Dynamic Tags Per Request

Leverage dynamic tags for reporting, billing, or feature tracking with custom tags sent per request.

The request_tags parameter lets you add custom tags to each request, enabling dynamic tracking at the individual request level. It supports both flat and hierarchical formats, making it easy to organize usage data for reporting, cost allocation, team billing, feature usage, or environment segmentation. These tags are available in the dashboard as a filter and also in the meta data of the activity logs.

Parameter Type:

request_tags: [string]

What You Can Do with Tags:

• Group and filter requests by project, team, environment, or feature

• Organize usage reports using nested tag paths (e.g., team/feature/test)

• Track granular usage without needing to manage multiple API keys

Tag Formats Supported

Format Type	Example Tags	Description
Flat Tag	["asia", "production"]	Simple, one-level tags
Hierarchical	["USA/NYC", "org/team/project"]	Path-style, nested classification
Mixed	[ "Asia", "UAE/Dubai" ]	Combine both types in the same request

Example Request

curl --location 'https://api.fastrouter.ai/api/v1/chat/completions' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer API-KEY' \
--data '{
    "model": "openai/gpt-4o-mini",
    "stream": false,
    "messages": [
        {
            "role": "user",
            "content": "What are some famous tourist attractions in London?"
        }
    ],
    "temperature": 0.0,
    "request_tags": ["UK/London", "Europe"]
}'

Why Use Tags?

• Team-level visibility: e.g., marketing/email-gen

• Feature usage breakdown: e.g., feature/summary-widget

• Cost attribution: e.g., customer/acme, env/staging

• Geo-based tracking: e.g., US/California/SF , India/Mumbai