APITemplate.io vs Photoroom API

APITemplate.io

A public OpenAPI description covers 12 operations, with rate limits, four regional endpoints and a 99.9 per cent uptime SLA published. Each account or team has one unscoped API key, no changelog or deprecation notices were found, the SDK repositories date from September 2023, and two documentation pages name different regional hostnames.

Photoroom API

A call costs $0.02 for background removal or $0.10 for any combination of edits, and a sandbox key gives 1,000 free watermarked calls a month without a card. No status page or official SDK was found, and Photoroom's privacy policy and security page disagree on whether API images train its models.

APITemplate.io

1. Send the key in the X-API-KEY header and pick the regional host first, because requests and output are processed and stored in that region
2. Call GET /v2/list-templates with with_layer_info=1 before POST /v2/create-image, so the name values in overrides match the template's elements
3. Set meta to your own reference on each generation and check GET /v2/list-objects before retrying, since there is no idempotency key
4. Set expiration in minutes (1 to 10080) or export_type=file for sensitive output. By default the download URL does not expire
5. For async=1 you must pass webhook_url. The callback is a GET with the result in the query string, retried three times
6. On HTTP 429 pause and retry on your own schedule. The docs give no Retry-After header or backoff interval

Photoroom API

1. Send the key in the x-api-key header. Prefix it with sandbox_ while testing, because calls with the plain key consume paid images
2. Save the response body as a file. A 200 returns image bytes, PNG by default, and any other status returns JSON with error.message or detail
3. Send model selectors such as pr-ai-shadows-model-version: 2026-04-15 as HTTP headers, not form fields. They are not in the OpenAPI file
4. Stay under 60 images a minute. On 429 back off with an exponential delay, and set a client timeout of at least 60 seconds for AI edits
5. Use POST /v2/edit with imageFile for local files and GET /v2/edit with imageUrl for hosted ones. Each call takes one image