Effective 3 August 2026 · Last updated 3 August 2026
Pion is free, unofficial, experimental software provided as-is with no warranty. It is not affiliated with Pi Network. It targets Pi Testnet, where the currency has no monetary value. You are responsible for your own credentials, your own agent, and anything you choose to send.
This summary is for orientation only and is not part of the agreement. The numbered sections below are.
These Terms of Service (“Terms”) are a binding agreement between you (“you”)
and Justin Black, an individual operating the Pion project in the State of
Texas, USA (“we”, “us”, “Pion”). They govern your use of the pionmcp.com
website, the pion-mcp software package, and any endpoint or
service we make available (together, the “Service”).
By using the Service you accept these Terms. If you do not accept them, do not use the Service. If you are using the Service for an organisation, you represent that you have authority to bind that organisation.
You must be at least 13 years old, and old enough to form a binding contract where you live, to use the Service.
Pion is an independent, unofficial, open-source community project. It is not affiliated with, sponsored by, endorsed by, or in any way officially connected to Pi Network, the Pi Community Company, SocialChain, or any of their subsidiaries or affiliates. The names “Pi”, “Pi Network”, and related marks belong to their respective owners and are used here only descriptively, to say what Pion interoperates with.
Your use of Pi Network itself — the Pi app, the Pi Browser, the Developer Portal, and the Pi blockchain — is governed by Pi Network's own terms and policies, not by these Terms. Nothing here grants you any right in relation to Pi Network, and we make no promises on Pi Network's behalf.
Pion is a Model Context Protocol server that lets an AI agent read data from the Pi Network blockchain. In its default configuration it exposes read-only tools — wallet balances, payment history, transaction lookup, and access-token verification — and holds no keys and no funds.
Pion is a tool. It is not a wallet, an exchange, a custodian, a broker, a money transmitter, or a financial institution. We never take custody of your Pi, your tokens, your keys, or your funds, and we have no ability to move, freeze, or recover them.
Nothing in the Service or its documentation is financial, investment, tax, accounting, or legal advice. Do your own research and take your own professional advice.
Pion is pre-1.0 software under active development. Interfaces, tool names, behaviour, and availability may change or break without notice. Bugs are expected. Do not build anything you cannot afford to have break.
The Service targets Pi Testnet. Test-Pi has no monetary value, is not convertible to Pi or to any fiat currency, and is not a security, commodity, investment, or store of value of any kind. Nothing you do on testnet creates an entitlement to anything of value.
send_payment is experimental and is disabled by default — it is
not merely switched off but never registered, so an unarmed install cannot
see or invoke it. Enabling it requires four separate, deliberate acts by you,
including setting a per-payment ceiling. If you arm it, you accept full
responsibility for every payment it makes. The ceiling is a safety limit
you choose; it is not a guarantee by us.
The /pay.html page is a developer test harness that moves a
fixed, trivial amount of Test-Pi so you can verify your own setup. It is not
a product, not a donation, and not a purchase. It buys you nothing, entitles
you to nothing, and is not refundable — see section 7.
Agents can be manipulated. The realistic risk with an AI agent that can spend is not a stolen key — it is an agent persuaded to act by instructions embedded in data it just read. If you give an agent spending power, you are accepting that risk. Set a ceiling, keep a human in the loop, and never arm payments with credentials whose loss would matter.
You are solely responsible for:
You agree not to:
We may block, rate-limit, or refuse access to our hosted endpoints for any use we reasonably believe breaches this section, without notice.
Transactions written to a blockchain are final. Neither we nor Pi Network can reverse, cancel, refund, or alter a confirmed transaction, and we cannot recover value sent to a wrong address or lost to a mistaken instruction. Any payment made through or in connection with the Service is non-refundable by us, because we never receive or hold it.
Blockchain networks can also fail in ways nobody controls: congestion, outages, forks, reorganisations, protocol changes, and upstream API defects. The Service depends on Pi Network's infrastructure and inherits every one of those failure modes. We do not guarantee that any transaction will confirm, or that a reported result reflects the true state of the chain.
The Service depends on and links to things we do not operate — Pi Network's Horizon and Platform APIs, the Pi SDK and Pi Browser, Netlify, GitHub, npm, Google Fonts, and your own AI client. We are not responsible for their availability, accuracy, security, pricing, or conduct, and their terms govern your use of them. A link is not an endorsement.
The Pion source code is licensed under the Apache License, Version 2.0, and the text of that licence governs your rights in the code — including the right to use, modify, and redistribute it. Where these Terms and the Apache Licence differ as to the software itself, the Apache Licence prevails. These Terms govern the website and any hosted endpoints, which the licence does not cover.
The Pion name, the site's text, and its design are ours and are not granted to you by the code licence. You may of course refer to Pion by name, and you may fork the project as the licence permits — but do not present a fork as the official project.
If you contribute to the project, your contribution is submitted under Apache-2.0 as set out in section 5 of that licence.
The Service is provided free of charge with no service level commitment. We may change, suspend, limit, or discontinue any part of it — including the website and the hosted endpoints — at any time, for any reason, without notice and without liability to you. The software is open source, so a discontinued Service does not take your ability to run your own copy with it.
THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE”, WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND. TO THE MAXIMUM EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES, EXPRESS, IMPLIED, OR STATUTORY, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, ACCURACY, AND NON-INFRINGEMENT.
WE DO NOT WARRANT THAT THE SERVICE WILL BE UNINTERRUPTED, TIMELY, SECURE, OR ERROR-FREE, THAT DEFECTS WILL BE CORRECTED, OR THAT ANY DATA IT RETURNS IS ACCURATE, COMPLETE, OR CURRENT. YOU USE THE SERVICE ENTIRELY AT YOUR OWN RISK.
Some jurisdictions do not allow the exclusion of certain warranties. To that extent, the exclusions above may not apply to you, and you may have rights that these Terms cannot limit.
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 PROFITS, REVENUE, DATA, GOODWILL, CRYPTOCURRENCY, TOKENS, OR OTHER DIGITAL ASSETS, ARISING OUT OF OR RELATING TO THE SERVICE, WHETHER IN CONTRACT, TORT, STRICT LIABILITY, OR ANY OTHER THEORY, AND EVEN IF WE HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
OUR TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATING TO THE SERVICE OR THESE TERMS WILL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID US FOR THE SERVICE IN THE TWELVE MONTHS BEFORE THE CLAIM AROSE, WHICH FOR ESSENTIALLY EVERY USER IS ZERO, AND (B) USD $100.
These limits apply even if a limited remedy fails of its essential purpose, and they reflect a reasonable allocation of risk for software provided free of charge. Nothing in these Terms excludes liability that cannot lawfully be excluded — including liability for fraud, fraudulent misrepresentation, or death or personal injury caused by negligence.
You agree to indemnify and hold harmless Justin Black and the Pion project from any claim, demand, loss, liability, or expense (including reasonable legal fees) arising out of your use of the Service, your breach of these Terms, your violation of any law or third-party right, or the actions of any AI agent you connect to the Service.
These Terms are governed by the laws of the State of Texas, USA, without regard to its conflict-of-laws rules. The United Nations Convention on Contracts for the International Sale of Goods does not apply.
You and we agree that any dispute arising out of or relating to these Terms or the Service will be brought exclusively in the state or federal courts located in Texas, and each of us consents to personal jurisdiction there. If you are a consumer, this does not deprive you of the protection of mandatory consumer-law rights available to you where you live, including any right to bring proceedings in your local courts.
Before filing anything, please email contact@pionmcp.com. Most problems with a free open-source project are faster to solve that way.
We may revise these Terms. The current version is always posted here with its “last updated” date, and the full revision history is public in the project repository. For material changes we will note the change prominently on the site. Continuing to use the Service after a revision takes effect means you accept it; if you do not, stop using the Service.
Justin Black — Pion
contact@pionmcp.com
github.com/jleeblack/pion-mcp