Best Observability & Infra (2026)

L

LayerZero

Open source Open Source

Omnichain interoperability protocol for cross-chain messaging and dApps.

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A

Axelar

Open source Open Source

Decentralised cross-chain communication network for Web3 applications.

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W

Wormhole

Open source Open Source

Generic cross-chain messaging protocol connecting 20+ blockchains.

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P

Polkadot SDK

Open source Open Source

Framework for building custom blockchains and parachains on Polkadot.

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C

Cosmos SDK

Open source Open Source

Framework for building sovereign application-specific blockchains.

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S

Substrate

Open source Open Source

Blockchain development framework for building customised chains quickly.

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H

Hyperledger Fabric

Open source Open Source

Enterprise permissioned blockchain framework for business networks.

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C

Corda

Open source Open Source

Open-source blockchain platform designed for enterprise financial applications.

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N

NEAR SDK

Open source Open Source

SDK for building decentralised apps and smart contracts on NEAR Protocol.

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A

Aptos SDK

Open source Open Source

SDK for developing on Aptos — a high-performance Move-based blockchain.

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S

Sui SDK

Open source Open Source

SDK for building applications on Sui — parallel-execution blockchain.

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S

StarkNet SDK

Open source Open Source

SDK for building on StarkNet — Ethereum L2 using ZK-STARK proofs.

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Z

zkSync SDK

Open source Open Source

SDK for zkSync Era — Ethereum L2 with EVM-compatible ZK rollups.

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O

Optimism SDK

Open source Open Source

SDK for building on Optimism — Ethereum L2 with OP Stack.

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B

Base SDK

Open source Open Source

SDK for Coinbase L2 chain Base — built on OP Stack.

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E

Etherscan API

Freemium

Ethereum blockchain explorer API for transactions, tokens, and contract data.

✓ Free trial available

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D

Dune Analytics

Freemium

Query and visualise blockchain data from Ethereum, Solana, and more.

✓ Free trial available

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N

Nansen

Paid

Blockchain analytics platform with wallet labels, signals, and smart money.

✓ Free trial available

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C

Chainalysis

Paid

Blockchain intelligence platform for compliance, investigations, and risk.

✓ Free trial available

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O

OpenSea SDK

Open source Open Source

SDK for interacting with OpenSea marketplace APIs for NFT data.

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R

Reservoir

Freemium

Developer tools and APIs for building NFT applications and marketplaces.

✓ Free trial available

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Z

Zora SDK

Open source Open Source

SDK for minting, selling, and buying NFTs on the Zora network.

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M

Manifold

Freemium

Tools for creators to mint, manage, and sell NFTs on-chain independently.

✓ Free trial available

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S

Snapshot

Open source Open Source

Decentralised governance voting platform for DAOs using off-chain signatures.

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T

Tally

Freemium

DAO governance platform for creating proposals and on-chain voting.

✓ Free trial available

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S

Safe

Open source Open Source

Multi-signature smart account and DAO treasury management platform.

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P

Pinax

Freemium

Blockchain data streaming and querying infrastructure for developers.

✓ Free trial available

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G

Goldsky

Freemium

Real-time blockchain data indexing and streaming pipelines for Web3.

✓ Free trial available

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C

Covalent

Freemium

Unified blockchain data API supporting 200+ chains for developers.

✓ Free trial available

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B

Bitquery

Freemium

Blockchain data APIs with SQL-like query interface for 40+ networks.

✓ Free trial available

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🏅 Best Observability & Infra