Campaignmonitor Rate Limits
Rate limiting for the Campaign Monitor API. Campaign Monitor limits only its /transactional endpoints and does not publish the numeric ceiling — it publishes the runtime signal instead (three X-RateLimit-* response headers and a 429), which is what an agent actually needs. The rest of the REST surface carries no published limit. Volume ceilings that DO bite in practice are per-operation batch caps and plan-level send caps, recorded below.
Campaignmonitor Rate Limits is the machine-readable rate-limit profile for Campaign Monitor on the APIs.io network, in the API Commons Rate Limits shape.
It captures 2 rate-limit definitions.
Limit state is signalled in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers.
Tagged areas include Email Marketing, Campaigns, Subscribers, Transactional Email, and Segments.
X-RateLimit-LimitX-RateLimit-RemainingX-RateLimit-Reset
Limits
Work with this as data
Every rate limit here is available over the APIs.io API and to AI agents over MCP.