Free tool

API endpoint normalizer

Raw paths like /v1/orders/123 and /v1/orders/456?expand=items are the same endpoint. Paste one method + path per line (or an OpenAPI paths JSON object, or YAML path lines) to see the endpoint key API Meter groups them under. It runs entirely in your browser: nothing is sent or stored.

Methods and paths
GET /v1/orders/123 GET /v1/orders/456?expand=items GET /v1/users/550e8400-e29b-41d4-a716-446655440000/invoices POST /v1/customers/cus_9f8a7b6c5d/charges GET /v1/files/d41d8cd98f00b204e9800998ecf8427e DELETE /v1/sessions/abc123def456/ /v1/users/{id}/keys:

Your API slug (for the curl example)

Method	Path	Endpoint key

The rules

Query string and #fragment are dropped; repeated and trailing slashes are collapsed; the path is lowercased.
All-digit segments become :id; UUIDs become :uuid; segments with @ become :email; segments over 64 characters become :token.
Alphanumeric segments of 16+ characters (hashes) become :id, as do 10+ character segments that mix letters and digits (like cus_9f8a7b6c5d).
At most 8 segments are kept (then /…), and the key is cut at 200 characters.

OpenAPI templates like {id} are not special-cased; they stay as written, which is fine because real traffic never contains braces.

Send a request through the proxy

Everything after /p/<slug> is forwarded to your origin, query string included. The normalized key is only what gets counted.

Tag the customer and plan at your origin

Set two response headers; the proxy reads and strips them. Full guide: Express, FastAPI and Hono.

// Express
res.set("X-MSA-Customer-Id", acct.customerId);
res.set("X-MSA-Plan", acct.plan);

# FastAPI middleware
response.headers["X-MSA-Customer-Id"] = acct.customer_id
response.headers["X-MSA-Plan"] = acct.plan

// Hono on a Cloudflare Worker
c.header("X-MSA-Customer-Id", acct.customerId);
c.header("X-MSA-Plan", acct.plan);

What the stats look like (example)

Example only. These numbers are made up from the paths above. Real numbers come from /api/stats for your slug, shown in the dashboard. Fields shown are a subset.

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