Cline (harness) alternatives
OSS VS Code extension that runs as a fully agentic coding assistant — plan/act modes, file ops, shell exec, browser-use, MCP. Originally "Claude Dev" (2024); rebranded Cline 2024-Q4. Multi-model: Anthropic, OpenAI, OpenRouter, Bedrock, Vertex. Full Cline (harness) record →
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also in Agent IDEs & coding harnesses · same storage (file) · same retrieval (injection) · same conflict handling (human-arbitrate) · same memory unit (document) · also open source · also self-hostable
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 89k released 2026-08-12 GPL-3.0-or-later (primary), with Apache-2.0… Compare with Cline (harness) →
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also in Agent IDEs & coding harnesses · same storage (file) · same retrieval (injection) · same conflict handling (human-arbitrate) · same memory unit (document) · also open source · also self-hostable
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 222k released 2026-10-22 MIT Compare with Cline (harness) →
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also in Agent IDEs & coding harnesses · same storage (file) · same retrieval (injection) · same conflict handling (human-arbitrate) · same memory unit (document) · also open source · also self-hostable
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 56k released 2026-10-23 Apache-2.0 Compare with Cline (harness) →
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also in Agent IDEs & coding harnesses · same storage (file) · same retrieval (injection) · same conflict handling (human-arbitrate) · same memory unit (document) · also self-hostable · also offered managed
OSS — Self-host ✓ Managed ✓ MCP ✓ ★ 153k released 2026-10-23 proprietary — © Anthropic PBC, use subject to… Compare with Cline (harness) →
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also in Agent IDEs & coding harnesses · same storage (file) · same retrieval (injection) · same conflict handling (human-arbitrate) · same memory unit (document) · also open source · also self-hostable
OSS ✓ Self-host ✓ Managed ✓ MCP ✓ ★ 28k released 2026-08-31 FSL-1.1-MIT (source-available; converts to MIT… Compare with Cline (harness) →
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also in Agent IDEs & coding harnesses · same storage (file) · same retrieval (injection) · same conflict handling (human-arbitrate) · same memory unit (document) · also open source · also self-hostable
OSS ✓ Self-host ✓ Managed ✓ MCP — ★ 50k released 2026-02-12 Apache-2.0 Compare with Cline (harness) →
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also in Agent IDEs & coding harnesses · same storage (file) · same retrieval (injection) · same conflict handling (human-arbitrate) · same memory unit (document) · also self-hostable · also offered managed
OSS ? Self-host ✓ Managed ✓ MCP ✓ released 2026-10-22 Compare with Cline (harness) →
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also in Agent IDEs & coding harnesses · same storage (file) · same retrieval (injection) · same conflict handling (human-arbitrate) · same memory unit (document) · also offered managed · also has MCP
OSS ? Self-host — Managed ✓ MCP ✓ Compare with Cline (harness) →
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.