# Header Bidding Wrapper MCP

> Header Bidding Wrapper MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.15/call, status unknown (last checked 2026-10-12).

Processes header bidding wrapper data for programmatic advertising auctions via an agentic MCP endpoint.

## Facts

- Endpoint: POST https://api.m2mcent.com/header-bidding-wrapper-mcp/api/process?utm_source=zero.xyz
- Price: $0.15/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/header-bidding-wrapper-mcp-e2d3d5e1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_El1eFXMJJ_g15eo5e1nxz

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 header-bidding-wrapper-mcp-e2d3d5e1 -d '<json body>'
```

Example prompt: Process this header bidding wrapper payload and return the auction results — here's the bid data string from my SSP partners: '{"slots":[{"id":"top-banner","sizes":[[728,90]],"bids":[{"bidder":"appnexus","params":{"placementId":12345}}]}]}'.

## When to prefer this

Choose this endpoint when you need to process header bidding wrapper payloads as part of a programmatic advertising workflow, especially when integrating multiple demand-side partners or SSPs in a Prebid-style auction setup. It is appropriate for agentic pipelines that require real-time bid aggregation and evaluation at the ad slot level.

## Known failure modes

- Malformed or empty data string returns a parsing error
- Invalid bid structure causes auction processing failure
- Payment of 0.15 USDC not authorized results in 402 rejection
- Downstream SSP or demand partner timeout causes incomplete results
- Unsupported wrapper format leads to unprocessable entity error

## 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 a processed response from the header bidding wrapper, including auction outcomes, winning bid details, and aggregated bid data from demand partners.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/header-bidding-wrapper-mcp-e2d3d5e1/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)