Every protocol your
systems speak.

REST REST / HTTP client

Every method, every body type, every header — with environments and auth built in.

• GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS
• JSON, XML, HTML, text, form-data, URL-encoded bodies
• Bearer, Basic, API key and OAuth 2.0 client credentials
• Pre-request scripts, tests, code generation and cURL export

GQL GraphQL client

Queries and mutations with a JSON variables editor and operation names.

• Query editor with separate JSON variables
• Optional operation name
• Custom headers and authentication
• Data and errors shown side by side

SOAP SOAP client

Hand-tuned XML envelopes with SOAPAction headers for legacy services.

• Full XML envelope editor
• SOAPAction header
• Custom headers and authentication
• XML response with syntax highlighting

WS WebSocket client

Open a socket, send messages and watch the live message log.

• Connect to ws:// and wss:// endpoints
• Subprotocols and custom headers
• Send messages, see every frame in a timeline
• {{variables}} in URLs and messages

SIO Socket.IO client

Namespaces, auth payloads and named events, without writing a client.

• Connect to a namespace
• JSON auth payload on connect
• Emit named events with JSON data
• Incoming events listed with their names

SSE Server-Sent Events client

Subscribe to an event stream and inspect every event, id and payload.

• Subscribe to any text/event-stream endpoint
• Custom headers and authentication
• Event name, id and data for each message
• Live event log while the stream is open

gRPC gRPC client

Call services from a .proto file or discover them with server reflection.

• Load a .proto file, or use server reflection
• Unary and streaming responses
• JSON request messages, encoded to protobuf for you
• TLS connections

Available in the VS Code extension today.

MQTT MQTT client

Talk to brokers and devices: subscribe with wildcards, publish with QoS.

• Subscribe to multiple topics with wildcards
• Publish to any topic
• QoS 0, 1 or 2; client ID and credentials
• mqtt://, mqtts://, ws:// and wss:// brokers

In the browser, brokers must be reachable over ws:// or wss://.

FTP FTP client

Browse, upload, download and delete files, with optional FTPS.

• List remote directories
• Upload and download files
• Delete remote files
• Explicit TLS (FTPS)

On the web, List and Delete only — through the Voyager relay, when signed in.

SFTP SFTP client

SSH file transfer with password or private-key authentication.

• Password or private key (PEM) auth
• List remote directories
• Upload, download and delete files
• Variables for hosts and paths

On the web, List and Delete only — through the Voyager relay, when signed in.

SMTP SMTP client

Send real test emails through any SMTP server and see who accepted them.

• From, to (multiple recipients) and subject
• Plain-text message body
• TLS/SSL and username/password auth
• Accepted and rejected recipients, message ID

On the web, sent through the Voyager relay when signed in.

TCP TCP client

Open a raw TCP connection, optionally over TLS, and exchange messages.

• Connect to any host and port
• Optional TLS
• Initial message sent on connect
• Send and receive in a live log

On the web, connections run through the Voyager relay when signed in.

UDP UDP client

Fire datagrams at a host and see replies with their source address.

• Send datagrams to any host and port
• Initial datagram once bound
• Replies show remote address and port
• Variables for hosts

On the web, datagrams run through the Voyager relay when signed in.

PSQL PostgreSQL client

Run SQL with positional parameters and read results as a table.

• SQL editor with positional $1, $2 parameters
• Parameters resolve {{variables}}
• SSL connections
• Result rows, fields and command tag

Available in the VS Code extension today.