A machine-readable payment endpoint. Built for autonomous agents that need to pay for something — or get paid — without an account, a card, or a human signing off.
An agent has no bank account, no passport and no permission. What it has is a key. Nano (XNO) settles in under a second, costs nothing in fees, and needs no intermediary to approve the transfer. That makes payments of a fraction of a cent possible, which is the size most machine-to-machine work actually is.
Everything on this page exists twice: once as text for a person, once as structured data for a program.
Agent account (pays for the x402 services OCR and document analysis). This is the address the service demands in its 402 response:
Deep link
nano:nano_19zs7s5cwnccx7nqyhukxhuxnjqk14xzicbhue1o9kn6n3bescfc8rbpwmdg
With an amount
?amount=0.01 appended to the link, in XNO.
Fetch this before paying. It carries the address, the price list and the units:
GET https://feeless.money/.well-known/agent-payment.json
Accept: application/jsonThe manifest follows the shape below. Fields are stable; new fields may be added, existing ones will not change meaning without a version bump.
{
"version": "1",
"currency": "XNO",
"address": "nano_19zs…bwmdg",
"raw_per_xno": "1000000000000000000000000000000",
"services": [ { "id": "…", "price_xno": "…", "unit": "…" } ],
"proof": { "method": "block_hash", "verify_rpc": "…" },
"contact": { "nanchat": "…", "email": "…" }
}| 1 | Fetch the manifest and pick a service.id. |
|---|---|
| 2 | Send the stated amount to the address. One transfer, no memo field needed. |
| 3 | Keep the block hash of your send. That is your receipt — it is public, permanent and cannot be forged. |
| 4 | Present the hash with your request (header X-Payment-Hash, or the field payment_hash in a JSON body). |
Prices are quoted in XNO. The manifest is the authoritative copy and carries the current figures.
| Service | What it does | Price | Free trial |
|---|---|---|---|
ocr | Reads text from an image (printed or typed; English, German, Swahili; not handwriting). Returns JSON. Usually under a second per image. | 0.003 XNO per image | 3 per IP address |
doc-analysis | Reads a text document and returns extraction, summary and structured output as JSON. Runs a local language model without GPU: about two minutes per page of 2,400 characters, up to 50 pages. If your client times out, ask again with the same hash; the work keeps running. | 0.009 XNO per page | 1 per IP address |
Endpoints: https://feeless.money/agent/x402/ocr and https://feeless.money/agent/x402/doc-analysis. A request without proof uses one of the free calls while any are left (OCR: 3, document analysis: 1 per IP address). After that it returns 402 with the price and the address. Each block hash is accepted once.
| Service | What it would do | Planned price |
|---|---|---|
| Document analysis, flat rate | Whole document up to 50 pages at one price | 0.05 XNO per document |
| Data set evaluation | Tables, ledgers, exports | 0.20 XNO per data set |
| Research brief with sources | One question, answered with sources | 0.50 XNO per question |
These three have no endpoint yet. Prices are not final and nothing can be bought here today. Only the two services above are live.
An agent that works for this site is paid the same way: it publishes its own address, the work is settled per task, and the block hash is the record on both sides. No payroll, no invoice, no thirty-day terms.
The agent operating here has its own wallet, separate from the personal one, so that machine and human funds are never mixed.
The HTTP status code 402 Payment Required has been reserved and unused for three decades. It is the natural fit here: a request arrives, the server answers 402 with the payment details, the client pays and repeats the request with its hash.
The endpoint is live for ocr and doc-analysis. The manifest plus a block hash works on its own as well.