# Lorg Labs > Lorg Check: one call before money moves on Base and Ethereum. Ask about a token before buying it, or about an address before paying it, and get one signed answer: allow, caution or block. For AI agents (pay per check in USDC over x402, or MCP tools) and for the platforms that trade for their users (an API key). - The API: https://api.lorglabs.com. It describes itself at https://api.lorglabs.com/llms.txt and https://api.lorglabs.com/openapi.json. - A sandbox with a public key, for trying it: https://staging.lorglabs.com (see the quickstart). - Every page below is plain Markdown. The whole site in one file: https://lorglabs.com/llms-full.txt - Contact: info@lorglabs.com ## Docs - [Introduction](https://lorglabs.com/docs.md): What Lorg Check is, how a check works, the two checks, the three ways to connect, and where the service runs. - [5-minute quickstart](https://lorglabs.com/docs-quickstart.md): Make your first check in five minutes with the public key: one curl call, how to read the answer, and how to connect for real. - [Pay per check (x402)](https://lorglabs.com/docs-pay-per-check.md): How an AI agent pays for each check in USDC on Base with x402: no account, no key. The prices, the three steps, working code, and when it is never charged. - [MCP: Claude, Cursor and others](https://lorglabs.com/docs-mcp.md): Add Lorg Check's two checks as tools in Claude Code, Claude Desktop, Cursor, VS Code or any MCP client: the settings to paste, the tools, and what to ask. - [API keys for platforms](https://lorglabs.com/docs-api-keys.md): How a platform calls Lorg Check with an API key: the header, live and test keys, limits, safe retries, caching, and reading its own usage. - [Token check](https://lorglabs.com/docs-token-check.md): POST /v1/check/token: is this token safe to buy? The request fields, the trade size, what is checked, and the token facts in the answer. - [Address check](https://lorglabs.com/docs-address-check.md): POST /v1/check/quick: is this address safe to pay? The request, what is checked (sanctions, scam labels, sweeper wallets, address poisoning, funding), and the wallet facts in the answer. - [The answer](https://lorglabs.com/docs-answer.md): Every field of a Lorg Check answer, what allow, caution, block and unknown mean and what to do with each, freshness, and when to ask again. - [Reason codes](https://lorglabs.com/docs-reasons.md): Every reason code a Lorg Check answer can carry, by severity, with what it means. The live list is at GET /v1/reasons. - [Errors and limits](https://lorglabs.com/docs-errors.md): Every error Lorg Check returns, with its status and what to do, and the limits for keys, callers without a key and the public key. No error is ever charged. - [Signatures](https://lorglabs.com/docs-signatures.md): Every Lorg Check answer is signed with Ed25519. What is signed, where the public keys are, and how to check a signature in a few lines of code. - [Track record](https://lorglabs.com/docs-track-record.md): The public track record: new Base launches Lorg Check checks by itself, each answer signed and kept, what became of each token, and how the dates are proved in Bitcoin. - [Report a wrong answer](https://lorglabs.com/docs-report.md): POST /v1/report: tell us an answer was wrong. Free and open to anyone; a person reads every report, and a confirmed mistake becomes a permanent test. - [For AI agents and tools](https://lorglabs.com/docs-for-ai.md): Lorg Check made for software to read: llms.txt, every page as Markdown, the API's OpenAPI document with prices, its x402 discovery file, and its MCP tools. ## The product - [Lorg Labs: know it's a trap before you buy it](https://lorglabs.com/index.md): Lorg Check is the safety check your agent or trading platform runs before every trade. One call, about a second, a clear answer and the reason why. - [How it works](https://lorglabs.com/how-it-works.md): You ask, we check, you get one answer. What Lorg Check does with a token's address in the second before a trade. - [For platforms: a free pilot of Lorg Check](https://lorglabs.com/platforms.md): Try Lorg Check on your own traffic for four to six weeks, free, with a weekly report of what we caught and a named person to talk to. - [For agents: a check your AI agent runs before it trades](https://lorglabs.com/agents.md): How an AI agent uses Lorg Check: one call before a trade or a payment, one word to act on, a public key to try it with today, and three ways to connect: pay per check with no account, MCP, or an API key. - [Pricing](https://lorglabs.com/pricing.md): Pay for answers, not for attempts. A free pilot, a monthly plan for platforms, and pay-per-check for single agents. Errors and "unknown" are never charged. - [Evidence: how Lorg Check was tested](https://lorglabs.com/evidence.md): How we test Lorg Check, the results with their dates and sample sizes, the service's own live count, and the mistakes we made and fixed. - [Questions people ask](https://lorglabs.com/faq.md): Plain answers about Lorg Check: what it touches, what "allow" means, what happens when we can't check, speed, chains, records and proof. - [About Lorg Labs](https://lorglabs.com/about.md): Lorg Labs builds safety tools for software that handles money on its own. Lorg Check is our first product. ## Optional - [Terms of use](https://lorglabs.com/terms.md): The terms for using Lorg Check: what the service is and is not, paying per check, fair use, and liability. - [Privacy note](https://lorglabs.com/privacy.md): What Lorg Check records when a check is made, why, for how long, and who else receives it.