Nyckln handles the complexity of OAuth flows, token refresh, and credential management so you can focus on what matters — building great products.
# Get a valid token in one call
$ curl -X POST /api/v1/tools/GetTokenTool/call \
-H "Content-Type: application/json" \
-H "X-Tenant-Key: XXX" \
-d '{"app_slug": "AWS"}'
{
"access_token": "xoxb-****-****",
"expires_in": 3600,
"status": "active"
}
# Tokens auto-refresh. Always valid.
Your integration fails at 2 AM because a token expired. Users wake up to broken workflows.
Every OAuth provider has quirks. You end up writing custom refresh code for each one.
Storing tokens securely, rotating secrets, handling revocations — it adds up fast.
Which tokens are about to expire? Which refresh failed? You're flying blind.
One service to handle authentication across all your integrations.
Request a token, get a valid one. Nyckln handles refresh automatically in the background. No more expired token errors.
OAuth 2.0, PKCE, credential exchange, custom flows. One unified interface for any authentication method.
Tokens, secrets, and credentials are encrypted at rest with Lockbox. Your sensitive data stays protected.
Organize tokens by tenant, app, and configuration. Perfect for SaaS platforms and agencies.
Every token event is logged: creation, usage, refresh, expiration, revocation. Full compliance support.
Built-in Model Context Protocol tools let AI assistants manage tokens securely on your behalf.
Three steps to token peace of mind.
Add your OAuth credentials, API keys, or custom auth flows. Nyckln supports any authentication method.
Authorize your accounts through Nyckln. We handle the OAuth dance and store tokens securely.
Call our API or use MCP tools to get valid tokens. We refresh them automatically before they expire.
Get tokens with a single API call. No OAuth libraries. No refresh logic. No token storage headaches.
# AI assistants can request tokens directly
{
"tool": "get_token",
"arguments": {
"app_slug": "google-calendar"
}
}
# Response
{
"access_token": "ya29.a0AfH...",
"expires_at": "2024-01-15T14:30:00Z"
}
Start managing tokens the easy way. Free to get started, no credit card required.