Mantle

Mantle

Open-source service runtime configured by agents via WebMCP

58upvotes
Launched September 18, 2026

About Mantle

Mantle is an innovative open-source framework designed for developers and businesses seeking to streamline service development. It enables users to convert business rules into typed schemas, views, procedures, and HTTP/MCP triggers, all through a browser-based interface. The platform's WebMCP-native Builder allows for designing and verifying services visually, making it accessible to both technical and semi-technical users. Once the design phase is complete, a coding agent can finalize the service for self-hosting or deployment. With its open-source core and live live OSS and Builder tools, Mantle promotes flexibility and community-driven development. Additionally, Mantle Cloud, currently in Internal Beta, hints at an upcoming cloud-hosted offering that aims to simplify deployment and scaling. Its unique approach of combining visual service design with agent-assisted coding positions it as a compelling solution for rapid development, automation, and custom service creation.

Screenshots

Mantle screenshot 1
Mantle screenshot 2
Mantle screenshot 3
Mantle screenshot 4

Pros

  • Open-source foundation fosters community collaboration and transparency
  • Web-based visual service design simplifies complex development tasks
  • Supports transformation of business rules into structured schemas and triggers
  • Agent-assisted finishing streamlines deployment and reduces manual coding effort
  • Flexible self-hosting options and plans for cloud deployment

Cons

  • Cloud service in Beta may have limited features and stability
  • Requires familiarity with web-based development and service design
  • Limited user base and votes currently may indicate a niche appeal

Use Cases

1Rapid development of custom APIs and microservices
2Transforming business rules into executable services
3Prototyping and verifying service logic visually before coding
4Automating service deployment for self-hosted environments
5Building scalable backend services for AI and automation workflows

Pricing

Pricing not verified

Quick Info

Upvotes58
Comments1
Launched9/18/2026

Topics

Open SourceDeveloper ToolsArtificial IntelligenceGitHubOpenAI Day

Makers

Peng-Han Su

Peng-Han Su

Alternatives

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