Gate withdrawals on verified ad revenue
Let users earn freely and withdraw only what their verified ad activity actually paid for. Entitlement is spent at request time so pending requests cannot double-spend it.
Reference library · 133 entries · 15 free tools
The parts every faucet is built from.
Payouts, cooldowns, reward tables, captcha checks, ledger maths, popunders, postbacks. The pieces every faucet and crypto micro-economy site needs, written out properly instead of half-answered on a forum. No signup, no timer, no shortlink between you and the code.
Start here
Verify a shortlink completion with a signed return token
Providers do not postback, so the round trip is the only evidence. Single use, account bound, expiring, minimum dwell, and starting a new run kills the old one.
Call the FaucetPay v2 API with a scoped key
Bearer auth, JSON POST, and an envelope that is documented one way and returned another on the endpoint you care about most.
Verify an AdsLab postback signature
It is sha256 of the transaction id, a hyphen and your Security Hash — not the Publisher API key their integration page names.
A popunder that actually opens behind the page
The swap technique, plus the one line that stops the visitor's own click from cancelling it — the reason most popunder code silently loses the traffic it was supposed to send.
A claim cooldown the client cannot argue with
Reward the claim and start the next cooldown in one transaction, so a double-submitted form pays once instead of twice.
Tools & calculators — use them here, nothing to install
Satoshi and coin unit converter
Convert between satoshi, whole coins and USD for any coin, with the unit counts faucet APIs actually expect.
Faucet profitability calculator
Put in your traffic, claim rate and payout, and see whether the ad revenue covers what you are paying out.
Reward table designer
Set the prize tiers and weights, see the odds, the expected cost per claim and what the jackpot really costs you.
Cooldown and daily budget planner
Work backwards from a daily budget to a cooldown and reward that your faucet can actually sustain.
Crypto address validator
Check a wallet address before you pay it: base58check, bech32 and EIP-55 checksums for the coins faucets use.
Cron expression explainer
Paste a crontab line and get it in plain English, with the next few times it will actually run.
The index
TLS
Tools and Calculators
Converters, validators and calculators you can use here without copying anything.
0
FP
FaucetPay
Payouts, balance checks, merchant deposits and IPN verification against the FaucetPay API.
13
PAY
Payment Rails
Everything that moves coin that is not FaucetPay: node RPC, processors, address validation.
7
PRC
Price Feeds
Fetching, caching and sanity-checking coin prices before you pay anyone with them.
4
FCT
Faucet Mechanics
Claims, cooldowns, reward tables, mining accrual and the maths that keeps a faucet solvent.
7
FRD
Anti-Bot and Fraud
Captchas, rate limits, proxy detection, multi-account clustering and proof-of-render.
15
ADS
Ads, Traffic and Offerwalls
Banner serving, popunders, shortlink APIs, PTC runners and postback handling.
11
ADL
Ad Networks and Offerwalls
Task APIs, signed postbacks, offerwall SDKs and the integration details the docs get wrong.
9
SHL
Shortlinks and Link Services
Calling shortener APIs, signed return tokens, completion verification and loop protection.
6
SEC
Auth and Security
Password handling, sessions, CSRF, 2FA, headers and safe outbound requests.
9
REF
Referrals
Codes, attribution windows, commission models and filtering out fake referrals.
4
LDG
Money and Ledger
Integer balances, double-entry ledgers, atomic transfers and reconciliation.
7
OPS
Admin and Operations
Settings, migrations, cron on shared hosting, backups and read-only demo mode.
15
STA
Stats and Reporting
Date-series queries, dependency-free SVG charts and traffic source reporting.
6
SEO
SEO and Frontend
Head tags, sitemaps, clean URLs and the plumbing search engines expect.
6
NTF
Notifications
Transactional mail, Telegram and Discord alerts, and anomaly warnings.
4
ENG
Engagement and Content
Leaderboards, achievements, contests, provably fair draws and announcements.
6
LEG
Legal and Compliance
Policy scaffolds, cookie consent, data export and country blocking.
4
Recently added
Generate a QR code in PHP with no dependencies
For a TOTP enrolment screen, calling an image API posts the secret to a third party. A byte-mode encoder is a few hundred lines, and two specific bugs will cost you a day.
A minimum unit floor, so nothing pays zero
Cheap inventory rounds below one unit and displays as +0, which reads as broken. A floor of one unit costs a fraction of a cent and removes the whole class of complaint.
Rescale a live economy in one migration
Moving the unit rate means moving every stored figure with it, in one operation, guarded so a resumed run cannot do it twice.
Which lever to pull: more chances or a better rate
Payout is chances times value per chance times the rate. Users feel the count and barely notice the rate, so the count is the lever that changes behaviour.
Measure what a claim costs, do not model it
Compute cost per claim from payouts that actually happened. Two accounting bugs make the modelled figure wrong, and both are easy to ship without noticing.
Presence tracking that stores nothing worth stealing
A live view of who is on the site needs a hashed session id, a page name and two timestamps. No address, no user agent, no history.
Gate withdrawals on verified ad revenue
Let users earn freely and withdraw only what their verified ad activity actually paid for. Entitlement is spent at request time so pending requests cannot double-spend it.
Spot a referral ring by the browser it was made from
A referral you can reach from the referrer's own browser is self-referral. One query separates a farm from a community.