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Connect to everything your agents need, without writing the infrastructure to get there.

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ElevenLabs MCP Server
for AI Agents

Connect your AI agent to StackOne's ElevenLabs MCP server and give it 182 MCP tools out of the box. Auth, tool execution, and security all managed.

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ElevenLabs MCP Server
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182 Agent Actions

Agents can read, write, delete and run operations in ElevenLabs. Extend your agent's capabilities with custom actions.

MCP Actions → Build Actions →

Authentication

Agent Tool Authentication

Per-user OAuth in one call. Your ElevenLabs MCP server gets session-scoped tokens with zero credentials stored on your infra.

Agent Auth →

Security

Agent Protection

Every ElevenLabs tool response scanned for prompt injection in milliseconds, with 88.7% accuracy, all running on CPU.

Prompt Injection Defense →

Performance

Max Agent Context. Min Cost.

Free up to 96% of your agent's context window to enhance reasoning and reduce cost, on every ElevenLabs call.

Tools Discovery →

What is the ElevenLabs MCP Server?

A ElevenLabs MCP server lets AI agents read and write ElevenLabs data through the Model Context Protocol, Anthropic's open standard for connecting LLMs to external tools. StackOne's ElevenLabs MCP server ships with 182 pre-built actions, fully extensible via the Connector Builder, plus managed authentication, prompt injection defense, observability, and agent execution runtime. Connect it from MCP clients like Claude Desktop, Claude Code, Cursor, Goose, and VS Code, or from agent frameworks like OpenAI Agents SDK, LangChain, and Vercel AI SDK.

All ElevenLabs MCP Tools

Every StackOne action for ElevenLabs, ready for your agent. Read, write, delete and run operations, scoped to exactly what you need.

Agents

  • Create Agent

    Create an ElevenLabs conversational AI agent from a conversation configuration.

  • Get Agent

    Get an agent with its conversation configuration, platform settings and phone numbers.

  • List Agents

    List conversational AI agents with search, archive and creator filters.

  • Update Agent

    Update an agent name, conversation configuration, platform settings, tags or workflow.

  • Delete Agent

    Delete a conversational AI agent.

Tests

  • Create Test

    Create an agent test that checks a response, a tool call or a simulated conversation.

  • List Tests

    List agent response tests and test folders.

Test Invocations

  • Get Test Invocation

    Get the status and results of an agent test run.

  • List Test Invocations

    List past agent test runs.

Calls

  • List Batch Calls

    List the batch calling jobs in the workspace.

  • Get Batch Call

    Get a batch call with its status, schedule and per-recipient progress.

  • Delete Batch Call

    Permanently delete a batch call and all its recipient records.

Conversations

  • List Conversations

    List agent conversations with filters for agent, time range, duration, outcome, rating and more.

  • Get Conversation

    Get a conversation with its transcript, metadata and analysis.

  • Delete Conversation

    Delete a conversation and its transcript.

Knowledge Base Documents

  • List Knowledge Base Documents

    List knowledge base documents and folders with search, type and owner filters.

  • Get Knowledge Base Document

    Get a knowledge base document with its type, metadata, usage and content details.

  • Update Knowledge Base Document

    Rename a knowledge base document or folder, or replace the content of a text, URL or file document.

  • Delete Knowledge Base Document

    Delete a knowledge base document or folder.

Dubbings

  • Create Dubbing

    Dub an uploaded or linked audio or video file into another language.

  • Get Dubbing

    Get a dubbing project with its status, source language and target languages.

  • Delete Dubbing

    Delete a dubbing project.

History Items

  • Get History Item

    Get one generated history item, including its text, voice, model and settings.

  • Download History Items

    Download one or more generated history items as a single audio file or a zip archive, returned as a download.

  • Delete History Item

    Delete a generated audio item from the ElevenLabs history.

Unified Groups

  • List Unified Groups

    List unified user groups in an ElevenLabs workspace.

  • Get Unified Group

    Get a unified ElevenLabs user group by ID.

Unified Roles

  • List Unified Roles

    List unified roles (seat types) in an ElevenLabs workspace.

  • Get Unified Role

    Get a unified ElevenLabs role (seat type) by ID.

Unified Users

  • List Unified Users

    List unified users in an ElevenLabs workspace.

  • Get Unified User

    Get a unified ElevenLabs user by ID.

Music Finetunes

  • Create Music Finetune

    Create a music finetune, optionally with one audio file to train on.

  • List Music Finetunes

    List music finetunes you can use: your own, workspace-shared and ElevenLabs-curated.

  • Get Music Finetune

    Get one music finetune with its status and training progress.

  • Update Music Finetune

    Update the name, tags, primary genre or visibility of a music finetune.

  • Delete Music Finetune

    Permanently delete a music finetune you own.

Phone Numbers

  • Import Phone Number

    Import a Twilio, Exotel or SIP trunk phone number into the workspace for agent calls.

  • List Phone Numbers

    List the phone numbers imported into the workspace and the agents they are assigned to.

  • Get Phone Number

    Get a phone number with its provider, label, direction support and assigned agent.

  • Update Phone Number

    Update a phone number's assigned agent, label or SIP trunk settings.

  • Delete Phone Number

    Remove an imported phone number from the workspace.

Pronunciation Dictionarys

  • Get Pronunciation Dictionary

    Get a pronunciation dictionary with its latest version and rule count.

  • Update Pronunciation Dictionary

    Rename or archive a pronunciation dictionary.

Pronunciation Dictionary Rules

  • Add Pronunciation Dictionary Rules

    Add alias or phoneme rules to a pronunciation dictionary, creating a new version.

  • Set Pronunciation Dictionary Rules

    Replace all rules of a pronunciation dictionary with a new list, creating a new version.

  • Remove Pronunciation Dictionary Rules

    Remove rules from a pronunciation dictionary by the strings they replace, creating a new version.

Secrets

  • Create Secret

    Store a new workspace secret, such as an API key an agent tool needs.

  • List Secrets

    List the workspace secrets that agents, tools and phone numbers can reference.

  • Get Secret

    Get a workspace secret's name and the resources that use it.

  • Update Secret

    Rename a workspace secret and replace its value.

  • Delete Secret

    Delete a workspace secret that is no longer used.

Service Accounts

  • Create Service Account

    Create a service account in the ElevenLabs workspace.

  • Get Service Accounts

    List the ElevenLabs workspace's service accounts and their API keys.

Service Account API Keys

  • Create Service Account API Key

    Create an API key for a service account with chosen permissions.

  • Get Service Account API Keys

    List the API keys of one ElevenLabs service account.

  • Update Service Account API Key

    Enable, disable, rename or change the permissions and limits of a service account API key.

  • Delete Service Account API Key

    Delete an API key of a service account.

Speech Engines

  • Create Speech Engine

    Create a Speech Engine that connects ElevenLabs speech recognition and voices to your own WebSocket server.

  • List Speech Engines

    List Speech Engine resources, which add ElevenLabs speech recognition and voice to your own chat agent or LLM server.

  • Get Speech Engine

    Get the full configuration of one Speech Engine.

  • Update Speech Engine

    Update the settings of a Speech Engine; only the fields you send change.

  • Delete Speech Engine

    Permanently delete a Speech Engine.

Transcriptions

  • Create Transcription

    Transcribe an uploaded or linked audio or video file to text with word timestamps and optional speaker labels.

  • Get Transcription

    Get a previously generated speech-to-text transcript by its ID.

  • Delete Transcription

    Delete a previously generated speech-to-text transcript.

Tools

  • Create Tool

    Create a workspace tool (webhook, client, system or MCP) that agents can call.

  • List Tools

    List the workspace tools available to agents.

  • Get Tool

    Get a workspace tool with its configuration and usage statistics.

  • Update Tool

    Update the configuration of a workspace tool.

  • Delete Tool

    Delete a workspace tool so agents can no longer call it.

Voice Collections

  • Create Voice Collection

    Create a voice collection to group voices.

  • List Voice Collections

    List the voice collections you have access to, sorted by title.

  • Get Voice Collection

    Get the title, icon and your access role for one voice collection.

  • Update Voice Collection

    Change the title or icon of a voice collection.

  • Delete Voice Collection

    Delete a voice collection without deleting the voices in it.

Voices

  • Add Voice

    Create an instant voice clone from an uploaded audio recording.

  • Get Voice

    Get a voice with its samples, labels, settings and sharing details.

  • List Voices

    List voices available to the account, with search, filtering, sorting and pagination.

  • Delete Voice

    Delete a voice from your ElevenLabs voice library.

Shared Voices

  • Add Shared Voice

    Copy a voice from the public voice library into your voices.

  • List Shared Voices

    Search the public ElevenLabs voice library by category, gender, age, accent, language and use case.

PVC Voices

  • Create PVC Voice

    Create a Professional Voice Clone with metadata and no samples yet.

  • Update PVC Voice

    Change the name, language, description or labels of a Professional Voice Clone.

PVC Voice Samples

  • Update PVC Voice Sample

    Apply noise removal, select speakers, trim or rename a Professional Voice Clone sample.

  • Delete PVC Voice Sample

    Delete one audio sample from a Professional Voice Clone.

Workspace Groups

  • Get Workspace Groups

    List every user group in the ElevenLabs workspace with its members.

  • Search Workspace Groups

    Find ElevenLabs user groups by name, with their members' emails.

Workspace Group Members

  • Add Workspace Group Member

    Add a workspace member to an ElevenLabs user group by email.

  • Remove Workspace Group Member

    Remove a member from an ElevenLabs user group by email.

Workspace Auth Connections

  • Create Workspace Auth Connection

    Create an auth connection that agent tools use to authenticate to external APIs.

  • Get Workspace Auth Connections

    List the auth connections agents and tools use to call external APIs.

  • Update Workspace Auth Connection

    Update an auth connection's provider or credentials.

  • Delete Workspace Auth Connection

    Delete a workspace auth connection.

Invite Users

  • Invite User

    Invite someone to the ElevenLabs workspace by email.

  • Invite Users

    Invite several people to the ElevenLabs workspace by email in one call.

Workspace Webhooks

  • Create Workspace Webhook

    Create an HMAC-signed webhook for the ElevenLabs workspace.

  • List Workspace Webhooks

    List the webhooks configured for the ElevenLabs workspace.

  • Update Workspace Webhook

    Rename, enable or disable a workspace webhook and set its events.

  • Delete Workspace Webhook

    Delete a workspace webhook.

Other (83)

  • Create Audio Native Project

    Create an Audio Native project that narrates an article and returns an embeddable player snippet.

  • Send Conversation Feedback

    Rate a conversation as liked or disliked.

  • Create Knowledge Base Document From URL

    Scrape a web page into a knowledge base document that agents can use.

  • Create Knowledge Base Document From Text

    Create a knowledge base document from plain text.

  • Create Knowledge Base Document From File

    Create a knowledge base document by uploading a file such as a PDF.

  • Create Knowledge Base Folder

    Create a folder in the knowledge base to organise documents.

  • Create Forced Alignment

    Align an audio file with its known transcript and return timing for every character and word.

  • Create Music Plan

    Generate a structured music composition plan (styles, sections or chunks, durations, lyrics) from a text prompt.

  • Upload Music

    Upload a song so it can be referenced for inpainting, optionally extracting its composition plan.

  • Create Pronunciation Dictionary From Rules

    Create a pronunciation dictionary from alias or phoneme rules.

  • Create Pronunciation Dictionary From File

    Create a pronunciation dictionary from a lexicon .pls file.

  • Create Sound Effect

    Generate a short non-musical sound effect (for example a doorbell or footsteps) from a text prompt and return the audio file as a download.

  • Create Dialogue

    Convert a list of text and voice pairs into one multi-speaker dialogue audio file, returned as a download.

  • Create Dialogue With Timing

    Convert a list of text and voice pairs into dialogue audio with character-level timing and voice segments.

  • Create Speech

    Convert text to speech with a chosen voice and return the audio file as a download.

  • Create Speech With Timing

    Convert text to speech with a chosen voice and return base64 audio plus character-level timing.

  • Create Voice From Preview

    Save a generated voice preview as a voice in your voice library.

  • Create Single Use Token

    Create a time-limited single-use token that a frontend client can use instead of the API key.

  • Add Voice To Collection

    Add a voice to a voice collection.

  • Add Samples To PVC Voice

    Upload an audio sample to a Professional Voice Clone.

  • Query Agent Knowledge Base RAG

    Run an agent's knowledge base retrieval for a query and return the chunks it would use.

  • List Audio Isolation History

    List your audio isolation (voice isolator) generations, newest first.

  • Get Audio Native Settings

    Get the player settings and status of an Audio Native project.

  • Export Batch Call Results

    Export all recipients and conversation results of a finished batch call as CSV.

  • Search Knowledge Base

    Fuzzy text search across the content of knowledge base documents.

  • Get Dependent Agents For Documents

    List the agents that use any of the given knowledge base documents or folders.

  • List Dubs

    List dubbing projects in the workspace, with status and language filters.

  • Get Dubbed File

    Download the dubbed audio or video for one target language.

  • Get Dubbing Transcript

    Get the transcript of a dub in one language as SRT, WebVTT or JSON.

  • List Generated Items

    List text-to-speech and other generated audio items in the ElevenLabs history, newest first.

  • Get History Item Audio

    Download the generated audio of one history item as an MP3 file.

  • Get Unified Credentials

    Get the current ElevenLabs connection's unified credentials and identity.

  • List Models

    List the available ElevenLabs models with their languages, limits and capabilities.

  • List Pronunciation Dictionaries

    List the pronunciation dictionaries you can access.

  • Get Pronunciation Dictionary Version

    Download the rules of a pronunciation dictionary version as a PLS file.

  • List Audio Effects

    List the filter presets, reverb environments and background noises available for audio_effects.

  • Get Voice Preview Audio

    Download the audio of one voice preview generated by design_voice or remix_voice.

  • Get User

    Get the ElevenLabs user who owns the connection's API key.

  • Get User Subscription

    Get the subscription tier, character usage and limits for the API key owner.

  • Get Default Voice Settings

    Get the default stability, similarity, style and speed settings used for voices.

  • Get Voice Settings

    Get the stability, similarity boost, style and speed settings saved for a voice.

  • List Voices (Legacy)

    List every voice available to the user in one response (legacy endpoint).

  • Get Voice Accents

    List the accents available in the shared voice library.

  • List Similar Voices

    Find shared library voices that sound like an uploaded audio sample.

  • Get PVC Verification Captcha

    Get the verification captcha text for a Professional Voice Clone.

  • Get Voice Sample Audio

    Download the audio of one sample attached to a voice.

  • Get PVC Voice Sample Audio

    Get the first 30 seconds of a Professional Voice Clone sample as base64 audio.

  • Get PVC Voice Sample Waveform

    Get the visual waveform data of a Professional Voice Clone sample.

  • Get PVC Speaker Separation Status

    Get the speaker separation status of a Professional Voice Clone sample and the detected speakers.

  • Get PVC Separated Speaker Audio

    Get the separated audio of one speaker in a Professional Voice Clone sample.

  • Get Workspace Members

    List every member of the ElevenLabs workspace with their seat type.

  • Get Workspace Resource

    Get who a shared ElevenLabs workspace resource is shared with, and with which role.

  • List Audit Logs

    List workspace audit log entries, newest first, with time and actor filters.

  • Get Workspace Usage

    Get workspace credit usage over time, bucketed and optionally grouped by product, model, voice or user.

  • List API Requests

    List the API requests made in the workspace, with time range, column filters and search.

  • Update Audio Native Content

    Replace the article content of an Audio Native project with an uploaded txt or HTML file.

  • Update Audio Native Content From URL

    Refresh the Audio Native project linked to a web page from that page, then convert and publish it.

  • Update Member

    Lock, unlock or change the seat type of a workspace member.

  • Set API Key Third-Party Disabling Policy

    Set the workspace-wide policy on whether API key holders may disable their keys.

  • Delete Audio Isolation History Item

    Delete one audio isolation generation and its media files.

  • Remove Voice From Collection

    Remove a voice from a voice collection without deleting the voice.

  • Delete Voice Sample

    Delete one audio sample from a cloned voice.

  • Delete Existing Invitation

    Cancel a pending workspace invitation by email.

  • Duplicate Agent

    Create a copy of an existing agent, optionally with a new name.

  • Bulk Move Tests To Folder

    Move several agent tests or test folders into another folder.

  • Run Agent Tests

    Run one or more saved tests against an agent.

  • Submit Batch Call

    Submit a batch of outbound agent calls to a list of recipients, now or at a scheduled time.

  • Cancel Batch Call

    Cancel a running or scheduled batch call, stopping calls not yet placed.

  • Retry Batch Call

    Call the failed and no-response recipients of a batch call again.

  • Bulk Move Knowledge Base Documents

    Move several knowledge base documents or folders into another folder.

  • Bulk Delete Knowledge Base Documents

    Delete several knowledge base documents or folders in one call.

  • Compose Music

    Compose a song, jingle or background track from a text prompt or a composition plan and return the audio file as a download.

  • Duplicate Speech Engine

    Create a copy of an existing Speech Engine with the same settings.

  • Design Voice

    Generate voice previews from a text description of the voice you want.

  • Remix Voice

    Generate voice previews that change an existing voice according to a text prompt.

  • Edit Voice Settings

    Update the saved stability, similarity boost, style, speaker boost and speed settings of a voice.

  • Verify PVC Verification Captcha

    Submit a recording of the captcha to verify a Professional Voice Clone.

  • Edit Voice

    Rename a voice you created, change its description or labels, or add an audio sample.

  • Start PVC Speaker Separation

    Start detecting and separating the speakers in a Professional Voice Clone sample.

  • Train PVC Voice

    Start training a Professional Voice Clone on its samples.

  • Request PVC Manual Verification

    Request manual verification of a Professional Voice Clone by uploading a verification document.

  • Share Workspace Resource

    Grant a user, group or service account API key a role on an ElevenLabs workspace resource.

  • Unshare Workspace Resource

    Remove a user's, group's or service account API key's role on an ElevenLabs workspace resource.

Set Up Your ElevenLabs MCP Server in Minutes

One endpoint. Any framework. Your agent is talking to ElevenLabs in under 10 lines of code.

MCP Clients

Claude Desktop setup guide
Claude Code setup guide
Cursor setup guide
Goose setup guide

Agent Frameworks

Claude Desktop
{
  "mcpServers": {
    "stackone": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote@latest",
        "https://api.stackone.com/mcp?x-account-id=<account_id>",
        "--header",
        "Authorization: Basic <YOUR_BASE64_TOKEN>"
      ]
    }
  }
}

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Platform Resources

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Benchmarking BM25, TF-IDF, and hybrid search for MCP tool discovery across 916 tools. The 80/20 TF-IDF/BM25 hybrid hits 21% Top-1 accuracy in under 1ms.

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Indirect Prompt Injection Defense for MCP Tools: A Technical Guide

MCP tools that read emails, CRM records, and tickets are indirect prompt injection vectors. Here's how we built a two-tier defense that scans tool results in ~11ms.

12 min

MCP vs A2A: Architecture, Security, and When to Use Each

MCP vs A2A: what each protocol standardizes, how they differ, the security risks they share, and when to use one, both or a hybrid.

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MCP vs API: What Hundreds of Connector Builds Taught Us

MCP wraps APIs, it doesn't replace them. After building hundreds of connectors that serve both, here's when each approach wins.

14 min read

ElevenLabs MCP Server FAQ

Does StackOne have a ElevenLabs MCP server?
Yes. StackOne offers a managed ElevenLabs MCP server with 182 pre-built actions, and every action is tested and QA'd by StackOne. Connect it to Claude, Cursor, and any other MCP client, or to any agent framework through the AI Action SDK. It ships with managed agent authentication, prompt injection defense, and tool discovery with server-side execution that preserve your agent's context window and keep reasoning performance.
ElevenLabs MCP server vs direct API integration: what's the difference?
A ElevenLabs MCP server and direct API integration serve different use cases. Direct API integration is for software-to-software work, where backend code calls ElevenLabs. A ElevenLabs MCP server is for AI agents that discover and call ElevenLabs at runtime, such as MCP clients like Claude and Cursor, plus framework agents built with OpenAI, LangChain, or Vercel AI. StackOne provides both.
How does ElevenLabs authentication work for AI agents?
ElevenLabs authentication for AI agents works through a StackOne Connect Session. Create one via the dashboard or the SDK to get an auth link and ready-to-paste config for Claude Desktop, Cursor, and other MCP clients. Your user authenticates their own ElevenLabs account; StackOne handles token exchange, storage, and refresh. Credentials never reach the LLM, and each user is isolated via origin_owner_id.
Are ElevenLabs MCP tools vulnerable to prompt injection?
Yes. ElevenLabs MCP tools can be vulnerable to indirect prompt injection. Any tool that reads user-written content, such as documents, messages, tickets, records, or free-text fields, is a potential vector. StackOne Defender scans every tool response before it enters the agent's context. It runs regex patterns in ~1ms, then a MiniLM classifier in ~4ms. Accuracy is 88.7%, and it runs entirely on CPU.
What is the context bloat of a ElevenLabs agent and how do I avoid it?
Context bloat happens when ElevenLabs tool schemas and API responses eat your ElevenLabs agent's memory, preventing it from reasoning effectively. A single ElevenLabs query can return a massive JSON response, and connecting multiple tools compounds the problem. Tools Discovery reduces it by loading only the tools relevant to each query.
Can I limit which actions my ElevenLabs agent can access?
Yes. You can limit which actions your ElevenLabs agent can access directly from the StackOne dashboard. Toggle actions on or off, or restrict them to specific accounts, with no code changes to your agent. Session tokens can be scoped to exact actions so if one leaks, exposure stays contained.
Can I create custom agent actions for my ElevenLabs MCP server?
Yes. You can create custom agent actions for your ElevenLabs MCP server using Connector Builder. It's an integration agent your coding assistant (Claude Code, Cursor, or Copilot) can invoke to research ElevenLabs's API, generate production-ready connector YAML, test against the live API, and validate before you ship.
When should I NOT use a ElevenLabs MCP server?
Skip a ElevenLabs MCP server if your integration is purely software-to-software, because direct ElevenLabs API integration is simpler when no AI agent is involved. For deterministic, compliance-critical operations (financial transactions, regulatory reporting), direct API gives you predictable behavior without agent-driven decision-making. MCP shines when AI agents need to dynamically discover and call ElevenLabs actions at runtime.
What AI frameworks and AI clients does the StackOne ElevenLabs MCP server support?
The StackOne ElevenLabs MCP server supports both. MCP clients (paste-and-go apps): Claude Desktop, Claude Code, Cursor, VS Code, Goose. Agent frameworks (code SDKs you build with): OpenAI Agents SDK, Anthropic, Vercel AI, Google ADK, CrewAI, Pydantic AI, LangChain, LangGraph, Azure AI Foundry.

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