zero sugar, zero fat, zero serialization overhead
A sexy binary protocol written in c with zero-allocations
The AI-native wire format for structured data. 100% comprehension on every frontier model. 71% fewer tokens than JSON. 33B+ lossless round-trips across 5 formats. Spec v3.1 Stable.
MCP proxy: zero-code GCF adoption. Wraps any MCP server, converts JSON to GCF mid-flight. 53-71% fewer tokens. Works with any structured data.
Typed schema definition language with first-class encoding semantics — bit-packing, deterministic encoding, cross-language codegen (Rust, TypeScript, Go)
GCF Go implementation. 100% comprehension. 71% fewer tokens than JSON, 25% fewer than TOON. 200M round-trips verified. v1.2.0.
GCF Rust implementation. 100% comprehension. 71% fewer tokens than JSON, 25% fewer than TOON. 33B+ round-trips verified. v2.1.0.
GCF Python implementation. 100% comprehension. 71% fewer tokens than JSON, 25% fewer than TOON. 10M round-trips verified. v2.1.0.
GCF TypeScript implementation. 100% comprehension. 71% fewer tokens than JSON, 25% fewer than TOON. 20M round-trips verified. v2.1.0.
Binary framing protocol that replaces JSON serialization in Tauri IPC for high-frequency data streams. 28-33x faster encode/decode, 44% smaller wire.
Fork of toon-format/toon with GCF comparison. GCF uses 34% fewer tokens on their own benchmark.
Python SDK for AxonOS — RFC-0006 intent wire format and capability model, byte-compatible with the Rust reference.
Shared no_std wire-format types for discovery-* flight-controller telemetry — postcard + COBS, single source of truth for firmware↔host bytes on the wire
Schema-free Protocol Buffers wire-format decoder. Decode raw protobuf bytes without a .proto file. Zero dependencies.
jsonalternative.com - GCF is the JSON alternative for AI pipelines
Minecraft protocol codec — VarInt/VarLong encoding, wire-format types, frame encoding
GCF vs TOON benchmark data
Tree-sitter grammar for GCF. Full spec compliance, WASM build for browser playground.
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