invalid_token (HTTP 401)

Seeing this in an AI assistant or MCP connector, not from our API? Read what "invalid access token" means.

• HTTP status: 401
• Problem type URI: https://nowgetitdone.com/docs/api/problems/invalid-token

What it meansCopy Anchor Link

An OAuth 2.1 access token was supplied but is expired, malformed, or revoked.

Likely causesCopy Anchor Link

• The access token has passed its expiry.
• The token was issued by a different authorization server or for a different resource.

How to fixCopy Anchor Link

• Refresh the access token using your refresh token (request the offline_access scope to receive one).
• Re-run the OAuth authorization flow if the grant was revoked.

Example problem+jsonCopy Anchor Link

{
    "type": "https://nowgetitdone.com/docs/api/problems/invalid-token",
    "title": "Invalid access token",
    "status": 401,
    "code": "invalid_token",
    "request_id": "req_a1b2c3d4"
}

RelatedCopy Anchor Link

• Authentication
• What "invalid access token" means in AI assistants and MCP connectors