specification: API Commons Rate Limits
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/RateLimits
provider: Formlabs
providerId: formlabs
created: '2026-06-20'
modified: '2026-06-20'
reconciled: true
tags:
- 3D Printing
- Additive Manufacturing
- SLA
- SLS
- Hardware
- Dashboard
- Rate Limiting
- Quotas
- Throttling
description: >-
  The Formlabs Web API (Dashboard Developer API) enforces two documented rate
  limits: an IP-based limit of 100 requests per second and a user-based limit of
  1500 requests per hour. Requests that exceed a limit return HTTP 429 with a
  Retry-after header indicating when to retry. The Local API (PreFormServer) runs
  on the user's own machine and does not publish account-level rate limits.
notes: >-
  Limits are taken from the published Formlabs Web API reference and may change;
  re-verify against the live reference during reconciliation.
sources:
- https://formlabs-dashboard-api-resources.s3.amazonaws.com/formlabs-web-api-latest.html
- https://support.formlabs.com/s/topic/Developer-Portal
responseCodes:
  throttled: 429
limits:
- name: Requests Per Second (IP)
  scope: ip
  metric: requests
  limit: 100
  notes: IP-based limit of 100 requests per second on the Web API.
- name: Requests Per Hour (User)
  scope: account
  metric: requests
  limit: 1500
  notes: User-based limit of 1500 requests per hour on the Web API.
policies:
- name: Retry-After
  description: Throttled requests return HTTP 429 with a Retry-after header; clients should wait the indicated interval before retrying.
- name: Backoff Strategy
  description: Clients should implement exponential backoff with jitter and honor the Retry-after header.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com