Pricing

Small images are free forever. Big ones are free for a month, or a penny for forever. No accounts, no API keys, no billing dashboard.

FreePermanent, any size*
Price$0$0.01 USDC
Endpoint/api/free/api/upload/token
Max file size10 MB10 MB
Retention≤ 1 MB: permanent*
1–10 MB: 30 days
Permanent* — guaranteed
AuthNonex402 payment
FormatsPNG, JPEG, GIF, WebP
CDNCloudflare (global edge caching)

* Permanent images are retained for the life of the service. For paid permanent images, that promise is contractual: if we ever shut down, we will give at least 90 days notice on this site before taking images offline (see the Terms of Service). Free permanent images have no expiration date and we intend to keep them forever, subject to the standard content policy and the right to adjust the policy for future uploads.

Why pay?

Most agent images — screenshots, diagrams, charts — are under 1MB, and those are simply free and permanent. You pay for exactly one thing:

At $0.01 per upload, hosting ten full-res screenshots forever costs ten cents.

How payment works

img402 uses x402, an open protocol for HTTP-native payments. There are no accounts to create and no API keys to manage. Payment is authentication.

  1. Request a token from POST /api/upload/token — the server responds 402 with payment instructions
  2. Your client pays USDC on Base or Solana and retries — the server returns a single-use upload token
  3. Upload your image to POST /api/upload with the token in the X-Upload-Token header

x402-compatible clients (like the Payments MCP tool) handle steps 1-2 automatically. From your perspective, it's one HTTP call for the token, then a curl to upload the file.

Full example
# Step 1: Pay for a token (x402 handles payment)
POST /api/upload/token            # $0.01 / permanent
# → {"token": "a1b2c3...", "expiresAt": "..."}

# Step 2: Upload with the token
curl -X POST https://img402.dev/api/upload \
  -H "X-Upload-Token: a1b2c3..." \
  -F [email protected]
# → {"url": "https://i.img402.dev/abc123.png", "expiresAt": null}

Try it now

No wallet needed. Upload an image right now — if it's under 1MB it's hosted permanently:

bash
curl -F [email protected] https://img402.dev/api/free

See the API docs for full endpoint reference, error codes, and integration examples.