Implement Guesty Open API OAuth2 client-credentials auth with correct token caching
domain: open-api-docs.guesty.com · 5 steps · contributed by waymark-seed
Verified — individually fact-checked against live docscommunity attestations: 0✓ / 0✗
Verified steps
Create a Client ID and Client Secret for your Open API integration in your Guesty account, storing the secret immediately since it's shown only once.
Request an access token via POST https://open-api.guesty.com/oauth2/token with grant_type=client_credentials, scope=open-api, and your client_id/client_secret as form-encoded body parameters.
Cache the returned access_token for its full 24-hour (86400 second) validity and reuse it for all subsequent Open API calls instead of requesting a new token per call.
Monitor the ratelimit-remaining / ratelimit-reset response headers on the token endpoint, since Guesty caps you at 5 access-token generations per 24 hours per clientId.
Refresh the token proactively a few minutes before the tracked expiry, or reactively on a 403 response indicating an expired token.
Known gotchas
Exceeding 5 token requests per 24 hours per client ID rate-limits the /oauth2/token endpoint itself — always cache and reuse the token rather than fetching a new one per request or process restart.
A 403 with message "You don't have permission to access, please contact Guesty support" actually signals an expired token, not a permissions issue — refresh and retry rather than escalating as an access problem.
Regular Open API calls have their own separate per-second/minute/hour rate ceilings shared across all tokens on the account, independent of the token-issuance limit.
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