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Beaconchain · Excel Guide

Fetch Attestation Efficiency Scores Into a Excel

2026-05-14
5 min read

The Scenario

You run a staking-as-a-service operation with 200 client validators. End of month, you have an SLA report to produce. One of the key metrics is attestation effectiveness — and you've had three clients push back in the last quarter because their dashboards showed poor scores that you couldn't explain because you didn't catch them early enough. This month you want the snapshot before the report, not after.

The bad version:

  • Export an attestation data CSV from beaconcha.in for validator 1, import into Excel, extract the effectiveness column, paste into the SLA workbook
  • Work through the remaining 199 validators one at a time, knowing that a single mis-imported CSV means a client's score lands in the wrong row
  • Build the color scale manually after the data is in, then re-check that the scale anchors are set correctly after you realize the min/max shifted from last month

You can't send an SLA report with a data entry error in it. Re-checking 200 rows is not a QA process — it's a gamble.

The Easy Way: One Prompt in SheetXAI

SheetXAI is an AI agent that lives inside your Excel workbook. It reads your 200 validator indices from column A, calls the Beaconchain attestation effectiveness endpoint for each one, and writes the results back without any manual lookup or import operation.

Pull attestation effectiveness for the 200 validator indices in my Excel column A from Beaconcha.in and write each validator's index and effectiveness score into columns B and C, then add a conditional color scale

What You Get

  • Column B: validator index (echoed from column A for cross-reference)
  • Column C: attestation efficiency score as a percentage
  • Column D: validator status (active, slashed, exiting, etc.)
  • Conditional formatting color scale applied to column C automatically
  • Any index that returns a missing or error response gets a flag in column D so you can investigate before the SLA report goes out

What If the Data Is Not Quite Ready

Some validators are in an exiting or pending state and shouldn't count toward the SLA calculation

Fetch Beaconchain attestation efficiency for validators in column A of my Excel table — write index, efficiency score, and status to columns B through D — then mark any row where status is not active with an EXCLUDE flag in column E so the SLA formula can ignore those rows

You need to compare this month's scores against last month's snapshot already in column F

Pull Beaconchain attestation efficiency for validators in column A of my Excel table and write the current efficiency score to column C — then add a Delta column in column G showing the change from the previous score in column F, formatted as a signed number

Pull the snapshot, flag underperformers, and draft a client alert list in one step

Fetch Beaconchain attestation efficiency for validators in column A of my Excel table — write index, score, and status to columns B, C, D — then create a new worksheet called Alert List containing only the rows where efficiency is below 95%, sorted by score ascending, with validator index and score columns

Build the complete monthly SLA package: effectiveness scores, delta from last month, alert list, and summary statistics

Fetch Beaconchain attestation efficiency for validators in column A — write scores to column C, deltas vs column F to column G — create an Alert List worksheet for sub-95% validators — add a Summary worksheet with average effectiveness, count of underperformers, and range statistics

Combining the data pull with the conditional filter means you get the full SLA package immediately, not after a second round of manual sorting.

Try It

Get the 7-day free trial of SheetXAI and open the SLA tracking workbook with your 200 validator indices in column A, then ask SheetXAI to pull the attestation effectiveness snapshot. The spoke on reward summaries is also useful for SLA reporting, and the hub page has the full list of Beaconchain workflows.

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