Galileo (galileo.ai) (now Splunk Agent Observability) alternatives
Acquired by Cisco (announced 2026-04-09, closed by 2026-05); now Splunk Agent Observability. Treats memory as first-class in multi-agent tracing. Luna-2 SLMs (3B / 8B) scan every interaction for intent drift and belief drift; 20+ checks at sub-200ms latency. Full Galileo (galileo.ai) (now Splunk Agent Observability) record →
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same storage (vector) · same retrieval (similarity) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP
OSS — Self-host ✓ Managed ✓ MCP ✓ ★ 208k released 2026-10-19 Sustainable Use License + n8n Enterprise… Compare with Galileo (galileo.ai) (now Splunk Agent Observability) →
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same storage (vector) · same retrieval (similarity) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 67k released 2026-09-25 Apache-2.0 Compare with Galileo (galileo.ai) (now Splunk Agent Observability) →
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same storage (vector) · same retrieval (similarity) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 45k released 2026-10-21 MIT Compare with Galileo (galileo.ai) (now Splunk Agent Observability) →
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same storage (vector) · same retrieval (similarity) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 15k MIT (SDK/integration packages in… Compare with Galileo (galileo.ai) (now Splunk Agent Observability) →
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same storage (vector) · same retrieval (similarity) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 13k released 2026-10-22 MIT Compare with Galileo (galileo.ai) (now Splunk Agent Observability) →
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same storage (vector) · same retrieval (similarity) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 3.7k released 2026-10-29 Apache-2.0 Compare with Galileo (galileo.ai) (now Splunk Agent Observability) →
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same storage (vector) · same retrieval (similarity) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 51k released 2026-10-14 MIT Compare with Galileo (galileo.ai) (now Splunk Agent Observability) →
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same storage (vector) · same retrieval (similarity) · same memory unit (episode) · also self-hostable · also offered managed · also has MCP
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 43k released 2026-10-21 Apache-2.0 Compare with Galileo (galileo.ai) (now Splunk Agent Observability) →
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.