Amazon API Gateway From $1/mo · Free plan 9.4 Visit 
Google Cloud API Gateway
cloud.google.com
Spec sheet
- Purpose
- API Gateway provides secure access to backend services through a consistent REST API regardless of service implementation.Read 1 Oct 2026 · docs.cloud.google.com
- AI agent integration
- Public Preview MCP support lets API Gateway expose existing REST APIs to AI agents as tools without backend changes.Read 1 Oct 2026 · docs.cloud.google.com
- API specifications
- API Gateway supports OpenAPI 2.0 and OpenAPI 3.0 specifications, including all OpenAPI 3.0 patch versions.Read 1 Oct 2026 · docs.cloud.google.com
- Authentication
- Supported authentication mechanisms include API keys, Google authentication methods, and Google ID tokens.Read 1 Oct 2026 · docs.cloud.google.com
- Backend integrations
- Documentation describes integrations with Cloud Run, Cloud Run functions, and App Engine backends.Read 1 Oct 2026 · docs.cloud.google.com
- Encryption and residency
- Customer data in API Gateway is CMEK-compliant at rest, and the service meets regulatory and compliance requirements for data residency at rest.Read 1 Oct 2026 · docs.cloud.google.com
- Google Cloud integration
- API Gateway is natively integrated with Google Cloud and handles traffic management, authorization, and monitoring for concurrent API calls.Read 1 Oct 2026 · docs.cloud.google.com
- Management
- It is a distributed API management system providing hosting, logging, monitoring, and API security features.Read 1 Oct 2026 · docs.cloud.google.com
- Model routing
- Public Preview model routing accepts OpenAI-compatible prompts and routes them to Gemini, Anthropic Claude, and OpenAI GPT models in Model Garden.Read 1 Oct 2026 · docs.cloud.google.com
- Payload limits
- Maximum request and response payload sizes are 32 megabytes, while gRPC transcoding requests and responses are limited to 1 megabyte.Read 1 Oct 2026 · docs.cloud.google.com
- Resource limits
- The documented limits are 50 APIs total, 100 API configs per API, and 50 gateways per region.Read 1 Oct 2026 · docs.cloud.google.com
- Security transport
- API Gateway enforces TLS 1.2 or later for new security settings.Read 1 Oct 2026 · docs.cloud.google.com
- Support resources
- Google Cloud documentation lists community forums, support, release notes, and system status resources for API Gateway users.Read 1 Oct 2026 · docs.cloud.google.com
- Unsupported backend
- API Gateway does not support proxying to other Google Cloud APIs such as BigQuery APIs.Read 1 Oct 2026 · docs.cloud.google.com
- Usage observability
- API Gateway logs request and response information and tracks latency, traffic, and errors.Read 1 Oct 2026 · docs.cloud.google.com
Plans and prices
1B+ API calls $1.50 a month per month per billing account 1B+ API calls/month · cost per million API calls Read 1 Oct 2026 · cloud.google.com
2M-1B API calls $3 a month per month per billing account 2M-1B API calls/month · cost per million API calls Read 1 Oct 2026 · cloud.google.com
0-2M API calls Price not published per month per billing account 0-2M API calls/month · cost per million API calls Read 1 Oct 2026 · cloud.google.com
Where Specifiction places it
- Rest Apis#13 of 287.6
- Tool Calling#11 of 217.8
- Apis#15 of 267.7
- API Gateway Software#17 of 297.7
