY>"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"coal-payments-for-ai-agents": {
"url": "https://mcp.usecoal.xyz/api/mcp",
"headers": {
"X-Coal-Agent-Key": "<X_COAL_AGENT_KEY>",
"X-Coal-Api-Key": "<X_COAL_API_KEY>"
}
}
}
}