# Cross-Device Attribution MCP

> Cross-Device Attribution MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-16).

Processes cross-device attribution data to identify and link user journeys across multiple devices and touchpoints

## Facts

- Endpoint: POST https://api.m2mcent.com/cross-device-attribution-mcp/api/process?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cross-device-attribution-mcp-27aeb57c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QsTRkdEPiO8JddtUa5orF

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 cross-device-attribution-mcp-27aeb57c -d '<json body>'
```

Example prompt: Can you run cross-device attribution on this user journey data to figure out which devices contributed to the conversion — here's the raw event data string I want processed.

## When to prefer this

Use this endpoint when you need to resolve cross-device user journeys and attribute conversions across multiple screens or browsers, especially in marketing analytics or ad measurement workflows where device-level identity resolution is required.

## Known failure modes

- Malformed or empty data string returns a 400 validation error
- Ambiguous or incomplete event data may result in low-confidence attribution output
- Service unavailable or timeout if upstream attribution engine is unreachable
- Payment failure (402) if USDC balance is insufficient before processing begins

## 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 processed cross-device attribution results including device linkages, attribution weights, and conversion path data derived from the submitted raw data string.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cross-device-attribution-mcp-27aeb57c/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)