# Text to speech API for AI agents

Scrollport gives AI agents 2 tools to turn text into speech, from ElevenLabs, through one connection. Prices run from $0.0700/1k chars · $0.0025 minimum/call to $0.1400/1k chars · $0.0025 minimum/call, paid per use from one prepaid wallet with no subscription, provider accounts or API keys. Agents use them over MCP, the CLI or the HTTP API.

Updated 13 September 2026

## Generate speech with Scrollport

[Get started](https://scrollport.com/start)

Use verified tools with pay-per-use pricing. Provider access is included. Tools that work in your own apps ask you to connect that account.

Connect your first agent to receive $1 trial credit.

## Compare Text to speech API tools

The lowest listed price is Eleven Flash v2.5 from ElevenLabs at $0.0700/1k chars · $0.0025 minimum/call. Compare what each tool returns before choosing.

| Tool | Provider | What it returns | Price |
| --- | --- | --- | --- |
| [Eleven Flash v2.5](https://scrollport.com/tools/providers/elevenlabs/eleven-flash-v2-5) | ElevenLabs | Generate speech audio from text with a selected voice and output format. | $0.0700/1k chars · $0.0025 minimum/call |
| [Eleven v3](https://scrollport.com/tools/providers/elevenlabs/eleven-v3) | ElevenLabs | Generate multi-speaker dialogue audio from scripted text with voice and delivery controls. | $0.1400/1k chars · $0.0025 minimum/call |

## 2 available tools

Turn text into speech

$0.0700/1k chars · $0.0025 minimum/call

### Eleven Flash v2.5

Generate speech audio from text with a selected voice and output format.

ElevenLabs

Turn text into speech

$0.1400/1k chars · $0.0025 minimum/call

### Eleven v3

Generate multi-speaker dialogue audio from scripted text with voice and delivery controls.

ElevenLabs

## Questions about Text to speech API

### How much do text to speech API tools cost?

Prices run from $0.0700/1k chars · $0.0025 minimum/call to $0.1400/1k chars · $0.0025 minimum/call. You pay per use from one prepaid wallet with no subscription. Your agent sees the exact price before each run, and connecting your first agent adds $1 of trial credit.

### What is the best text to speech API for an AI agent?

It depends on what you need back and how much you will run it. Eleven Flash v2.5 (ElevenLabs, $0.0700/1k chars · $0.0025 minimum/call): Generate speech audio from text with a selected voice and output format. Eleven v3 (ElevenLabs, $0.1400/1k chars · $0.0025 minimum/call): Generate multi-speaker dialogue audio from scripted text with voice and delivery controls. Your agent can inspect the closest match and see its exact price before it runs.

## Learn more about text-to-speech

Give your agent the final script, listener context and delivery direction. It can then choose a suitable voice and test the lines most likely to expose pronunciation or pacing problems.

**Direct the delivery, not just the voice**

Describe audience, language, tone, pace and speaking situation. Mark names, numbers, abbreviations and specialist terms that need exact pronunciation, and say which wording must not change.

**How can I improve text-to-speech pronunciation?**

Provide phonetic guidance or a spoken equivalent for difficult terms, then test those lines in a short sample. Natural punctuation and shorter sentences can also improve pauses and emphasis.

**Divide long narration into reviewable sections**

Approve a representative passage first, then generate long scripts in logical chunks with consistent voice direction. Check transitions, loudness and pronunciation before joining the final audio.

**Example prompt**

This example prioritises the lines most likely to need correction.

Example prompt to give your agent

`Use Scrollport's Text-to-speech tools to voice [SCRIPT OR ATTACHMENT] for [AUDIENCE AND USE]. Use [LANGUAGE], a [TONE] delivery at [PACE]. Keep the wording exact. Pronounce [TERM] as [GUIDANCE] and test the section containing [DIFFICULT NAMES OR NUMBERS] first. Show me the price before the paid run.`

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Canonical page: https://scrollport.com/tools/text-to-speech-api