Ping
Basic no-charge liveness check.
GET
https://alpha-swan.duckdns.org/v1/free/ping
Controlled Test Website
riskapi test surface
This site tests one boundary: free API calls should work without Stripe, while paid API calls should only work after a sandbox purchase has provisioned an API key.
The website is static. The live backend is controlled separately, and some routes stay IP-restricted during testing.
Free checks
These are the baseline checks. If they work from an approved operator IP and fail from elsewhere, the access boundary is behaving as intended.
Current UTC Time
Return current UTC time and a Unix epoch value.
GET
https://alpha-swan.duckdns.org/v1/free/time/utc
Slugify Text
Convert a phrase into a clean lowercase ASCII slug.
POST
https://alpha-swan.duckdns.org/v1/free/text/slugify
Word Count
Return word, character, and line counts for a text block.
POST
https://alpha-swan.duckdns.org/v1/free/text/word-count
Extract URLs
Pull HTTP and HTTPS links out of plain text.
POST
https://alpha-swan.duckdns.org/v1/free/text/extract-urls
Unix To UTC
Convert a Unix epoch into an RFC 3339 UTC timestamp.
POST
https://alpha-swan.duckdns.org/v1/free/time/unix-to-utc
UTC To Unix
Convert an RFC 3339 timestamp into a Unix epoch value.
POST
https://alpha-swan.duckdns.org/v1/free/time/utc-to-unix
SHA-256 Hash
Return the SHA-256 hex digest for a string.
POST
https://alpha-swan.duckdns.org/v1/free/hash/sha256
Paid checks
These exist only to validate key provisioning. They stay simple so billing behavior remains the thing under test.
Text Cleanup
Normalize whitespace and trim edges in a string.
POST
https://alpha-swan.duckdns.org/v1/tools/text/cleanup
Time Shift
Move a timestamp by a chosen number of minutes.
POST
https://alpha-swan.duckdns.org/v1/tools/time/shift
Quickstart
Start with the free routes. Use the paid routes only when you want to verify the Stripe sandbox purchase and key-provisioning path.
curl https://alpha-swan.duckdns.org/v1/free/ping
curl https://alpha-swan.duckdns.org/v1/free/time/utc
curl -X POST https://alpha-swan.duckdns.org/v1/free/text/slugify \
-H "Content-Type: application/json" \
-d '{"text":"Hello, utility API world"}'
curl -X POST https://alpha-swan.duckdns.org/v1/free/hash/sha256 \
-H "Content-Type: application/json" \
-d '{"text":"abc"}'
curl -X POST https://alpha-swan.duckdns.org/v1/tools/text/cleanup \
-H "Content-Type: application/json" \
-H "X-API-Key: rk_live_your_key_here" \
-d '{"text":" keep this tidy "}'
The full machine-readable contract is available in the OpenAPI reference linked above.
Test paid flow
Use this only for Stripe sandbox testing. It creates a Checkout Session for the test product and returns you here with a provisioned API key if payment succeeds.
This page uses Stripe sandbox only. No real payment should occur here.