Last updated · 2026-04-30

Terms & privacy.

TL;DR No account, no PII, no cookies (except the optional Vercel Analytics page-view counter, which doesn't fingerprint). You pay per HTTP call in USDC on Base mainnet. Failed calls are not refunded automatically — re-send with a fresh tx. Operator: tools402.dev, jurisdiction: France.

§1What we are

tools402.dev (the "Service") is a public HTTP API marketplace operated from a single VPS in Falkenstein (Germany, Hetzner). It exposes 156 micro-service endpoints under https://api.tools402.dev/v1/*. Each endpoint quotes a price in USDC and settles a payment on the Base mainnet (Layer-2 Ethereum, Coinbase). The wire protocol is Coinbase's x402 spec — a signed HTTP 402 quote followed by a USDC transfer() followed by a retry with an X-Payment header. The Service operator never holds, signs for, or has custody of caller wallets.

§2What we collect

Public on-chain payments. Every paid call corresponds to a public USDC transfer to the recipient wallet 0x3b9F199D258327E689Bc25C83E31cFcC051a759e on Base. Sender address, transaction hash, amount and timestamp are public on Basescan and we use them to verify your payment. We do not link them to any other identity.
Server access logs. Standard request metadata (timestamp, IP, path, status code, latency) is kept in rotating logs for up to 30 days for capacity planning and abuse mitigation. Request and response bodies are not logged.
Page-view analytics. The tools402.dev vitrine loads Vercel Web Analytics, which counts page views without using cookies or persistent identifiers. The API itself (api.tools402.dev) loads no analytics.
No PII. No account, no email, no API key, no profile. We do not collect names, addresses, or biometric data. Telegram/email contact you initiate stays in those channels — we don't import it into a CRM.

§3Refunds & risk

The atomic price of a single failed call is $0.0001 to $0.015. There is no batch billing, no float, no commitment.
If the server returns 5xx (upstream failure), there is no automatic refund. Your USDC is settled but the result was not delivered. To retry, sign a new transaction (replay protection rejects the consumed one).
10× refund commitment. If a paid call returns a verifiable non-delivery (server error, empty body, or provably wrong output), tools402 refunds 10× the atomic price of that call within 24 hours via a USDC transfer to the caller's from address. To claim: email support@tools402.dev with the tx hash and the response you received. Maximum refund per incident: $1.00. This commitment makes the economic cost of bad service exceed the revenue — the incentive is structural, not discretionary.
If you believe a refund is owed at scale, write to support@tools402.dev with the failed tx hashes; we evaluate case-by-case.

§4Acceptable use

The Service is for lawful API consumption by humans or autonomous agents you operate or are authorised to operate.
You must not use the Service to host, transmit, or process content that is illegal where the Service is operated (France) or where you operate from. CSAM, copyright infringement, malware delivery, automated abuse against third parties — all forbidden.
The OCR / vision / scraping endpoints fetch URLs you supply. You are responsible for having permission to fetch them.
We may rate-limit, blacklist a sender wallet, or refuse calls without notice if abuse is detected.

§5No warranty

The Service is provided "as is", without any warranty of fitness for a particular purpose, accuracy, or availability. We do our best (see /status) but downtime, data loss, model hallucination, and breaking changes can happen. Don't pay tools402 to do anything you can't independently verify.

§6Liability cap

The Service operator's aggregate liability for any claim related to the Service is capped at the total USDC you have paid to the recipient wallet in the 30 days preceding the claim. For most callers that is between $0 and a few dollars.

§7Jurisdiction

These terms are governed by French law. Any dispute that cannot be resolved by email is submitted to the courts of Bordeaux, France.

§8Changes

This page may be updated. The "Last updated" date at the top reflects the latest revision. Material changes are announced on /status.

§9Contact

Questions, bug reports, refund requests: support@tools402.dev. Verify the operator on-chain at the recipient address linked above.