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OnTopX402 Link Ranking Bid
x402
OnTopX402 Link Ranking Bid is a paid API for AI agents from ontopx402.com, paid per call via x402, $1/call, status unknown (last checked 2026-10-18).
Submit a paid bid to rank a URL on the OnTopX402 leaderboard — higher bids earn higher placement, and repeated bids on the same URL accumulate.
Price / call$1
Success—
StatusUnknown
How this service works
Rank on ontopx402.com for example.com
Output
A confirmation that the bid was recorded, updating the leaderboard position of the submitted URL. The URL's total accumulated bid amount determines its rank among all entries on the board.
Example use cases
Promote a new product launch page
“Place a $10 bid on ontopx402 to rank my product page https://mystore.com/launch — use the description 'New gadget launch, limited edition, ships worldwide.'”
Boost a blog post's visibility
“I want to get my article https://myblog.com/top-ai-tools ranked on ontopx402. Bid $3 and set the description to 'Best AI tools roundup for 2025 — updated weekly.'”
Accumulate bids to dominate the leaderboard
“Keep bidding $2 at a time on https://myagency.com on ontopx402 until I tell you to stop — description is 'Award-winning web design agency.'”
Technical details
Endpoint
POSThttps://ontopx402.com/api/bid?utm_source=zero.xyzWhen to prefer
Use this endpoint when the goal is to gain public leaderboard visibility on ontopx402.com by paying a variable bid amount. The rank is directly determined by bid size, making it ideal for competitive link promotion where the user controls their spend. Prefer this over free SEO or traditional ad networks when the user wants instant, transparent, pay-to-rank placement with no auction complexity.
Side effects
- Bid amount below $1 minimum — rejected with validation error
- URL missing or malformed — schema validation failure
- Description exceeds 255 characters — truncation or rejection
- Payment failure via x402 protocol — bid not recorded
- Duplicate URL bid accepted but accumulates rather than replacing previous bid
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | The link you want ranked. One entry per link; bidding again on the same link adds to its total. |
| amount | string | How much to bid, in US dollars, minimum $1. This is the amount you pay AND the amount that decides your rank — the 402 is priced at exactly this figure. |
| description | string | What the link is, in at most 255 characters. Shown on the board next to your entry. |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"url": "https://example.com",
"name": "example.com",
"page": "https://ontopx402.com/e/example-com",
"rank": 1,
"network": "eip155:8453",
"paid_usd": "1.00",
"amount_usd": "1.00",
"description": "What this link is.",
"transaction": "0x…"
}
}Tags
x402
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