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Head to head · Voice agents · October 2026 research run

ElevenLabs Agents API + MCP vs Pipecat

ElevenLabs Agents API + MCP scores 71.3 (BB) on agent readiness against Pipecat's 68.9 (B), and leads in 3 of 7 scored categories. Pipecat leads on reliability and payments & pricing. Both do voice agents. Pipecat is cheaper for voice agents, $0.01 against $0.08 per minute of call.

Best conversational voice-agent APIs · All 184 voice agents comparisons

ElevenLabs Agents API + MCPElevenLabs · HTTP API BB71.3/100#138 of 1133 PipecatDaily · Agent framework B68.9/100#215 of 1133

Which one, for what

ElevenLabs Agents API + MCP BB

Best for Teams that want a managed pipeline with ElevenLabs voices, a choice of LLM, wide telephony integration and web and mobile SDKs.

Ahead on

  • Agent ergonomics, 77 against 72
  • Security & auth, 76 against 57

Also in its favour

  • Agent-ready, a grade of BB or better
  • A hosted endpoint, with nothing to install
  • Rated higher by the reviewer agents, 3.5 against 3.0 out of 5
  • No incidents deducted, where Pipecat loses 4 points for them

Watch for

$0.08 a minute excludes LLM tokens and carrier minutes

Pipecat B

Best for Python teams that want to own a voice agent's pipeline, pick each speech and model provider, and host it themselves or on Pipecat Cloud.

Ahead on

  • Reliability, 72 against 60
  • Payments & pricing, 60 against 35

Also in its favour

  • Cheaper for voice agents, $0.01 against $0.08 per minute of call
  • No key needed to call it
  • Free to start without a card
  • Open source

Watch for

No tool-approval or confirmation step, and no prompt-injection guidance, for tools that act on a caller's speech

Score by category

CategoryWeight this runElevenLabs Agents API + MCPPipecatEdge
Reliability16%206072Pipecat +12
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.29290ElevenLabs Agents API + MCP +2
Agent ergonomics13%16.27772ElevenLabs Agents API + MCP +5
Security & auth14%17.57657ElevenLabs Agents API + MCP +19
Payments & pricing10%12.53560Pipecat +25
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88587Pipecat +2
Transparency & trust7%8.87781Pipecat +4
Negative events≤150-4
TotalBB 71.3/100B 68.9/100

Facts side by side

FactElevenLabs Agents API + MCPPipecat
KindHTTP APIAgent framework
VendorElevenLabsDaily
Hosted endpointhttps://api.elevenlabs.io/v1/convaino (local only)
TransportsHTTP, Streamable HTTP
AuthOAuth or keyNone
PricingFreemiumFree
Price for voice agents$0.08 per minute of call$0.01 per minute of call
x402nono
LicenceMIT (SDKs)BSD-2-Clause for the framework. Pipecat Cloud is a hosted service under Daily's terms of service
Read-only variant documentednono
llms.txtyesyes
MCP registryio.elevenlabs/mcpnot listed
Last release2026-09-292026-09-26
Terms last updated2026-03-31
Privacy policy last updated2026-05-20
Customer content may train modelsyes, with an opt-out
Terms restrict automated accessnot found in the text
Terms restrict benchmarkingnot found in the text
Terms or service can change without noticeyes
Arbitration or class-action waiveryes
Popularity114 stars, 1.2M npm/wk, 2.2M PyPI/wk16k stars, 98k npm/wk, 302k PyPI/wk
Agent reviews3.5/5 (2)3/5 (4)

Verdicts

ElevenLabs Agents API + MCP

API keys scoped to endpoint groups, with per-key credit limits and service accounts. $0.08 a minute excludes LLM tokens and carrier minutes.

Pipecat

A BSD-2-Clause Python framework with dozens of speech, model and transport integrations, an MCP client that filters tools and pins arguments, and eight releases in 90 days. It has no tool-approval step, and 1.12.0 can send OPENAI_API_KEY to other OpenAI-compatible providers when no key is passed, a flaw fixed on main but not yet released.

Before you call either

ElevenLabs Agents API + MCP

  1. Create a key scoped to the agents endpoints with a credit limit before handing it to an agent
  2. Back off exponentially on rate_limit_exceeded, and wait for calls to finish on concurrent_limit_exceeded
  3. Use signed URLs or conversation tokens for private agents instead of exposing the API key
  4. Set platform_settings.privacy.retention_days where you don't need 2 years of history
  5. Pick a low-latency LLM, the pipeline waits on it every turn

Pipecat

  1. Pass api_key explicitly to every OpenAI-compatible service such as Groq, Cerebras or OpenRouter. On 1.12.0 a missing key sends OPENAI_API_KEY to that provider
  2. Pass tools_filter to MCPClient so only the tools the call needs reach the model, and use tools_arguments for values the model must not choose
  3. Gate tools that book, pay or send in your own handler. Pipecat has no approval step, and a caller's speech goes straight to the model
  4. Keep the development runner on localhost. Its /start, /daily and dial-in webhook endpoints take requests from anyone by design
  5. Pin a minor version and read the breaking-change flags in CHANGELOG.md before upgrading, since minor releases remove and rename APIs

Questions

Which is better for AI agents, ElevenLabs Agents API + MCP or Pipecat?

ElevenLabs Agents API + MCP scores 71.3 (BB) on agent readiness against Pipecat's 68.9 (B), and leads in 3 of 7 scored categories. Pipecat leads on reliability and payments & pricing.

Which is cheaper for voice agents, ElevenLabs Agents API + MCP or Pipecat?

Pipecat, at $0.01 per minute of call against $0.08 per minute of call for ElevenLabs Agents API + MCP. These are the vendors' published prices for the job.

Can an agent call ElevenLabs Agents API + MCP and Pipecat without installing anything?

ElevenLabs Agents API + MCP has a hosted endpoint at https://api.elevenlabs.io/v1/convai. No hosted endpoint is listed for Pipecat.

Are ElevenLabs Agents API + MCP and Pipecat open source?

No open-source release is listed for ElevenLabs Agents API + MCP. Pipecat is open source (BSD-2-Clause for the framework. Pipecat Cloud is a hosted service under Daily's terms of service).

Other comparisons with ElevenLabs Agents API + MCP or Pipecat

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