Your one-stop shop for sending and monitoring
RESTful, Streaming, and GraphQL API requests

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Swell is a API development tool that enables developers to test endpoints served over streaming technologies including Server-Sent Events (SSE), WebSockets, HTTP2, and GraphQL.

WebSockets (WS)


Connect directly to WebSocket servers with upgraded HTTP/HTTPS protocols and send messages to test real-time responsiveness

Server-Sent Events (SSE)


Connect to SSEs and watch streaming events come in one by one

GraphQL


Test all three GraphQL root types (query, mutation, subscription) with and without variables

HTTP/2


Swell supports full HTTP2 multiplexing of requests and responses. HTTP requests to the same host will be sent over the same connection. Swell will attempt HTTP2 for all HTTPS requests by default, but will revert to HTTP1.1 for legacy servers

RESTful APIs


Just as Swell can test streaming and non-RESTful APIs, Swell can also test your RESTful APIs

Collections


Keep track of your endpoints with collections, and easily minimize/expand groups of requests


Meet the team


Kyle Combs

@texpatnyc

Jason Ou

@jasonou1994

Anthony Terruso

@discrete-projects

Brandon Marrero

@barndon6190

Kwadwo Asamoah

@addoasa

Abby Chao

@abbychao

Amanda Flink

@aflinky

Kajol Thapa

@kajolthapa