0xMacro

• Name: 0xMacro
• URL: https://0xmacro.com/
• Category: smart-contract security / public audit-library infrastructure / security education and developer tooling / web3 engineering services
• Tags: ethereum-ecosystem solana-ecosystem
• Summary: 0xMacro is a smaller tooling-heavy security shop. Keep it for the audit library, Solana-security curation, and Trim. Useful note, not a security anchor.
• What it does:
  • Performs smart-contract and Solana-program audits for crypto protocols and adjacent web3 products
  • Offers early-stage architecture review, protocol-design consultation, gas-optimization audits, and stablecoin protocol development
  • Maintains a public audit library that publishes a long stream of named engagements, issue counts, short scope descriptions, and dates
  • Publishes open developer/security resources including the 0xMacro Library site, an awesome-solana-security repository, and the Trim opcode-oriented EVM language
  • Positions itself as a small, expert-heavy, relationship-oriented firm rather than as a scaled audit marketplace
• Key claims:
  • The official homepage frames Macro around “Blockchain Auditing & Development” and lists services including smart-contract and Solana-program audits, architecture review, stablecoin protocol development, and gas optimization work
  • The homepage’s “Why Macro?” section says the firm deliberately stays small, prioritizes audit quality over scale, and specializes in recurring long-term client relationships
  • The official works/library surface shows a steady stream of public and private engagements, which makes the audit library a real first-party artifact instead of decorative case-study copy
  • The public GitHub organization matters because the retrievable surface is not just PDFs: it includes the library repo, an awesome-solana-security curation repo, and Trim, described as “An opcode-oriented language that compiles to the EVM”
  • The Solana-security curation work is a useful tell. 0xMacro is not just selling reviews; it is also packaging reusable learning and tooling artifacts
  • Taken together, the current primary-source corpus says 0xMacro is a tooling-heavy boutique firm, not a category-defining security platform
• Whitepaper: No canonical 0xMacro whitepaper or litepaper surfaced in this pass. The clearest current sources of truth are the official site, the public audit/work library, the GitHub organization, and first-party repos such as library, awesome-solana-security, and trim; see ../whitepapers/0xmacro-primary-sources-2026-04-28.md.
• Sources:
  • https://0xmacro.com/
  • https://0xmacro.com/works
  • https://github.com/0xMacro
  • https://raw.githubusercontent.com/0xMacro/library/master/README.md
  • https://raw.githubusercontent.com/0xMacro/awesome-solana-security/master/README.md
  • https://raw.githubusercontent.com/0xMacro/trim/master/README.md

Internal linkages

• Best upward reads: trail-of-bits and ottersec.
• Keep this note on the public artifact trail and Solana-heavy tooling, not on generic audit-firm peer spray.

Control / trust posture

• The useful control surface is narrow and concrete: who reviews the code, what gets published into the library, and which tooling or educational artifacts become part of the firm’s durable footprint.

• That is enough to keep the note, but not enough to pretend Macro is a category center.

• Last reviewed: 2026-06-04 UTC