Automated C SDK Generation for the Enterprise

Instantly generate highly optimized, memory-safe, zero-dependency C SDKs directly from your OpenAPI specifications. Built for edge computing, IoT, and high-frequency trading.

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Why C SDKs?

Distribute your API to embedded systems, legacy applications, and extreme-performance environments without forcing your clients to write manual bindings.

IoT & Edge Ready

Generated SDKs have minimal memory footprints and compile natively on RTOS, Linux, Android, and Windows, making them perfect for fleet management.

Zero Dependencies

Our generators emit pure ANSI C (C89). No heavy runtimes, no external library hell. Drop the source files directly into your customers' build systems.

CI/CD Integration

Automate generation. Hook our SaaS directly into your GitHub or GitLab pipelines to ensure your C SDKs are always in sync with your latest API spec.

The FFI Multiplier Effect

Look at AWS, Stripe, or Twilio. They spend millions of dollars and thousands of engineering hours maintaining separate, hand-written SDKs for Python, Node.js, Ruby, Java, Go, and .NET.

Stop rewriting your SDKs.

Because C is the universal language of computing, every modern programming language has a Foreign Function Interface (FFI) that can call C code directly. By generating a single, memory-safe C SDK from your OpenAPI spec, you instantly unlock the ability to generate thin wrappers for 40+ languages automatically.

Python (ctypes/cffi) Node.js (N-API) Rust (bindgen) Java (JNI/Panama) Go (CGO) Ruby (FFI) + 30 more

Transparent Pricing

Scale your API reach. Pay only for what you generate.

Starter

$0 /mo

For open-source projects and small APIs testing the waters.

  • 50 API Endpoints limit
  • Manual Generation via Web UI
  • Community Support
  • Standard ANSI C Templates
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Pro

$499 /mo

For growing startups needing automated C SDK pipelines.

  • Unlimited API Endpoints
  • GitHub / GitLab CI Integration
  • Priority Email Support
  • Hosted SDK Artifact Repository
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Enterprise

Custom

For enterprise workloads requiring custom templates and SLAs.

  • Custom C Generation Templates
  • Dedicated Account Manager
  • 99.99% Uptime SLA
  • Single Tenant / VPC Deployment
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Powered by our Open Source Core

Our SaaS is built on top of robust, battle-tested C89 frameworks. All core technologies remain open-source and free forever.

Frameworks for 'end' developers

SamuelMarks/cdd-c
The core engine: OpenAPI ↔ C. Frontend for C, generating from code, single-file analysis, and emission.
C
SamuelMarks/c-rest-framework
C REST Framework with builtin ORM (PostgreSQL, SQLite, MySQL) and OpenAPI. Native on Windows, Linux, macOS, DOS.
C
SamuelMarks/c-multiplatform
Cross platform GUI framework in ANSI C (C89), native for: Windows (GDI+); Linux (GTK+4); macOS (Cocoa); iOS; Android; web (WASM).
C

Libraries these depend on (and additional projects)

SamuelMarks/c-abstract-http
HTTP/HTTPS client interface reusing abstractions for Windows, macOS, iOS, Android, GTK+4, with libcurl fallback.
C
SamuelMarks/c-fs
std::filesystem inspired interface for C89 (MSVC2005, Cygwin, MSVC2026, Linux, macOS, etc.)
C++
SamuelMarks/c-orm
SQLite & PostgreSQL compatible simple ORM for C. Alembic/diesel style schema migration support. VERY portable.
C
offscale/c89stringutils
string functions from newer standards / common non-standards for C89
C
SamuelMarks/c-str-span
UTF-8 replacement for C strings, supporting zero-copy use-cases (non-null-terminated).
C
SamuelMarks/c-ci
Shared GitHub actions for my C projects to build & test on {MSVC,MinGW,Cygwin,Linux (gcc),macOS (clang)}
C