OSIsoft PI System · Rate Limits

Osisoft Pi Rate Limits

PI System APIs do not publish per-account rate limits. PI Web API throughput is governed by customer-deployed PI Server / IIS capacity. AVEVA CONNECT Data Services limits are enterprise-customer-specific and disclosed under contract.

Osisoft Pi Rate Limits is the machine-readable rate-limit profile for OSIsoft PI System on the APIs.io network, in the API Commons Rate Limits shape.

It captures 2 rate-limit definitions, measuring varies.

An exhausted limit returns HTTP 429.

This profile was written by API Evangelist and has not been verified against a page the provider published; treat every limit as unconfirmed until a dated transcription replaces it.

The profile also includes 2 backoff/retry policies defined and response codes documented for throttled.

Tagged areas include Rate Limiting, Industrial, Time Series, and Process Historian.

2 Limits Exhausted: HTTP 429
Method: generated, dated 2026-05-05.
Written by API Evangelist on 2026-05-05 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
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Rate LimitingIndustrialTime SeriesProcess Historian

Limits

PI Web API - Customer-Hosted deployment
varies
bounded by customer-deployed PI Server and IIS configuration
PI Web API runs on customer infrastructure; throughput depends on installation sizing rather than a vendor-set quota.
AVEVA CONNECT Data Services tenant
varies
see AVEVA CONNECT documentation behind developer login
Cloud service limits are tenant-specific and disclosed under enterprise agreement.

Policies

Customer-Operated Throttling
Because PI Web API is typically self-hosted, throttling, retry, and backoff decisions are made by the customer's API gateway or proxy in front of PI Server.
Backoff
Standard exponential backoff with jitter is recommended on any 429 / 503 response.

Sources

Work with this as data

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

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

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

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