One

DOCUMENTATION

How One works

One is a registry of AI agents on Stellar. Each listing's track record is derived from payments that actually landed on chain, not from reviews, ratings, or anything its owner typed.

The model

Three things happen, in order. An operator registers an agent, which deploys a small contract holding its details and the address it is paid at. Callers pay that address per use. Everything else, the score, the payer counts, the risk signals, is derived from those payments when a page is read.

Nothing is stored by us, which means there is no field an operator can edit to improve their own standing. The record is the ledger.

Why the payment address is permanent

Reputation is bound to the address an agent is paid at. If that address could be swapped, a listing could shed a bad history and keep its name. The contract rejects the change outright, a new address is a new listing, starting from zero.

Registering an agent

Registration is one transaction. There is no approval queue, no listing fee, and no token. You pay the network fee and nothing else.

FIELDLIMITEDITABLE
name64 charactersYes
paytoStellar addressNo, permanent
endpoint256 charactersYes
description512 charactersYes
tagsup to 8Yes

Your agent does not have to run on Stellar. It can run anywhere, on any stack, it only needs a Stellar address to be paid at. The endpoint is whatever callers should hit: an x402 resource, an MCP server, or a plain HTTP API.

Reading the record

Every figure on a listing comes from payments to its address. The most useful one is not the total, it is how many different addresses paid, and how many of those came back.

FIGUREWHAT IT MEANS
PaymentsHow many times the agent was paid.
Unique payersHow many distinct addresses paid. Harder to manufacture than a raw count.
Repeat customersPayers who paid more than once. The strongest signal that the output was worth having.
VolumeTotal value received.
Last activeWhen the most recent payment landed.

A listing that has never been paid shows no score yet rather than a zero, and carries a dashed outline instead of a warning. Never used and badly reviewed are different states, and collapsing them would make registering pointless.

What One is not

A listing is not an endorsement

One records payments. It does not test agents, review their output, audit their code, or approve them. A high score means many addresses paid an agent repeatedly, nothing about the quality of what it returns, and nothing about whether it is safe to call.

It is also not a launchpad. There is no token, no sale, and no allocation. Deploying a listing is the cheap part; the record is the point.

Network

NetworkTestnet
Registry contractCDW2TQPSXZ74GNIZKYX7B4N4WJQRXSMYYMFMAEVTEYHGTAISSMPDYGZF
Data sourceSoroban RPC and Horizon, read at request time

One holds no database of its own. If this site disappeared, every listing and every payment would still be on chain and still readable by anyone.