head to head · open source
grpc-gateway vs open-agent-connector
grpc-gateway has 20,007 GitHub stars, 2,416 forks, 149 open issues and last shipped yesterday. open-agent-connector has 838 stars, 321 forks, 0 open issues and last shipped yesterday. grpc-gateway leads on adoption by 2,287% (20,007 vs 838 stars). grpc-gateway is written in Go under BSD-3-Clause; open-agent-connector is written in Python under Apache-2.0. grpc-gateway has attracted 12% as many forks as stars, open-agent-connector 38%. grpc-gateway was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| grpc-gateway | open-agent-connector | |
|---|---|---|
| GitHub stars | ★ 20K | ★ 838 |
| License | BSD-3-Clause | Apache-2.0 |
| Written in | Go | Python |
| Last push | 2026-10-13 | 2026-10-13 |
| Forks | ⑂ 2.4K | ⑂ 321 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick grpc-gateway if
- You weight community size — 20K stars and counting
- You want the BSD-3-Clause license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick open-agent-connector if
- You want the open-agent-connector feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Python
- You evaluated both and open-agent-connector fits your workflow better
About grpc-gateway
gRPC Gateway is a plugin for protoc , the Google protocol buffers compiler. It reads protobuf service definitions and generates a reverse proxy server that translates a RESTful HTTP API into gRPC. The generated server follows the google.api.http annotations attached to those service definitions, so a single set of protobuf services can be exposed in both gRPC and RESTful style at the same time. It lives in the gRPC ecosystem, is written in Go, and is distributed under the BSD 3 Clause license.
read the full grpc-gateway overview →
About open-agent-connector
Open Agent Connector is an open source, self hosted integration gateway that lets AI agents discover and execute actions against app APIs over the Model Context Protocol or a REST API, built for developers who want to inspect, run, and extend their own agent integration layer.
read the full open-agent-connector overview →
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Frequently asked questions
Is grpc-gateway or open-agent-connector more popular?
grpc-gateway has 20,007 GitHub stars and open-agent-connector has 838. grpc-gateway has the larger community by that measure.
Are grpc-gateway and open-agent-connector free?
Both are open source. grpc-gateway is licensed under BSD-3-Clause and open-agent-connector under Apache-2.0. Neither carries a licence fee.
What is the difference between grpc-gateway and open-agent-connector?
grpc-gateway is written in Go and open-agent-connector in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, grpc-gateway or open-agent-connector?
Choose grpc-gateway if you want the larger community (20,007 stars) or its BSD-3-Clause licence terms. Choose open-agent-connector if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.