# Second Price Auctioneer MCP

> Second Price Auctioneer MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).

Runs a second-price (Vickrey) auction over submitted bids and returns the winner and clearing price

## Facts

- Endpoint: POST https://api.m2mcent.com/second-price-auctioneer-mcp/api/process
- Price: $0.15/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-auctioneer-mcp-f949f4f7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_t0CrVlZvmWRCbommA3hWA

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-auctioneer-mcp-f949f4f7 -d '<json body>'
```

Example prompt: I have three bids for my compute slot — Alice bid $12, Bob bid $18, and Carol bid $15 — can you run a second-price auction and tell me who wins and what they actually pay?

## When to prefer this

Use this endpoint when you need to programmatically resolve a sealed-bid second-price (Vickrey) auction — especially in agent-to-agent resource allocation, ad auctions, or any multi-agent bidding scenario where the winner pays the second-highest price rather than their own bid. Prefer this over manual computation when bid counts are large or when auctions need to be settled automatically in a pipeline.

## Known failure modes

- Missing or malformed bid data returns a validation error
- Fewer than two bids provided may result in an error or trivial result with no meaningful second price
- Non-numeric bid values cause parsing failures
- Empty data field returns an error indicating missing input

## 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 identity of the winning bidder, their submitted bid amount, and the second-highest bid price (the actual amount the winner pays), along with any relevant auction metadata such as all ranked bids.

## 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-auctioneer-mcp-f949f4f7/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)