generated: '2026-08-29'
method: searched
source: >-
  https://docs.synadia.com/cloud/pricing, https://docs.synadia.com/cloud/faq, and the two OpenAPI
  specs. Searched for HTTP rate limits, 429 responses and rate-limit response headers; none exist.
name: Synadia Communications rate limits
description: >-
  Synadia publishes NO HTTP rate limits for either the Control Plane API or the NATS HTTP Gateway.
  No 429 status is declared anywhere in either OpenAPI, no X-RateLimit-*, RateLimit-* or Retry-After
  header appears in any response, and the docs and FAQ contain no rate-limit section. What Synadia
  does publish are RESOURCE QUOTAS per pricing tier - connections, subscriptions, streams, storage,
  network data - which constrain the messaging fabric rather than the API request rate. Those are
  recorded here as the closest published constraint, clearly distinguished from request throttling.
limit_count: 0
request_rate_limits_published: false
response_headers: []
exhaustion_status: null
retry_after: false
note: >-
  An agent driving the Control Plane API has no runtime backpressure signal. It cannot detect
  throttling from headers, cannot learn a reset time, and has no documented ceiling to stay under.
  Publishing RateLimit-* headers per RFC 9331 would be the single highest-value runtime addition to
  this API.
probed:
- url: https://docs.synadia.com/cloud/faq
  status: 200
  result: no rate limit, throttle, 429 or Retry-After mention
- url: https://docs.synadia.com/cloud/pricing
  status: 200
  result: resource quotas only, no request-rate limits
- source: openapi/synadia-communications-control-plane-openapi.yaml
  result: 245 operations, zero 429 responses, zero rate-limit headers
- source: openapi/synadia-communications-http-gateway-openapi.json
  result: 30 operations, zero 429 responses, zero rate-limit headers
resource_quotas:
  note: >-
    NOT request-rate limits. These are per-tier capacity ceilings on the NATS fabric, published on the
    pricing page, and are the only published numeric constraints on the service.
  source: https://docs.synadia.com/cloud/pricing
  quotas:
  - tier: Personal
    connections: 10
    subscriptions_per_connection: 100
    leaf_nodes: 2
    max_message_size: 1 MiB
    network_data: 10 GiB
  - tier: Starter
    connections: 100
    subscriptions_per_connection: 1000
    leaf_nodes: 3
    max_message_size: 1 MiB
    network_data: 100 GiB
  - tier: Pro
    connections: 1000
    subscriptions_per_connection: 10000
    leaf_nodes: 10
    max_message_size: 2 MiB
    network_data: 1 TiB
  - tier: Enterprise
    connections: custom
    max_message_size: 8 MiB
    network_data: 2 TiB