Caterpillar · Rate Limits

Caterpillar Rate Limits

Caterpillar publishes real numeric limits for the ISO 15143-3 (AEMP 2.0) API in its developer guide. Access is scoped to the OAuth client id issued on subscription approval: a daily quota of 50,000 requests per client id shared across all endpoints, resetting at 12:00am GMT, plus a per-second throttle. The guide gives a general throttle of 10 calls per second per client id with a recommendation to stay at 7-8, and a higher 100 calls per second throttle for the Fleet Snapshot, Equipment Snapshot and Fault Codes Timeseries endpoints. Exhausting the quota returns HTTP 429 with the gateway's {"code":"429.002","description":"Quota rate limit exceeded."} envelope.

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

It captures 4 rate-limit definitions, measuring requests and unknown.

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

Tagged areas include Telematics, Heavy Equipment, Rate Limiting, and ISO 15143-3.

4 Limits Throttle: 429
TelematicsHeavy EquipmentRate LimitingISO 15143-3

Limits

Daily request quota per-client-id
requests
50000
General throttle per-client-id
requests
10
Snapshot / fault-code timeseries throttle per-client-id
requests
100
VisionLink API limits per-client-id
unknown

Policies

Client-id-scoped quota
Quota and throttle are evaluated per OAuth client id, not per user or per asset, and the daily quota is shared across every endpoint the client calls.
Backoff
On 429 the API returns code 429.002 with no Retry-After. Retry with exponential backoff and jitter, and treat the 12:00am GMT reset as the earliest point a quota exhaustion clears.
Telemetry cadence
VisionLink-derived data is updated on the platform's collection cadence; polling faster than the upstream refresh window burns quota without surfacing new data. Caterpillar's own recommendation to stay at 7-8 calls per second against a 10/sec ceiling points the same way.

Sources

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

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Tools for rate limits

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  • 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.
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