Vault API MCP Server
The Vault API, provided by Apideck within their Unify ecosystem, is a specialized authentication and credential management service designed to abstract the complexity of securing access to third-party APIs.
Quick Start Summary
The Vault API MCP server is a Model Context Protocol bridge that connects AI assistants — including Claude Desktop, Cursor, Windsurf, and VS Code Copilot — to the Vault API API through natural language. It exposes 10 API endpoints as callable tools, such as Authorize, Callback, Get all connections, and more. No authentication is required — setup takes approximately 30 seconds. The server uses STDIO transport and can be installed by running npx -y @mcp/apideck-com-vault. This integration is sourced from the auto Vault API OpenAPI specification (v9.3.0) and has a quality score of 46/99 (fair documentation coverage).
Server Details
- Category
- Communication
- Authentication
- None
- Endpoints
- 10 operations
- Transport
- STDIO
- Spec Version
- v9.3.0
- Install Command
npx -y @mcp/apideck-com-vault
Environment Variables
VAULT_API_API_KEYExample: your_vault_api_api_key
Top Endpoints
/vault/authorize/{service_id}/{application_id}Authorize
/vault/callbackCallback
/vault/connectionsGet all connections
/vault/connections/{unified_api}/{service_id}Get connection
/vault/connections/{unified_api}/{service_id}Create connection
One-Click Install
Copy the snippet for your MCP client and paste it in — zero editing required.
Claude Desktop
Add to claude_desktop_config.json
{
"mcpServers": {
"apideck-com-vault": {
"command": "npx",
"args": [
"-y",
"@mcp/apideck-com-vault"
],
"env": {
"VAULT_API_API_KEY": "your_vault_api_api_key"
}
}
}
}Cursor
Settings → MCP Servers → Add
{
"mcpServers": {
"apideck-com-vault": {
"url": "https://mcpbridge.org/config/apideck-com-vault.json"
}
}
}Saves as .cursor/mcp.json in the download. Move it to your project root.
VS Code
Use with MCP extension
{
"mcpServers": {
"apideck-com-vault": {
"url": "https://mcpbridge.org/config/apideck-com-vault.json"
}
}
}Endpoints Explorer
Search and browse the 10 operations supported by this server.
Multi-Language Code Examples
Executable code snippets for calling Vault API endpoints in curl, TypeScript, or Python.
curl -X GET "https://api.apis.guru/v2/specs/apideck.com/vault/9.3.0/vault/authorize/{service_id}/{application_id}" \
-H "Content-Type: application/json" \
# No auth requiredManual Configuration
Directly add this block to your JSON config file, or use the hosted config registry URL.
{
"mcpServers": {
"apideck-com-vault": {
"command": "npx",
"args": ["-y","@mcp/apideck-com-vault"],
"env": {
"VAULT_API_API_KEY": "your_vault_api_api_key"
}
}
}
}Authentication Details
No authentication required. This MCP server runs out-of-the-box.
Documentation Links
Error Handling & HTTP Status Code Matrix
Common status codes, error causes, and resolution steps when invoking Vault API endpoints.
400 Bad RequestCause: Malformed payload parameters or missing required fields.
Resolution: Verify request schema in Endpoints tab before calling tool.
401 UnauthorizedCause: Missing or invalid API key credentials.
Resolution: Set environment variable in MCP client config under env object.
403 ForbiddenCause: Insufficient scope permissions for requested resource.
Resolution: Verify key permissions in developer dashboard.
404 Not FoundCause: Resource URL path or requested entity ID does not exist.
Resolution: Check path variables and parameters.
429 Rate Limit ExceededCause: API rate limit quota exceeded.
Resolution: Implement exponential backoff retry in tool call.
500 Internal ErrorCause: Upstream server runtime fault.
Resolution: Inspect STDIO stderr output for log trace.
Quality Score
Checked against our protocol-compliance rules.
Specification Version: v9.3.0
Page compiled on: June 13, 2026
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📖 Detailed MCP Integration Guide
A technical breakdown of capabilities, agent workflows, and security/configuration best practices.
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