Connecting & Authentication
Create a PowerNames API key and connect Claude Desktop, Cursor, or a raw HTTP client to the MCP server.
Connecting takes two steps: create an API key, then point your MCP client at the endpoint with that key as a bearer token.
๐ Paste your own API key here. Open Settings โ API Keys in your PowerNames team, create a key, and copy it โ it starts with
pn_live_and is shown only once. Everywhere an example below readspn_live_YOUR_KEY, swap in the key you just copied. Without a real key the connection will be rejected.
1. Create an API key
API keys are scoped to a team workspace. Every project, name, and credit balance the key can reach belongs to that team.
- Open your team workspace and go to Settings โ API Keys.
- Create a key and give it a memorable name (for example,
claude-desktop). - Copy the key immediately โ it starts with
pn_live_and is shown only once. Store it somewhere safe.
Treat the key like a password. Anyone holding it can act as your team and spend its credits. If a key leaks, revoke it from the same screen and issue a new one.
2. The endpoint
| Environment | URL |
|---|---|
| Production | https://powernames.ai/api/mcp/mcp |
| Local dev | http://localhost:3003/api/mcp/mcp |
The server speaks MCP Streamable HTTP in stateless mode โ each request is self-contained and authenticated by the bearer token. No session handshake is required.
3. Connect your client
Claude Desktop / Cursor
Add PowerNames to your MCP configuration as a URL server with an Authorization header:
{
"mcpServers": {
"powernames": {
"type": "url",
"url": "https://powernames.ai/api/mcp/mcp",
"headers": {
"Authorization": "Bearer pn_live_YOUR_KEY"
}
}
}
}
Restart the client. PowerNames tools (list_projects, create_project, run_full_analysis, โฆ) will appear in the tool list.
Raw HTTP
The endpoint is plain JSON-RPC over HTTPS, so any language can call it. List the available tools:
curl -s https://powernames.ai/api/mcp/mcp \
-H "Authorization: Bearer pn_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}'
Call a tool with tools/call:
curl -s https://powernames.ai/api/mcp/mcp \
-H "Authorization: Bearer pn_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "create_project",
"arguments": { "name": "Project Aurora" }
}
}'
4. Health check
A GET on the endpoint returns basic server info and requires no authentication โ handy for confirming reachability:
curl -s https://powernames.ai/api/mcp/mcp
# { "name": "powernames", "version": "1.0.0",
# "protocolVersion": "2025-03-26", "capabilities": { ... } }
Authentication errors
| Situation | Response |
|---|---|
Missing or malformed Authorization header | 401, JSON-RPC error -32001 |
| Invalid or expired key | 401, JSON-RPC error -32001 |
| Rate limit exceeded | 429, JSON-RPC error -32029, plus Retry-After |
See Rate limits, credits & errors for the full list and how to handle them.