Last updated October 15, 2026
Terms of use and disclaimer
These terms cover tokens.md: the website, the TOKENS.md skill file, the API at /api/v1 and the MCP server at /mcp (together, “tokens.md”). By using tokens.md you agree to them. If you don’t agree, don’t use it.
1.Use at your own risk
tokens.md is provided “as is” and “as available”, without warranties of any kind, express or implied, including warranties of accuracy, completeness, timeliness, availability, fitness for a particular purpose and non-infringement. You use it at your own risk.
2.Information may be wrong or out of date
tokens.md shows no third-party data: no prices, rates, fees, market data or provider data, and it fetches nothing from other sites. Every number a tool uses comes from your request or from a generic formula the tool states. Those formulas are simplifications. They can be wrong for your case, and the skill and this site can be inaccurate, incomplete or not current.
Check every figure yourself, with the people and sources you rely on, before you act on it.
3.Not advice
Nothing here is financial, legal or professional advice, or a quote or bill from any provider. Nothing on tokens.md is a recommendation or endorsement of any provider, product or service. The TOKENS.md skill is guidance for software agents and doesn’t guarantee any outcome.
The tools calculate, compare and check what you send against rules you choose. They don’t approve, enforce, certify or verify anything, including anyone’s identity, they can miss problems, and a clean result isn’t an approval or an assurance. Nothing on tokens.md makes anything compliant with a law, regulation or standard, legally valid, or safe.
Token counts from estimate_tokens are estimates from a stated heuristic. They are not the count any model or provider will use or bill, and real counts can fall outside the range shown.
Prices, discounts, cache rules, window sizes and limits come from you. tokens.md has no provider prices or limits and doesn't check yours. A cost result is arithmetic, not a quote or a bill.
Tiers, budgets, caps and other settings are your own choices, written as instructions for your agent. tokens.md doesn't enforce them, and an agent can ignore them.
Data handling settings are instructions for your agent only. tokens.md doesn't check how any provider stores, retains or trains on data, and doesn't make prompts private or compliant with any law or policy.
check_ledger checks the numbers you send against the rules you send. It doesn't verify that the numbers are true, audit anything or approve spending.
Text sent to estimate_tokens is processed in memory to answer the request; tokens.md doesn’t store it or send it to analytics. Send it by POST: a GET puts the text in the URL, which server logs can record. The estimator on the page runs in your browser and sends nothing. Don't send secrets, keys or personal data to any tool.
4.You’re responsible for your agents
tokens.md never calls a model, spends money or holds API keys. Anything your agents do runs on your own accounts, under the terms of the services you use, at your cost. You are responsible for the settings you choose, for approvals, for your credentials and for following every service’s terms and the law. Settings an agent drafted are yours only once you agree to them.
5.Limitation of liability
To the fullest extent permitted by law, the operators and contributors of tokens.md are not liable for any direct, indirect, incidental, special, consequential or punitive damages, or for any loss of money, data, profits or business, arising from your use of, or inability to use, tokens.md or any information from it, even if told such loss was possible. Where liability can’t be excluded, our total liability is limited to US$100.
6.Sources and trademarks
The skill and the tools use generic terms and public, generic formulas. Names of standards, units and file formats are used only to describe them.
Where code on tokens.md (for example, an install command or a configuration file name) mentions a tool, client or service so that it works with it, that name is a trademark of its owner, used only for compatibility. tokens.md is not affiliated with, endorsed by or sponsored by any of them. If you own a mark and want us to change how we use it, write to us and we’ll review it.
7.Acceptable use
Don’t overload, attack or try to disrupt tokens.md, and don’t use it to break the law or anyone else’s terms. We may rate-limit, block, change or stop any part of tokens.md at any time, without notice.
8.Privacy
tokens.md has no accounts, sets no cookies and asks for no personal information. To learn what’s useful, we count page views, copies, skill fetches and API and MCP calls with anonymous server-side events. We store no IP addresses: a one-way daily hash of the IP address and browser string counts unique visitors, and the country comes from our host’s request headers. Counting runs only on the live site, and visiting with ?internal=1 turns it off in that browser.
Settings and anything you send to a tool are used only to answer that request. tokens.md doesn’t store them and doesn’t send their values to analytics: only the tool name, a known preset name and how many settings were given. Our host keeps standard server logs.
9.License
The TOKENS.md skill and this site’s code are under the MIT License. Anything owned by third parties is not covered by that license.
10.Changes
We may update these terms. The date at the top shows the current version, and continued use means you accept it.
Contact
contact: proofmdorg [ at ] gmail.com