Seer

Developer Tools

Advanced Solana transaction debugger — source-mapped traces, CPI trees, account diffs, opcodes/registers for test and simulated txs (seer.run).

Website @seer_sh

debuggingtestingsolanacpitooling

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More orgs

Infrastructure

Tinydancer

Tinydancer is an open-source light client implementation for the Solana blockchain.

Payments

Sphere Labs

SpherePay: Solana-native stablecoin payments API for businesses. Fiat rails (ACH, wire, SEPA, PIX) to USDC/USDT/EURC; Onramper virtual accounts and Offloader wallets. Powers solana.com/solanaramp. Covered in our Sphere Labs deep dive.

Open-source columnar OLAP database widely used for Solana analytics and historical ledger query layers (e.g. CryptoHouse, Triton Superbank). High insert rates, compression, analytical SQL over large event tables.