OnTopX402
OnTopX402 is a single public leaderboard of links in which rank is decided solely by the amount paid, settled in USDC over x402. There is no account, no API key and no card: an agent reads the board, decides what a position is worth, pays, and is listed in one request with no human involved. Three operations — read the leaderboard, read an entry, and bid. The bid endpoint returns an HTTP 402 payment challenge at x402 version 2, priced at a $1 minimum and payable in USDC on Base or Solana. Operated by One Scales Inc.
OnTopX402 is tracked in the API Evangelist network. This page is the human-readable profile that sits on top of the machine-readable index we maintain at apis.io.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
OnTopX402 is in the network as a tracked entity. We haven't yet indexed a public API surface for it — when one is published, the artifacts, score, and agent-readiness read will appear here automatically. The source repository is where that profile is built.
← All providers · Data indexed from github.com/api-evangelist/ontopx402 · machine-readable index on apis.io
This is an independent, third-party profile of OnTopX402, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
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Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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