Bring Audio Transcription
to Mastra AI
Create your Vinkius account to connect Castmagic to Mastra AI and start using all 8 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Castmagic MCP Server?
Connect your Castmagic account to any AI agent and take full control of your content repurposing workflow through natural conversation. Transform long-form audio and video into ready-to-use assets instantly.
What you can do
- Instant Transcription — Submit audio/video URLs and retrieve high-accuracy transcripts with speaker identification natively
- Magic Content Generation — Generate AI-driven show notes, summaries, social media posts, and titles flawlessly
- Speaker Analysis — List and manage identified speakers within your recordings to refine transcript metadata securely
- Asset Management — List all uploaded recordings and transcripts to organize your content library in real-time
- Quota Oversight — Retrieve account and subscription information to monitor your usage and limits directly
- Automated Workflows — Submit new content for processing and delete old transcripts directly within your workspace
How it works
- Subscribe to this server
- Enter your Castmagic Secret Key (obtained from your Developer Dashboard)
- Start repurposing your content from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Podcasters — generate show notes and social clips from latest episodes using natural language
- Content Marketers — transform webinars and videos into blog posts and social updates without manual work
- Creators — audit and manage their entire audio content library straight from their chat interface
- Agencies — automate transcript delivery and content drafting for multiple client projects
Built-in capabilities (8)
Submit a new audio or video URL for transcription
Delete a transcript and its associated data
Retrieve core account and quota information
Retrieve AI-generated content (show notes, social posts) for a transcript
Get details and text for a specific transcript
List all uploaded recordings
List identified speakers in a transcript
List all audio/video transcripts
Why Mastra AI?
Mastra's agent abstraction provides a clean separation between LLM logic and Castmagic tool infrastructure. Connect 8 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.
- —
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add Castmagic without touching business code
- —
Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation
- —
TypeScript-native: full type inference for every Castmagic tool response with IDE autocomplete and compile-time checks
- —
One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure
Castmagic in Mastra AI
Why run Castmagic with Vinkius?
The Castmagic connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 8 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.
* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.
Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Castmagic using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Castmagic and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Castmagic to Mastra AI through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Castmagic for Mastra AI
Every request between Mastra AI and Castmagic is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
Can I generate social media posts from a podcast link?
Yes! Use the create_new_transcript tool with your podcast audio URL, then use get_magic_content once processing is finished to retrieve AI-generated social posts.
How do I check if my transcription is ready?
Use the list_transcripts tool. Your agent will return a list of all jobs and their current status (e.g., Processing, Finished).
Which languages does Castmagic support?
Castmagic supports over 18 languages including English, Spanish, French, German, and Portuguese. You can specify the language when creating a new transcript.
How does Mastra AI connect to MCP servers?
Create an MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.
Can Mastra agents use tools from multiple servers?
Yes. Pass multiple MCP clients to the agent constructor. Mastra merges all tool schemas and the agent can call any tool from any server.
Does Mastra support workflow orchestration?
Yes. Mastra has a built-in workflow engine that lets you chain MCP tool calls with branching logic, error handling, and parallel execution.
createMCPClient not exported
Install: npm install @mastra/mcp
Explore More MCP Servers
View all →
Blueshift
10 toolsOrchestrate customer engagement via Blueshift — manage campaigns, track events, and sync customer data directly from any AI agent.
ZenQuotes API
4 toolsAccess inspirational quotes — audit random and daily quotes via AI.
MemeLord
12 toolsGenerate viral memes and humorous visual content with AI that understands internet culture and creates shareable images instantly.
Wistia
10 toolsManage video assets, projects, and engagement analytics on Wistia — the leading video marketing platform for business.