FeeSink

Prepaid HTTP endpoint checks API. Pay once, spend exactly 1 unit per performed check.

Invariants: prepaid only · 1 check = 1 unit · charging happens after the check · no subscriptions.

Step 1 — Generate a token (API key)
The token identifies your account. You create it yourself (self-issued).
⚠️ IMPORTANT
Your token is your only access key.
• Anyone with the token can spend its units.
• If you lose the token, funds tied to it cannot be recovered.
• There is no email, no password reset, and no recovery.
Store the token securely (password manager recommended).

Step 2 — Pay
Paste your token above, then pay. The payment credits prepaid units to that token (account).

After Payment — What To Do Next

1. Copy your token and store it securely. This token is your account and cannot be recovered if lost.

2. Add an endpoint you want to check (replace with your own URL):

$token = "your_token_here"

Invoke-RestMethod `
  -Method Post `
  -Uri "https://feesink.com/v1/endpoints" `
  -Headers @{ Authorization = "Bearer $token"; "Content-Type" = "application/json" } `
  -Body '{
    "url": "https://your-service.com/healthz",
    "interval_seconds": 300,
    "enabled": true
  }'

3. Checks will run only if:

4. Each performed check costs exactly 1 unit. Charging happens after the check.

For more details see Quick Start Guide.

Important: Your token is your only key. There is no email, no password reset, and no recovery. Save it securely before continuing.

API version: FEESINK-API-APP v2026.01.25-02
Contract: API_CONTRACT_v1.md
Landing v2026.01.26-01