Calypso AI (now F5 AI Guardrails) alternatives

⚠ Calypso AI (now F5 AI Guardrails) is acquired — acquired by F5; now F5 AI Guardrails. These are live systems that cover the same ground.

Dublin / NYC founded 2018; GenAI security and content scanning. $23M Series A-1 Aug-2024 (Paladin Capital + Lockheed Martin Ventures). Pivoted from defence ML to enterprise GenAI guardrails 2023-24. Full Calypso AI (now F5 AI Guardrails) record →

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

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

   OSS — Self-host ✓ Managed ✓ MCP ? ★ 15k The AI Scientist Source Code License v1.0… Compare with Calypso AI (now F5 AI Guardrails) →

2. 2 11x.ai Use-case-specific agent harnesses

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

   OSS ? Self-host — Managed ✓ MCP ? Compare with Calypso AI (now F5 AI Guardrails) →

3. 3 Datadog Bits AI Use-case-specific agent harnesses

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

   OSS ? Self-host — Managed ✓ MCP ✓ Compare with Calypso AI (now F5 AI Guardrails) →

4. 4 Drata Use-case-specific agent harnesses

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

   OSS ? Self-host — Managed ✓ MCP ? Compare with Calypso AI (now F5 AI Guardrails) →

5. 5 Dynatrace Davis CoPilot (now Dynatrace Assist) Use-case-specific agent harnesses ⚠ renamed — now Dynatrace Assist

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

   OSS ? Self-host ? Managed ? MCP ✓ Compare with Calypso AI (now F5 AI Guardrails) →

6. 6 HubSpot Breeze AI Agents Use-case-specific agent harnesses

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

   OSS ? Self-host ? Managed ? MCP ✓ Compare with Calypso AI (now F5 AI Guardrails) →

7. 7 OpenAI Deep Research Use-case-specific agent harnesses

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

   OSS ? Self-host ? Managed ? MCP ✓ Compare with Calypso AI (now F5 AI Guardrails) →

8. 8 PagerDuty AIOps Use-case-specific agent harnesses

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

   OSS ? Self-host ? Managed ? MCP ✓ Compare with Calypso AI (now F5 AI Guardrails) →

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.