Chapar

Claim Tool

Last updated: December 13, 2025

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What is Chapar?

Chapar is an open-source, native API testing tool built with Go that delivers fast, private, local-only testing for HTTP and gRPC. With Python scripting for pre- and post-request automation, secure tunnel support for non-public services, and config-as-code for effortless sharing and version control, Chapar streamlines developer workflows. Its developer-friendly UI, zero telemetry, and secrets encryption make it a secure and efficient choice for modern teams. Released under the BSD-3-Clause license, Chapar welcomes contributions from a growing community.

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DeveloperApplication

Chapar's Top Features

Fast performance (Go-based)

Privacy-focused (local-only data)

Secrets encryption

Zero telemetry

HTTP support

gRPC support

Python scripting with SDK

Pre- and post-request scripts

Secure tunnel to development environments

Config as code (file-based)

Developer-friendly UI

Open source (BSD-3-Clause license)

Frequently asked questions about Chapar

Chapar's pricing

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    Use Cases

    Backend engineers

    Quickly test and iterate on HTTP endpoints with scripted pre/post request logic.

    Microservices teams

    Validate and debug gRPC methods across services and environments.

    Security-conscious organizations

    Keep testing data local with zero telemetry and encrypted secrets.

    DevOps and platform teams

    Store and review test configurations as code, versioned in Git.

    QA engineers

    Automate regression checks using Python SDK scripts.

    Remote developers

    Use secure tunnels to test services not exposed to the public internet.

    CI/CD maintainers

    Run consistent API checks tied to config-as-code within pipelines.

    API designers

    Prototype and verify new endpoints quickly in a clean, intuitive UI.

    Regulated/air‑gapped teams

    Operate entirely locally without telemetry for compliance-sensitive work.

    gRPC-first startups

    Test internal RPCs and private dev services through secure tunneling.

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