Comparison
ag-ui vs mcp-agent
Verdict
Pick ag-ui if aG-UI is a protocol for integrating AI agents into frontend applications, written in TypeScript and licensed under MIT; pick mcp-agent if allows creation of efficient AI agents via Model Context Protocol with workflow patterns.
Markdown twin · ag-ui alternatives · mcp-agent alternatives
GraphCanon updated Sep 30, 2026
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Trust & integrity
| Signal | ag-ui | mcp-agent |
|---|---|---|
| Maintenance | Very active (0d since push) As of Sep 20, 2026 · github_public_v1 | Slowing (237d since push) As of Sep 20, 2026 · github_public_v1 |
| Provenance | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 | Not a fork · Organization account As of Sep 20, 2026 · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 | No lockfile (source not queried) As of Jul 11, 2026 · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- ag-ui
- Agent-User Interaction Protocol for frontend applications
- mcp-agent
- Build effective AI agents with Model Context Protocol.
Stars
- ag-ui
- 16k
- mcp-agent
- 8.5k
Forks
- ag-ui
- 1.4k
- mcp-agent
- 891
Open issues
- ag-ui
- 379
- mcp-agent
- 138
Language
- ag-ui
- TypeScript
- mcp-agent
- Python
Adopt for
- ag-ui
- AG-UI is a protocol for integrating AI agents into frontend applications, written in TypeScript and licensed under MIT.
- mcp-agent
- Allows creation of efficient AI agents via Model Context Protocol with workflow patterns
Persona
- ag-ui
- -
- mcp-agent
- -
Runtime
- ag-ui
- -
- mcp-agent
- -
License
- ag-ui
- MIT
- mcp-agent
- Apache-2.0
Last pushed
- ag-ui
- Sep 19, 2026
- mcp-agent
- Jan 25, 2026
Categories
- ag-ui
- AI Agents, Developer Tools
- mcp-agent
- AI Agents
Trust and health
Maintenance
- ag-ui
- Very active (96%)
- mcp-agent
- Slowing (36%)
Days since push
- ag-ui
- 0d
- mcp-agent
- 237d
Open issues (now)
- ag-ui
- 379
- mcp-agent
- 138
Stars delta
- ag-ui
- +544 (30d)
- mcp-agent
- +71 (30d)
Open issues delta
- ag-ui
- +36 (30d)
- mcp-agent
- -2 (30d)
Full report
- ag-ui
- Trust report
- mcp-agent
- Trust report
Choose ag-ui if…
- ag-ui is primarily TypeScript; mcp-agent is Python.
- License: ag-ui is MIT, mcp-agent is Apache-2.0.
- Tags unique to ag-ui: ag-ui-protocol, agent-frontend, agent-integration, agent-ui.
- Also covers Developer Tools.
- When you need to integrate AI agents into frontend applications to create interactive and intelligent user interfaces.
When NOT to use ag-ui
- If your project does not require AI agent integration or if you are not interested in creating intelligent user interfaces.
- If you are not comfortable with TypeScript or prefer other languages for frontend development.
- When your application does not need to be integrated with Amazon Bedrock AgentCore, as AG-UI has specific support for this platform.
Choose mcp-agent if…
- mcp-agent is primarily Python; ag-ui is TypeScript.
- License: mcp-agent is Apache-2.0, ag-ui is MIT.
- Tags unique to mcp-agent: agents, llm, mcp, model-context-protocol.
- Need to implement the Model Context Protocol specifically in your agent development
When NOT to use mcp-agent
- Require a more customizable approach beyond pre-defined protocol and workflows
- Project demands specific AI frameworks unsupported by Model Context Protocol directly
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (ag-ui-protocol/ag-ui) · observed Sep 20, 2026
- GitHub forks (ag-ui-protocol/ag-ui) · observed Sep 20, 2026
- Last push (ag-ui-protocol/ag-ui) · observed Sep 19, 2026
- License file (MIT) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Sep 30, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (lastmile-ai/mcp-agent) · observed Sep 20, 2026
- GitHub forks (lastmile-ai/mcp-agent) · observed Sep 20, 2026
- Last push (lastmile-ai/mcp-agent) · observed Jan 25, 2026
- License file (Apache-2.0) · observed Sep 20, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: ag-ui 16k · mcp-agent 8.5k (synced Sep 20, 2026).
Common questions
- What is the difference between ag-ui and mcp-agent?
- ag-ui: Agent-User Interaction Protocol for frontend applications. mcp-agent: Build effective AI agents with Model Context Protocol.. See the comparison table for live GitHub stats and shared categories.
- When should I choose ag-ui over mcp-agent?
- Choose ag-ui over mcp-agent when ag-ui is primarily TypeScript; mcp-agent is Python; License: ag-ui is MIT, mcp-agent is Apache-2.0; Tags unique to ag-ui: ag-ui-protocol, agent-frontend, agent-integration, agent-ui; Also covers Developer Tools; When you need to integrate AI agents into frontend applications to create interactive and intelligent user interfaces.
- When should I choose mcp-agent over ag-ui?
- Choose mcp-agent over ag-ui when mcp-agent is primarily Python; ag-ui is TypeScript; License: mcp-agent is Apache-2.0, ag-ui is MIT; Tags unique to mcp-agent: agents, llm, mcp, model-context-protocol; Need to implement the Model Context Protocol specifically in your agent development.
- When should I avoid ag-ui?
- If your project does not require AI agent integration or if you are not interested in creating intelligent user interfaces. If you are not comfortable with TypeScript or prefer other languages for frontend development. When your application does not need to be integrated with Amazon Bedrock AgentCore, as AG-UI has specific support for this platform.
- When should I avoid mcp-agent?
- Require a more customizable approach beyond pre-defined protocol and workflows Project demands specific AI frameworks unsupported by Model Context Protocol directly
- Is ag-ui or mcp-agent more popular on GitHub?
- ag-ui has more GitHub stars (15,956 vs 8,549). Stars measure visibility, not whether either tool fits your constraints.
- Are ag-ui and mcp-agent open source?
- Yes - both are open-source projects on GitHub (ag-ui: MIT, mcp-agent: Apache-2.0).
- Where can I find alternatives to ag-ui or mcp-agent?
- GraphCanon lists graph-backed alternatives at ag-ui alternatives and mcp-agent alternatives (ag-ui markdown twin, mcp-agent markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, ag-ui or mcp-agent?
- ag-ui: Very active. mcp-agent: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for ag-ui and mcp-agent?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: ag-ui trust report; mcp-agent trust report.