Amazon AppSync · Rate Limits

Amazon AppSync Rate Limits

AWS AppSync service quotas from the AWS General Reference endpoints-and-quotas page. Adjustable quotas are raised through AWS Service Quotas.

Amazon AppSync Rate Limits is the rate-limit profile for Amazon AppSync on the APIs.io network — every limit transcribed verbatim from the provider’s own documentation on 2026-11-11.

It captures 12 rate-limit definitions, including Event APIs - Rate of connections per API — Each supported Region: 2,000 per second; Event APIs - Rate of inbound events per API — Each supported Region: 10,000 per second; Event APIs - Rate of outbound messages per API — Each supported Region: 1,000,000 per second.

Tagged areas include Amazon AppSync, GraphQL, API Management, Serverless, and Amazon Web Services.

12 Limits
Transcribed from the provider's documentation on 2026-11-11 — docs.aws.amazon.com/general/latest/gr/appsync.md.
View Source
Amazon AppSyncGraphQLAPI ManagementServerlessAmazon Web Services

Limits

Event APIs - Rate of connections per API per API
Each supported Region: 2,000 per second
· per 1 second
Event APIs - Rate of inbound events per API per API
Each supported Region: 10,000 per second
· per 1 second
Event APIs - Rate of outbound messages per API per API
Each supported Region: 1,000,000 per second
· per 1 second
Event APIs - Rate of publish requests per client connection per WebSocket connection
Each supported Region: 25 per second
· per 1 second
Event APIs - Rate of request tokens per account per Region
Each supported Region: 2,000 per second
· per 1 second
GraphQL APIs - Rate of connections per API per API
Each supported Region: 2,000 per second
· per 1 second
GraphQL APIs - Rate of inbound messages per API per API
Each supported Region: 10,000 per second
· per 1 second
GraphQL APIs - Rate of outbound messages per API per API
Each supported Region: 1,000,000 per second
· per 1 second
GraphQL APIs - Rate of request tokens per account per Region
us-east-1: 10,000 per second
· per 1 second
Each of the other supported Regions: 5,000 per second
Graphql APIs - Rate of subscription invalidation requests per account per Region
Each supported Region: 100 per second
· per 1 second
GraphQL APIs - Maximum query length per query
Each supported Region: 15,000
All APIs - Subscriptions per client connection per client connection
Each supported Region: 200

Work with this as data

Every rate limit here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for rate limits

4 MCP tools reach this
  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This rate limit 
curl "https://apis.io/api/v1/rate-limits/amazon-appsync-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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