# TraceFast Ethereum Consensus Proposers

> TraceFast Ethereum Consensus Proposers is a paid API for AI agents from mpp.tracefast.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-19).

Returns a ranked list of Ethereum consensus layer block proposers — either by individual validator or grouped by withdrawal address — over a configurable time window.

## Facts

- Endpoint: GET https://mpp.tracefast.xyz/api/v1/chains/1/consensus/proposers?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tracefast-ethereum-consensus-proposers-fe713f25
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BSY7jmA4b0BXd5wTotXXV

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 tracefast-ethereum-consensus-proposers-fe713f25
```

Example prompt: Show me the top 20 Ethereum validators by blocks proposed over the last 30 days, grouped by validator, using TraceFast.

## When to prefer this

Use this endpoint when you need to rank or compare Ethereum consensus layer validators or staking operators by block production volume over a defined historical window. It is the right choice when you want leaderboard-style analytics on proposer activity, especially when grouping payouts by withdrawal address to analyze staking operator revenue. Prefer it over transaction-level endpoints when the question is about consensus layer validator performance rather than execution layer activity.

## Known failure modes

- Invalid period value (not one of 7d, 30d, 90d, 1y, all) returns a 400 error
- Limit out of range (below 1 or above 100) returns a 400 error
- Payment not attached or insufficient USDC triggers a 402 Payment Required response
- Network or upstream Ethereum node unavailability may return a 503
- Invalid groupBy value returns a 400 error

## How this service works

TraceFast live Ethereum data: which validators proposed the most blocks over a window, or — grouped by withdrawal address — which payout addresses their proposals sum to. Query period: `7d` (default), `30d`, `90d`, `1y` or `all`; groupBy: `validator` (default) or `address`; limit: Rows to return, 1..=100, default 20. Docs: https://docs.tracefast.xyz/api/consensus-proposers.md

## Output

A ranked list of rows — up to the requested limit — each containing either a validator index or withdrawal address along with their aggregated block proposal count over the specified window. Results are ordered descending by proposal count.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tracefast-ethereum-consensus-proposers-fe713f25/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mpp.tracefast.xyz](https://www.zero.xyz/host/mpp.tracefast.xyz/llms.txt)