Pillar Security alternatives

Tel-Aviv-founded (Dor Sarig + Ziv Karliner, both ex-IDF cyber); end-to-end LLM security platform — discovery, red-teaming, runtime guardrails. $9M seed Apr-2024 (Shield Capital + Greenfield). Full Pillar Security record →

  1. 1 Sakana AI Scientist Use-case-specific agent harnesses

    also in Use-case-specific agent harnesses · same memory unit (turn) · also self-hostable · also offered managed

    OSS — Self-host ✓ Managed ✓ MCP ? ★ 15k The AI Scientist Source Code License v1.0… Compare with Pillar Security →

  2. 2 Garak Use-case-specific agent harnesses

    also in Use-case-specific agent harnesses · same memory unit (turn) · also self-hostable · also offered managed

    OSS ✓ Self-host ✓ Managed ✓ MCP ? ★ 9.7k released 2026-10-16 Apache-2.0 Compare with Pillar Security →

  3. 3 Lasso Security Use-case-specific agent harnesses

    also in Use-case-specific agent harnesses · same memory unit (turn) · also self-hostable · also offered managed

    OSS ? Self-host ✓ Managed ✓ MCP ? Compare with Pillar Security →

  4. 4 11x.ai Use-case-specific agent harnesses

    also in Use-case-specific agent harnesses · same memory unit (turn) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ? Compare with Pillar Security →

  5. 5 Datadog Bits AI Use-case-specific agent harnesses

    also in Use-case-specific agent harnesses · same memory unit (turn) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Pillar Security →

  6. 6 Drata Use-case-specific agent harnesses

    also in Use-case-specific agent harnesses · same memory unit (turn) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ? Compare with Pillar Security →

  7. 7 Vanta Use-case-specific agent harnesses

    also in Use-case-specific agent harnesses · same memory unit (turn) · also offered managed

    OSS ? Self-host — Managed ✓ MCP ✓ Compare with Pillar Security →

  8. 8 Specter Ops BloodHound Enterprise Use-case-specific agent harnesses

    also in Use-case-specific agent harnesses · same memory unit (turn) · also self-hostable

    OSS ✓ Self-host ✓ Managed ? MCP ? ★ 3.5k released 2026-10-26 BloodHound OSS Apache-2.0 (Enterprise is… Compare with Pillar Security →

Ranked by shared memory design (storage, retrieval, conflict handling, memory unit), same section and shared must-haves (open source, self-hosting, MCP), with adoption as a tie-breaker. ✓ confirmed · — no · ? not in the catalog yet. Want picks for your own requirements? Use the chooser. Checking a whole project? Check your stack.