---
title: "Query summary of blockchain eras"
method: GET
path: "/network/eras"
tags: ["Cardano » Network"]
---

# Query summary of blockchain eras

`GET /network/eras`

Returns start and end of each era along with
parameters that can vary between hard forks.

## Response `200`

Returns era summaries content.

- object[]
  - `start` object, required — Start of the blockchain era, relative to the start of the network
    - `time` integer, required — Time in seconds relative to the start time of the network
    - `slot` integer, required — Absolute slot number
    - `epoch` integer, required — Epoch number
  - `end` object, required — End of the blockchain era, relative to the start of the network
    - `time` integer, required — Time in seconds relative to the start time of the network
    - `slot` integer, required — Absolute slot number
    - `epoch` integer, required — Epoch number
  - `parameters` object, required — Era parameters
    - `epoch_length` integer, required — Epoch length in number of slots
    - `slot_length` integer, required — Slot length in seconds
    - `safe_zone` integer, required — Zone in which it is guaranteed that no hard fork can take place

## Other responses

- `400` — Bad request
- `403` — Authentication secret is missing or invalid
- `404` — Component not found
- `418` — IP has been auto-banned for extensive sending of requests after usage limit has been reached
- `425` — Mempool is already full, not accepting new txs straight away
- `429` — Usage limit reached
- `500` — Internal Server Error

---

[API](https://skmtc.net/txpipe/apis/blockfrost-io-api-documentation.md) · [All operations](https://skmtc.net/txpipe/apis/blockfrost-io-api-documentation/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/txpipe/blockfrost-io-api-documentation/revisions/4a2f67b16876/schema)