API Playground
Test verified public APIs in your browser via a security-hardened proxy — only 2,606 allowlisted APIs can be reached. Built for single-endpoint APIs and large surfaces like Plaid or Slack.
Endpoints
2
Street-address
Request
proxy validates path
www.smarty.com· SSRF-safe proxyApplied to this request only — never stored, never sent anywhere but the API you're calling.
query · required — Authentication ID (required)
query · required — Authentication token (required)
query — The street line of the address, or the entire address (freeform).
query — The city name.
query — The state name or abbreviation.
query — The ZIP Code.
query — Maximum number of addresses returned when the input is ambiguous (default 1, max 10).
query — Match output strategy: strict, invalid, or enhanced.
query — Output format: default or project-usa.
query — Comma‑separated list of extra features (e.g., component-analysis, iana-timezone).
query — Pass‑through identifier for the input address (up to 36 characters).
query — Any extra address information.
query — Apartment, suite, or office number.
query — Name of the person or company as submitted by the client.
query — Neighborhood (only Puerto Rican addresses).
query — City, state, and ZIP Code combined.
query — Source for county information: postal (default) or geographic.
Response
Send a request to see the real response here — status, timing, and body.
The playground routes through a security-hardened proxy. Only allowlisted hosts are reachable. Try US Street Address to start.