This listing is posted by the APIs.io catalog. APIs.io does not own or sell this API; we get access from the provider, SignalWire.
The SignalWire Addresses API offers client-side endpoints for listing and retrieving resource addresses using subscriber access tokens (SAT). It is intended for use with the Browser SDK, so a web app can resolve addresses directly from the client. Developers building browser-based calling, messaging or video experiences on SignalWire's communications platform would be the natural users. Requests go to a per-customer Space subdomain at {space_name}.signalwire.com.
What is published for it: OpenAPI, Documentation, API Reference, Authentication, Error Catalog and Webhooks artifacts.
About the provider: SignalWire is a programmable communications platform for voice, messaging, video, fax, SIP and AI voice agents, built by the team behind FreeSWITCH. In the APIs.io catalog it has a Kin Score of 74.2 (exemplar band) and an Agent Readiness score of 42.4 (agent-ready band, scored 2026-11-13). Access is freemium with self-serve signup.
Pricing: set by the provider.
Condition: a live hosted API, listed in the APIs.io catalog. You call the provider's own endpoint.
Catalog listing: https://apis.io/apis/signalwire/signalwire-addresses-api/ Provider: https://signalwire.com