Postman Echo API
Test api server to receive and return value from HTTP method.
Strengths
- No API key needed
- HTTPS
vsPostman Echo API vs US Street Address API
Two free Data Validation APIs compared on access, reliability and developer ratings, using data from our daily health checks.
The verdict
- Choose Postman Echo API if you want to start without an API key.
- Choose US Street Address API if you want to call it from browser JavaScript, faster responses.
Side by side
| Postman Echo API | US Street Address API | |
|---|---|---|
| What it does | Test api server to receive and return value from HTTP method. | Validate and append data for any US postal address. |
| Provider | Postman | Smarty |
| API key | Not needed | Required |
| HTTPS | Yes | Yes |
| CORS (browser calls) | Unknown | Yes |
| Status today | Online · 2932 ms | Online · 559 ms |
| Uptime (30 days) | Up | Up |
| Developer rating | Not rated yet | Not rated yet |
| Price | Free / free tier | Free / free tier |
About each API
US Street Address API
Validate and append data for any US postal address.
Complete documentation of Smarty's US address validation API including URL composition, input and output fields, and status codes.
Strengths
- Callable from the browser (CORS)
- HTTPS
How to choose between them
- Prototyping or a tutorial? Pick the one that needs no API key.
- Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
- Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
- Still unsure? Both are free to try: send one request to each and compare the data you get back.
Postman Echo vs US Street Address FAQ
Which needs an API key, Postman Echo API or US Street Address API?
US Street Address API requires an API key; Postman Echo API doesn't, so Postman Echo API is quicker to try.
Which can I call from the browser?
US Street Address API supports CORS, so front-end JavaScript can call it directly. Call the other from a server.
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- US Extract vs US Street Address
Postman Echo API alternatives · US Street Address API alternatives · best Data Validation APIs