Hello, everytime i put the api key from cal.com and the url code it gives me “error validating cal.com tools” why? i followed everystep from youtube, google and the forum. i need help, its urgent!!! [image]

Hello Ali Can you share the event type you are using , and the agent id.

Based on the available sources, the “error validating cal.com tools” message you’re encountering has been reported by other users (1) (2) . Here’s what you should verify: Required Credentials: API Key from Cal.com - Navigate to Settings → Developer → API Keys in your Cal.com dashboard (3) (4) Event Ty…

i am using retall ai, gemini 2.5

The Cal.com integration should work regardless of which LLM model you’re using (Gemini 2.5 Flash, GPT, etc.). The “error validating cal.com tools” is related to the Cal.com credentials themselves, not the LLM model selection (1) (2) . Your LLM Model Configuration: When using Gemini 2.5 Flash with Re…

Hello Ali, how did you have solved the issue? Thank you, Marvin

Based on the available sources, the issue where Retell AI was saying “Hello contact underscore name” instead of using the actual name was resolved by adding the retell_llm_dynamic_variables line (1) . The user @byredyre found that even though multiple videos didn’t include this line, adding it made t…

How did you solve it i have the same error

Error when using booking functions

Support Help

Ali_Kassab January 6, 2026, 3:43pm 8

I solved the issue, thank you

tis 6 jan. 2026 kl. 16:42 skrev Omar Ashraf <notifications@retell1.discoursemail.com>:

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Error when using booking functions

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