LMNT ACTION
Generate Speech from Text
Generates an audio file from the provided text. See the documentation
- Action
- Writes data
- API key
- SDK
- MCP
IMPLEMENTATION
Call this tool
Connect a user's LMNT account once, then configure and run Generate Speech from Text from your backend or agent.
import { PipedreamClient } from "@pipedream/sdk"
const pd = new PipedreamClient({
projectId: process.env.PIPEDREAM_PROJECT_ID!,
clientId: process.env.PIPEDREAM_CLIENT_ID!,
clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
projectEnvironment: "production",
})
const result = await pd.actions.run({
id: "lmnt-generate-speech-from-text",
externalUserId: "{external_user_id}", // any stable ID for this user in your system
configuredProps: {
lmnt: { authProvisionId: "apn_xxxxxxx" },
voice: "Voice",
text: "Text",
},
})
console.log(result)curl -X POST https://api.pipedream.com/v1/connect/{project_id}/actions/run \
-H "Content-Type: application/json" \
-H "X-PD-Environment: production" \
-H "Authorization: Bearer {access_token}" \
-d '{
"external_user_id": "{external_user_id}",
"id": "lmnt-generate-speech-from-text",
"configured_props": {
"lmnt": { "authProvisionId": "apn_xxxxxxx" },
"voice": "Voice",
"text": "Text"
}
}'// accessToken: mint a short-lived token with the Connect SDK — see the MCP guide
const transport = new StreamableHTTPClientTransport(
new URL("https://remote.mcp.pipedream.net/v3"),
{
requestInit: {
headers: {
Authorization: `Bearer ${accessToken}`,
"x-pd-project-id": "{project_id}",
"x-pd-environment": "production",
"x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
"x-pd-app-slug": "lmnt",
},
},
},
)
const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)
const { tools } = await mcp.listTools()
// listTools() hands your model this tool's input schema, so it can
// fill the arguments itself:
const result = await mcp.callTool({
name: "lmnt-generate-speech-from-text",
arguments: {
voice: "Voice",
text: "Text",
},
})SCHEMA
Inputs
Pipedream supplies the connected account. Your application provides the operation-specific values below. Dynamic inputs are resolved against that user's account.
| Property | Type | Description |
|---|---|---|
voice Voice | string | The voice ID of the voice to use for synthesis. Required Dynamic |
text Text | string | The text to synthesize. Required |
format Audio Format | string | The format of the audio file. Optional |
length Length | integer | Produce speech of this length in seconds; maximum 300.0 (5 minutes). Optional |
returnDurations Return Durations | boolean | If true, response will contain a durations field. Optional |
seed Seed | integer | Seed used to specify a different take; defaults to random. Optional |
speed Speed | string | The talking speed of the generated speech. A floating point value between 0.25 (slow) and 2.0 (fast); defaults to 1.0. Optional |
outputFilename Output Filename | string | The result will be written to this filename in the /tmp folder. If not specified, defaults to output.mp3 or output.wav depending on the selected format. Optional |
syncDir SyncDir | dir | Required |
REFERENCE
Tool details
Behavior hints are published with the component in the Pipedream registry and surface as MCP tool annotations, so an agent can reason about a tool before it calls it.
- Registry key
- lmnt-generate-speech-from-text
- Version
- 0.0.3
- App
- LMNT
- Authentication
- API key
- Read-only
- No
- Destructive
- No
- Open world
- Yes
- Source
- View on GitHub ↗