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Standard Edition

Free forever with limited features

Pro Edition

30-day free trial with advanced features

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Features
SE
Free forever
Pro
30-day free trial

Privacy

No cloud required
No account needed
No telemetry

Protocols & Core

HTTP client
HTTP/3 & QUIC
GraphQL
WebSocket
Server-Sent Events (SSE)
KafkaLimitedAdvanced
OAuth 2.0 flows
Environments & variables
Box
History
atra import / export

Testing & Scripting

Pre-Script / Post-Script
at.* Scripting APILimitedFull API
Built-in random variables
Contract Validation
Visual Assertions

Projects

ProjectsUp to 3Unlimited
Modules per projectUp to 3Unlimited

OpenAPI Designer

Visual Designer
Area Mode (unique to Atrahasis)
Bi-directional sync (spec ↔ visual)
Import / Export (YAML, JSON)
Live preview
Try It Out (inline API testing)
Webhooks & Callbacks
Schema Composition (allOf, oneOf, anyOf)
External $ref resolution
OpenAPI v2 ↔ v3 conversion
Atrahasis extensions

Flow Runner

Flow groupsUp to 2Unlimited
Flow per groupUp to 3Unlimited
Variable extraction between steps
Iteration runs
Delay between steps
Stop on failure
Retry configuration per step
Live execution dashboard
Parallel execution—
Before All / After All scripts—
Export & Reporting (HTML, PDF, OTel JSON)—
Git integration—

Load Testing

Spec groups—Unlimited
Spec per group—Unlimited
Test modes—Load, Stress, Spike, Soak, Custom
Before All / After All scripts—
Export & Reporting (HTML, PDF, OTel JSON)—
Grafana OTel Connector—
Live result board—
Compare results across runs—
Git integration—

Kafka

Kafka client (produce and consume)
SASL: PLAIN, SCRAM-SHA-256/512, OAUTHBEARER
TLS with private CA and verification levels
Mutual TLS (certificate and key, or PKCS#12)
Topic management (create, describe, edit, delete)
Producer: key, headers, partition, tombstones
Delivery settings (acks, compression, retries, idempotence)
Start position (latest, earliest, offset, time, last N)
Buffer budget with backend-side search
Export (JSON, JSON Lines, CSV)
Avro decoding with your own schemas—Up to 10
Schema Registry: decoding what you read—
Schema Registry: producing against a registered schema—
Pre-produce validation against the schema—
Registry credentials, private CA and mTLS—

Mock Server

Mock servers—Unlimited
Mock endpoints—Unlimited
Hot-reload (no restart on update)—
Multiple request & response definitions—
Conditional response matching—

Git Integration

Advanced git dashboard—
Commit graph—
History—
Commit—
Stash—
Branch compare—
Multi-repo support—

Secrets Management

HashiCorp Vault integration—
Environment secrets in OS keychain—

CLI & CI/CD

Export flows as .flow.json (atra-compatible)—
Export load tests as .spec.json (atra-compatible)—
Run flows headlessly via atra run—
Run load tests headlessly via atra run—
CI/CD pipeline integration—