> ## Documentation Index > Fetch the complete documentation index at: https://docs.payreque.st/llms.txt > Use this file to discover all available pages before exploring further. # payments.txt > Every PayRequest page auto-publishes a machine-readable payments.txt manifest — so AI agents can discover your wallets, payment terms, and checkout URL without any integration work. # payments.txt `payments.txt` is an open standard that makes your payment profile readable by AI agents and autonomous billing systems. Think of it as `robots.txt` or `llms.txt` — but instead of telling crawlers what to skip or giving LLMs context, it tells agents exactly how to pay you. Every PayRequest page generates one automatically. No setup required. **Auto-generated.** Fill in your wallet address and business details in PayRequest settings — your `payments.txt` is live instantly at `payrequest.me/yourhandle/payments.txt`. ## What it looks like ```ini theme={null} # PAYMENTS.TXT MANIFEST (X402 COMPLIANT) # Generated by PayRequest.me for @yourhandle [meta] version = "1.0" status = "active" x402_discovery_url = "https://payrequest.app/api/v1/x402/yourhandle" x402_payment_endpoint = "https://payrequest.app/api/v1/x402/yourhandle/pay" [payment_terms] due_days = 14 late_fee_percentage = 2.0 preferred_fiat = "EUR" preferred_crypto = "USDC" [crypto_rails] supported_standards = ["EVM", "Solana"] primary_stablecoin = "USDC" evm_address = "0xYour…" solana_address = "YourSolana…" [fiat_rails] sepa_iban = "NL…" sepa_bic = "BUNQ…" [hosted_checkout] human_fallback_url = "https://payrequest.me/yourhandle" ``` Only sections with data are included — if you haven't connected a Solana wallet, the `solana_address` line won't appear. ## What gets included Your EVM address (Base / Ethereum) and Solana address from Provider Settings. Only included if you've connected them. IBAN and BIC from your Business Details. Agents can use these for SEPA bank transfers. Default due days and late fee percentage. Agents use these when creating invoices on your behalf. Machine-payment URLs so agents can pay invoices autonomously via the X402 protocol — no human checkout needed. ## Your manifest URL Your `payments.txt` is always at: ``` https://payrequest.me/yourhandle/payments.txt ``` Replace `yourhandle` with your PayRequest handle (the one in `payrequest.me/yourhandle`). You can check what your manifest looks like right now by visiting that URL in your browser. It's public and human-readable. ## HTML discovery tag Your payment page automatically includes a `` tag in its `` so agents parsing your page HTML can find the manifest without guessing: ```html theme={null} ``` ## How agents use it When an AI agent needs to pay you — for an invoice, a product, or API access — it can: 1. Read your `payments.txt` to discover your wallets and preferred payment method 2. Check your `x402_payment_endpoint` for autonomous USDC payment (see [X402 Autonomous Payments](/integrations/x402-autonomous-payments)) 3. Fall back to `human_fallback_url` if it needs a human to complete the payment ## Keeping it up to date Your manifest is generated live from your PayRequest account data. To update it: * **Change your EVM wallet** — go to Provider Settings → Crypto (USDC) → Connect Wallet * **Add a Solana wallet** — Provider Settings → Solana (pump.fun) * **Update your IBAN** — Business Settings → Business Details → IBAN / BIC * **Change your currency** — Business Settings → Business Details → Default Currency Changes appear in your manifest immediately — no cache to clear. ## Open standard `payments.txt` is an open standard. The full specification and implementation guides for PHP, Node.js, and other platforms are on GitHub: Full spec, format reference, and implementation guides. MIT licensed — free to implement on any platform.