generated: '2026-08-05'
method: derived
source:
- mcp/syllable-mcp.yml
- openapi/syllable-sdk-openapi-original.yml
summary: 'Syllable publishes both a real OpenAPI (176 operations on api.syllable.cloud) and a real, anonymously-introspectable
  MCP server (3 tools on docs.syllable.ai). They do not overlap at all: the MCP server is a documentation-search
  surface, so no MCP tool binds to a REST operation and every platform capability is REST-only. The agent-facing
  path to the platform API is the first-party Go CLI, which ships a provider-authored Claude Code skill covering
  the same resources.'
surfaces:
  openapi:
    file: openapi/syllable-sdk-openapi-original.yml
    host: https://api.syllable.cloud
    operations: 176
    gated: false
    note: Spec is served publicly from spec.speakeasy.com; calling the API needs a Syllable-API-Key.
  mcp:
    url: https://docs.syllable.ai/mcp
    tools: 3
    gated: false
    note: tools/list responds 200 anonymously; scope is documentation only.
  graphql:
    endpoint: null
    note: No GraphQL surface found on any Syllable host.
crosswalk: []
mcp_only:
- tool: search_syllable_sdk
  reason: Documentation search over the Mintlify docs corpus. No REST equivalent — the platform API has no docs-search
    operation.
- tool: query_docs_filesystem_syllable_sdk
  reason: Read-only virtual filesystem over documentation pages and OpenAPI specs. No REST equivalent.
- tool: submit_feedback
  reason: Files documentation feedback to the docs team. No REST equivalent; unrelated to the platform API.
rest_only:
- capability: V1
  operations: 7
  operation_ids:
  - users_create
  - users_delete
  - users_delete_account
  - users_get_by_email
  - users_list
  - users_send_email
  - users_update
- capability: agents
  operations: 7
  operation_ids:
  - agent_create
  - agent_delete
  - agent_get_available_voices
  - agent_get_by_id
  - agent_list
  - agent_list_active_labels
  - agent_update
- capability: agents.test
  operations: 1
  operation_ids:
  - send_test_message
- capability: bridge_phrases
  operations: 5
  operation_ids:
  - bridge_phrases_create
  - bridge_phrases_delete
  - bridge_phrases_get_by_id
  - bridge_phrases_list
  - bridge_phrases_update
- capability: channels
  operations: 4
  operation_ids:
  - channel_targets_delete
  - channels_create
  - channels_list
  - channels_update
- capability: channels.targets
  operations: 5
  operation_ids:
  - available_targets
  - channel_targets_create
  - channel_targets_get_by_id
  - channel_targets_list
  - channel_targets_update
- capability: channels.twilio
  operations: 3
  operation_ids:
  - channels_twilio_create
  - channels_twilio_get_by_id
  - channels_twilio_update
- capability: channels.twilio.numbers
  operations: 4
  operation_ids:
  - channels_twilio_numbers_a2p_compliance_check
  - channels_twilio_numbers_add
  - channels_twilio_numbers_list
  - channels_twilio_numbers_update
- capability: conversation-config
  operations: 2
  operation_ids:
  - get_bridge_phrases_config
  - update_bridge_phrases_config
- capability: conversations
  operations: 1
  operation_ids:
  - conversations_list
- capability: custom_messages
  operations: 5
  operation_ids:
  - custom_message_get_by_id
  - custom_messages_create
  - custom_messages_delete
  - custom_messages_list
  - custom_messages_update
- capability: dashboards
  operations: 6
  operation_ids:
  - post_get_dashboard
  - post_list_dashboard
  - post_session_events_dashboard
  - post_session_summary_dashboard
  - post_session_transfers_dashboard
  - post_sessions_dashboard
- capability: data_sources
  operations: 5
  operation_ids:
  - data_sources_create
  - data_sources_delete
  - data_sources_get_by_id
  - data_sources_list
  - data_sources_update
- capability: directory
  operations: 10
  operation_ids:
  - directory_member_bulk_load
  - directory_member_create
  - directory_member_delete
  - directory_member_download
  - directory_member_get_by_id
  - directory_member_history
  - directory_member_list
  - directory_member_restore
  - directory_member_test_extension
  - directory_member_update
- capability: events
  operations: 1
  operation_ids:
  - events_list
- capability: incidents
  operations: 6
  operation_ids:
  - incident_create
  - incident_delete
  - incident_get_by_id
  - incident_get_organizations
  - incident_list
  - incident_update
- capability: insights
  operations: 1
  operation_ids:
  - insights_list
- capability: insights.folders
  operations: 8
  operation_ids:
  - insights_folder_create
  - insights_folder_delete
  - insights_folder_get_by_id
  - insights_folder_list
  - insights_folder_update
  - insights_folder_upload_file
  - insights_upload_list_files
  - insights_upload_move_files
- capability: insights.tools
  operations: 7
  operation_ids:
  - insight_tool_get_by_id
  - insight_tool_get_definitions
  - insight_tool_list
  - insights_tool_create
  - insights_tool_delete
  - insights_tool_test
  - insights_tool_update
- capability: insights.workflows
  operations: 8
  operation_ids:
  - insights_workflow_activate
  - insights_workflow_create
  - insights_workflow_delete
  - insights_workflow_get_by_id
  - insights_workflow_inactivate
  - insights_workflow_list
  - insights_workflow_queue_work
  - insights_workflow_update
- capability: language_groups
  operations: 6
  operation_ids:
  - language_groups_create
  - language_groups_create_voice_sample
  - language_groups_delete
  - language_groups_get_by_id
  - language_groups_list
  - language_groups_update
- capability: organizations
  operations: 4
  operation_ids:
  - organizations_create
  - organizations_delete
  - organizations_get
  - organizations_update
- capability: organizations.sip_ip_ranges
  operations: 4
  operation_ids:
  - organization_sip_ip_ranges_create
  - organization_sip_ip_ranges_delete
  - organization_sip_ip_ranges_list
  - organization_sip_ip_ranges_update
- capability: outbound.batches
  operations: 9
  operation_ids:
  - outbound_batch_add
  - outbound_batch_create
  - outbound_batch_delete
  - outbound_batch_get_by_id
  - outbound_batch_list
  - outbound_batch_remove
  - outbound_batch_results
  - outbound_batch_update
  - outbound_batch_upload
- capability: outbound.campaigns
  operations: 5
  operation_ids:
  - outbound_campaign_create
  - outbound_campaign_delete
  - outbound_campaign_get_by_id
  - outbound_campaign_list
  - outbound_campaign_update
- capability: permissions
  operations: 1
  operation_ids:
  - permissions_list
- capability: prompts
  operations: 7
  operation_ids:
  - prompt_get_supported_llms
  - prompts_create
  - prompts_delete
  - prompts_get_by_id
  - prompts_history
  - prompts_list
  - prompts_update
- capability: pronunciations
  operations: 5
  operation_ids:
  - pronunciations_delete_csv
  - pronunciations_download_csv
  - pronunciations_get
  - pronunciations_get_metadata
  - pronunciations_upload_csv
- capability: roles
  operations: 5
  operation_ids:
  - roles_create
  - roles_delete
  - roles_get_by_id
  - roles_list
  - roles_update
- capability: services
  operations: 5
  operation_ids:
  - service_create
  - service_delete
  - service_list
  - service_update
  - services_get_by_id
- capability: session_debug
  operations: 3
  operation_ids:
  - get_session_data_by_session_id
  - get_session_data_by_sid
  - get_session_tool_call_result_by_id
- capability: session_labels
  operations: 3
  operation_ids:
  - session_label_create
  - session_label_get_by_id
  - session_labels_list
- capability: sessions
  operations: 4
  operation_ids:
  - generate_session_recording_urls
  - session_get_by_id
  - session_recording_stream
  - sessions_list
- capability: sessions.full-summary
  operations: 1
  operation_ids:
  - session_full_summary_get_by_id
- capability: sessions.latency
  operations: 1
  operation_ids:
  - session_latency_get_by_id
- capability: sessions.timeline
  operations: 1
  operation_ids:
  - session_timeline_get_by_id
- capability: sessions.transcript
  operations: 1
  operation_ids:
  - session_transcript_get_by_id
- capability: takeouts
  operations: 3
  operation_ids:
  - takeouts_create
  - takeouts_get_by_job_id
  - takeouts_get_file
- capability: tools
  operations: 6
  operation_ids:
  - tool_create
  - tool_delete
  - tool_get_by_name
  - tool_history
  - tool_list
  - tool_update
- capability: users
  operations: 7
  operation_ids:
  - users_create
  - users_delete
  - users_delete_account
  - users_get_by_email
  - users_list
  - users_send_email
  - users_update
- capability: voice_groups
  operations: 6
  operation_ids:
  - voice_groups_create
  - voice_groups_create_voice_sample
  - voice_groups_delete
  - voice_groups_get_by_id
  - voice_groups_list
  - voice_groups_update
coverage:
  tools_named: 3
  tools_bound_to_rest: 0
  mcp_only: 3
  rest_operations_total: 176
  rest_operations_with_a_tool: 0
  binding_rate: 0.0
confidence_note: No mapping is asserted because none exists. The two surfaces are genuinely disjoint; inventing
  bindings between docs tools and platform operations would be fabrication.