Reduce M2M Token Usage in Auth0 by Reusing Access Tokens
Apr 21, 2026
Overview
Machine-to-Machine (M2M) applications in Auth0 use the Client Credentials Flow to obtain access tokens. Each token request counts toward the tenant’s M2M quota. Inefficient token usage patterns can lead to unnecessary consumption and increased load.
Applies To
-
Client Credentials Flow
- Machine-to-Machine (M2M) Applications
- Auth0 Quotas
Cause
Applications request a new access token for every Application Programming Interface (API) call or operation rather than reusing an existing valid token. This results in excessive token generation and higher quota usage.
Solution
Reuse access tokens until they expire instead of requesting a new one each time:
- Cache the access token in memory or a shared store (for example, Redis).
- Track the token’s expiration (exp claim) and refresh only when needed.
- Centralize token retrieval in distributed systems to avoid duplicate requests.
This approach reduces unnecessary token requests and helps optimize M2M quota usage.
Example (pseudo-code):
if cached_token exists AND current_time < token_expiry:
return cached_token
response = request_new_token()
cached_token = response.access_token
token_expiry = current_time + response.expires_in
return cached_token
