Chapar
Fast, private API testing for HTTP and gRPC—built natively in Go.
Quick facts
- Best for
- Fast, private API testing for HTTP and gRPC—built natively in Go.
- Pricing
- Freemium
- Editor rating
- 4.5 / 5
- Community saves
- 0
About 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.
Pros
- 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)
Cons
Pricing
Custom / Contact for pricing
$0
- • Single API to access multiple LLMs and speech models
- • Support for inference, dataset management, and workflows
- • Capabilities for RAG, agents, orchestration, and observability
- • Production-grade AI infrastructure and tooling
- • No public tiers, prices, free plan, or free trial disclosed; quote-based only