Arca is a private data vault where your AI stores your structured data, semantic memory and skills.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add --transport http arca https://mcp.arca.build --header 'Authorization: <AUTHORIZATION>'~/.codex/config.toml
[mcp_servers.arca]
url = "https://mcp.arca.build"
http_headers = { Authorization = "<AUTHORIZATION>" }
# codex mcp add arca --url https://mcp.arca.build~/.cursor/mcp.json
{
"mcpServers": {
"arca": {
"url": "https://mcp.arca.build",
"headers": {
"Authorization": "<AUTHORIZATION>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"arca": {
"type": "http",
"url": "https://mcp.arca.build",
"headers": {
"Authorization": "<AUTHORIZATION>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"arca": {
"httpUrl": "https://mcp.arca.build",
"headers": {
"Authorization": "<AUTHORIZATION>"
}
}
}
}claude_desktop_config.json · Customize › Connectors › Add custom connector
{
"mcpServers": {
"arca": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://mcp.arca.build",
"--header",
"Authorization:<AUTHORIZATION>"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"arca": {
"url": "https://mcp.arca.build",
"headers": {
"Authorization": "<AUTHORIZATION>"
}
}
}
}