How to Connect AssemblyAI with Substack (2026)

AssemblyAI

★★★★ 4.4

Ai Api Speech Api

Accurate speech-to-text API with built-in audio intelligence features like summarization, sentiment analysis, and topic detection.

Full Review

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Substack

★★★★ 4.3

Email Marketing Newsletter

Publishing platform enabling writers to create paid newsletter subscriptions with built-in payment processing.

Full Review

About These Tools

AssemblyAI: Accurate speech-to-text API with built-in audio intelligence features like summarization, sentiment analysis, and topic detection.

Substack: Publishing platform enabling writers to create paid newsletter subscriptions with built-in payment processing.

Key Features

AssemblyAI

Speech-to-text
Speaker diarization
Summarization
Sentiment analysis
Topic detection
PII redaction

Substack

Newsletter publishing
Paid subscriptions
Podcasts
Notes
Chat
Mobile app

Pricing

AssemblyAI

Pay-per-use $-$$$

Substack

Freemium 10% of revenue

Detailed integration guide coming soon. We're researching the specific ways AssemblyAI and Substack work together — including native integrations, third-party connectors, and API options. Check back for a complete step-by-step guide.

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