API and service simulator

Traffic Parrot simulates APIs, services, and systems for your teams and their AI agents.
Speed up your software development lifecycle. Increase software quality.

Give your AI coding agents a backend to test against

Real backend

Traffic Parrot simulator

Real backend vs Traffic Parrot simulator

  • If the agent cannot reach the backend, it improvises. It hard-codes a response or rewrites the test so it passes, then reports the code as working even though nothing was really tested.
  • Every call gets the response you defined: green means the code was tested, red means it is broken.
  • Sandboxes were sized for people. An agent burns the quota, then waits.
  • Simulated third-party APIs, local to the agent: no quota, no waiting, no partner keys.
  • A dozen agents share one environment. Nobody provisions a queue manager per agent.
  • One simulator per agent, IBM MQ, JMS and gRPC as well as HTTP.
  • Someone still has to write the mocks.
  • Claude Code, GitHub Copilot CLI, Cursor or Antigravity writes them over MCP or as JSON files, validated against the schema.

Accelerate digital transformation

  • Simulate dependent systems to decouple development, manual and automated testing team schedules. Parallelise teamwork.
  • Simulate dependent systems to work around issues and unblock development, manual and automated testing
  • Simulate dependent systems to automate manual processes and unblock test automation, and find issues before production, shift-left testing
  • Simulate hypothetical scenarios to increase manual and automated test coverage
  • Simulate environments to cut down costs
Line illustration of two colleagues reviewing a large dashboard of charts and graphs, representing accelerating digital transformation
Line illustration of a developer on a large laptop with a robotic arm and a magnifying glass highlighting a bug in the code, representing automated testing

Create automated tests faster

  • Simulate not yet available APIs or services and unblock your teams
  • Automate backend and third-party manual processes with simulators during development and testing
  • One-click refresh and setup of test data
  • Simulate hypothetical and error scenarios
  • Simulate third-party API and service test environments
  • Simulate the hard-to-replicate scenarios
  • Stabilise third-party and backend APIs by simulating them

Decrease costs of moving to cloud

  • Simulate legacy systems and environments in the cloud instead of migrating them to development and testing environments to the cloud. This results in faster and less costly migration of development and test environments.
  • Cut tool license and maintenance costs, and allow for faster development and testing cycles by using a tool designed to be run as a microservice in ephemeral containers by self-service teams in the cloud.
  • Simulate the systems managed by slow-moving teams and unblock your teams working on the cloud migration
  • Eliminate the complexity by creating simulators and save your test and development teams’ time.
Line illustration of a person reaching toward a cloud filled with gears, representing moving systems to the cloud to reduce costs

What is a Traffic Parrot simulator?

Developers and testers use Traffic Parrot to create simulators of APIs, services and systems. Developers and testers use those simulators during the development and testing phases to solve the issues listed below.

Problems developers and testers see

  • APIs or services not yet available
  • Manual process in backend or third-party systems prevents automation
  • Test data setup or refresh required
  • Low test coverage because of difficulty setting up hypothetical and error scenarios
  • Third-party API and service test environment restrictions
  • Hard to investigate test failures due to hard-to-replicate in test environments scenarios
  • Intermittent failures with third-party test APIs

How simulators solve them during development and testing

  • Simulate not yet available APIs or services and unblock your teams
  • Automate backend and third-party manual processes with simulators during development and testing
  • One-click refresh of simulators
  • Simulate hypothetical and error scenarios
  • Simulate third-party API and service test environments
  • Simulate the hard-to-replicate scenarios
  • Stabilise third-party and backend APIs by simulating them

Easily integrated into your DevOps ecosystem

No workarounds needed. Designed for infrastructure-as-code, ephemeral containers and microservice architectures.

Get started in 3 minutes

Evaluate Traffic Parrot. Have a look
at the 3-minute Quick Start guide.

For automation see features.

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