diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index e1d34e0f36..cfa43d2e10 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -215,13 +215,66 @@ jobs:
       - name: Cargo hack; check each feature/crate on its own
         run: cargo hack --exclude subxt --exclude subxt-signer --exclude subxt-lightclient --exclude subxt-rpcs --exclude-all-features --each-feature check --workspace
 
-      # Check the parachain-example code, which isn't a part of the workspace so is otherwise ignored.
+      # Check the full examples, which aren't a part of the workspace so are otherwise ignored.
       - name: Cargo check parachain-example
         run: cargo check --manifest-path examples/parachain-example/Cargo.toml
+      - name: Cargo check ffi-example
+        run: cargo check --manifest-path examples/ffi-example/Cargo.toml
 
       - if: "failure()"
         uses: "andymckay/cancel-action@a955d435292c0d409d104b57d8e78435a93a6ef1" # v0.5
 
+  ffi_example:
+    name: Run FFI Example
+    runs-on: ubuntu-latest
+    needs: [check]
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: Use substrate and polkadot node binaries
+        uses: ./.github/workflows/actions/use-nodes
+
+      - name: Install Rust stable toolchain
+        uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          target: wasm32-unknown-unknown
+          override: true
+
+      - name: Rust Cache
+        uses: Swatinem/rust-cache@9d47c6ad4b02e050fd481d890b2ea34778fd09d6 # v2.7.8
+
+      - name: Install 
+        uses: actions/setup-node@v4
+        with:
+          # Node version 20 and higher seem to cause an issue with the JS example so stick to 19 for now.
+          node-version: 19.x
+
+      - name: Cargo check/run ffi-example
+        run: |
+          # Start node on port 8000
+          substrate-node --dev --rpc-port 8000 > /dev/null 2>&1 &
+
+          # Build the Rust code (hopefully gives long enough for substrate server to start, too):
+          cd examples/ffi-example
+          cargo build
+
+          # Run the python version of the FFI code:
+          echo "Running Python FFI example..."
+          python3 src/main.py
+          echo "Python FFI example completed with exit code $?"
+          
+          # Run the node version of the FFI code
+          echo "Installing Node.js dependencies..."
+          npm i
+          echo "Running Node FFI example..."
+          node src/main.js
+          echo "Node FFI example completed with exit code $?"
+
+          pkill substrate-node
+
   wasm_check:
     name: Cargo check (WASM)
     runs-on: ubuntu-latest
diff --git a/Cargo.toml b/Cargo.toml
index a222e8c8aa..813e69f557 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,6 +30,7 @@ exclude = [
     "signer/wasm-tests",
     "examples/wasm-example",
     "examples/parachain-example",
+    "examples/ffi-example",
 ]
 resolver = "2"
 
diff --git a/examples/ffi-example/.gitignore b/examples/ffi-example/.gitignore
new file mode 100644
index 0000000000..20c086c5e9
--- /dev/null
+++ b/examples/ffi-example/.gitignore
@@ -0,0 +1,10 @@
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+db.sqlite
+db.sqlite-shm
+db.sqlite-wal
+.tool-versions
+
+/target
+/build
+/node_modules
\ No newline at end of file
diff --git a/examples/ffi-example/Cargo.lock b/examples/ffi-example/Cargo.lock
new file mode 100644
index 0000000000..a856eed9b6
--- /dev/null
+++ b/examples/ffi-example/Cargo.lock
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+ "zerovec-derive",
+]
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+name = "zerovec-derive"
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diff --git a/examples/ffi-example/Cargo.toml b/examples/ffi-example/Cargo.toml
new file mode 100644
index 0000000000..91f0bc95af
--- /dev/null
+++ b/examples/ffi-example/Cargo.toml
@@ -0,0 +1,14 @@
+[package]
+name = "subxt-ffi"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+hex = "0.4.3"
+subxt = { path = "../../subxt" }
+subxt-signer = { path = "../../signer" }
+tokio = { version = "1", features = ["full"] }
+
+[lib]
+crate-type = ["cdylib"]
+name = "subxt_ffi"
diff --git a/examples/ffi-example/README.md b/examples/ffi-example/README.md
new file mode 100644
index 0000000000..28ae142b6c
--- /dev/null
+++ b/examples/ffi-example/README.md
@@ -0,0 +1,120 @@
+# ffi-example
+
+This example shows how to expose a small piece of Subxt functionality, in our case, a single balance-transfer call, as a native C-ABI library, consumable from Python and Node.js.
+
+## Overview
+
+- We want to let non-Rust clients interact with any Substrate-based node (Polkadot in this example) via a tiny FFI layer.
+- Instead of exposing Subxt’s full, Rust-centric API, we build a thin **facade crate** that:
+  1. Calls Subxt under the hood  
+  2. Exposes just the functions we need via `pub extern "C" fn …`  
+- Client languages (Python, JavaScript, Swift, Kotlin, etc.) load the compiled `.so`/`.dylib`/`.dll` and call these C-ABI functions directly.
+
+```mermaid
+flowchart LR
+  subgraph Rust side
+    subxt[Subxt Public API]
+    facade[Facade crate]
+    node[Substrate node]
+    cabi[C ABI library]
+    subxt --> facade
+    facade --> node
+    facade --> cabi
+  end
+
+  subgraph Client side
+    swift[Swift client]
+    python[Python client]
+    kotlin[Kotlin client]
+    js[JavaScript client]
+    swift --> cabi
+    python --> cabi
+    kotlin --> cabi
+    js --> cabi
+  end
+```
+
+Our one example function is:
+
+```rust
+pub extern "C" fn do_transfer(dest_hex: *const c_char, amount: u64) -> i32
+```
+
+which does a single balance transfer and returns 0 on success, –1 on error.
+
+## Prerequisites
+- Rust toolchain (with cargo)
+- Python 3
+- Node.js (for the JS example. Version 19 worked on my M2 Mac, but version 22 did not, so YMMY).
+- A running Substrate node (Polkadot) on ws://127.0.0.1:8000. One can use Chopsticks for a quick local Polkadot node:
+
+  ```shell
+  npx @acala-network/chopsticks \
+    --config=https://raw.githubusercontent.com/AcalaNetwork/chopsticks/master/configs/polkadot.yml
+  ```
+
+  Or, if you have a `substrate-node` binary, just run `substrate-node --dev  --rpc-port 8000`.
+- In our Python and Javascript files, we introduce a **dest** variable that represents the destination account for the transfer, we gave it a hard coded value (Bob's account public key) from the running Chopsticks node. Feel free to change it to any other account, or better yet, make it generic!
+
+If you run into any issues running the Node version, I found that I needed to run `brew install python-setuptools` too.
+
+## Building
+
+### Build the Rust facade library
+
+```shell
+cargo build
+```
+
+This will produce a dynamic library in target/debug/ (or target/release/ if you pass --release):
+- macOS: libsubxt_ffi.dylib
+- Linux:  libsubxt_ffi.so
+- Windows: subxt_ffi.dll
+
+## Running
+
+### Python
+
+#### on macOS / Linux
+
+```shell
+python3 src/main.py
+```
+
+Expected output:
+
+✓ transfer succeeded
+
+### Node.js
+
+#### Install npm dependencies
+In the root of the project run:
+
+```shell
+npm install
+```
+
+then:
+
+``` shell
+node src/main.js
+```
+
+Expected output:
+
+✓ transfer succeeded
+
+# Development notes
+- Hex handling: We strip an optional 0x prefix and decode into 32 bytes.
+- FFI safety: We only pass pointers and primitive types (u64, i32) across the boundary.
+- Error codes: We return 0 on success, -1 on any kind of failure (decode error, RPC error, etc.).
+- You can extend this facade crate with any additional functions you need—just expose them as pub extern "C" and follow the same pattern.
+
+# Limitations
+Translating a complex Rust API like Subxt to a bare bones C ABI ready to be consumed by foreign languages has its limitations. Here's a few of them:
+
+- Complex types (strings, structs) require to design C-safe representations.
+- Only C primitive types (integers, pointers) are FFI-safe; anything else must be translated.
+- Manual memory management glue code is needed if owned data is returned.
+- Needs a manual translation to every foreign language we export to, every time the Rust library changes.
+
diff --git a/examples/ffi-example/package-lock.json b/examples/ffi-example/package-lock.json
new file mode 100644
index 0000000000..b031ff9d3d
--- /dev/null
+++ b/examples/ffi-example/package-lock.json
@@ -0,0 +1,123 @@
+{
+  "name": "subxt-ffi",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "subxt-ffi",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "ffi-napi": "^4.0.3"
+      }
+    },
+    "node_modules/debug": {
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.1.tgz",
+      "integrity": "sha512-KcKCqiftBJcZr++7ykoDIEwSa3XWowTfNPo92BYxjXiyYEVrUQh2aLyhxBCwww+heortUFxEJYcRzosstTEBYQ==",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "^2.1.3"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/ffi-napi": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/ffi-napi/-/ffi-napi-4.0.3.tgz",
+      "integrity": "sha512-PMdLCIvDY9mS32RxZ0XGb95sonPRal8aqRhLbeEtWKZTe2A87qRFG9HjOhvG8EX2UmQw5XNRMIOT+1MYlWmdeg==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^4.1.1",
+        "get-uv-event-loop-napi-h": "^1.0.5",
+        "node-addon-api": "^3.0.0",
+        "node-gyp-build": "^4.2.1",
+        "ref-napi": "^2.0.1 || ^3.0.2",
+        "ref-struct-di": "^1.1.0"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/get-symbol-from-current-process-h": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/get-symbol-from-current-process-h/-/get-symbol-from-current-process-h-1.0.2.tgz",
+      "integrity": "sha512-syloC6fsCt62ELLrr1VKBM1ggOpMdetX9hTrdW77UQdcApPHLmf7CI7OKcN1c9kYuNxKcDe4iJ4FY9sX3aw2xw==",
+      "license": "MIT"
+    },
+    "node_modules/get-uv-event-loop-napi-h": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/get-uv-event-loop-napi-h/-/get-uv-event-loop-napi-h-1.0.6.tgz",
+      "integrity": "sha512-t5c9VNR84nRoF+eLiz6wFrEp1SE2Acg0wS+Ysa2zF0eROes+LzOfuTaVHxGy8AbS8rq7FHEJzjnCZo1BupwdJg==",
+      "license": "MIT",
+      "dependencies": {
+        "get-symbol-from-current-process-h": "^1.0.1"
+      }
+    },
+    "node_modules/ms": {
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+      "license": "MIT"
+    },
+    "node_modules/node-addon-api": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-3.2.1.tgz",
+      "integrity": "sha512-mmcei9JghVNDYydghQmeDX8KoAm0FAiYyIcUt/N4nhyAipB17pllZQDOJD2fotxABnt4Mdz+dKTO7eftLg4d0A==",
+      "license": "MIT"
+    },
+    "node_modules/node-gyp-build": {
+      "version": "4.8.4",
+      "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.8.4.tgz",
+      "integrity": "sha512-LA4ZjwlnUblHVgq0oBF3Jl/6h/Nvs5fzBLwdEF4nuxnFdsfajde4WfxtJr3CaiH+F6ewcIB/q4jQ4UzPyid+CQ==",
+      "license": "MIT",
+      "bin": {
+        "node-gyp-build": "bin.js",
+        "node-gyp-build-optional": "optional.js",
+        "node-gyp-build-test": "build-test.js"
+      }
+    },
+    "node_modules/ref-napi": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/ref-napi/-/ref-napi-3.0.3.tgz",
+      "integrity": "sha512-LiMq/XDGcgodTYOMppikEtJelWsKQERbLQsYm0IOOnzhwE9xYZC7x8txNnFC9wJNOkPferQI4vD4ZkC0mDyrOA==",
+      "hasInstallScript": true,
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^4.1.1",
+        "get-symbol-from-current-process-h": "^1.0.2",
+        "node-addon-api": "^3.0.0",
+        "node-gyp-build": "^4.2.1"
+      },
+      "engines": {
+        "node": ">= 10.0"
+      }
+    },
+    "node_modules/ref-struct-di": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/ref-struct-di/-/ref-struct-di-1.1.1.tgz",
+      "integrity": "sha512-2Xyn/0Qgz89VT+++WP0sTosdm9oeowLP23wRJYhG4BFdMUrLj3jhwHZNEytYNYgtPKLNTP3KJX4HEgBvM1/Y2g==",
+      "license": "MIT",
+      "dependencies": {
+        "debug": "^3.1.0"
+      }
+    },
+    "node_modules/ref-struct-di/node_modules/debug": {
+      "version": "3.2.7",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.7.tgz",
+      "integrity": "sha512-CFjzYYAi4ThfiQvizrFQevTTXHtnCqWfe7x1AhgEscTz6ZbLbfoLRLPugTQyBth6f8ZERVUSyWHFD/7Wu4t1XQ==",
+      "license": "MIT",
+      "dependencies": {
+        "ms": "^2.1.1"
+      }
+    }
+  }
+}
diff --git a/examples/ffi-example/package.json b/examples/ffi-example/package.json
new file mode 100644
index 0000000000..17a384d577
--- /dev/null
+++ b/examples/ffi-example/package.json
@@ -0,0 +1,23 @@
+{
+  "name": "subxt-ffi",
+  "version": "1.0.0",
+  "description": "Example of exposing some Subxt functionality to other languages through FFI",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/wassimans/subxt-ffi.git"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "bugs": {
+    "url": "https://github.com/wassimans/subxt-ffi/issues"
+  },
+  "homepage": "https://github.com/wassimans/subxt-ffi#readme",
+  "dependencies": {
+    "ffi-napi": "^4.0.3"
+  }
+}
diff --git a/examples/ffi-example/src/lib.rs b/examples/ffi-example/src/lib.rs
new file mode 100644
index 0000000000..928300c9a7
--- /dev/null
+++ b/examples/ffi-example/src/lib.rs
@@ -0,0 +1,73 @@
+use hex::decode;
+use std::{ffi::CStr, os::raw::c_char, sync::OnceLock};
+use subxt::{OnlineClient, PolkadotConfig, dynamic::Value, ext::scale_value::Composite, tx};
+use subxt_signer::sr25519::dev;
+use tokio::runtime::Runtime;
+
+static TOKIO: OnceLock<Runtime> = OnceLock::new();
+fn tokio_rt() -> &'static Runtime {
+    TOKIO.get_or_init(|| Runtime::new().expect("failed to start tokio"))
+}
+
+/// A simple C‐ABI function to transfer `amount` to a hex‐encoded `dest`.
+/// Assumes a running node’s WS endpoint is at ws://127.0.0.1:8000
+#[unsafe(no_mangle)]
+pub extern "C" fn do_transfer(dest_hex: *const c_char, amount: u64) -> i32 {
+    let amount = amount as u128;
+    // We need to convert C string to Rust str
+    let raw_s = unsafe { CStr::from_ptr(dest_hex).to_str().unwrap_or_default() };
+
+    // Strip optional 0x prefix
+    let s = raw_s.strip_prefix("0x").unwrap_or(raw_s);
+
+    // Decode hex, force a 32‐byte AccountId
+    let raw = decode(s).expect("hex decode");
+    let arr: [u8; 32] = raw.as_slice().try_into().expect("must be 32 bytes");
+
+    // Wrap into a MultiAddress::Id variant for dynamic calls:
+    let dst = Value::variant(
+        "Id",
+        Composite::unnamed(vec![
+            // scale encode
+            Value::from_bytes(arr.to_vec()),
+        ]),
+    );
+
+    // Spin up (or reuse) our Tokio runtime and connect:
+    let client = tokio_rt().block_on(async {
+        OnlineClient::<PolkadotConfig>::from_url("ws://127.0.0.1:8000")
+            .await
+            .unwrap()
+    });
+    let signer = dev::alice();
+
+    // Build the dynamic metadata extrinsic:
+    let tx = tx::dynamic(
+        "Balances",
+        "transfer_keep_alive",
+        vec![
+            dst.clone(),
+            // primitive numeric value
+            Value::u128(amount),
+        ],
+    );
+
+    // Submit and wait for finalize
+    let res: Result<_, subxt::Error> = tokio_rt().block_on(async {
+        let progress = client
+            .tx()
+            .sign_and_submit_then_watch_default(&tx, &signer)
+            .await?;
+        progress.wait_for_finalized_success().await
+    });
+
+    // Return code
+    match res {
+        Ok(_) => 0,
+        Err(e) => {
+            // print the Subxt error
+            eprintln!("do_transfer failed: {:#?}", e);
+            -1
+        }
+    }
+}
diff --git a/examples/ffi-example/src/main.js b/examples/ffi-example/src/main.js
new file mode 100644
index 0000000000..88bc42e586
--- /dev/null
+++ b/examples/ffi-example/src/main.js
@@ -0,0 +1,28 @@
+const path = require("path");
+const ffi = require("ffi-napi");
+
+// Pick the correct library file name depending on the platform
+const libPath = path.resolve(__dirname, "../target/debug", {
+  darwin: "libsubxt_ffi.dylib",
+  linux:  "libsubxt_ffi.so",
+  win32:  "subxt_ffi.dll"
+}[process.platform]);
+
+// Declare the FFI interface
+const lib = ffi.Library(libPath, {
+  "do_transfer": ["int", ["string", "uint64"]]
+});
+
+function doTransfer(destHex, amount) {
+  const code = lib.do_transfer(destHex, amount);
+  if (code === 0) {
+    console.log("✓ transfer succeeded");
+  } else {
+    console.error("✗ transfer failed, code =", code);
+  }
+}
+
+// Example usage:
+const dest    = "0x8eaf04151687736326c9fea17e25fc5287613693c912909cb226aa4794f26a48";
+const amount  = 1_000_000_000_000;            // fits in u64
+doTransfer(dest, amount);
diff --git a/examples/ffi-example/src/main.py b/examples/ffi-example/src/main.py
new file mode 100644
index 0000000000..4b645556c4
--- /dev/null
+++ b/examples/ffi-example/src/main.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+import os, sys, ctypes, platform
+from ctypes import c_char_p, c_uint64, c_int
+
+# The library name depends on the playform type
+if platform.system() == "Linux":
+    libname = "libsubxt_ffi.so"
+elif platform.system() == "Darwin":
+    libname = "libsubxt_ffi.dylib"
+elif platform.system() == "Windows":
+    libname = "subxt_ffi.dll"
+else:
+    raise RuntimeError(f"Unsupported platform: {platform.system()}")
+
+# Load the library
+lib_path = os.path.join(os.path.dirname(__file__), "..", "target", "debug", libname)
+lib = ctypes.CDLL(lib_path)
+
+# Tell ctypes about our function signature, the one we defined in the Rust library
+lib.do_transfer.argtypes = (c_char_p, c_uint64)
+lib.do_transfer.restype  = c_int
+
+def do_transfer(dest_hex: str, amount: int) -> int:
+    """
+    Perform a transfer.
+    dest_hex:  hex-string of the 32-byte AccountId (e.g. "0x...")
+    amount:    integer amount (fits in u64)
+    Returns 0 on success, –1 on error.
+    """
+    # ensure we pass a C-string pointer
+    dest_bytes = dest_hex.encode("utf8")
+    return lib.do_transfer(dest_bytes, amount)
+
+if __name__ == "__main__":
+    # example usage
+    dest = "0x8eaf04151687736326c9fea17e25fc5287613693c912909cb226aa4794f26a48"
+    amt  = 1_000_000_000_000
+    code = do_transfer(dest, amt)
+    if code == 0:
+        print("✓ transfer succeeded")
+    else:
+        print("✗ transfer failed")