EraseText

Creating your first key grants a one-time50 API credittrial — 50 calls, no card. After that a key spends your prepaid API credits first, then any monthly plan credits.

const body = new FormData(); body.append("image_file", file); // a File from <input type="file"> const res = await fetch("https://api.erasetext.com/v1/erase", { method: "POST", headers: { "X-Api-Key": "et_…" }, body, }); const blob = await res.blob(); // Loose alias AIs often generate — JSON { output_url } data URL for  // POST https://erasetext.com/api/mcp/erase (also api.erasetext.com/api/mcp/erase)

{ "mcpServers": { "erasetext": { "url": "https://api.erasetext.com/mcp", "headers": { "X-Api-Key": "et_…" } } } }

Every successful/erasespends1 credit— one flat price, whatever the image size or output format. Failures are not charged, and neither isGET /account.

Multipart or JSON. Returns image bytes by default.

- image_fileorimage_url— required
- mask_file/mask_url— optional; omit for all-text detect
- format=webp|png|jpg— default webp
- resolution— short-edge target for the model, clamped to 256–1024, default 512
- paste_back— defaulttrue; keeps original pixels outside the erased area
- return_boxes=1— OCR quads inX-Ocr-Boxes. Only applies when you send no mask, since that is when detection runs
- response=json— return JSON with base64 instead of raw bytes

Mask polarity:white (any channel value above 127) marks what to erase, black keeps. Send it at the same aspect ratio as the image. Omit the mask and detection builds one for every piece of text it finds.

- Image and mask must each be between 32 bytes and25 MB, whether uploaded or fetched from a URL. JPEG, PNG and WebP are the safe input formats.
- /eraseissynchronous: it holds the connection until the image is ready. Allow up to 90 seconds — past that you get504and are not charged. There is no callback or polling mode yet, so set a client timeout above 90s and retry the whole call.
- A typical call lands in a few seconds; a cold model start is the slow case the timeout covers. Concurrency is bounded by your rate limit, so spread a batch across the minute rather than firing it all at once.
- Nothing you send is kept for the API path — bytes are processed in flight and the result is returned in the response. Only the web editor stores uploads, and those expire after an hour.
- The/v1prefix is the contract: fields are only added, never removed or retyped. Breaking changes would ship as a new prefix.

Every failure is JSON shaped{ "error": "…", "code": "…" }. Branch oncode, not on the prose. Some codes add fields —402carriesrequiredandbalance,429carriesretryAfter.

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