# Second Price Auction Host MCP

> Second Price Auction Host MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.3/call, status unknown (last checked 2026-09-15).

Hosts and processes second-price (Vickrey) auction logic, accepting bid data and returning auction outcomes based on second-price rules.

## Facts

- Endpoint: POST https://api.m2mcent.com/second-price-auction-host-mcp/api/process
- Price: $0.3/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/second-price-auction-host-mcp-6d220975
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DeSQm1ll3WvWqqpmM-Kd8

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 second-price-auction-host-mcp-6d220975 -d '<json body>'
```

Example prompt: Run a second-price auction with the following bids — Bidder A: $50, Bidder B: $75, Bidder C: $60 — and tell me who wins and what price they pay.

## When to prefer this

Use this endpoint when you need to automate the settlement of a second-price (Vickrey) sealed-bid auction, particularly in multi-agent or programmatic bidding environments where fairness and incentive-compatibility of the pricing mechanism matter. Prefer over custom logic when you want a hosted, stateless auction evaluation service.

## Known failure modes

- Malformed or missing bid data returns an error
- Fewer than two valid bids provided may cause undefined auction behavior
- Non-numeric bid values cause processing failure
- Tied bids may produce ambiguous winner determination
- Timeout if data payload is too large

## How this service works

The premier global index of 1,069 monetized MCP nodes across 205 specialized subdomains. Gasless USDC runtime settlements via x402 V2 Spec on Base L2. Save 95% token context.

## Output

Returns the auction outcome including the winning bidder, the winning bid amount, and the clearing price (i.e. the second-highest bid) that the winner must pay, based on Vickrey/second-price auction rules.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "payload": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/second-price-auction-host-mcp-6d220975/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.m2mcent.com](https://www.zero.xyz/host/api.m2mcent.com/llms.txt)