# TraceFast Ethereum Consensus Queue History

> TraceFast Ethereum Consensus Queue History is a paid API for AI agents from mpp.tracefast.xyz, paid per call via x402, $0.025/call, status unknown (last checked 2026-10-19).

Returns the current Ethereum validator activation and exit queue sizes, plus daily closing snapshots for up to 90 recent days, newest first.

## Facts

- Endpoint: GET https://mpp.tracefast.xyz/api/v1/chains/1/consensus/queues?utm_source=zero.xyz
- Price: $0.025/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-queue-history-efd9f49f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tAFDsZXuj13xjo9Az8fae

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-queue-history-efd9f49f
```

Example prompt: What does the Ethereum validator activation and exit queue look like right now, and can you pull the daily snapshots for the last 60 days so I can see how the queue has been trending?

## When to prefer this

Choose this endpoint when you need both the live Ethereum validator queue state and a time-series of daily snapshots in a single call. It is specifically suited for trend analysis of staking demand and exit pressure over days or months. Prefer this over the sibling 'newest epoch only' endpoint when historical context or charting is needed.

## Known failure modes

- limit parameter out of range (must be 1–90): returns error
- chain ID not supported: returns error
- payment not provided or insufficient (x402 payment required): 402 response
- service unavailable or upstream indexer lag: 503 or stale data
- rate limit exceeded: 429 response

## How this service works

TraceFast live Ethereum data: the validator activation and exit queues now, plus one closing point per UTC day for the most recent `limit` days (up to 90), newest first. Query limit: Most recent daily points to return, 1..=90, default 30. Docs: https://docs.tracefast.xyz/api/consensus-queues.md

## Output

Returns the live validator activation and exit queue depths as of the most recently sampled epoch, plus one closing data point per UTC day for the requested number of recent days (up to 90), sorted newest-first. Each daily record includes the date and queue sizes at market close for that day.

## 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-queue-history-efd9f49f/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)