CaptionHub MCP Server for Mastra AI 10 tools — connect in under 2 minutes
Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect CaptionHub through Vinkius and Mastra agents discover all tools automatically. type-safe, streaming-ready, and deployable anywhere Node.js runs.
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Vinkius supports streamable HTTP and SSE.
import { Agent } from "@mastra/core/agent";
import { createMCPClient } from "@mastra/mcp";
import { openai } from "@ai-sdk/openai";
async function main() {
// Your Vinkius token. get it at cloud.vinkius.com
const mcpClient = await createMCPClient({
servers: {
"captionhub": {
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
},
});
const tools = await mcpClient.getTools();
const agent = new Agent({
name: "CaptionHub Agent",
instructions:
"You help users interact with CaptionHub " +
"using 10 tools.",
model: openai("gpt-4o"),
tools,
});
const result = await agent.generate(
"What can I do with CaptionHub?"
);
console.log(result.text);
}
main();
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About CaptionHub MCP Server
Connect your CaptionHub account to any AI agent and orchestrate your video localization, AI-powered transcription, and subtitle approval workflows through natural conversation.
Mastra's agent abstraction provides a clean separation between LLM logic and CaptionHub tool infrastructure. Connect 10 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.
What you can do
- Project Oversight — List all localization projects and retrieve detailed metadata, including source and target languages.
- Automated Transcription — Trigger AI-powered auto-transcription for your video assets directly from your workspace.
- Caption Lifecycle — Handover, approve, or archive caption sets for specific languages using natural language.
- Export Coordination — Retrieve export links for finished captions in various formats straight from your workspace.
- Workflow Automation — Monitor active webhooks and project statuses to ensure your localization pipeline is efficient.
- Data Deep Dives — Get detailed data for specific project, caption, or user IDs using natural language.
The CaptionHub MCP Server exposes 10 tools through the Vinkius. Connect it to Mastra AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect CaptionHub to Mastra AI via MCP
Follow these steps to integrate the CaptionHub MCP Server with Mastra AI.
Install dependencies
Run npm install @mastra/core @mastra/mcp @ai-sdk/openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save to agent.ts and run with npx tsx agent.ts
Explore tools
Mastra discovers 10 tools from CaptionHub via MCP
Why Use Mastra AI with the CaptionHub MCP Server
Mastra AI provides unique advantages when paired with CaptionHub through the Model Context Protocol.
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add CaptionHub 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 CaptionHub 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
CaptionHub + Mastra AI Use Cases
Practical scenarios where Mastra AI combined with the CaptionHub MCP Server delivers measurable value.
Automated workflows: build multi-step agents that query CaptionHub, process results, and trigger downstream actions in a typed pipeline
SaaS integrations: embed CaptionHub as a first-class tool in your product's AI features with Mastra's clean agent API
Background jobs: schedule Mastra agents to query CaptionHub on a cron and store results in your database automatically
Multi-agent systems: create specialist agents that collaborate using CaptionHub tools alongside other MCP servers
CaptionHub MCP Tools for Mastra AI (10)
These 10 tools become available when you connect CaptionHub to Mastra AI via MCP:
approve_captions
Approve a caption set for a specific language
archive_project
Archive a project permanently
create_project
Create a new captioning project
export_captions
Get the export URL for a caption set
get_account_info
Retrieve core account information
get_project_details
Get details of a specific project
list_projects
List all video captioning projects
list_webhooks
List all active webhooks
transcribe_video
Trigger AI auto-transcription for a project
update_project
Update project metadata
Example Prompts for CaptionHub in Mastra AI
Ready-to-use prompts you can give your Mastra AI agent to start working with CaptionHub immediately.
"List all my current video projects in CaptionHub."
"Start auto-transcription for the 'Product Keynote' project."
"Get the French subtitle export link for project proj_123."
Troubleshooting CaptionHub MCP Server with Mastra AI
Common issues when connecting CaptionHub to Mastra AI through the Vinkius, and how to resolve them.
createMCPClient not exported
npm install @mastra/mcpCaptionHub + Mastra AI FAQ
Common questions about integrating CaptionHub MCP Server with Mastra AI.
How does Mastra AI connect to MCP servers?
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?
Does Mastra support workflow orchestration?
Connect CaptionHub with your favorite client
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Google's framework for building production AI agents.
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TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect CaptionHub to Mastra AI
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.