# Uniblock JSON-RPC API

**Canonical:** https://apis.io/apis/uniblock/json-rpc-api/  
**Provider:** Uniblock — https://apis.io/providers/uniblock/  
**Base URL:** https://api.uniblock.dev  
**Documentation:** https://docs.uniblock.dev/reference/unified-api-reference-overview

Uniblock JSON-RPC API is one of 7 APIs that [Uniblock](https://apis.io/providers/uniblock/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Blockchain, EVM, JSON-RPC, Nodes, and Web3. The published artifact set on APIs.io includes API documentation and an OpenAPI specification.

The Uniblock JSON-RPC API provides a single endpoint for standard JSON-RPC calls across hundreds of blockchain networks. Rather than managing individual node provider connections for each chain, developers can send JSON-RPC requests through Uniblock which automatically selects the best upstream node provider. This supports standard Ethereum and EVM-compatible JSON-RPC methods, as well as Solana and other chain-specific RPC interfaces, with built-in failover and automatic retries.

## Machine-readable artifacts (3)

- **Documentation** — https://docs.uniblock.dev/reference/unified-api-reference-overview
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/uniblock/refs/heads/main/openapi/uniblock-json-rpc-api-openapi.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/uniblock/refs/heads/main/apis.yml

## Other Uniblock APIs (6)

- [Uniblock Direct Pass-Through API](https://apis.io/apis/uniblock/uniblock-direct-pass-through-api/)
- [Uniblock Market Data API](https://apis.io/apis/uniblock/uniblock-market-data-api/)
- [Uniblock NFTs API](https://apis.io/apis/uniblock/uniblock-nfts-api/)
- [Uniblock Scan API](https://apis.io/apis/uniblock/uniblock-scan-api/)
- [Uniblock Tokens API](https://apis.io/apis/uniblock/uniblock-tokens-api/)
- [Uniblock Transactions API](https://apis.io/apis/uniblock/uniblock-transactions-api/)

## Tags

Blockchain, EVM, JSON-RPC, Nodes, Web3

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