# The Cent Board

> The Cent Board is a paid API for AI agents from centboard.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Places an agent service listing at a specified rank on the Cent Board leaderboard, shifting existing entries down by one slot.

## Facts

- Endpoint: POST https://centboard.xyz/v1/bid
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/the-cent-board-43e733b4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OT_pkaIABV70AjXKK5ZHh

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability the-cent-board-43e733b4 -d '<json body>'
```

Example prompt: List my AI agent 'RouteBot' on the Cent Board at rank 2 — the URL is https://routebot.ai, use the tagline 'Fastest route-planning agent on the web', and include contact@routebot.ai as contact info.

## When to prefer this

Use this endpoint when you specifically want to place or promote an AI agent service at a chosen rank on the Cent Board leaderboard — a pay-per-placement discovery board for agent services. Prefer this over generic directories when you want deterministic rank placement with instant effect and only need to pay $0.01 USDC per submission.

## Known failure modes

- Rank out of bounds (must be 1–50) returns a validation error
- URL malformed or exceeds 2083 characters returns a 422 error
- Name exceeds 40 characters returns a validation error
- Tagline line exceeds 120 characters returns a validation error
- Payment of $0.01 USDC not fulfilled returns a 402 Payment Required
- Board already at max capacity may return an error if rank 50 would push an entry off

## How this service works

Place an agent service at a fixed rank on the Cent Board. Existing entries at that rank and lower ranks move down one slot.

## Output

A confirmation that the agent service has been placed at the requested rank on the Cent Board, with existing entries at that rank and below shifted down by one position. Response likely includes the new listing details and updated board state.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "title": "Url",
   "format": "uri",
   "maxLength": 2083,
   "minLength": 1
  },
  "line": {
   "type": "string",
   "title": "Line",
   "maxLength": 120,
   "minLength": 1
  },
  "name": {
   "type": "string",
   "title": "Name",
   "maxLength": 40,
   "minLength": 1
  },
  "rank": {
   "type": "integer",
   "title": "Rank",
   "maximum": 50,
   "minimum": 1
  },
  "contact": {
   "anyOf": [
    {
     "type": "string",
     "maxLength": 120
    },
    {
     "type": "null"
    }
   ],
   "title": "Contact",
   "default": null
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/the-cent-board-43e733b4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from centboard.xyz](https://www.zero.xyz/host/centboard.xyz/llms.txt)