HTML/CSS to Image · Rate Limits

Htmlcsstoimage Rate Limits

HTML/CSS to Image meters usage by the number of images rendered per month against the account's plan allowance. Concurrency and request throughput limits apply to protect the rendering infrastructure; once a plan's monthly image allowance is reached, additional images are billed as overages rather than hard-blocked. Specific per-plan throughput and concurrency values are not reconciled in this artifact.

Htmlcsstoimage Rate Limits is the machine-readable rate-limit profile for HTML/CSS to Image on the APIs.io network, conforming to the API Commons Rate Limits specification.

It captures 3 rate-limit definitions, measuring images, concurrent_requests, and requests.

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

Tagged areas include Image Generation, HTML to Image, Rendering, Templates, and Rate Limiting.

3 Limits Throttle: 429
Image GenerationHTML to ImageRenderingTemplatesRate LimitingQuotasThrottling

Limits

Monthly Image Allowance account
images
per plan (50 free up to 1,000,000 on Unlimited)
Number of images included per month by plan; overages billed at $10 per 1,000 images when exceeded.
Concurrency account
concurrent_requests
see provider documentation
Concurrent render limits protect the rendering pipeline; varies by plan.
Request Rate account
requests
see provider documentation
Throughput limits on API requests; varies by plan.

Policies

Overage Billing
Images beyond the monthly allowance are billed as overages at $10 per 1,000 images rather than rejected.
Backoff Strategy
Clients should implement exponential backoff with jitter and honor Retry-After on 429 responses.
Usage Visibility
The GET /v1/usage endpoint returns hourly, daily, and monthly usage so clients can track consumption against the plan allowance.

Sources