diff --git a/Cargo.toml b/Cargo.toml
index 1024dd6..cb49e32 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ resolver = "3"
 [workspace.package]
 # TODO: idk how to do the name, fix later
 # name = "komp_ac"
-version = "0.8.26"
+version = "0.8.27"
 edition = "2024"
 license = "GPL-3.0-or-later"
 authors = ["Filip Priečinský <filippriec@gmail.com>"]
diff --git a/client b/client
index a0695c0..f045b8f 160000
--- a/client
+++ b/client
@@ -1 +1 @@
-Subproject commit a0695c0d27c97c4f6215c6431239002ffda8e35b
+Subproject commit f045b8fa8eb65797b929f951bb255464bc553666
diff --git a/common/build.rs b/common/build.rs
index a58bd0d..5c2f890 100644
--- a/common/build.rs
+++ b/common/build.rs
@@ -216,6 +216,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         .compile_protos(
             &[
                 "proto/common.proto",
+                "proto/currency_conversion.proto",
                 "proto/document_data.proto",
                 "proto/adresar.proto",
                 "proto/analytics.proto",
@@ -242,6 +243,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
     println!("cargo:rerun-if-changed=build.rs");
     for proto in [
         "proto/common.proto",
+        "proto/currency_conversion.proto",
         "proto/document_data.proto",
         "proto/adresar.proto",
         "proto/analytics.proto",
diff --git a/common/proto/currency_conversion.proto b/common/proto/currency_conversion.proto
new file mode 100644
index 0000000..59222ff
--- /dev/null
+++ b/common/proto/currency_conversion.proto
@@ -0,0 +1,53 @@
+syntax = "proto3";
+package komp_ac.currency_conversion;
+
+service CurrencyConversion {
+  rpc ConvertCurrency(ConvertCurrencyRequest) returns (ConvertCurrencyResponse);
+  rpc ResolveRate(ResolveRateRequest) returns (ResolvedFxRate);
+  rpc ListRequiredCurrencies(ListRequiredCurrenciesRequest)
+      returns (ListRequiredCurrenciesResponse);
+}
+
+message ConvertCurrencyRequest {
+  string amount = 1;
+  string source_currency = 2;
+  string target_currency = 3;
+  string source = 4;
+  string as_of_date = 5;
+}
+
+message ResolveRateRequest {
+  string source_currency = 1;
+  string target_currency = 2;
+  string source = 3;
+  string as_of_date = 4;
+}
+
+message FxRateComponent {
+  string currency = 1;
+  string units_per_base = 2;
+}
+
+message ResolvedFxRate {
+  string source_currency = 1;
+  string target_currency = 2;
+  string rate = 3;
+  string effective_date = 4;
+  string source = 5;
+  int64 rate_set_id = 6;
+  int32 revision = 7;
+  string base_currency = 8;
+  repeated FxRateComponent components = 9;
+}
+
+message ConvertCurrencyResponse {
+  string amount = 1;
+  string currency = 2;
+  ResolvedFxRate resolved_rate = 3;
+}
+
+message ListRequiredCurrenciesRequest {}
+
+message ListRequiredCurrenciesResponse {
+  repeated string currencies = 1;
+}
diff --git a/common/proto/table_script.proto b/common/proto/table_script.proto
index 65d7d2c..fd795f0 100644
--- a/common/proto/table_script.proto
+++ b/common/proto/table_script.proto
@@ -63,9 +63,9 @@ service TableScript {
   //
   // The server derives the required inputs from stored script_dependencies;
   // callers do not choose arbitrary tables or columns. Direct related-column
-  // reads are grouped by related row, while related aggregates are evaluated
-  // through the analytics runtime. Returned values include logical type and
-  // currency metadata so the client can create correctly typed ScriptValues.
+  // reads and related aggregates are evaluated through SQLx in one read-only
+  // PostgreSQL snapshot. Returned values include logical type and currency
+  // metadata so the client can create correctly typed ScriptValues.
   //
   // Current-table column values are intentionally not returned. The client
   // supplies those directly from row_data so unsaved edits participate in
@@ -185,6 +185,14 @@ message ScriptDependency {
   string operation = 5;
   // Relationship table used to match the owner row to the related collection.
   string via_table = 6;
+  // Source currency for an fx_conversion dependency.
+  string from_currency = 7;
+  // Target currency for an fx_conversion dependency.
+  string to_currency = 8;
+  // Persisted exchange-rate provider/source identifier.
+  string source = 9;
+  // Requested YYYY-MM-DD date, or empty for the latest stored snapshot.
+  string as_of_date = 10;
 }
 
 // Identifies the active form row whose external Steel inputs must be hydrated.
@@ -243,4 +251,18 @@ message HydrateScriptDependenciesResponse {
   repeated HydratedColumnValue columns = 1;
   // Exact related aggregate inputs declared by stored scripts.
   repeated HydratedAggregateValue aggregates = 2;
+  // Exact resolved rates declared by the table's stored scripts.
+  repeated HydratedFxRate fx_rates = 3;
+}
+
+message HydratedFxRate {
+  string from_currency = 1;
+  string to_currency = 2;
+  string source = 3;
+  string requested_as_of_date = 4;
+  string rate = 5;
+  string effective_date = 6;
+  int64 rate_set_id = 7;
+  int32 revision = 8;
+  string base_currency = 9;
 }
diff --git a/common/src/lib.rs b/common/src/lib.rs
index edba9b1..b975297 100644
--- a/common/src/lib.rs
+++ b/common/src/lib.rs
@@ -20,6 +20,9 @@ pub mod proto {
         pub mod common {
             include!("proto/komp_ac.common.rs");
         }
+        pub mod currency_conversion {
+            include!("proto/komp_ac.currency_conversion.rs");
+        }
         pub mod document_data {
             include!("proto/komp_ac.document_data.rs");
         }
diff --git a/common/src/proto/descriptor.bin b/common/src/proto/descriptor.bin
index 2f815c0..a78b801 100644
Binary files a/common/src/proto/descriptor.bin and b/common/src/proto/descriptor.bin differ
diff --git a/common/src/proto/komp_ac.currency_conversion.rs b/common/src/proto/komp_ac.currency_conversion.rs
new file mode 100644
index 0000000..08896f2
--- /dev/null
+++ b/common/src/proto/komp_ac.currency_conversion.rs
@@ -0,0 +1,535 @@
+// This file is @generated by prost-build.
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct ConvertCurrencyRequest {
+    #[prost(string, tag = "1")]
+    pub amount: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub source_currency: ::prost::alloc::string::String,
+    #[prost(string, tag = "3")]
+    pub target_currency: ::prost::alloc::string::String,
+    #[prost(string, tag = "4")]
+    pub source: ::prost::alloc::string::String,
+    #[prost(string, tag = "5")]
+    pub as_of_date: ::prost::alloc::string::String,
+}
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct ResolveRateRequest {
+    #[prost(string, tag = "1")]
+    pub source_currency: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub target_currency: ::prost::alloc::string::String,
+    #[prost(string, tag = "3")]
+    pub source: ::prost::alloc::string::String,
+    #[prost(string, tag = "4")]
+    pub as_of_date: ::prost::alloc::string::String,
+}
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct FxRateComponent {
+    #[prost(string, tag = "1")]
+    pub currency: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub units_per_base: ::prost::alloc::string::String,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ResolvedFxRate {
+    #[prost(string, tag = "1")]
+    pub source_currency: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub target_currency: ::prost::alloc::string::String,
+    #[prost(string, tag = "3")]
+    pub rate: ::prost::alloc::string::String,
+    #[prost(string, tag = "4")]
+    pub effective_date: ::prost::alloc::string::String,
+    #[prost(string, tag = "5")]
+    pub source: ::prost::alloc::string::String,
+    #[prost(int64, tag = "6")]
+    pub rate_set_id: i64,
+    #[prost(int32, tag = "7")]
+    pub revision: i32,
+    #[prost(string, tag = "8")]
+    pub base_currency: ::prost::alloc::string::String,
+    #[prost(message, repeated, tag = "9")]
+    pub components: ::prost::alloc::vec::Vec<FxRateComponent>,
+}
+#[derive(Clone, PartialEq, ::prost::Message)]
+pub struct ConvertCurrencyResponse {
+    #[prost(string, tag = "1")]
+    pub amount: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub currency: ::prost::alloc::string::String,
+    #[prost(message, optional, tag = "3")]
+    pub resolved_rate: ::core::option::Option<ResolvedFxRate>,
+}
+#[derive(Clone, Copy, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct ListRequiredCurrenciesRequest {}
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct ListRequiredCurrenciesResponse {
+    #[prost(string, repeated, tag = "1")]
+    pub currencies: ::prost::alloc::vec::Vec<::prost::alloc::string::String>,
+}
+/// Generated client implementations.
+pub mod currency_conversion_client {
+    #![allow(
+        unused_variables,
+        dead_code,
+        missing_docs,
+        clippy::wildcard_imports,
+        clippy::let_unit_value,
+    )]
+    use tonic::codegen::*;
+    use tonic::codegen::http::Uri;
+    #[derive(Debug, Clone)]
+    pub struct CurrencyConversionClient<T> {
+        inner: tonic::client::Grpc<T>,
+    }
+    impl CurrencyConversionClient<tonic::transport::Channel> {
+        /// Attempt to create a new client by connecting to a given endpoint.
+        pub async fn connect<D>(dst: D) -> Result<Self, tonic::transport::Error>
+        where
+            D: TryInto<tonic::transport::Endpoint>,
+            D::Error: Into<StdError>,
+        {
+            let conn = tonic::transport::Endpoint::new(dst)?.connect().await?;
+            Ok(Self::new(conn))
+        }
+    }
+    impl<T> CurrencyConversionClient<T>
+    where
+        T: tonic::client::GrpcService<tonic::body::Body>,
+        T::Error: Into<StdError>,
+        T::ResponseBody: Body<Data = Bytes> + std::marker::Send + 'static,
+        <T::ResponseBody as Body>::Error: Into<StdError> + std::marker::Send,
+    {
+        pub fn new(inner: T) -> Self {
+            let inner = tonic::client::Grpc::new(inner);
+            Self { inner }
+        }
+        pub fn with_origin(inner: T, origin: Uri) -> Self {
+            let inner = tonic::client::Grpc::with_origin(inner, origin);
+            Self { inner }
+        }
+        pub fn with_interceptor<F>(
+            inner: T,
+            interceptor: F,
+        ) -> CurrencyConversionClient<InterceptedService<T, F>>
+        where
+            F: tonic::service::Interceptor,
+            T::ResponseBody: Default,
+            T: tonic::codegen::Service<
+                http::Request<tonic::body::Body>,
+                Response = http::Response<
+                    <T as tonic::client::GrpcService<tonic::body::Body>>::ResponseBody,
+                >,
+            >,
+            <T as tonic::codegen::Service<
+                http::Request<tonic::body::Body>,
+            >>::Error: Into<StdError> + std::marker::Send + std::marker::Sync,
+        {
+            CurrencyConversionClient::new(InterceptedService::new(inner, interceptor))
+        }
+        /// Compress requests with the given encoding.
+        ///
+        /// This requires the server to support it otherwise it might respond with an
+        /// error.
+        #[must_use]
+        pub fn send_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.send_compressed(encoding);
+            self
+        }
+        /// Enable decompressing responses.
+        #[must_use]
+        pub fn accept_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.inner = self.inner.accept_compressed(encoding);
+            self
+        }
+        /// Limits the maximum size of a decoded message.
+        ///
+        /// Default: `4MB`
+        #[must_use]
+        pub fn max_decoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_decoding_message_size(limit);
+            self
+        }
+        /// Limits the maximum size of an encoded message.
+        ///
+        /// Default: `usize::MAX`
+        #[must_use]
+        pub fn max_encoding_message_size(mut self, limit: usize) -> Self {
+            self.inner = self.inner.max_encoding_message_size(limit);
+            self
+        }
+        pub async fn convert_currency(
+            &mut self,
+            request: impl tonic::IntoRequest<super::ConvertCurrencyRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ConvertCurrencyResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic_prost::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.currency_conversion.CurrencyConversion/ConvertCurrency",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.currency_conversion.CurrencyConversion",
+                        "ConvertCurrency",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
+        pub async fn resolve_rate(
+            &mut self,
+            request: impl tonic::IntoRequest<super::ResolveRateRequest>,
+        ) -> std::result::Result<tonic::Response<super::ResolvedFxRate>, tonic::Status> {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic_prost::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.currency_conversion.CurrencyConversion/ResolveRate",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.currency_conversion.CurrencyConversion",
+                        "ResolveRate",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
+        pub async fn list_required_currencies(
+            &mut self,
+            request: impl tonic::IntoRequest<super::ListRequiredCurrenciesRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ListRequiredCurrenciesResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic_prost::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.currency_conversion.CurrencyConversion/ListRequiredCurrencies",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.currency_conversion.CurrencyConversion",
+                        "ListRequiredCurrencies",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
+    }
+}
+/// Generated server implementations.
+pub mod currency_conversion_server {
+    #![allow(
+        unused_variables,
+        dead_code,
+        missing_docs,
+        clippy::wildcard_imports,
+        clippy::let_unit_value,
+    )]
+    use tonic::codegen::*;
+    /// Generated trait containing gRPC methods that should be implemented for use with CurrencyConversionServer.
+    #[async_trait]
+    pub trait CurrencyConversion: std::marker::Send + std::marker::Sync + 'static {
+        async fn convert_currency(
+            &self,
+            request: tonic::Request<super::ConvertCurrencyRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ConvertCurrencyResponse>,
+            tonic::Status,
+        >;
+        async fn resolve_rate(
+            &self,
+            request: tonic::Request<super::ResolveRateRequest>,
+        ) -> std::result::Result<tonic::Response<super::ResolvedFxRate>, tonic::Status>;
+        async fn list_required_currencies(
+            &self,
+            request: tonic::Request<super::ListRequiredCurrenciesRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::ListRequiredCurrenciesResponse>,
+            tonic::Status,
+        >;
+    }
+    #[derive(Debug)]
+    pub struct CurrencyConversionServer<T> {
+        inner: Arc<T>,
+        accept_compression_encodings: EnabledCompressionEncodings,
+        send_compression_encodings: EnabledCompressionEncodings,
+        max_decoding_message_size: Option<usize>,
+        max_encoding_message_size: Option<usize>,
+    }
+    impl<T> CurrencyConversionServer<T> {
+        pub fn new(inner: T) -> Self {
+            Self::from_arc(Arc::new(inner))
+        }
+        pub fn from_arc(inner: Arc<T>) -> Self {
+            Self {
+                inner,
+                accept_compression_encodings: Default::default(),
+                send_compression_encodings: Default::default(),
+                max_decoding_message_size: None,
+                max_encoding_message_size: None,
+            }
+        }
+        pub fn with_interceptor<F>(
+            inner: T,
+            interceptor: F,
+        ) -> InterceptedService<Self, F>
+        where
+            F: tonic::service::Interceptor,
+        {
+            InterceptedService::new(Self::new(inner), interceptor)
+        }
+        /// Enable decompressing requests with the given encoding.
+        #[must_use]
+        pub fn accept_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.accept_compression_encodings.enable(encoding);
+            self
+        }
+        /// Compress responses with the given encoding, if the client supports it.
+        #[must_use]
+        pub fn send_compressed(mut self, encoding: CompressionEncoding) -> Self {
+            self.send_compression_encodings.enable(encoding);
+            self
+        }
+        /// Limits the maximum size of a decoded message.
+        ///
+        /// Default: `4MB`
+        #[must_use]
+        pub fn max_decoding_message_size(mut self, limit: usize) -> Self {
+            self.max_decoding_message_size = Some(limit);
+            self
+        }
+        /// Limits the maximum size of an encoded message.
+        ///
+        /// Default: `usize::MAX`
+        #[must_use]
+        pub fn max_encoding_message_size(mut self, limit: usize) -> Self {
+            self.max_encoding_message_size = Some(limit);
+            self
+        }
+    }
+    impl<T, B> tonic::codegen::Service<http::Request<B>> for CurrencyConversionServer<T>
+    where
+        T: CurrencyConversion,
+        B: Body + std::marker::Send + 'static,
+        B::Error: Into<StdError> + std::marker::Send + 'static,
+    {
+        type Response = http::Response<tonic::body::Body>;
+        type Error = std::convert::Infallible;
+        type Future = BoxFuture<Self::Response, Self::Error>;
+        fn poll_ready(
+            &mut self,
+            _cx: &mut Context<'_>,
+        ) -> Poll<std::result::Result<(), Self::Error>> {
+            Poll::Ready(Ok(()))
+        }
+        fn call(&mut self, req: http::Request<B>) -> Self::Future {
+            match req.uri().path() {
+                "/komp_ac.currency_conversion.CurrencyConversion/ConvertCurrency" => {
+                    #[allow(non_camel_case_types)]
+                    struct ConvertCurrencySvc<T: CurrencyConversion>(pub Arc<T>);
+                    impl<
+                        T: CurrencyConversion,
+                    > tonic::server::UnaryService<super::ConvertCurrencyRequest>
+                    for ConvertCurrencySvc<T> {
+                        type Response = super::ConvertCurrencyResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::ConvertCurrencyRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as CurrencyConversion>::convert_currency(&inner, request)
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = ConvertCurrencySvc(inner);
+                        let codec = tonic_prost::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/komp_ac.currency_conversion.CurrencyConversion/ResolveRate" => {
+                    #[allow(non_camel_case_types)]
+                    struct ResolveRateSvc<T: CurrencyConversion>(pub Arc<T>);
+                    impl<
+                        T: CurrencyConversion,
+                    > tonic::server::UnaryService<super::ResolveRateRequest>
+                    for ResolveRateSvc<T> {
+                        type Response = super::ResolvedFxRate;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::ResolveRateRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as CurrencyConversion>::resolve_rate(&inner, request)
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = ResolveRateSvc(inner);
+                        let codec = tonic_prost::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                "/komp_ac.currency_conversion.CurrencyConversion/ListRequiredCurrencies" => {
+                    #[allow(non_camel_case_types)]
+                    struct ListRequiredCurrenciesSvc<T: CurrencyConversion>(pub Arc<T>);
+                    impl<
+                        T: CurrencyConversion,
+                    > tonic::server::UnaryService<super::ListRequiredCurrenciesRequest>
+                    for ListRequiredCurrenciesSvc<T> {
+                        type Response = super::ListRequiredCurrenciesResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<super::ListRequiredCurrenciesRequest>,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as CurrencyConversion>::list_required_currencies(
+                                        &inner,
+                                        request,
+                                    )
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = ListRequiredCurrenciesSvc(inner);
+                        let codec = tonic_prost::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
+                _ => {
+                    Box::pin(async move {
+                        let mut response = http::Response::new(
+                            tonic::body::Body::default(),
+                        );
+                        let headers = response.headers_mut();
+                        headers
+                            .insert(
+                                tonic::Status::GRPC_STATUS,
+                                (tonic::Code::Unimplemented as i32).into(),
+                            );
+                        headers
+                            .insert(
+                                http::header::CONTENT_TYPE,
+                                tonic::metadata::GRPC_CONTENT_TYPE,
+                            );
+                        Ok(response)
+                    })
+                }
+            }
+        }
+    }
+    impl<T> Clone for CurrencyConversionServer<T> {
+        fn clone(&self) -> Self {
+            let inner = self.inner.clone();
+            Self {
+                inner,
+                accept_compression_encodings: self.accept_compression_encodings,
+                send_compression_encodings: self.send_compression_encodings,
+                max_decoding_message_size: self.max_decoding_message_size,
+                max_encoding_message_size: self.max_encoding_message_size,
+            }
+        }
+    }
+    /// Generated gRPC service name
+    pub const SERVICE_NAME: &str = "komp_ac.currency_conversion.CurrencyConversion";
+    impl<T> tonic::server::NamedService for CurrencyConversionServer<T> {
+        const NAME: &'static str = SERVICE_NAME;
+    }
+}
diff --git a/common/src/proto/komp_ac.table_script.rs b/common/src/proto/komp_ac.table_script.rs
index de0b87b..6e30b98 100644
--- a/common/src/proto/komp_ac.table_script.rs
+++ b/common/src/proto/komp_ac.table_script.rs
@@ -133,6 +133,18 @@ pub struct ScriptDependency {
     /// Relationship table used to match the owner row to the related collection.
     #[prost(string, tag = "6")]
     pub via_table: ::prost::alloc::string::String,
+    /// Source currency for an fx_conversion dependency.
+    #[prost(string, tag = "7")]
+    pub from_currency: ::prost::alloc::string::String,
+    /// Target currency for an fx_conversion dependency.
+    #[prost(string, tag = "8")]
+    pub to_currency: ::prost::alloc::string::String,
+    /// Persisted exchange-rate provider/source identifier.
+    #[prost(string, tag = "9")]
+    pub source: ::prost::alloc::string::String,
+    /// Requested YYYY-MM-DD date, or empty for the latest stored snapshot.
+    #[prost(string, tag = "10")]
+    pub as_of_date: ::prost::alloc::string::String,
 }
 /// Identifies the active form row whose external Steel inputs must be hydrated.
 #[derive(Clone, PartialEq, ::prost::Message)]
@@ -213,6 +225,30 @@ pub struct HydrateScriptDependenciesResponse {
     /// Exact related aggregate inputs declared by stored scripts.
     #[prost(message, repeated, tag = "2")]
     pub aggregates: ::prost::alloc::vec::Vec<HydratedAggregateValue>,
+    /// Exact resolved rates declared by the table's stored scripts.
+    #[prost(message, repeated, tag = "3")]
+    pub fx_rates: ::prost::alloc::vec::Vec<HydratedFxRate>,
+}
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct HydratedFxRate {
+    #[prost(string, tag = "1")]
+    pub from_currency: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub to_currency: ::prost::alloc::string::String,
+    #[prost(string, tag = "3")]
+    pub source: ::prost::alloc::string::String,
+    #[prost(string, tag = "4")]
+    pub requested_as_of_date: ::prost::alloc::string::String,
+    #[prost(string, tag = "5")]
+    pub rate: ::prost::alloc::string::String,
+    #[prost(string, tag = "6")]
+    pub effective_date: ::prost::alloc::string::String,
+    #[prost(int64, tag = "7")]
+    pub rate_set_id: i64,
+    #[prost(int32, tag = "8")]
+    pub revision: i32,
+    #[prost(string, tag = "9")]
+    pub base_currency: ::prost::alloc::string::String,
 }
 /// Generated client implementations.
 pub mod table_script_client {
@@ -423,9 +459,9 @@ pub mod table_script_client {
         ///
         /// The server derives the required inputs from stored script_dependencies;
         /// callers do not choose arbitrary tables or columns. Direct related-column
-        /// reads are grouped by related row, while related aggregates are evaluated
-        /// through the analytics runtime. Returned values include logical type and
-        /// currency metadata so the client can create correctly typed ScriptValues.
+        /// reads and related aggregates are evaluated through SQLx in one read-only
+        /// PostgreSQL snapshot. Returned values include logical type and currency
+        /// metadata so the client can create correctly typed ScriptValues.
         ///
         /// Current-table column values are intentionally not returned. The client
         /// supplies those directly from row_data so unsaved edits participate in
@@ -526,9 +562,9 @@ pub mod table_script_server {
         ///
         /// The server derives the required inputs from stored script_dependencies;
         /// callers do not choose arbitrary tables or columns. Direct related-column
-        /// reads are grouped by related row, while related aggregates are evaluated
-        /// through the analytics runtime. Returned values include logical type and
-        /// currency metadata so the client can create correctly typed ScriptValues.
+        /// reads and related aggregates are evaluated through SQLx in one read-only
+        /// PostgreSQL snapshot. Returned values include logical type and currency
+        /// metadata so the client can create correctly typed ScriptValues.
         ///
         /// Current-table column values are intentionally not returned. The client
         /// supplies those directly from row_data so unsaved edits participate in
diff --git a/server b/server
index 8a9306c..fb2cecc 160000
--- a/server
+++ b/server
@@ -1 +1 @@
-Subproject commit 8a9306cd000990ba3dda5daaf63d84ad776ecf4a
+Subproject commit fb2cecc1397e04477582310fd5b5afdaf6b249da