API Reference

The SpeakWrite API is organized around REST. Our API has predictable resource-oriented URLs, accepts form-encoded request bodies, returns JSON-encoded responses, and uses standard HTTP response codes, authentication, and verbs.

You can use the SpeakWrite API in test mode, which does not affect your live data or interact with the banking networks. The API key you use to authenticate the request determines whether the request is live mode or test mode.

The SpeakWrite API differs for every account as we release new versions and tailor functionality. Log in to see docs customized to your version of the API, with your test key and data.

Subscribe to SpeakWrite’s API announce mailing list for updates.

Base URL


The Stripe API uses API keys to authenticate requests. You can view and manage your API keys in the Stripe Dashboard.

Test mode secret keys have the prefix sk_test_ and live mode secret keys have the prefix sk_live_. Alternatively, you can use restricted API keys for granular permissions.

Your API keys carry many privileges, so be sure to keep them secure! Do not share your secret API keys in publicly accessible areas such as GitHub, client-side code, and so forth.

Authentication to the API is performed via HTTP Basic Auth. Provide your API key as the basic auth username value. You do not need to provide a password.

If you need to authenticate via bearer auth (e.g., for a cross-origin request), use -H “Authorization: Bearer sk_test_4eC39HqLyjWDarjtT1zdp7dc” instead of -u sk_test_4eC39HqLyjWDarjtT1zdp7dc.

All API requests must be made over HTTPS. Calls made over plain HTTP will fail. API requests without authentication will also fail.

Authenticated request
curl https://api.speakwrite.com/v1/charges \
-u sk_test_4eC39HqLyjWDarjtT1zdp7dc:
# The colon prevents curl from asking for a password.
Your API Key

A sample test API key is included in all the examples here, so you can test any example right away.

To test requests using your account, replace the sample API key with your actual API key or sign in.


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