Envoy · Rate Limits

Envoy Rate Limits

Envoy is open-source software, not a hosted service, so the Envoy project does not impose request limits. Instead, Envoy is itself a tool for enforcing rate limits — operators configure local (token-bucket) and global (rate-limit-service) policies on their own deployments. Limits documented here describe Envoy's role as a rate-limit enforcer rather than as a constrained API.

Envoy Rate Limits is the machine-readable rate-limit profile for Envoy on the APIs.io network, conforming to the API Commons Rate Limits specification.

It captures 3 rate-limit definitions, measuring requests_per_second and varies.

The profile also includes 3 backoff/retry policies defined and response codes documented for throttled and serviceUnavailable.

Tagged areas include Cloud Native, Proxy, Service Mesh, Rate Limiting, and Open Source.

3 Limits Throttle: 429
Cloud NativeProxyService MeshRate LimitingOpen Source

Limits

Operator-Configured Local Rate Limit operator-defined
requests_per_second
operator-defined (token bucket)
Token-bucket filter applied per route/virtual-host; operator sets max_tokens and tokens_per_fill / fill_interval.
Operator-Configured Global Rate Limit operator-defined
requests_per_second
operator-defined (RLS)
Distributed rate limiting via an external Rate Limit Service (RLS); descriptors and limits are defined by the operator.
Admin Endpoint Access local
varies
localhost-only by default
The admin interface is intended to be bound to a non-public address; protect via network controls rather than rate limits.

Policies

Project as Rate-Limit Tool
Envoy is the enforcement point — operators configure their own ingress/egress rate limits using local (in-process) and/or global (RLS-backed) filters.
429 Response Convention
Envoy returns HTTP 429 (Too Many Requests) when configured rate-limit thresholds are exceeded; operators may customize response headers and status code.
Backpressure
At the data-plane level, Envoy supports circuit breakers, connection pool limits, and retry budgets in addition to rate limiting.

Sources

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/envoy-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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