diff --git a/.circleci/config.yml b/.circleci/config.yml
index b1cb18cd7b..a41379c0b4 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -79,6 +79,7 @@ workflows:
       - contract_crypto_verify
       - contract_cyberpunk
       - contract_empty
+      - contract_eureka
       - contract_replier
       # - contract_floaty # This contract needs nightly Rust to compile
       - contract_hackatom
@@ -168,6 +169,10 @@ jobs:
           name: "contracts/hackatom: integration-test"
           working_directory: ~/project/contracts/hackatom
           command: cargo wasm --locked && cargo integration-test --locked
+      - run:
+          name: "contracts/eureka: integration-test"
+          working_directory: ~/project/contracts/eureka
+          command: cargo wasm --locked && cargo integration-test --locked
       - run:
           name: "contracts/queue: integration-test"
           working_directory: ~/project/contracts/queue
@@ -222,6 +227,13 @@ jobs:
             - contracts/hackatom/target/wasm32-unknown-unknown/release/.fingerprint
             - contracts/hackatom/target/wasm32-unknown-unknown/release/build
             - contracts/hackatom/target/wasm32-unknown-unknown/release/deps
+            # eureka
+            - contracts/eureka/target/debug/.fingerprint
+            - contracts/eureka/target/debug/build
+            - contracts/eureka/target/debug/deps
+            - contracts/eureka/target/wasm32-unknown-unknown/release/.fingerprint
+            - contracts/eureka/target/wasm32-unknown-unknown/release/build
+            - contracts/eureka/target/wasm32-unknown-unknown/release/deps
             # queue
             - contracts/queue/target/debug/.fingerprint
             - contracts/queue/target/debug/build
@@ -682,6 +694,34 @@ jobs:
             - target/wasm32-unknown-unknown/release/deps
           key: cargocache-v2-contract_cyberpunk-rust:1.74-{{ checksum "Cargo.lock" }}
 
+  contract_eureka:
+    docker:
+      - image: rust:1.74
+    environment:
+      RUST_BACKTRACE: 1
+    working_directory: ~/cosmwasm/contracts/eureka
+    steps:
+      - checkout:
+          path: ~/cosmwasm
+      - run:
+          name: Version information
+          command: rustc --version; cargo --version; rustup --version
+      - restore_cache:
+          keys:
+            - cargocache-v2-contract_eureka-rust:1.74-{{ checksum "Cargo.lock" }}
+      - check_contract:
+          min_version: "2.2"
+      - save_cache:
+          paths:
+            - /usr/local/cargo/registry
+            - target/debug/.fingerprint
+            - target/debug/build
+            - target/debug/deps
+            - target/wasm32-unknown-unknown/release/.fingerprint
+            - target/wasm32-unknown-unknown/release/build
+            - target/wasm32-unknown-unknown/release/deps
+          key: cargocache-v2-contract_eureka-rust:1.74-{{ checksum "Cargo.lock" }}
+
   contract_hackatom:
     docker:
       - image: rust:1.74
diff --git a/.mergify.yml b/.mergify.yml
index 4895cfe743..63bca849c2 100644
--- a/.mergify.yml
+++ b/.mergify.yml
@@ -18,6 +18,7 @@ pull_request_rules:
       - "status-success=ci/circleci: contract_burner"
       - "status-success=ci/circleci: contract_crypto_verify"
       - "status-success=ci/circleci: contract_cyberpunk"
+      - "status-success=ci/circleci: contract_eureka"
       - "status-success=ci/circleci: contract_floaty"
       - "status-success=ci/circleci: contract_hackatom"
       - "status-success=ci/circleci: contract_hackatom"
diff --git a/contracts/README.md b/contracts/README.md
index 9600b5dbe5..82ef69a278 100644
--- a/contracts/README.md
+++ b/contracts/README.md
@@ -113,6 +113,11 @@ docker run --rm -v "$(pwd)":/code \
   --mount type=volume,source="devcontract_cache_empty",target=/target \
   --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
   cosmwasm/optimizer:0.15.0 ./contracts/empty
+
+docker run --rm -v "$(pwd)":/code \
+  --mount type=volume,source="devcontract_cache_eureka",target=/target \
+  --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
+  cosmwasm/optimizer:0.15.0 ./contracts/eureka
 ```
 
 ## Entry points
diff --git a/contracts/eureka/.cargo/config.toml b/contracts/eureka/.cargo/config.toml
new file mode 100644
index 0000000000..f5174787c2
--- /dev/null
+++ b/contracts/eureka/.cargo/config.toml
@@ -0,0 +1,6 @@
+[alias]
+wasm = "build --release --lib --target wasm32-unknown-unknown"
+wasm-debug = "build --lib --target wasm32-unknown-unknown"
+unit-test = "test --lib"
+integration-test = "test --test integration"
+schema = "run --bin schema"
diff --git a/contracts/eureka/Cargo.lock b/contracts/eureka/Cargo.lock
new file mode 100644
index 0000000000..707cb87659
--- /dev/null
+++ b/contracts/eureka/Cargo.lock
@@ -0,0 +1,1038 @@
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diff --git a/contracts/eureka/Cargo.toml b/contracts/eureka/Cargo.toml
new file mode 100644
index 0000000000..f6245def8b
--- /dev/null
+++ b/contracts/eureka/Cargo.toml
@@ -0,0 +1,28 @@
+[package]
+name = "eureka"
+version = "0.0.0"
+authors = ["Tomasz Kulik <tomek.k@confio.gmbh>"]
+edition = "2021"
+publish = false
+license = "Apache-2.0"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[profile.release]
+opt-level = 3
+debug = false
+rpath = false
+lto = true
+debug-assertions = false
+codegen-units = 1
+panic = 'abort'
+incremental = false
+overflow-checks = true
+
+[dependencies]
+cosmwasm-schema = { path = "../../packages/schema" }
+cosmwasm-std = { path = "../../packages/std", features = ["eureka"] }
+schemars = "0.8.3"
+serde = { version = "1.0.103", default-features = false, features = ["derive"] }
+thiserror = "1.0.26"
diff --git a/contracts/eureka/schema/eureka.json b/contracts/eureka/schema/eureka.json
new file mode 100644
index 0000000000..6849df3810
--- /dev/null
+++ b/contracts/eureka/schema/eureka.json
@@ -0,0 +1,17 @@
+{
+  "contract_name": "eureka",
+  "contract_version": "0.0.0",
+  "idl_version": "1.0.0",
+  "instantiate": {
+    "$schema": "http://json-schema.org/draft-07/schema#",
+    "title": "InstantiateMsg",
+    "description": "An empty struct that serves as a placeholder in different places, such as contracts that don't set a custom message.\n\nIt is designed to be expressible in correct JSON and JSON Schema but contains no meaningful data. Previously we used enums without cases, but those cannot represented as valid JSON Schema (https://github.com/CosmWasm/cosmwasm/issues/451)",
+    "type": "object",
+    "additionalProperties": false
+  },
+  "execute": null,
+  "query": null,
+  "migrate": null,
+  "sudo": null,
+  "responses": null
+}
diff --git a/contracts/eureka/schema/raw/instantiate.json b/contracts/eureka/schema/raw/instantiate.json
new file mode 100644
index 0000000000..e12a3fda12
--- /dev/null
+++ b/contracts/eureka/schema/raw/instantiate.json
@@ -0,0 +1,7 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "InstantiateMsg",
+  "description": "An empty struct that serves as a placeholder in different places, such as contracts that don't set a custom message.\n\nIt is designed to be expressible in correct JSON and JSON Schema but contains no meaningful data. Previously we used enums without cases, but those cannot represented as valid JSON Schema (https://github.com/CosmWasm/cosmwasm/issues/451)",
+  "type": "object",
+  "additionalProperties": false
+}
diff --git a/contracts/eureka/src/bin/schema.rs b/contracts/eureka/src/bin/schema.rs
new file mode 100644
index 0000000000..d2c0d75fd5
--- /dev/null
+++ b/contracts/eureka/src/bin/schema.rs
@@ -0,0 +1,8 @@
+use cosmwasm_schema::write_api;
+use cosmwasm_std::Empty;
+
+fn main() {
+    write_api! {
+        instantiate: Empty,
+    }
+}
diff --git a/contracts/eureka/src/contract.rs b/contracts/eureka/src/contract.rs
new file mode 100644
index 0000000000..428cff1e40
--- /dev/null
+++ b/contracts/eureka/src/contract.rs
@@ -0,0 +1,23 @@
+use cosmwasm_std::{
+    entry_point, DepsMut, Empty, Env, EurekaPacketReceiveMsg, IbcReceiveResponse, MessageInfo,
+    Response, StdResult,
+};
+
+#[entry_point]
+pub fn instantiate(
+    _deps: DepsMut,
+    _env: Env,
+    _info: MessageInfo,
+    _msg: Empty,
+) -> StdResult<Response> {
+    Ok(Response::new())
+}
+
+#[entry_point]
+pub fn eu_packet_receive(
+    _deps: DepsMut,
+    _env: Env,
+    _msg: EurekaPacketReceiveMsg,
+) -> StdResult<IbcReceiveResponse> {
+    Ok(IbcReceiveResponse::without_ack())
+}
diff --git a/contracts/eureka/src/lib.rs b/contracts/eureka/src/lib.rs
new file mode 100644
index 0000000000..2943dbb509
--- /dev/null
+++ b/contracts/eureka/src/lib.rs
@@ -0,0 +1 @@
+pub mod contract;
diff --git a/contracts/eureka/tests/integration.rs b/contracts/eureka/tests/integration.rs
new file mode 100644
index 0000000000..8b13789179
--- /dev/null
+++ b/contracts/eureka/tests/integration.rs
@@ -0,0 +1 @@
+
diff --git a/packages/check/src/main.rs b/packages/check/src/main.rs
index e211a405b5..027aecfede 100644
--- a/packages/check/src/main.rs
+++ b/packages/check/src/main.rs
@@ -14,7 +14,7 @@ use cosmwasm_vm::internals::{check_wasm, compile, make_compiling_engine, LogOutp
 use cosmwasm_vm::{capabilities_from_csv, WasmLimits};
 
 const DEFAULT_AVAILABLE_CAPABILITIES: &str =
-    "iterator,staking,stargate,cosmwasm_1_1,cosmwasm_1_2,cosmwasm_1_3,cosmwasm_1_4,cosmwasm_2_0,cosmwasm_2_1,cosmwasm_2_2";
+    "eureka,iterator,staking,stargate,cosmwasm_1_1,cosmwasm_1_2,cosmwasm_1_3,cosmwasm_1_4,cosmwasm_2_0,cosmwasm_2_1,cosmwasm_2_2";
 
 pub fn main() {
     let matches = Command::new("Contract checking")
diff --git a/packages/std/Cargo.toml b/packages/std/Cargo.toml
index d357b01d0e..bdeac674c8 100644
--- a/packages/std/Cargo.toml
+++ b/packages/std/Cargo.toml
@@ -29,7 +29,7 @@ staking = []
 # stargate enables stargate-dependent messages and queries, like raw protobuf messages
 # as well as ibc-related functionality
 stargate = []
-# eureka enables eureka-dependent messages and queries
+# eureka enables eureka-dependent messages, entrypoints and queries
 eureka = []
 # This feature makes `BankQuery::Supply` available for the contract to call, but requires
 # the host blockchain to run CosmWasm `1.1.0` or higher.
diff --git a/packages/std/src/eureka.rs b/packages/std/src/eureka.rs
index 14c1e916e3..37fe91661b 100644
--- a/packages/std/src/eureka.rs
+++ b/packages/std/src/eureka.rs
@@ -1,7 +1,7 @@
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 
-use crate::{Binary, Timestamp};
+use crate::{Addr, Binary, Timestamp};
 
 /// Payload value should be encoded in a format defined by the channel version,
 /// and the module on the other side should know how to parse this.
@@ -33,6 +33,20 @@ pub enum EurekaMsg {
     },
 }
 
+/// The message that is passed into `eu_packet_receive`
+#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, Eq, JsonSchema)]
+#[non_exhaustive]
+pub struct EurekaPacketReceiveMsg {
+    pub packet: EurekaPayload,
+    pub relayer: Addr,
+}
+
+impl EurekaPacketReceiveMsg {
+    pub fn new(packet: EurekaPayload, relayer: Addr) -> Self {
+        Self { packet, relayer }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use serde_json::to_string;
diff --git a/packages/std/src/exports.rs b/packages/std/src/exports.rs
index 76d9a4367f..d097731363 100644
--- a/packages/std/src/exports.rs
+++ b/packages/std/src/exports.rs
@@ -13,11 +13,14 @@ use core::{marker::PhantomData, ptr};
 use serde::de::DeserializeOwned;
 
 use crate::deps::OwnedDeps;
+use crate::eureka::EurekaPacketReceiveMsg;
+#[cfg(any(feature = "stargate", feature = "eureka"))]
+use crate::ibc::IbcReceiveResponse;
 use crate::ibc::{IbcBasicResponse, IbcDestinationCallbackMsg, IbcSourceCallbackMsg};
 #[cfg(feature = "stargate")]
 use crate::ibc::{
     IbcChannelCloseMsg, IbcChannelConnectMsg, IbcPacketAckMsg, IbcPacketReceiveMsg,
-    IbcPacketTimeoutMsg, IbcReceiveResponse,
+    IbcPacketTimeoutMsg,
 };
 use crate::ibc::{IbcChannelOpenMsg, IbcChannelOpenResponse};
 use crate::imports::{ExternalApi, ExternalQuerier, ExternalStorage};
@@ -522,6 +525,38 @@ where
     Region::from_vec(v).to_heap_ptr() as u32
 }
 
+/// do_ibc_channel_close is designed for use with #[entry_point] to make a "C" extern
+///
+/// contract_fn is a callback when a IBC channel belonging to this contract is closed
+///
+/// - `Q`: custom query type (see QueryRequest)
+/// - `C`: custom response message type (see CosmosMsg)
+/// - `E`: error type for responses
+#[cfg(feature = "eureka")]
+pub fn do_eu_packet_receive<Q, C, E>(
+    contract_fn: &dyn Fn(
+        DepsMut<Q>,
+        Env,
+        EurekaPacketReceiveMsg,
+    ) -> Result<IbcReceiveResponse<C>, E>,
+    env_ptr: u32,
+    msg_ptr: u32,
+) -> u32
+where
+    Q: CustomQuery,
+    C: CustomMsg,
+    E: ToString,
+{
+    install_panic_handler();
+    let res = _do_eu_packet_receive(
+        contract_fn,
+        env_ptr as *mut Region<Owned>,
+        msg_ptr as *mut Region<Owned>,
+    );
+    let v = to_json_vec(&res).unwrap();
+    Region::from_vec(v).to_heap_ptr() as u32
+}
+
 fn _do_instantiate<Q, M, C, E>(
     instantiate_fn: &dyn Fn(DepsMut<Q>, Env, MessageInfo, M) -> Result<Response<C>, E>,
     env_ptr: *mut Region<Owned>,
@@ -889,3 +924,30 @@ where
         custom_query_type: PhantomData,
     }
 }
+
+#[cfg(feature = "eureka")]
+fn _do_eu_packet_receive<Q, C, E>(
+    contract_fn: &dyn Fn(
+        DepsMut<Q>,
+        Env,
+        EurekaPacketReceiveMsg,
+    ) -> Result<IbcReceiveResponse<C>, E>,
+    env_ptr: *mut Region<Owned>,
+    msg_ptr: *mut Region<Owned>,
+) -> ContractResult<IbcReceiveResponse<C>>
+where
+    Q: CustomQuery,
+    C: CustomMsg,
+    E: ToString,
+{
+    let env: Vec<u8> =
+        unsafe { Region::from_heap_ptr(ptr::NonNull::new(env_ptr).unwrap()).into_vec() };
+    let msg: Vec<u8> =
+        unsafe { Region::from_heap_ptr(ptr::NonNull::new(msg_ptr).unwrap()).into_vec() };
+
+    let env: Env = try_into_contract_result!(from_json(env));
+    let msg: EurekaPacketReceiveMsg = try_into_contract_result!(from_json(msg));
+
+    let mut deps = make_dependencies();
+    contract_fn(deps.as_mut(), env, msg).into()
+}
diff --git a/packages/std/src/lib.rs b/packages/std/src/lib.rs
index b02cd1d565..d927f30df2 100644
--- a/packages/std/src/lib.rs
+++ b/packages/std/src/lib.rs
@@ -66,7 +66,7 @@ pub use crate::errors::{
     RecoverPubkeyError, RoundDownOverflowError, RoundUpOverflowError, StdError, StdResult,
     SystemError, VerificationError,
 };
-pub use crate::eureka::{EurekaMsg, EurekaPayload};
+pub use crate::eureka::{EurekaMsg, EurekaPacketReceiveMsg, EurekaPayload};
 pub use crate::hex_binary::HexBinary;
 pub use crate::ibc::IbcChannelOpenResponse;
 pub use crate::ibc::{
@@ -139,6 +139,8 @@ mod imports;
 #[cfg(target_arch = "wasm32")]
 mod memory; // Used by exports and imports only. This assumes pointers are 32 bit long, which makes it untestable on dev machines.
 
+#[cfg(all(feature = "eureka", target_arch = "wasm32"))]
+pub use crate::exports::do_eu_packet_receive;
 #[cfg(all(feature = "cosmwasm_2_2", target_arch = "wasm32"))]
 pub use crate::exports::do_migrate_with_info;
 #[cfg(target_arch = "wasm32")]
diff --git a/packages/vm/Cargo.toml b/packages/vm/Cargo.toml
index 845834abf0..b1790e153c 100644
--- a/packages/vm/Cargo.toml
+++ b/packages/vm/Cargo.toml
@@ -30,6 +30,8 @@ staking = ["cosmwasm-std/staking"]
 stargate = ["cosmwasm-std/stargate"]
 # For heap profiling. Only used in the "heap_profiling" example.
 dhat-heap = ["dep:dhat"]
+# eureka enables eureka-dependent messages, entrypoints and queries
+eureka = ["cosmwasm-std/eureka"]
 
 # Legacy no-op feature. This is kept for compatibility with older contracts.
 # Delete this with the next major release.
diff --git a/packages/vm/src/calls.rs b/packages/vm/src/calls.rs
index e2021c9ff0..0ee86f4b0d 100644
--- a/packages/vm/src/calls.rs
+++ b/packages/vm/src/calls.rs
@@ -11,6 +11,9 @@ use cosmwasm_std::{
     IbcPacketAckMsg, IbcPacketReceiveMsg, IbcPacketTimeoutMsg, IbcReceiveResponse,
 };
 
+#[cfg(feature = "eureka")]
+use cosmwasm_std::EurekaPayload;
+
 use crate::backend::{BackendApi, Querier, Storage};
 use crate::conversion::ref_to_u32;
 use crate::errors::{VmError, VmResult};
@@ -670,6 +673,26 @@ where
     )
 }
 
+#[cfg(feature = "eureka")]
+pub fn call_eu_packet_receive_raw<A, S, Q>(
+    instance: &mut Instance<A, S, Q>,
+    env: &[u8],
+    msg: &[u8],
+) -> VmResult<Vec<u8>>
+where
+    A: BackendApi + 'static,
+    S: Storage + 'static,
+    Q: Querier + 'static,
+{
+    instance.set_storage_readonly(false);
+    call_raw(
+        instance,
+        "eu_packet_receive",
+        &[env, msg],
+        read_limits::RESULT_IBC_PACKET_RECEIVE,
+    )
+}
+
 pub fn call_ibc_source_callback_raw<A, S, Q>(
     instance: &mut Instance<A, S, Q>,
     env: &[u8],
@@ -735,6 +758,25 @@ where
     Ok(data)
 }
 
+#[cfg(feature = "eureka")]
+pub fn call_eu_packet_receive<A, S, Q>(
+    instance: &mut Instance<A, S, Q>,
+    env: &Env,
+    msg: &EurekaPayload,
+) -> VmResult<ContractResult<Option<IbcReceiveResponse>>>
+where
+    A: BackendApi + 'static,
+    S: Storage + 'static,
+    Q: Querier + 'static,
+{
+    let env = to_vec(env)?;
+    let msg = to_vec(msg)?;
+    let data = call_eu_packet_receive_raw(instance, &env, &msg)?;
+    let result: ContractResult<Option<IbcReceiveResponse>> =
+        from_slice(&data, deserialization_limits::RESULT_IBC_CHANNEL_OPEN)?;
+    Ok(result)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;
diff --git a/packages/vm/src/lib.rs b/packages/vm/src/lib.rs
index e67ea78c8f..c06ef18935 100644
--- a/packages/vm/src/lib.rs
+++ b/packages/vm/src/lib.rs
@@ -25,6 +25,8 @@ pub use crate::backend::{
     Backend, BackendApi, BackendError, BackendResult, GasInfo, Querier, Storage,
 };
 pub use crate::cache::{AnalysisReport, Cache, Metrics, PerModuleMetrics, PinnedMetrics, Stats};
+#[cfg(feature = "eureka")]
+pub use crate::calls::{call_eu_packet_receive, call_eu_packet_receive_raw};
 pub use crate::calls::{
     call_execute, call_execute_raw, call_ibc_destination_callback,
     call_ibc_destination_callback_raw, call_ibc_source_callback, call_ibc_source_callback_raw,
diff --git a/packages/vm/src/static_analysis.rs b/packages/vm/src/static_analysis.rs
index f56cbc52b2..5c91107116 100644
--- a/packages/vm/src/static_analysis.rs
+++ b/packages/vm/src/static_analysis.rs
@@ -33,6 +33,8 @@ pub enum Entrypoint {
     IbcPacketAck,
     #[strum(serialize = "ibc_packet_timeout")]
     IbcPacketTimeout,
+    #[strum(serialize = "eu_packet_receive")]
+    EuPacketReceive,
 }
 
 // sort entrypoints by their &str representation