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: 123FormBuilder
providerId: 123formbuilder
created: '2026-05-28'
modified: '2026-05-28'
tags:
  - Online Forms
  - Form Builder
  - Submissions
  - Rate Limiting
  - Quotas
  - Throttling
description: |
  Rate limit definitions for the 123FormBuilder REST API v2. Reconciles the published per-plan
  daily API call quotas with the implicit per-form webhook ceiling. The provider does not
  publicly document burst, per-second, or per-minute throttles; values marked "unspecified"
  must be confirmed with support before being relied on contractually.
headers:
  limit: unspecified
  remaining: unspecified
  reset: unspecified
  retryAfter: Retry-After
  policy: unspecified
responseCodes:
  throttled: 429
  quotaExceeded: 429
  serviceUnavailable: 503
limits:
  - tier: free
    name: Free Plan Daily API Quota
    scope: api-key
    metric: requests_per_day
    limit: 100
    timeFrame: day
    applies:
      - 123FormBuilder REST API v2
    notes: Documented as "100 calls/day maximum" for the Basic plan; exceeding returns "You have exceeded the number of requests for today!"
  - tier: gold
    name: Gold Plan Daily API Quota
    scope: api-key
    metric: requests_per_day
    limit: -1
    timeFrame: day
    applies:
      - 123FormBuilder REST API v2
    notes: Documented as unlimited daily API calls subject to fair-use.
  - tier: platinum
    name: Platinum Plan Daily API Quota
    scope: api-key
    metric: requests_per_day
    limit: -1
    timeFrame: day
    applies:
      - 123FormBuilder REST API v2
    notes: Documented as unlimited daily API calls subject to fair-use.
  - tier: diamond
    name: Diamond Plan Daily API Quota
    scope: api-key
    metric: requests_per_day
    limit: -1
    timeFrame: day
    applies:
      - 123FormBuilder REST API v2
    notes: Documented as unlimited daily API calls subject to fair-use.
  - tier: enterprise
    name: Enterprise Custom Quota
    scope: api-key
    metric: requests_per_day
    limit: -1
    timeFrame: day
    applies:
      - 123FormBuilder REST API v2
    notes: Negotiated per enterprise agreement; SLA-backed.
  - tier: all
    name: Webhooks Per Form
    scope: form
    metric: webhooks
    limit: 10
    timeFrame: lifetime
    applies:
      - 123FormBuilder REST API v2
      - Group Webhooks
    notes: Maximum of 10 webhooks per form; exceeding returns "You have more than 10 webhooks set for this form!"
  - tier: all
    name: HTTPS Required
    scope: transport
    metric: scheme
    limit: 1
    timeFrame: per-request
    applies:
      - 123FormBuilder REST API v2
    notes: Plaintext HTTP is rejected with "You can only access our API via HTTPS!"
recovery:
  - strategy: backoff
    description: When a 429 is returned, wait until the start of the next day (UTC) for the daily quota window to reset on Free
      plans. Paid plans should slow down request rate and retry after a few seconds; consult support for sustained throughput
      requirements.
  - strategy: upgrade
    description: Upgrade from Basic/Free to Gold or higher to lift the 100 calls/day ceiling.
sources:
  - https://www.123formbuilder.com/docs/apidocumentation/
  - https://www.123formbuilder.com/docs/api-responses/
  - https://www.123formbuilder.com/developer/api-v2/