diff --git a/.github/workflows/build-examples.yaml b/.github/workflows/build-examples.yaml
new file mode 100644
index 0000000..8426661
--- /dev/null
+++ b/.github/workflows/build-examples.yaml
@@ -0,0 +1,51 @@
+name: Build Examples
+
+on: [push]
+
+permissions:
+  contents: read
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build-examples:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Clone repo
+        uses: actions/checkout@v5
+        with:
+          submodules: recursive
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: wasm32-wasip1, wasm32-wasip2
+
+      - name: Build CDN examples (wasm32-wasip1)
+        run: |
+          for dir in examples/cdn/*/; do
+            [ -f "$dir/Cargo.toml" ] || continue
+            echo "::group::$dir"
+            (cd "$dir" && cargo build --release --target wasm32-wasip1)
+            echo "::endgroup::"
+          done
+
+      - name: Build http/basic examples (wasm32-wasip1)
+        run: |
+          for dir in examples/http/basic/*/; do
+            [ -f "$dir/Cargo.toml" ] || continue
+            echo "::group::$dir"
+            (cd "$dir" && cargo build --release --target wasm32-wasip1)
+            echo "::endgroup::"
+          done
+
+      - name: Build http/wasi examples (wasm32-wasip2)
+        run: |
+          for dir in examples/http/wasi/*/; do
+            [ -f "$dir/Cargo.toml" ] || continue
+            echo "::group::$dir"
+            (cd "$dir" && cargo build --release --target wasm32-wasip2)
+            echo "::endgroup::"
+          done
diff --git a/build-examples.sh b/build-examples.sh
new file mode 100755
index 0000000..8a3870d
--- /dev/null
+++ b/build-examples.sh
@@ -0,0 +1,134 @@
+#!/usr/bin/env bash
+# Build all FastEdge SDK examples.
+#
+# Each example is a standalone crate (its own [workspace] root), so a single
+# cargo build from the repo root won't pick them up. This script iterates over
+# each example directory and runs `cargo build --release` with the right target.
+#
+# Targets:
+#   examples/cdn/*          -> wasm32-wasip1
+#   examples/http/basic/*   -> wasm32-wasip1
+#   examples/http/wasi/*    -> wasm32-wasip2
+#
+# Usage:
+#   ./build-examples.sh                # build everything
+#   ./build-examples.sh cdn            # build only CDN examples
+#   ./build-examples.sh http-basic     # build only http/basic examples
+#   ./build-examples.sh http-wasi      # build only http/wasi examples
+#   ./build-examples.sh clean          # cargo clean every example
+
+set -u
+
+REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+cd "$REPO_ROOT"
+
+GROUP="${1:-all}"
+
+PASSED=()
+FAILED=()
+SKIPPED=()
+
+build_group() {
+    local label="$1"
+    local target="$2"
+    local glob="$3"
+
+    shopt -s nullglob
+    local dirs=($glob)
+    shopt -u nullglob
+
+    if [ ${#dirs[@]} -eq 0 ]; then
+        echo "[$label] no example directories matched: $glob"
+        return
+    fi
+
+    echo
+    echo "=========================================="
+    echo "  Building $label (target: $target)"
+    echo "=========================================="
+
+    for dir in "${dirs[@]}"; do
+        [ -f "$dir/Cargo.toml" ] || { SKIPPED+=("$dir (no Cargo.toml)"); continue; }
+        local name="${dir#$REPO_ROOT/}"
+        echo
+        echo "--- $name ---"
+        if (cd "$dir" && cargo build --release --target "$target"); then
+            PASSED+=("$name")
+        else
+            FAILED+=("$name")
+        fi
+    done
+}
+
+clean_group() {
+    local label="$1"
+    local glob="$2"
+
+    shopt -s nullglob
+    local dirs=($glob)
+    shopt -u nullglob
+
+    if [ ${#dirs[@]} -eq 0 ]; then
+        echo "[$label] no example directories matched: $glob"
+        return
+    fi
+
+    echo
+    echo "=========================================="
+    echo "  Cleaning $label"
+    echo "=========================================="
+
+    for dir in "${dirs[@]}"; do
+        [ -f "$dir/Cargo.toml" ] || { SKIPPED+=("$dir (no Cargo.toml)"); continue; }
+        local name="${dir#$REPO_ROOT/}"
+        echo
+        echo "--- $name ---"
+        if (cd "$dir" && cargo clean); then
+            PASSED+=("$name")
+        else
+            FAILED+=("$name")
+        fi
+    done
+}
+
+case "$GROUP" in
+    cdn)
+        build_group "cdn" "wasm32-wasip1" "$REPO_ROOT/examples/cdn/*/"
+        ;;
+    http-basic)
+        build_group "http/basic" "wasm32-wasip1" "$REPO_ROOT/examples/http/basic/*/"
+        ;;
+    http-wasi)
+        build_group "http/wasi" "wasm32-wasip2" "$REPO_ROOT/examples/http/wasi/*/"
+        ;;
+    all)
+        build_group "cdn"        "wasm32-wasip1" "$REPO_ROOT/examples/cdn/*/"
+        build_group "http/basic" "wasm32-wasip1" "$REPO_ROOT/examples/http/basic/*/"
+        build_group "http/wasi"  "wasm32-wasip2" "$REPO_ROOT/examples/http/wasi/*/"
+        ;;
+    clean)
+        clean_group "cdn"        "$REPO_ROOT/examples/cdn/*/"
+        clean_group "http/basic" "$REPO_ROOT/examples/http/basic/*/"
+        clean_group "http/wasi"  "$REPO_ROOT/examples/http/wasi/*/"
+        ;;
+    *)
+        echo "Unknown group: $GROUP" >&2
+        echo "Usage: $0 [all|cdn|http-basic|http-wasi|clean]" >&2
+        exit 2
+        ;;
+esac
+
+echo
+echo "=========================================="
+echo "  Summary"
+echo "=========================================="
+echo "  passed:  ${#PASSED[@]}"
+echo "  failed:  ${#FAILED[@]}"
+echo "  skipped: ${#SKIPPED[@]}"
+
+if [ ${#FAILED[@]} -gt 0 ]; then
+    echo
+    echo "Failed examples:"
+    for f in "${FAILED[@]}"; do echo "  - $f"; done
+    exit 1
+fi
diff --git a/examples/cdn/api_key/Cargo.lock b/examples/cdn/api_key/Cargo.lock
index d4a0225..380241c 100644
--- a/examples/cdn/api_key/Cargo.lock
+++ b/examples/cdn/api_key/Cargo.lock
@@ -2,18 +2,6 @@
 # It is not intended for manual editing.
 version = 4
 
-[[package]]
-name = "ahash"
-version = "0.8.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a15f179cd60c4584b8a8c596927aadc462e27f2ca70c04e0071964a73ba7a75"
-dependencies = [
- "cfg-if",
- "once_cell",
- "version_check",
- "zerocopy",
-]
-
 [[package]]
 name = "allocator-api2"
 version = "0.2.21"
@@ -46,12 +34,6 @@ version = "1.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e748733b7cbc798e1434b6ac524f0c1ff2ab456fe201501e6497c8417a4fc33"
 
-[[package]]
-name = "cfg-if"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
-
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -60,43 +42,136 @@ checksum = "877a4ace8713b0bcf2a4e7eec82529c029f1d0619886d18145fea96c3ffe5c0f"
 
 [[package]]
 name = "fastedge"
-version = "0.2.0"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43795490d6e81dd5dc0c9bf5c9d442e0aba1af2de5118fe6e5b0d3beb69cccbe"
+checksum = "f9042fccaffdd2171e8ff481e5c21d22f15b8a4454b37273c2f3f902fb3d375e"
 dependencies = [
  "bytes",
  "fastedge-derive",
  "http",
  "mime",
  "thiserror",
- "tracing",
  "wit-bindgen",
 ]
 
 [[package]]
 name = "fastedge-derive"
-version = "0.2.1"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09bb5f756c87c178d7a6c596eb3848df367cbdce8998a726363b13091655e2cf"
+checksum = "acacf180f92cbdf6f2fe1a772b7d92301e430ba207fb15b2fc87ccab4e418ff9"
 dependencies = [
  "proc-macro2",
  "quote",
  "syn",
 ]
 
+[[package]]
+name = "foldhash"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9c4f5dac5e15c24eb999c26181a6ca40b39fe946cbe4c263c7209467bc83af2"
+
 [[package]]
 name = "foldhash"
 version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "77ce24cb58228fbb8aa041425bb1050850ac19177686ea6e0f41a70416f56fdb"
 
+[[package]]
+name = "futures"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b147ee9d1f6d097cef9ce628cd2ee62288d963e16fb287bd9286455b241382d"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-executor",
+ "futures-io",
+ "futures-sink",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-channel"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07bbe89c50d7a535e539b8c17bc0b49bdb77747034daa8087407d655f3f7cc1d"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+]
+
+[[package]]
+name = "futures-core"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7e3450815272ef58cec6d564423f6e755e25379b217b0bc688e295ba24df6b1d"
+
+[[package]]
+name = "futures-executor"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf29c38818342a3b26b5b923639e7b1f4a61fc5e76102d4b1981c6dc7a7579d"
+dependencies = [
+ "futures-core",
+ "futures-task",
+ "futures-util",
+]
+
+[[package]]
+name = "futures-io"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cecba35d7ad927e23624b22ad55235f2239cfa44fd10428eecbeba6d6a717718"
+
+[[package]]
+name = "futures-macro"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e835b70203e41293343137df5c0664546da5745f82ec9b84d40be8336958447b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "futures-sink"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c39754e157331b013978ec91992bde1ac089843443c49cbc7f46150b0fad0893"
+
+[[package]]
+name = "futures-task"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "037711b3d59c33004d3856fbdc83b99d4ff37a24768fa1be9ce3538a1cde4393"
+
+[[package]]
+name = "futures-util"
+version = "0.3.32"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "389ca41296e6190b48053de0321d02a77f32f8a5d2461dd38762c0593805c6d6"
+dependencies = [
+ "futures-channel",
+ "futures-core",
+ "futures-io",
+ "futures-macro",
+ "futures-sink",
+ "futures-task",
+ "memchr",
+ "pin-project-lite",
+ "slab",
+]
+
 [[package]]
 name = "hashbrown"
-version = "0.14.5"
+version = "0.15.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
+checksum = "9229cfe53dfd69f0609a49f65461bd93001ea1ef889cd5529dd176593f5338a1"
 dependencies = [
- "ahash",
+ "foldhash 0.1.5",
 ]
 
 [[package]]
@@ -107,7 +182,7 @@ checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
 dependencies = [
  "allocator-api2",
  "equivalent",
- "foldhash",
+ "foldhash 0.2.0",
 ]
 
 [[package]]
@@ -157,10 +232,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
 
 [[package]]
-name = "leb128"
-version = "0.2.5"
+name = "leb128fmt"
+version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67"
+checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"
 
 [[package]]
 name = "log"
@@ -279,19 +354,10 @@ dependencies = [
 ]
 
 [[package]]
-name = "smallvec"
-version = "1.15.1"
+name = "slab"
+version = "0.4.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
-
-[[package]]
-name = "spdx"
-version = "0.10.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3e17e880bafaeb362a7b751ec46bdc5b61445a188f80e0606e68167cd540fa3"
-dependencies = [
- "smallvec",
-]
+checksum = "0c790de23124f9ab44544d7ac05d60440adc586479ce501c1d6d7da3cd8c9cf5"
 
 [[package]]
 name = "syn"
@@ -306,55 +372,24 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.69"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6aaf5339b578ea85b50e080feb250a3e8ae8cfcdff9a461c9ec2904bc923f52"
+checksum = "4288b5bcbc7920c07a1149a35cf9590a2aa808e0bc1eafaade0b80947865fbc4"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.69"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
+checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
 dependencies = [
  "proc-macro2",
  "quote",
  "syn",
 ]
 
-[[package]]
-name = "tracing"
-version = "0.1.44"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "63e71662fa4b2a2c3a26f570f037eb95bb1f85397f3cd8076caed2f026a6d100"
-dependencies = [
- "pin-project-lite",
- "tracing-attributes",
- "tracing-core",
-]
-
-[[package]]
-name = "tracing-attributes"
-version = "0.1.31"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7490cfa5ec963746568740651ac6781f701c9c5ea257c58e057f3ba8cf69e8da"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "tracing-core"
-version = "0.1.36"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "db97caf9d906fbde555dd62fa95ddba9eecfd14cb388e4f491a66d74cd5fb79a"
-dependencies = [
- "once_cell",
-]
-
 [[package]]
 name = "unicode-ident"
 version = "1.0.24"
@@ -367,86 +402,68 @@ version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
 
-[[package]]
-name = "version_check"
-version = "0.9.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
-
 [[package]]
 name = "wasm-encoder"
-version = "0.215.0"
+version = "0.239.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fb56df3e06b8e6b77e37d2969a50ba51281029a9aeb3855e76b7f49b6418847"
+checksum = "5be00faa2b4950c76fe618c409d2c3ea5a3c9422013e079482d78544bb2d184c"
 dependencies = [
- "leb128",
+ "leb128fmt",
  "wasmparser",
 ]
 
 [[package]]
 name = "wasm-metadata"
-version = "0.215.0"
+version = "0.239.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c6bb07c5576b608f7a2a9baa2294c1a3584a249965d695a9814a496cb6d232f"
+checksum = "20b3ec880a9ac69ccd92fbdbcf46ee833071cf09f82bb005b2327c7ae6025ae2"
 dependencies = [
  "anyhow",
  "indexmap",
- "serde",
- "serde_derive",
- "serde_json",
- "spdx",
  "wasm-encoder",
  "wasmparser",
 ]
 
 [[package]]
 name = "wasmparser"
-version = "0.215.0"
+version = "0.239.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53fbde0881f24199b81cf49b6ff8f9c145ac8eb1b7fc439adb5c099734f7d90e"
+checksum = "8c9d90bb93e764f6beabf1d02028c70a2156a6583e63ac4218dd07ef733368b0"
 dependencies = [
- "ahash",
  "bitflags",
- "hashbrown 0.14.5",
+ "hashbrown 0.15.5",
  "indexmap",
  "semver",
 ]
 
 [[package]]
 name = "wit-bindgen"
-version = "0.30.0"
+version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b4bac478334a647374ff24a74b66737a4cb586dc8288bc3080a93252cd1105c"
+checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
 dependencies = [
- "wit-bindgen-rt",
+ "bitflags",
+ "futures",
+ "once_cell",
  "wit-bindgen-rust-macro",
 ]
 
 [[package]]
 name = "wit-bindgen-core"
-version = "0.30.0"
+version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb7e3df01cd43cfa1cb52602e4fc05cb2b62217655f6705639b6953eb0a3fed2"
+checksum = "cabd629f94da277abc739c71353397046401518efb2c707669f805205f0b9890"
 dependencies = [
  "anyhow",
  "heck",
  "wit-parser",
 ]
 
-[[package]]
-name = "wit-bindgen-rt"
-version = "0.30.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2de7a3b06b9725d129b5cbd1beca968feed919c433305a23da46843185ecdd6"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "wit-bindgen-rust"
-version = "0.30.0"
+version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61a767d1a8eb4e908bfc53febc48b87ada545703b16fe0148ee7736a29a01417"
+checksum = "9a4232e841089fa5f3c4fc732a92e1c74e1a3958db3b12f1de5934da2027f1f4"
 dependencies = [
  "anyhow",
  "heck",
@@ -460,9 +477,9 @@ dependencies = [
 
 [[package]]
 name = "wit-bindgen-rust-macro"
-version = "0.30.0"
+version = "0.46.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b185c342d0d27bd83d4080f5a66cf3b4f247fa49d679bceb66e11cc7eb58b99"
+checksum = "1e0d4698c2913d8d9c2b220d116409c3f51a7aa8d7765151b886918367179ee9"
 dependencies = [
  "anyhow",
  "prettyplease",
@@ -475,9 +492,9 @@ dependencies = [
 
 [[package]]
 name = "wit-component"
-version = "0.215.0"
+version = "0.239.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f725e3885fc5890648be5c5cbc1353b755dc932aa5f1aa7de968b912a3280743"
+checksum = "88a866b19dba2c94d706ec58c92a4c62ab63e482b4c935d2a085ac94caecb136"
 dependencies = [
  "anyhow",
  "bitflags",
@@ -494,9 +511,9 @@ dependencies = [
 
 [[package]]
 name = "wit-parser"
-version = "0.215.0"
+version = "0.239.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "935a97eaffd57c3b413aa510f8f0b550a4a9fe7d59e79cd8b89a83dcb860321f"
+checksum = "55c92c939d667b7bf0c6bf2d1f67196529758f99a2a45a3355cc56964fd5315d"
 dependencies = [
  "anyhow",
  "id-arena",
@@ -510,26 +527,6 @@ dependencies = [
  "wasmparser",
 ]
 
-[[package]]
-name = "zerocopy"
-version = "0.8.48"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eed437bf9d6692032087e337407a86f04cd8d6a16a37199ed57949d415bd68e9"
-dependencies = [
- "zerocopy-derive",
-]
-
-[[package]]
-name = "zerocopy-derive"
-version = "0.8.48"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70e3cd084b1788766f53af483dd21f93881ff30d7320490ec3ef7526d203bad4"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "zmij"
 version = "1.0.21"
diff --git a/examples/cdn/key_value/src/lib.rs b/examples/cdn/key_value/src/lib.rs
index 0a5bac4..5d2203a 100644
--- a/examples/cdn/key_value/src/lib.rs
+++ b/examples/cdn/key_value/src/lib.rs
@@ -104,9 +104,7 @@ impl HttpContext for KvStoreContext {
             }
         };
 
-        if let Err(e) = self.set_http_response_body(0, body_size, body.as_bytes()) {
-            proxy_wasm::hostcalls::log(LogLevel::Error, &format!("failed to set body: {:?}", e)).ok();
-        }
+        self.set_http_response_body(0, body_size, body.as_bytes());
 
         Action::Continue
     }
@@ -231,6 +229,6 @@ impl KvStoreContext {
             Some(b"500"),
         );
         let error_body = json!({"error": msg}).to_string();
-        self.set_http_response_body(0, body_size, error_body.as_bytes()).ok();
+        self.set_http_response_body(0, body_size, error_body.as_bytes());
     }
 }