> This is a page from the ElevenLabs documentation. For a complete page index, fetch https://elevenlabs.io/docs/llms.txt. For the full documentation in a single file, fetch https://elevenlabs.io/docs/llms-full.txt.

### Billing

- **Downgraded Plan Pricing Fix**: Fixed an issue where customers with downgraded subscriptions were shown their current price instead of the correct future price.

### Agents Platform

- **Edit Knowledge Base Document Names**: You can now edit the names of knowledge base documents.
  See: [Knowledge Base](/docs/eleven-agents/customization/knowledge-base)
- **Conversation Simulation**: Released a [new endpoint](/docs/eleven-agents/api-reference/agents/simulate-conversation) that allows you to test an agent over text

### ElevenCreative Studio

- **Export Paragraphs as Zip**: Added support for exporting separated paragraphs in a zip file.
  See: [ElevenCreative Studio](/docs/eleven-creative/products/studio)

### SDKs

- **Released new SDKs**:
  - [ElevenLabs Python v1.58.1](https://github.com/elevenlabs/elevenlabs-python)
  - [ElevenLabs JS v1.58.0](https://github.com/elevenlabs/elevenlabs-js)

### API

<Accordion title="View API changes">

#### New Endpoints

- [Update metadata for a speaker](/docs/api-reference/dubbing)
  `PATCH /v1/dubbing/resource/{dubbing_id}/speaker/{speaker_id}`
  Amend the metadata associated with a speaker, such as their voice. Both voice cloning and using voices from the ElevenLabs library are supported.

- [Search similar voices for a speaker](/docs/api-reference/dubbing)
  `GET /v1/dubbing/resource/{dubbing_id}/speaker/{speaker_id}/similar-voices`
  Fetch the top 10 similar voices to a speaker, including IDs, names, descriptions, and sample audio.

- [Simulate a conversation](/docs/api-reference/agents/simulate-conversation)
  `POST /v1/convai/agents/{agent_id}/simulate_conversation`
  Run a conversation between the agent and a simulated user.

- [Simulate a conversation (stream)](/docs/api-reference/agents/simulate-conversation-stream)
  `POST /v1/convai/agents/{agent_id}/simulate_conversation/stream`
  Stream a simulated conversation between the agent and a simulated user.

- [Handle outbound call via SIP trunk](/docs/api-reference/sip-trunk/outbound-call)
  `POST /v1/convai/sip-trunk/outbound-call`
  Initiate an outbound call using SIP trunking.

#### Updated Endpoints

- [List conversations](/docs/api-reference/conversations/get-conversations)
  `GET /v1/convai/conversations`
  Added `call_start_after_unix` query parameter to filter conversations by start date.

- [Update knowledge base document](/docs/api-reference/knowledge-base/update)
  `PATCH /v1/convai/knowledge-base/{documentation_id}`
  Now supports updating the name of a document.

- [Text to Speech endpoints](/docs/api-reference/text-to-speech/convert)
  The default model for all TTS endpoints is now `eleven_multilingual_v2` (was `eleven_monolingual_v1`).

#### Removed Endpoints

- None.

</Accordion>

> ElevenLabs provides APIs and SDKs for text to speech, voice cloning, speech to text, sound effects, voice isolator, voice changer, and conversational AI agents. Build voice-enabled applications with lifelike audio generation.