Atrahasis Features

Full HTTP client with every method and body type.

• GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS
• JSON, XML, form-data, URL-encoded, binary
• Query params, path variables, custom headers

Latest protocols with automatic negotiation.

• HTTP/1.1, HTTP/2, HTTP/3 (QUIC)
• Automatic protocol selection
• Connection pooling and reuse

Full GraphQL client with schema explorer.

• Query, mutation, and subscription support
• Schema introspection with visual builder
• Variables, headers, and auth per request

Real-time bidirectional connections.

• Text, binary, ping, pong, close frames
• Subprotocols and custom handshake headers
• Handshake detail and full message history

Real-time one-way event streaming.

• Live event viewer with filtering
• Automatic reconnection
• Last-Event-ID resume support

Produce to and consume from a cluster, without a CLI.

• SASL, TLS and mutual TLS, including OAUTHBEARER
• Read from latest, an offset, a time, or the last N
• Create, describe, edit and delete topics

Read and write Avro against your registry's schemas.

• Decodes framed messages by the id they carry
• Validates a produce before it is sent, field by field
• Bring your own schemas when there is no registry

Smart URL suggestions from your history.

• Case-insensitive substring matching
• Method badge and status code display
• Keyboard and click navigation

Five tabs for every response detail.

• Body, Headers, Cookies, Detail, and Contract tabs
• Auto-format JSON and XML with syntax highlighting
• Streaming preview for large bodies

Per-phase timing for every request.

• DNS, TCP, TLS, request, TTFB, download
• Headers and body size split for both directions
• TLS certificate detail on every HTTPS response