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Fixie

Fixie tools API

The tools API from Fixie — 4 operation(s) for tools.

Documentation Provider Profile APIs.io OpenAPI GitHub

Fixie tools API is one of 14 APIs that Fixie publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Tools. The published artifact set on APIs.io includes an OpenAPI specification, authentication docs, and an AsyncAPI specification.

This API exposes 7 operations across 4 paths, and defines 68 schemas. It is described by OpenAPI 3.0.3, at version 0.1.0.

Requests are made against a single base URL, https://api.ultravox.ai.

7 operations 4 paths 68 schemas 1 DELETE3 GET2 POST1 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
0.1.0
Base URL
https://api.ultravox.ai/api
Authentication
API Key
Resource Areas
1

Authentication & Security 1

Fixie tools API declares 1 security scheme for authenticating requests. An API key is passed in the header as X-API-Key (apiKeyAuth).

  • apiKeyAuth — API key

Paths & Operations 7

Across 4 paths, the API surfaces 7 operations — 1 DELETE, 3 GET, 2 POST, 1 PUT. Each is listed below with its method, path, parameters, and response codes.

tools 7
GET
/api/tools
List tools available to your account.
tools_list 5 params → 200
POST
/api/tools
tools_create body → 201
GET
/api/tools/{tool_id}
tools_retrieve 1 param → 200
PUT
/api/tools/{tool_id}
tools_update 1 param body → 200
DELETE
/api/tools/{tool_id}
tools_destroy 1 param → 204
GET
/api/tools/{tool_id}/history
tools_history_list 3 params → 200
POST
/api/tools/{tool_id}/test
Test a tool by executing it with the provided parameters.
tools_test_create 1 param → default

Schemas 68

The contract defines 68 schemas that model the data the API accepts and returns. The most detailed are Call (41 properties), ultravox.v1.EnabledDataMessages (13 properties), ultravox.v1.BaseToolDefinition (13 properties), ultravox.v1.ElevenLabsVoice (11 properties). Each schema is shown below with its type and property counts.

ToolHistory
object
2 properties 2 required
ultravox.v1.HttpAuthRequirement
object
A security requirement that will cause an HTTP authentication header to be added.
1 property
ultravox.v1.ElevenLabsVoice_PronunciationDictionaryReference
object
A reference to a pronunciation dictionary within ElevenLabs.
2 properties
ultravox.v1.LmntVoice
object
Specification for a voice served by LMNT.
4 properties
ultravox.v1.CallMedium_WebSocketMedium
object
Details for a WebSocket call.
5 properties
EndReasonEnum
string
unjoined - Client never joined hangup - Client hung up agenthangup - Agent hung up timeout - Call timed out connectionerror - Connection error systemerror - Sy…
ultravox.v1.CallMedium_WebRtcMedium
object
Details for a WebRTC call.
1 property
ultravox.v1.CartesiaVoice_CartesiaGenerationConfig
object
Cartesia generation configuration for Sonic-3 and later models.
4 properties
InitialOutputMediumEnum
string
ultravox.v1.PlivoMedium_OutgoingRequestParams
object
Parameters for a Plivo call creation request.
3 properties
Call
object
41 properties 23 required
ultravox.v1.ExternalVoice
object
A voice not known to Ultravox Realtime that can nonetheless be used for a call. Such voices are significantly less validated than normal voices and you'll be r…
7 properties
ultravox.v1.TwilioMedium_OutgoingRequestParams
object
Parameters for a Twilio call creation request.
3 properties
ultravox.v1.StaticToolResponse
object
A predefined, static response for a tool. When a tool has a static response, it can be returned immediately, without waiting for full tool execution.
1 property
ultravox.v1.BaseHttpToolDetails
object
Details for invoking a tool via HTTP.
2 properties
ultravox.v1.EnabledDataMessages
object
Whether certain data messages are enabled for a connection.
13 properties
ultravox.v1.DataConnectionConfig
object
Data connection enables an auxiliary websocket for streaming data messages.
4 properties
ultravox.v1.DynamicParameter
object
A dynamic parameter the tool accepts that may be set by the model.
4 properties
ultravox.v1.GenericVoice
object
Specification for a voice served by some generic REST-based TTS API. The API must accept an application/json POST request (as defined below) and return either…
8 properties
RetentionPolicyEnum
string
retain - Retain indefinitely autodelete - Auto-delete after billing
ultravox.v1.BaseToolDefinition
object
The base definition of a tool that can be used during a call. Exactly one implementation (http or client) should be set.
13 properties
ultravox.v1.TimedMessage
object
A message the agent should say after some duration. The duration's meaning varies depending on the context.
3 properties
ultravox.v1.HeaderApiKeyRequirement
object
A security requirement that will cause an API key to be added to the header.
1 property
ultravox.v1.CallMedium_DtmfUserTextMessage
object
Configures DTMF digits to be sent as a user text message.
2 properties
ultravox.v1.CallMedium_ExotelMedium
object
Details for a Exotel call.
1 property
ultravox.v1.Callback
object
A lifecycle callback configuration.
2 properties
google.protobuf.Value
Represents a dynamically typed value which can be either null, a number, a string, a boolean, a recursive struct value, or a list of values.
ultravox.v1.CallMedium
object
Details about a call's protocol. By default, calls occur over WebRTC using the Ultravox client SDK. Setting a different call medium will prepare the server for…
7 properties
ultravox.v1.AutomaticParameter
object
A parameter that is automatically set by the system.
3 properties
ultravox.v1.CallMedium_DtmfHandling
object
Configuration for how incoming DTMF digits are handled during a call. When dtmfhandling is absent from the enclosing medium, DTMF digits are sent as a user tex…
2 properties
CallSipDetails
object
2 properties 2 required
FirstSpeakerEnum
string
ultravox.v1.StaticParameter
object
A static parameter that is unconditionally added when the tool is invoked. This parameter is not exposed to or set by the model.
3 properties
ultravox.v1.FirstSpeakerSettings_AgentGreeting
object
Additional properties for when the agent speaks first.
4 properties
ultravox.v1.ElevenLabsVoice
object
Specification for a voice served by ElevenLabs.
11 properties
OwnershipEnum
string
ultravox.v1.CallMedium_PlivoMedium
object
Details for a Plivo call.
2 properties
ultravox.v1.ToolRequirements
object
The requirements for using a tool, which must be satisfied when creating a call with the tool.
2 properties
PaginatedToolHistoryList
object
4 properties 1 required
ultravox.v1.CartesiaVoice
object
Specification for a voice served by Cartesia. See https://docs.cartesia.ai/api-reference/tts/websocket
6 properties
PaginatedToolList
object
4 properties 1 required
ultravox.v1.SipMedium_SipOutgoing
object
Details for an outgoing SIP call.
4 properties
NullEnum
ultravox.v1.RespeecherVoice
object
Specification for a voice served by Respeecher. See https://space.respeecher.com/docs/api/tts/sampling-params-guide for parameter guidance.
10 properties
BillingStatusEnum
string
BILLINGSTATUSPENDING - The call hasn't been billed yet, but will be in the future. This is the case for ongoing calls for example. (Note: Calls created before…
ultravox.v1.QueryApiKeyRequirement
object
A security requirement that will cause an API key to be added to the query string.
1 property
ultravox.v1.InworldVoice
object
Specification for a voice served by Inworld.
5 properties
ultravox.v1.GoogleVoice
object
Specification for a voice served by Google. This implementation uses bidirectional streaming, so voices prior to Chirp3 are not supported.
2 properties
ultravox.v1.SecurityRequirement
object
A single security requirement that must be met for a tool to be available. Exactly one of queryapikey, headerapikey, or httpauth should be set.
3 properties
TerminationReasonEnum
string
ultravox.v1.BaseClientToolDetails
object
Details for invoking a tool expected to be implemented by the client.
ultravox.v1.Callbacks
object
Configuration for call lifecycle callbacks.
3 properties
ultravox.v1.CallMedium_TelnyxMedium
object
Details for a Telnyx call.
2 properties
ultravox.v1.FirstSpeakerSettings
object
Settings for the initial message to get a conversation started. Exactly one of user or agent should be set. The default is agent (unless firstSpeaker is also s…
2 properties
ultravox.v1.DataConnectionAudioConfig
object
Configuration for audio in data connections
2 properties
ultravox.v1.VadSettings
object
Call-level VAD settings.
4 properties
ultravox.v1.CallMedium_SipMedium
object
Details for a SIP call. Exactly one of incoming or outgoing must be set.
2 properties
ultravox.v1.CallMedium_TwilioMedium
object
Details for a Twilio call.
2 properties
ultravox.v1.TelnyxMedium_OutgoingRequestParams
object
Parameters for a Telnyx call creation request.
3 properties
ultravox.v1.BaseDataConnectionToolDetails
object
Details for invoking a tool via a data connection.
ultravox.v1.FirstSpeakerSettings_UserGreeting
object
Additional properties for when the user speaks first.
1 property
Tool
object
5 properties 5 required
AgentBasic
object
2 properties 2 required
ultravox.v1.UltravoxCallTokenRequirement
object
A security requirement that will automatically be fulfilled during call creation. The generated token will be set as an X-Ultravox-Call-Token header when the t…
1 property
ultravox.v1.SecurityOptions
object
The different options for satisfying a tool's security requirements.
1 property
ultravox.v1.SecurityRequirements
object
The security requirements for a request. All requirements must be met.
2 properties
ultravox.v1.SipMedium_SipIncoming
object
Details for an incoming SIP call.
ultravox.v1.FallbackAgentGreeting
object
A fallback for the case when the user is expected to speak first but doesn't.
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

fixie-tools-api-openapi.yml Raw ↑

Other APIs Fixie publishes across the network.

Fixie accounts API
AE Profile APIs.io
Fixie agents API
AE Profile APIs.io
Fixie api_keys API
AE Profile APIs.io
Fixie call_throttles API
AE Profile APIs.io
Fixie calls API
AE Profile APIs.io
Fixie corpora API
AE Profile APIs.io
Fixie deleted_calls API
AE Profile APIs.io
Fixie models API
AE Profile APIs.io
Fixie schema API
AE Profile APIs.io
Fixie sip API
AE Profile APIs.io
Fixie telephony_configs API
AE Profile APIs.io
Fixie voices API
AE Profile APIs.io
#Tools
← Back to F APIs
API Details
ID
fixie:fixie-tools-api
Base URL
https://api.ultravox.ai/api
Docs
https://docs.ultravox.ai/
Provider
Fixie
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