Neso Rate Limits
NESO publishes courtesy rate guidance in prose on the Data Portal API guidance page rather than enforcing a signalled quota. There are no RateLimit-* headers and no 429 responses were observed; the stated enforcement mechanism is IP blocking when a consumer degrades the service. The Carbon Intensity API publishes no rate limit at all.
Neso Rate Limits is the machine-readable rate-limit profile for National Energy System Operator (NESO) on the APIs.io network, conforming to the API Commons Rate Limits specification.
It captures 3 rate-limit definitions, measuring requests_per_second, requests_per_minute, and unpublished.
The profile also includes response codes documented for throttled.
Tagged areas include Rate Limiting, Open Data, and Energy.
Limits
Sources
Work with this as data
Every rate limit here is available over the APIs.io API and to AI agents over MCP.