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CocoIndex vs Metatype
Short answer: Pick CocoIndex if you want incremental indexing for AI agents; pick Metatype if you want declarative API development with type-safe graphs. Both are free and open source.
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CocoIndexOpen source ETL to index fresh data for AI
MetatypeBuild backend components with WASM, Typescript and Python, no matter where and how your (legacy) systems are!Which to pick
Pick CocoIndex if you want…
- Incremental indexing for AI agents
Pick Metatype if you want…
- Declarative API development with type-safe graphs
- WASM-based backend building
- Integrations with TypeScript (on Metatype's list, not CocoIndex's)
Side by side
- What it is
- CocoIndex:CocoIndex is an open-source incremental ETL framework that keeps codebases and other data continuously indexed for AI agents.
- Metatype:Metatype is an open-source declarative platform to author and deploy APIs using TypeScript, Python, Rust and WASM.
- Best for
- CocoIndex:Incremental indexing for AI agents
- Metatype:Declarative API development with type-safe graphs
- Who it’s for
- CocoIndex:Developers building AI agents that need fresh, structured context from code, docs, and other sources.
- Metatype:Developers building backend services, APIs, and integrations across legacy systems.
- Pricing
- CocoIndex:Open source
- Metatype:Open source
- Starting price
- CocoIndex:Free
- Metatype:Free
- Free plan or trial
- CocoIndex:Free to use
- Metatype:Free to use
- Open source
- CocoIndex:Yes, 11,608 GitHub stars
- Metatype:Yes, 407 GitHub stars
- Works with
- CocoIndex:Python, Rust
- Metatype:TypeScript, Python, Rust
CocoIndex features
- Real-time incremental indexing. Reindexes only the changed delta, delivering sub-second freshness at any repo size.
- AST-based code context. Generates call graphs, hierarchies, symbol tables and semantic indexes directly from source code.
- Semantic search. Find functions, patterns or intent by meaning rather than plain text grep.
- Built-in lineage & observability. Tracks every byte back to its source and provides metrics on freshness, throughput and cost.
- Parallel task scheduling. Executes transformations in parallel by default for low-latency, low-cost processing.
- Multi-source support. Ingests code, meeting notes, APIs, databases, vector stores, files, video, audio and more.
Metatype features
- Typegraphs. Programmable virtual graphs that describe all stack components and enable type-safe API composition.
- Typegate. GraphQL/REST composition engine that compiles, optimizes, caches queries and enforces auth policies.
- Meta CLI. Live-reloading CLI for one-command deployment to Metatype cloud or self-hosted instances.
- Multi-language support. Write backend components in TypeScript, Python or Rust and run them via WebAssembly.
- Reusable components. Install third-party dependencies as reusable modules within typegraphs.
- Open-source & extensible. Hosted on GitHub with community contributions and a permissive MPL-2.0 license.
CocoIndex vs Metatype FAQ
What is the difference between CocoIndex and Metatype?+
Metatype builds backend components with WASM and TypeScript, whereas CocoIndex indexes arbitrary data for AI agents.
Should I use CocoIndex or Metatype?+
Pick CocoIndex if you want incremental indexing for AI agents. Pick Metatype if you want declarative API development with type-safe graphs, WASM-based backend building or integrations with TypeScript (on Metatype's list, not CocoIndex's).
Is CocoIndex or Metatype free?+
Yes, both are free and open source.
Is CocoIndex or Metatype open source?+
Yes, both are open source: CocoIndex (cocoindex-io/cocoindex on GitHub, Apache-2.0 license) and Metatype (metatypedev/metatype on GitHub, MPL-2.0 license).
Do CocoIndex and Metatype integrate with the same tools?+
Partly. Both list Python and Rust. Metatype also lists TypeScript.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.