
CastingWords
Your customers upload audio or share a recording URL, and your AI agent sends it to CastingWords' human transcription team. Transcripts come back in plain text, HTML, or Word format with optional timestamps and captions. No manual uploads, no waiting for someone to check the queue.




Your AI agent manages the entire transcription lifecycle through CastingWords, from placing orders and selecting service tiers to checking balances and delivering finished transcripts.
CastingWords
Real scenarios where AI agents eliminate the manual steps between recording and readable text, letting teams focus on the content instead of the logistics.
A podcast team drops their latest episode URL into the chat. Your AI Agent submits it to CastingWords with the express SKU for next-day delivery and adds the timestamps add-on. When the transcript arrives, the webhook triggers a notification. The production team gets a timestamped Word doc without touching the CastingWords dashboard.
A university researcher has 40 interview recordings. They share the URLs with your AI Agent, which batch-submits them to CastingWords using the budget tier to keep costs manageable. The agent tracks each order's status and notifies the researcher as transcripts complete over the following weeks. Months of manual transcription work reduced to a single conversation.
A compliance officer needs SRT caption files for recorded depositions. Your AI Agent orders the transcription with the caption add-on, selects verbatim mode for legal accuracy, and delivers the caption files when CastingWords completes the job. The legal team meets accessibility requirements without coordinating with a separate transcription vendor.

CastingWords
FAQs
CastingWords transcribes from nearly any DRM-free audio or video format, including MP3, WAV, MP4, and streaming URLs from popular platforms. Your AI agent sends the file URL directly to the CastingWords API. The service handles format conversion internally, so you do not need to pre-process files.
You configure default preferences or let the agent ask the customer. Budget transcription uses the TRANS14 SKU for lower-priority work. Standard (TRANS6) delivers within a week. Express (TRANS2) targets next-day turnaround. The agent presents these options conversationally and submits the order with the selected SKU.
Yes. CastingWords supports post-completion upgrades. Your AI agent calls the upgrade endpoint with add-on SKUs like TSTMP1 for timestamps or CAPTION1 for SRT captions. The upgrade applies to the existing audio file without re-ordering the base transcription.
CastingWords uses human transcribers and editors, delivering 99% accuracy on clear audio. Unlike machine-only transcription, humans handle accents, overlapping speakers, and domain-specific terminology more reliably. For difficult audio, you can add the DIFFQ2 surcharge for extra editorial attention.
No. Your AI agent sends audio URLs directly to CastingWords and retrieves completed transcripts from their servers. Tars does not cache audio files or transcript text. All content resides on CastingWords' infrastructure and your own systems via webhook delivery.
CastingWords flags files with processing errors or difficult audio. Your AI agent receives these status updates via webhooks and can notify your team, cancel the order for a refund if it is still in pre-processing, or recommend the difficult audio add-on for challenging recordings.
Yes, provided transcription work has not started. If the order is still in pre-processing or audio processing status, the agent calls the cancel endpoint and a refund is issued. Once human transcription begins, cancellation is no longer available. The agent checks order status before attempting cancellation.
Your AI agent registers a webhook URL with CastingWords. When a transcript finishes, CastingWords sends an HTTP POST to that URL with the event details. You can also configure notifications for refunds and difficult audio flags. The agent can test the webhook to verify connectivity before going live.
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Privacy & Security
At Tars, we take privacy and security very seriously. We are compliant with GDPR, ISO, SOC 2, and HIPAA.