0xMacro

• Name: 0xMacro
• URL: https://0xmacro.com/
• Category: smart-contract security company / audit-library and security-education operator / developer-tooling steward
• Tags: ethereum-ecosystem solana-ecosystem
• Summary: 0xMacro belongs as an entity note, not a protocol note. The useful cut is that a named security company packages audits, a public works library, Solana-security curation, and first-party developer tooling under one operating shell. The practical leverage is not only in one report; it sits in who curates the audit corpus, which reusable security resources stay maintained, and how much downstream engineering workflow starts depending on 0xMacro-authored learning and tooling.
• What it does:
  • Performs smart-contract and Solana-program audits for crypto protocols and adjacent web3 products
  • Offers architecture review, protocol-design consultation, gas-optimization audits, and stablecoin-protocol development services
  • Maintains a public works library that publishes named engagements, issue counts, scope snippets, and dates as a durable first-party report surface
  • Publishes open security and developer resources including the 0xMacro Library site, the awesome-solana-security repository, and Trim, an opcode-oriented language that compiles to the EVM
  • Positions itself as a deliberately small, expert-heavy security shop where long-term client relationships and public artifact quality matter more than pure audit throughput
• Key claims:
  • The official homepage frames Macro around Blockchain Auditing & Development and lists smart-contract audits, 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 rather than decorative case-study copy
  • The public GitHub organization exposes the library repo, an awesome-solana-security curation repo, and Trim, which is described as An opcode-oriented language that compiles to the EVM
  • The Solana-security curation work is a useful tell that 0xMacro is not just selling reviews; it is also packaging reusable ecosystem learning material and tooling
  • Taken together, the current primary-source corpus says 0xMacro is better analyzed as a tooling-heavy boutique security company than as a standalone project or protocol
• Whitepaper: No canonical 0xMacro whitepaper or litepaper surfaced in this pass. The strongest current sources of truth remain the official site, the public works/library surface, 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

Why this company note belongs in the corpus

• There is no especially useful standalone 0xMacro protocol boundary doing analytical work here.
• The organization itself is the control surface: audit scoping, report-publication habits, the public library, security curation, and maintained tooling all live under one named operator.
• That makes 0xMacro a cleaner fit for companies/ than projects/, because the practical question is who shapes review artifacts and reusable learning infrastructure, not which neutral product primitive exists independently of the firm.

Internal linkages

• Project-layer alias: 0xmacro.
• Best adjacent company reads: trail-of-bits, ottersec, and coinfabrik.
• Useful contrast where the tooling side becomes much more formal-methods-heavy: certora.

Protocol / company boundary

• 0xMacro does publish reusable artifacts, but those artifacts do not add up to a separate protocol boundary that matters more than the company operating them.
• The useful surface is the company-run mix of security reviews, public library curation, Solana-security education, and maintained tooling.
• That is why the canonical note lives in companies/: the sticky dependency is on a named audit-and-tooling operator, not on a neutral lower-layer primitive.

Control surface

• Practical leverage sits in which findings get published, which issues and lessons are normalized through the public library, which ecosystem learning resources stay maintained, and whether teams begin to treat 0xMacro-authored guidance or tooling as part of their standard review workflow.

• The company does not directly control protected protocols, but it can still shape what downstream teams notice, how they review code, and which security habits get reinforced.

• Read 0xMacro as a security-and-tooling company first, not as an independent protocol.

• Last reviewed: 2026-08-09 UTC