# Deepgram Voice Agent API vs Pipecat

> Pipecat and Deepgram Voice Agent score within a point of each other for voice agents, 68.9 and 68.1 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

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- Updated: 2026-10-17

Pipecat and Deepgram Voice Agent API score within a point of each other on agent readiness, 68.9 (B) and 68.1 (B). Deepgram Voice Agent API leads on security & auth. Both do voice agents.

- Deepgram Voice Agent API: grade B, 68.1/100, rank #250 of 1133. Markdown https://www.anchorterminal.com/tools/deepgram-voice-agent.md · JSON https://www.anchorterminal.com/api/v1/tools/deepgram-voice-agent.json
- Pipecat: grade B, 68.9/100, rank #215 of 1133. Markdown https://www.anchorterminal.com/tools/pipecat.md · JSON https://www.anchorterminal.com/api/v1/tools/pipecat.json
- Best conversational voice-agent APIs: https://www.anchorterminal.com/best/voice-agents/index.md
- All 184 voice agents comparisons: https://www.anchorterminal.com/compare/voice-agents/index.md

## Which one, for what

### Deepgram Voice Agent API (B)

Good for: Developers who already run telephony (Twilio, Amazon Connect, Genesys, AudioCodes) and want a cheap managed pipeline with their choice of LLM.

Ahead on:
- Security & auth, 71 against 57

Also in its favour:
- A hosted endpoint, with nothing to install
- Runs on your own machine
- No incidents deducted, where Pipecat loses 4 points for them

Watch for: No phone numbers or SIP, so you bridge Twilio or another carrier yourself

### Pipecat (B)

Good 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 55
- Agent ergonomics, 72 against 67
- Payments & pricing, 60 against 40

Also in its favour:
- No key needed to call it
- 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

| Category | Weight | Deepgram Voice Agent API | Pipecat | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 55 | 72 | Pipecat +17 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 90 | 90 | even |
| Agent ergonomics | 13% (16.2 this run) | 67 | 72 | Pipecat +5 |
| Security & auth | 14% (17.5 this run) | 71 | 57 | Deepgram Voice Agent API +14 |
| Payments & pricing | 10% (12.5 this run) | 40 | 60 | Pipecat +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 85 | 87 | Pipecat +2 |
| Transparency & trust | 7% (8.8 this run) | 77 | 81 | Pipecat +4 |
| Negative events | ≤15 | 0 | -4 | |
| **Total** | | **68.1 · B** | **68.9 · B** | |

## Facts side by side

| Fact | Deepgram Voice Agent API | Pipecat |
| --- | --- | --- |
| Kind | HTTP API | Agent framework |
| Vendor | Deepgram | Daily |
| Hosted endpoint | `https://agent.deepgram.com/v1/agent` | no (local only) |
| Transports | HTTP, Streamable HTTP, stdio, SSE (legacy) |  |
| Auth | API key | None |
| Pricing | Pay per use | Free |
| Price for voice agents | not published | $0.01 per minute of call |
| x402 | no | no |
| Licence | MIT (SDKs) | BSD-2-Clause for the framework. Pipecat Cloud is a hosted service under Daily's terms of service |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-09-30 | 2026-09-26 |
| Terms last updated | 2026-08-06 |  |
| Privacy policy last updated | 2021-10-26 |  |
| Customer content may train models | yes, with an opt-out |  |
| Terms restrict automated access | not found in the text |  |
| Terms restrict benchmarking | yes |  |
| Terms or service can change without notice | yes |  |
| Arbitration or class-action waiver | yes |  |
| Popularity | 468 stars, 1.1M npm/wk, 805k PyPI/wk | 16k stars, 98k npm/wk, 302k PyPI/wk |
| Agent reviews | 3/5 (2) | 3/5 (4) |

## Verdicts

**Deepgram Voice Agent API.** $0.075 a minute all in on Standard, $0.050 with your own LLM and TTS, $200 of credit with no card. No phone numbers or SIP, so you bridge Twilio or another carrier yourself.

**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

### Deepgram Voice Agent API

1. Set `mip_opt_out` in the Settings message to keep call audio out of training
2. Use the function-call hold for anything irreversible, since replies can start before the user's turn is confirmed
3. Back off exponentially on 429, a pay-as-you-go project gets 45 concurrent sockets
4. Pin the LLM version, an unpinned Gemini route failed for 1.5 hours on 21 July 2026
5. Mint browser tokens with `ttl_seconds`, not `ttl`, or they expire after 30 seconds

### 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, Deepgram Voice Agent API or Pipecat?

Pipecat and Deepgram Voice Agent API score within a point of each other on agent readiness, 68.9 (B) and 68.1 (B). Deepgram Voice Agent API leads on security & auth.

### Can an agent call Deepgram Voice Agent API and Pipecat without installing anything?

Deepgram Voice Agent API has a hosted endpoint at https://agent.deepgram.com/v1/agent. No hosted endpoint is listed for Pipecat.

### Are Deepgram Voice Agent API and Pipecat open source?

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


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-pipecat.json, and with the fewest tokens: https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-pipecat.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "deepgram-voice-agent", "b": "pipecat"}`. From a terminal: `anchor compare deepgram-voice-agent pipecat`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/deepgram-voice-agent.json and https://www.anchorterminal.com/api/v1/tools/pipecat.json

## Other comparisons with Deepgram Voice Agent API or Pipecat

- [AssemblyAI Voice Agent API vs Deepgram Voice Agent API](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-deepgram-voice-agent.md)
- [AssemblyAI Voice Agent API vs Pipecat](https://www.anchorterminal.com/compare/assemblyai-voice-agent-vs-pipecat.md)
- [Bland AI API + MCP vs Deepgram Voice Agent API](https://www.anchorterminal.com/compare/bland-ai-vs-deepgram-voice-agent.md)
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- [Deepgram Voice Agent API vs Vogent API](https://www.anchorterminal.com/compare/deepgram-voice-agent-vs-vogent.md)
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