API Reference | URL Shortener

The Admin API runs on port 9090 (localhost only by default). The redirect endpoint runs on port 8081 (public).

Admin API — URL Mappings

Create Short URL

POST /api/shorten

Request body:

{
  "originalUrl": "https://example.com/very/long/path",
  "alias": "my-link",
  "expiresAt": "2025-12-31T23:59:59Z"
}

Field	Required	Description
`originalUrl`	✅	The target URL
`alias`	❌	Custom short code (3–32 chars, `[A-Za-z0-9_-]`)
`expiresAt`	❌	ISO 8601 expiry timestamp

Response 201 Created:

{
  "shortCode": "my-link",
  "originalUrl": "https://example.com/very/long/path",
  "active": true,
  "createdAt": "2025-01-01T10:00:00Z",
  "expiresAt": "2025-12-31T23:59:59Z"
}

List Mappings

Endpoint	Description
`GET /api/list`	Paginated list (default 50)
`GET /api/list/all`	All mappings
`GET /api/list/active`	Active only
`GET /api/list/inactive`	Inactive only
`GET /api/list/expired`	Expired only
`GET /api/list/count`	Count statistics

Response 200 OK:

[
  {
    "shortCode": "my-link",
    "originalUrl": "https://example.com/very/long/path",
    "active": true,
    "createdAt": "2025-01-01T10:00:00Z"
  }
]

Edit Mapping

POST /api/edit

{
  "shortCode": "my-link",
  "originalUrl": "https://new-target.com",
  "active": true
}

Delete Mapping

POST /api/delete

{ "shortCode": "my-link" }

Toggle Active

POST /api/toggleActive

{ "shortCode": "my-link" }

Admin API — Import / Export

Export

GET /api/list/export

Downloads a ZIP archive containing all mappings as JSON.

Validate Import

POST /api/list/import/validate
Content-Type: multipart/form-data

Returns validation results before applying. Detects conflicts and invalid entries.

Apply Import

POST /api/list/import/apply

Applies a previously validated import staging.

Check Staging

Endpoint	Description
`GET /api/list/import/staging/conflicts`	Conflicting entries
`GET /api/list/import/staging/invalid`	Invalid entries

Admin API — Statistics

Endpoint	Description
`GET /api/statistics/count`	Total redirect count
`GET /api/statistics/hourly`	Hourly breakdown
`GET /api/statistics/daily`	Daily breakdown
`GET /api/statistics/timeline`	Timeline data
`GET /api/statistics/config`	Statistics configuration
`GET /api/statistics/debug`	Raw event data (debug)

Hourly response example:

{
  "shortCode": "my-link",
  "buckets": [
    { "hour": "2025-01-01T10:00:00Z", "count": 42 },
    { "hour": "2025-01-01T11:00:00Z", "count": 17 }
  ]
}

Admin API — API Keys

Endpoint	Description
`GET /api/admin/apikeys`	List API keys for the current user
`POST /api/admin/apikeys`	Create a new API key (plaintext returned once)
`DELETE /api/admin/apikeys/{id}`	Revoke an API key

Keys are persisted via EclipseStore and survive server restarts. Only the SHA-256 hash is stored — the plaintext is returned once at creation time.

MCP Server

The MCP server runs as a separate process on port 9091 (loopback by default). It exposes the shortener as Model Context Protocol tools over JSON-RPC 2.0.

POST /mcp
X-API-Key: <key>
Content-Type: application/json

Every request must carry a valid X-API-Key header, which is forwarded to the Admin API — jSentinel remains the single authorization point.

Link tools

Tool	Description
`create_short_link`	Create with optional alias, `expiresAt`, `active`
`resolve_shortcode`	Look up the original URL for a short code
`edit_link`	Update target URL or active state
`toggle_active`	Toggle the active flag
`delete_link`	Remove a mapping
`list_links`	List with `all \| active \| expired \| inactive` filter, `query`, `limit`
`bulk_create_links`	Create multiple links in one call
`bulk_validate`	Validate a batch without applying
`export_links`	Export all mappings as Base64-encoded ZIP
`import_links_validate`	Validate a Base64 ZIP import
`import_links_apply`	Apply a previously validated import

Statistics tools

Tool	Description
`get_statistics`	Total redirect count (all / single date / date range)
`get_statistics_hourly`	Hourly breakdown per short code
`get_statistics_daily`	Daily breakdown per short code
`get_statistics_timeline`	Timeline data
`get_statistics_config`	Read statistics configuration
`set_statistics_enabled`	Enable or disable statistics collection
`update_statistics_config`	Update statistics configuration
`export_statistics`	Export statistics as Base64-encoded ZIP
`import_statistics`	Import statistics from Base64-encoded ZIP (idempotent)

Admin API — Preferences

Endpoint	Description
`GET /api/admin/preferences/columns`	Get column visibility settings
`POST /api/admin/preferences/columns/edit`	Bulk update preferences
`POST /api/admin/preferences/columns/single`	Update single preference

Admin API — Store Info

GET /api/store/info

Returns metadata about the active storage backend (type, record count, last modified).

Redirect Endpoint

GET /{shortCode}

Ports: 8081 — public-facing, no authentication.

Status	Condition
`302 Found`	Active, non-expired mapping found
`404 Not Found`	Unknown short code
`410 Gone`	Mapping exists but is inactive or expired

Records a RedirectEvent (timestamp, User-Agent, Referer, IP hash, Accept-Language) on every successful redirect.

Error Responses

All error responses use a consistent JSON envelope:

{
  "error": "ALIAS_ALREADY_EXISTS",
  "message": "The alias 'my-link' is already in use.",
  "status": 409
}

Code	Meaning
`400`	Invalid request body or URL
`404`	Short code not found
`409`	Alias already exists
`422`	Alias policy violation
`500`	Internal server error