# Fireblocks Onchain Data API

**Canonical:** https://apis.io/apis/fireblocks/fireblocks-onchain-data-api/  
**Provider:** Fireblocks — https://apis.io/providers/fireblocks/  
**Base URL:** https://api.fireblocks.io/v1  
**Documentation:** https://developers.fireblocks.com/reference/api-overview

Fireblocks Onchain Data API is one of 62 APIs that [Fireblocks](https://apis.io/providers/fireblocks/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include On-Chain Data. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and a JSON-LD context.

The Onchain Data API from Fireblocks — 8 operation(s) for onchain data.

## Operations (8)

| Method | Path | Summary |
|---|---|---|
| GET | `/onchain_data/base_asset_id/{baseAssetId}/access_registry_address/{accessRegistryAddress}/list` | Get the current state of addresses in an access registry |
| GET | `/onchain_data/base_asset_id/{baseAssetId}/access_registry_address/{accessRegistryAddress}/summary` | Summary of access registry state |
| GET | `/onchain_data/base_asset_id/{baseAssetId}/contract_address/{contractAddress}/account_address/{accountAddress}/balance_history` | Get historical balance data for a specific account in a contract |
| GET | `/onchain_data/base_asset_id/{baseAssetId}/contract_address/{contractAddress}/balances` | Get latest balances for all addresses holding tokens from a contract |
| GET | `/onchain_data/base_asset_id/{baseAssetId}/contract_address/{contractAddress}/roles` | List of active roles for a given contract address and base asset ID |
| GET | `/onchain_data/base_asset_id/{baseAssetId}/contract_address/{contractAddress}/summary` | Get summary for the token contract |
| GET | `/onchain_data/base_asset_id/{baseAssetId}/contract_address/{contractAddress}/total_supply` | Get historical total supply data for a contract |
| GET | `/onchain_data/base_asset_id/{baseAssetId}/contract_address/{contractAddress}/transactions` | Fetch onchain transactions for a contract |

## Machine-readable artifacts (3)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/fireblocks/refs/heads/main/openapi/fireblocks-onchain-data-api-openapi.yml
- **Documentation** — https://developers.fireblocks.com/reference/api-overview
- **JSONLD** — https://raw.githubusercontent.com/api-evangelist/fireblocks/refs/heads/main/json-ld/fireblocks-context.jsonld

## Other Fireblocks APIs (12)

- [Fireblocks Vaults API](https://apis.io/apis/fireblocks/fireblocks-vaults-api/)
- [Fireblocks Transactions API](https://apis.io/apis/fireblocks/fireblocks-transactions-api/)
- [Fireblocks Tokenization API](https://apis.io/apis/fireblocks/fireblocks-tokenization-api/)
- [Fireblocks Staking API](https://apis.io/apis/fireblocks/fireblocks-staking-api/)
- [Fireblocks NFTs API](https://apis.io/apis/fireblocks/fireblocks-nfts-api/)
- [Fireblocks Compliance and Policy API](https://apis.io/apis/fireblocks/fireblocks-compliance-api/)
- [Fireblocks Webhooks API](https://apis.io/apis/fireblocks/fireblocks-webhooks-api/)
- [fireblocks Approval Requests API](https://apis.io/apis/fireblocks/fireblocks-approval-requests-api/)
- [fireblocks Blockchains & Assets API](https://apis.io/apis/fireblocks/fireblocks-blockchains-assets-api/)
- [fireblocks Contract Interactions API](https://apis.io/apis/fireblocks/fireblocks-contract-interactions-api/)
- [fireblocks Contract Templates API](https://apis.io/apis/fireblocks/fireblocks-contract-templates-api/)
- [fireblocks Cosigners (Beta) API](https://apis.io/apis/fireblocks/fireblocks-cosigners-beta-api/)

## Tags

On-Chain Data

---

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