gRPC vs OpenAPI
Updated Oct 18, 2026
Quick Verdict
OpenAPI has 6.5x more GitHub stars.
GitHub Stars
gRPC 4.8K
vs
OpenAPI 31.3K
Downloads/wk
gRPC 29.0M
vs
OpenAPI 0
Contributors
gRPC 235
vs
OpenAPI 256
Bundle Size
gRPC 103.9 KB
vs
OpenAPI 138.9 KB
Detailed Comparison
Side-by-side metrics from GitHub and npm
Metric
gRPC
OpenAPI
GitHub Stars
4.8K
31.3K
Weekly Downloads
29.0M
0
Forks
721
9.2K
Open Issues
242
81
Contributors
235
256
Bundle Size (gzip)
103.9 KB
138.9 KB
Dependencies
2
6
Latest Version
1.14.6
7.13.0
Last Commit
Oct 8, 2026
Oct 15, 2026
License
Apache-2.0
Apache-2.0
First Published
Apr 30, 2018
Oct 17, 2020
Feature Comparison
Framework capabilities at a glance
Feature
gRPC
OpenAPI
Typescript
Code Gen
Type Safe
Streaming
Validation
Caching
Frequently Asked Questions
Common questions about gRPC vs OpenAPI
Is gRPC better than OpenAPI?
It depends on your use case. gRPC is high-performance, open-source universal rpc framework, while OpenAPI is standard specification for describing restful apis. Compare the stats and features above to decide which fits your needs.
Is gRPC still maintained in 2026?
Yes, gRPC was last updated on October 8, 2026 and has 235 contributors.
Can I migrate from gRPC to OpenAPI?
Migration complexity depends on how deeply gRPC is integrated into your project. Both tools serve similar purposes in the API Tools & Protocols space, so migration is generally feasible with proper planning.
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