# Blockscout Chain Indexing Status

> Blockscout Chain Indexing Status is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-11).

Returns the current indexing status of a specific blockchain on Blockscout, including whether block and internal transaction indexing is complete and the indexed blocks ratio.

## Facts

- Endpoint: GET https://api.blockscout.com/%7Bchain_id%7D/api/v2/main-page/indexing-status
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blockscout-chain-indexing-status-2385a613
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xlcb1uQu8T7Fgo0n2CDds

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 blockscout-chain-indexing-status-2385a613
```

Example prompt: Check the indexing status for Ethereum on Blockscout — I want to know if block indexing is finished and what percentage of blocks have been indexed.

## When to prefer this

Use this endpoint when you need to verify whether a specific blockchain's data on Blockscout is fully indexed before querying transactions, addresses, or tokens — especially useful to avoid incomplete results in newly added or re-syncing chains. Prefer this over general blockchain node status checks when you are specifically working within the Blockscout ecosystem.

## Known failure modes

- Invalid or unsupported chain_id returns a 404 or error response
- Chain not yet onboarded to Blockscout returns empty or error
- Network timeout if Blockscout infrastructure is temporarily unavailable
- Ratio values may show 0 even when indexing is in early stages, which can be misleading

## How this service works

Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data

## Output

Returns a JSON object with four fields: finished_indexing (boolean, true if full indexing is complete), indexed_blocks_ratio (number 0–1 representing fraction of blocks indexed), finished_indexing_blocks (boolean, true if all blocks are indexed), and indexed_internal_transactions_ratio (number 0–1 for internal transaction indexing progress).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "properties": {
      "chain_id": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "finished_indexing": true,
  "indexed_blocks_ratio": 0,
  "finished_indexing_blocks": true,
  "indexed_internal_transactions_ratio": 0
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blockscout-chain-indexing-status-2385a613/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.blockscout.com](https://www.zero.xyz/host/api.blockscout.com/llms.txt)