The AI Speech Layer
Your Models Actually Understand
Signal Loom converts audio into structured, schema-bound intelligence — so your AI systems don't just hear, they comprehend.
From Raw Media to
Machine Intelligence
Three steps. Zero compromise on privacy. Built for AI consumption from the ground up.
Drop in Any Audio
Upload a file or pass a URL. We handle MP3, WAV, M4A, FLAC, OGG, and 30+ formats natively.
api.signalloomai.com/v1/transcribe
Structured Intelligence
MLX Whisper runs locally on Apple Silicon. No cloud. No per-minute billing. Your audio never leaves your infrastructure.
SRT · VTT · TXT — all in one pass
Structured Output, Any Destination
Schema-bound JSON ready for your vector DB, analytics pipeline, or AI agent context window.
pgvector + /v1/query when ready
Built for Real Production
Workloads
Everything you need to go from raw audio to structured AI-ready output at scale.
Privacy by Architecture
Audio never touches the cloud when using local Mac inference. Even our API processes data in memory — zero storage, zero training.
4x Apple Silicon Speed
Native MLX Whisper optimized for M-series chips. Real-world 4x faster than cloud equivalents on comparable accuracy tasks.
Multi-Format Output
One API call returns structured JSON, subtitles (SRT/VTT), and plain text simultaneously — no sequential processing.
Real-Time Streaming
Server-Sent Events (SSE) for live transcription. Get words as they're spoken, not after the file finishes processing.
Signal Loom Schema (SLS)
Our proprietary structured output format designed for machine consumption — not human reading. Schema-bound, provenance-tracked.
Cost Predictability
Predictable per-job pricing. No per-minute API bills that spike at 3am. Know your costs before you run.
Stop Guessing.
Know Your AI Cost Before You Run.
LoomLens pre-flight cost intelligence — estimate what any prompt costs across 24+ models before you spend a token.
Every prompt.
Right model. Right price.
LoomLens estimates cost across all major model clusters before you run — so you stop overpaying for tasks that don't need Opus-tier reasoning.
One Request. All the Structure.
Drop in a file — get JSON, SRT, VTT, and TXT in a single API call. Webhook delivery when you're ready to scale.
Transcription + Structure in One Pass
No need to chain multiple services. Signal Loom handles format conversion, word-level timestamps, and language detection in a single job — then delivers structured output exactly where you need it.
-H "Authorization: Bearer $SL_API_KEY" \
-F "file=@recording.mp3" \
-F "output_formats=json,srt,vtt" \
-F "word_timestamps=true"
# Response — structured JSON ready for AI consumption {
"job_id": "slj_01HX...",
"status": "completed",
"schema": "signal_loom_v1",
"words": [
{"word": "Signal", "start": 0.32, "end": 0.71},
...
],
"formats": {
"json": "https://cdn.signalloomai.com/...",
"srt": "https://cdn.signalloomai.com/..."
}
}
Simple, Predictable Costs
No per-minute billing surprises. No cloud infrastructure bills at month end. Pay for what you transcribe.
For evaluation and small projects. No credit card required.
Full API access. No rev-share. 40% discount vs pay-per-call.
For organizations with volume, compliance, or on-prem requirements.
Ready to Build?
Get your free API key in 30 seconds. No credit card. No per-minute surprises.