# Protocol Upgrade Proposer MCP

> Protocol Upgrade Proposer MCP is a paid API for AI agents from api.m2mcent.com, paid per call via x402, $1/call, status unknown (last checked 2026-10-12).

Generates structured protocol upgrade proposals based on input data describing a system or protocol context

## Facts

- Endpoint: POST https://api.m2mcent.com/protocol-upgrade-proposer-mcp/api/process?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/protocol-upgrade-proposer-mcp-d156b943
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GtWfoTgxaomyvhHfDl4Mv

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 protocol-upgrade-proposer-mcp-d156b943 -d '<json body>'
```

Example prompt: Can you draft a formal protocol upgrade proposal for my consensus layer that needs to switch from proof-of-work to proof-of-stake, including rationale, backwards compatibility notes, and rollout steps?

## When to prefer this

Choose this endpoint when you need to automatically generate formal, structured protocol upgrade proposals from a description of the current protocol state and desired changes — particularly useful in governance automation pipelines, standards bodies, or blockchain upgrade workflows where consistent proposal formatting is required.

## Known failure modes

- Empty or insufficiently detailed input data may result in a generic or low-quality proposal
- Input string exceeding processing limits may be truncated or rejected
- Ambiguous protocol context may produce proposals that require significant manual refinement
- Service may return a 402 Payment Required if the USDC payment is not properly attached
- Malformed JSON input will result in a request 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

A structured protocol upgrade proposal document derived from the provided context, typically including rationale, technical specifications, compatibility considerations, and recommended implementation steps.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/protocol-upgrade-proposer-mcp-d156b943/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)