Hoppscotchhoppscotch/hoppscotch
Open-source API development ecosystemPersonalEnterpriseAPI toolsWebDocker / self-hostDesktop★ 81kMITcommit 5 days agolive demo89worth
Best open-source API tools
Open-source API clients and testing tools.
22 projects · showing 1–20
Axiosaxios/axios
Promise-based HTTP client for browser and Node.jsPersonalEnterpriseAPI toolsLibrary / SDK★ 109kMITcommit yesterday86worth
CCXTccxt/ccxt
Unified API for 100+ crypto exchangesPersonalEnterpriseAPI toolsData & analyticsLibrary / SDK★ 44kMITcommit yesterday85worth
gRPCgrpc/grpc
High-performance RPC frameworkEnterpriseAPI toolsLibrary / SDK★ 45kApache-2.0commit 2 days ago84worth
FastAPIfastapi/fastapi
Fast Python framework for building APIsPersonalEnterpriseWeb frameworksAPI toolsLibrary / SDK★ 103kMITcommit 2 days ago83worth
Hyperswitchjuspay/hyperswitch
Open-source payments switchEnterpriseAPI toolsDocker / self-host★ 45kApache-2.0commit 3 days ago83worth
curlcurl/curl
Transfer data with URLsPersonalEnterpriseAPI toolsCLILibrary / SDK★ 43kcommit 22 hours ago83worth
tRPCtrpc/trpc
End-to-end typesafe APIsPersonalEnterpriseAPI toolsLibrary / SDK★ 41kMITcommit 17 hours ago82worth
InsomniaKong/insomnia
Cross-platform API clientPersonalEnterpriseAPI toolsDesktop★ 40kApache-2.0commit 5 days ago82worth
Hasurahasura/graphql-engine
Instant GraphQL APIs on your dataEnterpriseDatabases & backendsAPI toolsDocker / self-host★ 32kApache-2.0commit 2 weeks ago82worth
Requestspsf/requests
HTTP for humans in PythonPersonalEnterpriseAPI toolsLibrary / SDK★ 54kApache-2.0commit 2 weeks ago81worth
Protocol Buffersprotocolbuffers/protobuf
Google's data interchange formatEnterpriseAPI toolsLibrary / SDK★ 72kcommit 23 hours ago80worth
Apache Dubboapache/dubbo
RPC and microservice framework for JavaEnterpriseAPI toolsLibrary / SDK★ 42kApache-2.0commit 2 weeks ago80worth
Apache APISIXapache/apisix
Cloud-native API and AI gatewayEnterpriseAPI toolsInfra & DevOpsDocker / self-host★ 17kApache-2.0commit 6 days ago80worth
Brunousebruno/bruno
Offline-first API client that stores collections in GitPersonalEnterpriseAPI toolsDesktopCLI★ 47kMITcommit 3 days ago79worth
Kong GatewayKong/kong
API and AI gatewayEnterpriseAPI toolsInfra & DevOpsDocker / self-host★ 44kApache-2.0commit 6 days ago79worth
Novunovuhq/novu
Notification infrastructureEnterpriseAPI toolsCommunicationDocker / self-host★ 40kcommit 2 days ago78worth
AlamofireAlamofire/Alamofire
HTTP networking in SwiftPersonalEnterpriseAPI toolsLibrary / SDK★ 42kMITcommit 4 weeks ago77worth
tykTykTechnologies/tyk
Open source API and AI gateway supporting REST, GraphQL, and MCPPersonalEnterpriseMCP serversAPI toolsInfra & DevOpsDocker / self-host★ 11kcommit 3 days ago73worth
WxJavabinarywang/WxJava
Java SDK for WeChat developmentEnterpriseAPI toolsLibrary / SDK★ 33kApache-2.0commit last week72worth