# Tax Loss Harvesting MCP

> Tax Loss Harvesting MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $0.18/call, status unknown (last checked 2026-10-12).

Processes tax-loss harvesting analysis and recommendations for investment portfolios via a machine-callable endpoint.

## Facts

- Endpoint: POST https://api.m2mcent.com/tax-loss-harvesting-mcp/api/process?utm_source=zero.xyz
- Price: $0.18/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tax-loss-harvesting-mcp-580d4a9e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4cD1BQC9p1F8WVc7gbcoU

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 tax-loss-harvesting-mcp-580d4a9e -d '<json body>'
```

Example prompt: Can you run tax-loss harvesting analysis on my portfolio? Here's my holdings data: [portfolio JSON with positions, cost basis, and current values] — I want to see which positions I should sell to offset my capital gains this year.

## When to prefer this

Choose this endpoint when you need automated, machine-callable tax-loss harvesting analysis as part of an agentic workflow — particularly for portfolio management agents that need to periodically scan holdings for tax optimization opportunities without human-in-the-loop intervention. Best suited for agents handling investment portfolio data that need structured recommendations rather than a full wealth management platform.

## Known failure modes

- Malformed or missing portfolio data in the 'data' field returns a validation error
- Insufficient holdings data to perform meaningful analysis may return empty recommendations
- Ambiguous cost basis information may lead to inaccurate loss calculations
- Rate limiting or payment failure (402) if USDC payment is not properly attached
- Wash-sale rule edge cases may not be fully accounted for depending on implementation

## 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 tax-loss harvesting analysis including identification of positions with unrealized losses, estimated harvestable loss amounts, potential tax savings, and possibly suggested replacement securities to maintain portfolio exposure while avoiding wash-sale violations.

## 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/tax-loss-harvesting-mcp-580d4a9e/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)