# Upland Appchain History & Chain API

**Canonical:** https://apis.io/apis/upland/upland-appchain-history-chain-api/  
**Provider:** Upland — https://apis.io/providers/upland/  
**Base URL:** https://chain-history.upland.me  
**Documentation:** https://docs.developers.upland.me/upland-developers/api-definitions/upland-appchain

Upland Appchain History & Chain API is one of 2 APIs that [Upland](https://apis.io/providers/upland/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Blockchain, Antelope, Web3, Metaverse, and Digital Assets. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an API reference.

Public, unauthenticated Antelope (Leap 5.0.3) node and Hyperion 3.3.10 full-history API for Upland's own appchain, which replaced Upland's EOS deployment on 2025-04-26. Exposes the standard Antelope /v1/chain RPC (get_info, get_account, get_table_rows, get_abi, push_transaction and friends) plus Hyperion V1 and V2 history, state and stats endpoints for indexed actions, deltas, transactions, token holders, account creators, proposals and resource usage. Documented by Upland on its own Upland Appchain developer page alongside the ledger.upland.me block explorer.

## Machine-readable artifacts (4)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/upland/refs/heads/main/openapi/upland-appchain-history-swagger.json
- **Documentation** — https://docs.developers.upland.me/upland-developers/api-definitions/upland-appchain
- **APIReference** — https://chain-history.upland.me/v2/docs/
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/upland/refs/heads/main/overlays/upland-appchain-history-overlay.yaml

## Other Upland APIs (1)

- [Upland Developers API](https://apis.io/apis/upland/upland-developers-api/)

## Tags

Blockchain, Antelope, Web3, Metaverse, Digital Assets

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/upland/upland-appchain-history-chain-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/upland/.