Last updated: 2026-07-21
TollWarden ("the Service," "we," "us") is an advisory payment-security scanning service for the x402 protocol, operated by TollWarden, LLC, a Colorado limited liability company. You submit metadata about a payment your software is considering (or a payment request it has received) and the Service returns a machine-readable risk verdict — allow, flag, or block — together with the reasons behind it.
By calling any TollWarden endpoint, or by paying for a scan, you ("you," "the user") agree to these Terms. If you do not agree, do not use the Service.
TollWarden verdicts are risk signals, not guarantees, instructions, or financial, legal, or investment advice. They are produced by automated heuristics and shared data that are inherently incomplete and can produce both false positives (flagging safe payments) and false negatives (failing to flag harmful ones).
allow verdict does not certify that a payment is safe, legitimate, or free of fraud.block or flag verdict does not certify that a counterparty is malicious.TollWarden is non-custodial. We never take possession of, hold, control, sign for, move, or have access to your private keys, wallets, funds, tokens, or any other financial asset. All settlement of value occurs entirely through your own wallet and your chosen payment facilitator, outside the Service. We are not a money transmitter, custodian, exchange, broker, or payment processor, and we do not act as an escrow or intermediary for any transaction you scan.
Where enabled, the Service returns a cryptographic attestation over a verdict, bound to a hash of the specific payment and to an expiry time. Any downstream enforcement — for example a wallet policy that requires a valid TollWarden allow attestation before signing — is configured and operated by you at your own discretion and risk. We do not warrant that an attestation will be honored, verified correctly, or acted upon by any third-party system, and we are not responsible for the behavior of any wallet, agent, facilitator, or other software that consumes our output.
The Service includes a shared registry where users may report wallet addresses after an interaction, and may look up reports others have filed.
block; they raise a flag at most.You agree not to:
Verdicts and attestations are licensed to you for one purpose: informing and enforcing your own systems' payment decisions (including passing them to your own wallets, agents, and policy tooling). We may suspend or terminate access, and remove or quarantine submitted data, for violations. Automated or third-party clients that call the Service on your behalf act as you, and you are responsible for their compliance.
The Service, including its software, detection heuristics, models, documentation, and the selection, arrangement, and compilation of the reputation registry and outcome ledger, is the property of TollWarden, LLC and its licensors and is protected by copyright and other intellectual-property laws. The TollWarden source code is licensed separately under the Business Source License 1.1 (see the LICENSE file in the source repository); these Terms govern use of the hosted Service and do not grant you any license to the source code, and nothing in the source-code license grants you rights to the hosted Service, its data, or its signing keys. Individual reputation reports remain the responsibility of their submitters (§5); by submitting a report, dispute, or outcome you grant TollWarden, LLC a perpetual, irrevocable, worldwide, royalty-free license to store, process, display, and distribute it as part of the Service. "TollWarden" and the Service's logos may not be used to imply endorsement, affiliation, or that output not signed by our verdict key originated from us.
When you submit a payment for scanning, its content is processed in memory to produce a verdict and is not retained in plaintext. For accountability we keep a tamper-evident audit record of each decision that stores a cryptographic hash of the payment and non-sensitive transaction facts (network, recipient address, verdict, timestamp) — not the plaintext descriptions, reasons, metadata, or other content you submit. Do not submit secrets or personal data you are not authorized to share. See our Privacy Policy at https://tollwarden.com/privacy for details. Audit records are retained for 24 months (adjust to your compliance needs).
Paid scans are priced as published on the Service and settled via the x402 protocol in the stated stablecoin and network. A limited number of free calls may be offered per API key at our discretion and may be changed or withdrawn at any time. All fees are non-refundable except where required by law. You are responsible for any network/gas costs and for the funds used to pay for scans.
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, express or implied, including merchantability, fitness for a particular purpose, non-infringement, accuracy, or uninterrupted or error-free operation. We do not warrant that the Service will detect any particular threat, fraud, or vulnerability.
TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE WILL NOT BE LIABLE for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of funds, tokens, profits, data, goodwill, or business, arising out of or relating to your use of (or inability to use) the Service, any verdict or report, or any transaction you make or accept — even if advised of the possibility. Our total aggregate liability for all claims relating to the Service will not exceed the greater of USD 10 or the total fees you paid to us for the Service in the 3 months preceding the claim. Some jurisdictions do not allow certain limitations, so parts of this section may not apply to you.
You agree to indemnify and hold us harmless from claims, losses, and expenses (including reasonable legal fees) arising from your use of the Service, your transactions, your reputation reports, or your breach of these Terms.
We may modify these Terms or the Service at any time; material changes take effect when posted with an updated "Last updated" date, and continued use constitutes acceptance. We may suspend or discontinue the Service at any time. These Terms are governed by the laws of the State of Colorado, without regard to its conflict-of-laws rules, and disputes are subject to the state and federal courts located in Colorado.
TollWarden, LLC (Colorado) — contact@tollwarden.com Service: https://tollwarden.com