AWS API Gateway

AWS managed API gateway for creating, deploying, and managing REST, HTTP, and WebSocket APIs with Lambda integration, auth, throttling, and usage plans.

Evaluated Mar 07, 2026 (0d ago) vHTTP API v2
Homepage ↗ Other aws api-gateway http-api rest-api websocket lambda-integration
⚙ Agent Friendliness
59
/ 100
Can an agent use this?
🔒 Security
90
/ 100
Is it safe for agents?
⚡ Reliability
86
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
--
Documentation
82
Error Messages
78
Auth Simplicity
72
Rate Limits
80

🔒 Security

TLS Enforcement
100
Auth Strength
88
Scope Granularity
85
Dep. Hygiene
88
Secret Handling
87

IAM-based auth is very strong; JWT auth requires proper validation config. Resource policies for VPC/cross-account access.

⚡ Reliability

Uptime/SLA
90
Version Stability
85
Breaking Changes
83
Error Recovery
85
AF Security Reliability

Best When

Your backend is AWS Lambda and you need managed routing, auth, throttling, and monitoring without running your own API server.

Avoid When

You're not on AWS or need advanced API management features like GraphQL federation, developer portals, or complex transformations.

Use Cases

  • • Exposing AWS Lambda functions as HTTP endpoints for agent action APIs
  • • WebSocket APIs for bidirectional real-time agent communication
  • • Rate limiting and usage plans for multi-tenant agent API tiers
  • • JWT/Cognito authorization at the gateway layer before Lambda invocation
  • • Request/response transformation and mapping templates for legacy backend integration

Not For

  • • Non-AWS deployments — deeply tied to IAM, Lambda, and AWS ecosystem
  • • Complex API versioning strategies better handled by Kong or Apigee
  • • Teams wanting simple API gateway without AWS account complexity

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
No
SDK
Yes
Webhooks
No

Authentication

Methods: api_key service_account oauth2
OAuth: Yes Scopes: Yes

IAM auth, Cognito User Pools, Lambda authorizers (custom), or API keys. HTTP API supports JWT authorizers natively. REST API requires Lambda authorizer for JWT.

Pricing

Model: usage_based
Free tier: Yes
Requires CC: Yes

HTTP API is 70% cheaper than REST API — prefer HTTP API for new projects unless you need REST API-specific features (usage plans, request validation).

Agent Metadata

Pagination
none
Idempotent
No
Retry Guidance
Not documented

Known Gotchas

  • ⚠ REST API vs HTTP API are completely different products — HTTP API is newer, cheaper, but lacks REST API features (API keys, usage plans, request validation)
  • ⚠ Lambda proxy integration passes raw event — response must include statusCode, headers, and body as JSON string (not object)
  • ⚠ Cold start latency adds to gateway latency — HTTP API + Lambda can spike to 500ms+ on cold starts
  • ⚠ CORS must be configured on API Gateway AND returned in Lambda response headers for custom domains
  • ⚠ Stage variables not available in HTTP API — use environment variables on Lambda instead

Alternatives

kong-api apigee-api cloudflare-workers-api fastly-api

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Scores are editorial opinions as of 2026-03-07.

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Packages Evaluated
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