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post
/add-knowledge-base-sources/{knowledge_base_id}
post
/create-agent
post
/create-batch-call
post
/create-batch-test
post
/create-test-case-definition
delete
/delete-test-case-definition/{test_case_definition_id}
get
/get-test-case-definition/{test_case_definition_id}
get
/v2/list-test-case-definitions
put
/update-test-case-definition/{test_case_definition_id}
get
/get-batch-test/{test_case_batch_job_id}
get
/v2/list-batch-tests
get
/get-test-run/{test_case_job_id}
get
/v2/list-test-runs/{test_case_batch_job_id}
post
/create-chat-agent
post
/agent-playground-completion/{agent_id}
post
/create-chat-completion
post
/create-chat
post
/create-conversation-flow-component
post
/create-conversation-flow
post
/create-asset
post
/create-knowledge-base
post
/create-phone-number
post
/create-retell-llm
post
/create-sms-chat
delete
/delete-agent/{agent_id}
delete
/delete-chat/{chat_id}
delete
/delete-chat-agent/{agent_id}
delete
/delete-conversation-flow-component/{conversation_flow_component_id}
delete
/delete-conversation-flow/{conversation_flow_id}
delete
/delete-knowledge-base-source/{knowledge_base_id}/source/{source_id}
delete
/delete-knowledge-base/{knowledge_base_id}
delete
/delete-phone-number/{phone_number}
delete
/delete-retell-llm/{llm_id}
patch
/end-chat/{chat_id}
get
/list-agent-versions/{agent_id}
get
/get-agent/{agent_id}
get
/get-chat-agent/{agent_id}
get
/get-chat/{chat_id}
get
/get-concurrency
get
/get-api-key-info
get
/get-conversation-flow-component/{conversation_flow_component_id}
get
/get-conversation-flow/{conversation_flow_id}
get
/get-knowledge-base/{knowledge_base_id}
get
/get-mcp-tools/{agent_id}
get
/get-phone-number/{phone_number}
get
/get-retell-llm/{llm_id}
get
/get-voice/{voice_id}
post
/clone-voice
post
/add-community-voice
post
/search-community-voice
post
/import-phone-number
post
/v2/list-agents
post
/v3/list-chats
get
/v2/list-conversation-flow-components
get
/v2/list-conversation-flows
get
/list-knowledge-bases
get
/v2/list-phone-numbers
get
/v2/list-retell-llms
get
/list-voices
post
/create-agent-version/{agent_id}
post
/publish-agent-version/{agent_id}
delete
/delete-agent-version/{agent_id}
post
/refresh-knowledge-base/{knowledge_base_id}
put
/rerun-call-analysis/{call_id}
put
/rerun-chat-analysis/{chat_id}
patch
/update-agent/{agent_id}
post
/repair-agent/{agent_id}
patch
/update-chat-agent/{agent_id}
patch
/update-chat/{chat_id}
patch
/update-conversation-flow-component/{conversation_flow_component_id}
patch
/update-conversation-flow/{conversation_flow_id}
patch
/update-phone-number/{phone_number}
patch
/update-retell-llm/{llm_id}
post
/v2/create-phone-call
post
/v3/create-web-call
delete
/v2/delete-call/{call_id}
get
/v2/get-call/{call_id}
post
/v2/listen-live-call/{call_id}
post
/v2/take-over-live-call/{call_id}
post
/v3/list-calls
get
/v2/list-export-requests
post
/v2/register-phone-call
patch
/v2/update-call/{call_id}
patch
/v2/update-live-call/{call_id}
post
/v2/stop-call/{call_id}
post
/create-contact
post
/upload-contact-import-file
post
/create-contact-import
get
/get-contact-import
get
/get-contact/{contact_id}
get
/get-contact-by-phone/{phone_number}
patch
/update-contact/{contact_id}
delete
/delete-contact/{contact_id}
post
/list-contacts
get
/list-contact-conversations/{contact_id}
post
/create-app
get
/get-app/{app_id}
patch
/update-app/{app_id}
delete
/delete-app/{app_id}
get
/list-apps
get
/list-app-usages/{app_id}
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Changes to POST /list-contacts
post
/list-contacts
Oct 16, 2026
ca41f0dbb297
Revision changes
info
endpoint added