diff --git a/crates/xrpl-host-functions/src/lib.rs b/crates/xrpl-host-functions/src/lib.rs
index 22befeeb69..ff0b957f33 100644
--- a/crates/xrpl-host-functions/src/lib.rs
+++ b/crates/xrpl-host-functions/src/lib.rs
@@ -346,6 +346,13 @@ host_functions! {
         out: &mut [u8],
     ) -> HostResult<usize>;
 
+    /// The 32-byte keylet of an `Offer`, computed from the 20-byte owner account and
+    /// its sequence number. `seq` is the guest's `u32` carried as its `i32` bit
+    /// pattern. Reads the account region and writes the keylet.
+    #[gas = 350]
+    #[wasm_name = "offer_id"]
+    fn offer_keylet(&self, account: &[u8], seq: i32, out: &mut [u8]) -> HostResult<usize>;
+
     /// The XRPL `sha512Half` of `data`: the first [`HASH_LEN`] bytes of its SHA-512.
     #[gas = 2000]
     #[wasm_name = "sha512_half"]
diff --git a/crates/xrpl-host-functions/tests/generated_abi.rs b/crates/xrpl-host-functions/tests/generated_abi.rs
index 13300699c6..f51e862112 100644
--- a/crates/xrpl-host-functions/tests/generated_abi.rs
+++ b/crates/xrpl-host-functions/tests/generated_abi.rs
@@ -316,6 +316,14 @@ impl HostFunctions for FakeHost {
         put(out, &[account[0]; HASH_LEN])
     }
 
+    /// The same account-and-sequence shape, for an `Offer`.
+    fn offer_keylet(&self, account: &[u8], _seq: i32, out: &mut [u8]) -> HostResult<usize> {
+        if account.is_empty() {
+            return Err(HostError::InvalidAccount);
+        }
+        put(out, &[account[0]; HASH_LEN])
+    }
+
     fn sha512_half(&self, data: &[u8], out: &mut [u8]) -> HostResult<usize> {
         let mut digest = [0; HASH_LEN];
         digest[0] = data.len() as u8;
@@ -495,6 +503,12 @@ fn the_trait_is_implementable() {
         host.nftoken_offer_keylet(&[], 5, &mut out),
         Err(HostError::InvalidAccount)
     );
+    assert_eq!(host.offer_keylet(&[7; 20], 5, &mut out), Ok(HASH_LEN));
+    assert_eq!(out[0], 7);
+    assert_eq!(
+        host.offer_keylet(&[], 5, &mut out),
+        Err(HostError::InvalidAccount)
+    );
     assert_eq!(host.sha512_half(b"abc", &mut out), Ok(HASH_LEN));
     assert_eq!(out[0], 3);
     assert_eq!(host.trace("hello", b"xy", true), Ok(()));
@@ -593,6 +607,7 @@ fn the_spec_table_matches_the_declarations() {
             ("mpt_issuance_id", 350),
             ("mptoken_id", 500),
             ("nft_offer_id", 350),
+            ("offer_id", 350),
             ("sha512_half", 2000),
             ("trace", 500),
             ("trace_num", 500),
diff --git a/crates/xrpl-wasm-vm-ffi/src/lib.rs b/crates/xrpl-wasm-vm-ffi/src/lib.rs
index baff06d0a2..1c67fcee76 100644
--- a/crates/xrpl-wasm-vm-ffi/src/lib.rs
+++ b/crates/xrpl-wasm-vm-ffi/src/lib.rs
@@ -340,6 +340,10 @@ mod ffi {
             out: &mut [u8],
         ) -> i32;
 
+        #[namespace = "xrpl"]
+        #[cxx_name = "offerKeylet"]
+        fn offer_keylet(self: &HostContext, account: &[u8], seq: i32, out: &mut [u8]) -> i32;
+
         #[namespace = "xrpl"]
         #[cxx_name = "sha512Half"]
         fn sha512_half(self: &HostContext, data: &[u8], out: &mut [u8]) -> i32;
@@ -568,6 +572,10 @@ impl HostFunctions for CxxHost<'_> {
         bytes_written(self.ctx.nftoken_offer_keylet(account, seq, out))
     }
 
+    fn offer_keylet(&self, account: &[u8], seq: i32, out: &mut [u8]) -> HostResult<usize> {
+        bytes_written(self.ctx.offer_keylet(account, seq, out))
+    }
+
     fn sha512_half(&self, data: &[u8], out: &mut [u8]) -> HostResult<usize> {
         bytes_written(self.ctx.sha512_half(data, out))
     }
diff --git a/crates/xrpl-wasm-vm/src/abi.rs b/crates/xrpl-wasm-vm/src/abi.rs
index edfcecf4b2..1af16e33bb 100644
--- a/crates/xrpl-wasm-vm/src/abi.rs
+++ b/crates/xrpl-wasm-vm/src/abi.rs
@@ -338,6 +338,9 @@ mod tests {
         ) -> HostResult<usize> {
             unreachable!("no unit test in this module calls the host")
         }
+        fn offer_keylet(&self, _account: &[u8], _seq: i32, _out: &mut [u8]) -> HostResult<usize> {
+            unreachable!("no unit test in this module calls the host")
+        }
         fn sha512_half(&self, _data: &[u8], _out: &mut [u8]) -> HostResult<usize> {
             unreachable!("no unit test in this module calls the host")
         }
diff --git a/crates/xrpl-wasm-vm/src/register.rs b/crates/xrpl-wasm-vm/src/register.rs
index dcf38a865f..18f52f62c5 100644
--- a/crates/xrpl-wasm-vm/src/register.rs
+++ b/crates/xrpl-wasm-vm/src/register.rs
@@ -582,6 +582,25 @@ pub(crate) fn register_host_functions(
                     })
                 },
             ),
+            HostFunctionSpec::OfferKeylet => linker.func_wrap(
+                HOST_MODULE,
+                op.wasm_name(),
+                |mut caller: Caller<'_, VmState<'_>>,
+                 acc_ptr: i32,
+                 acc_len: i32,
+                 seq: i32,
+                 out_ptr: i32,
+                 out_len: i32|
+                 -> Result<i32, wasmi::Error> {
+                    charged(&mut caller, HostFunctionSpec::OfferKeylet, |c| {
+                        let out = Region::new(out_ptr, out_len);
+                        let account = Region::new(acc_ptr, acc_len);
+                        write_buffered(c, out, |host, data, buf| {
+                            host.offer_keylet(account.read(data)?, seq, buf)
+                        })
+                    })
+                },
+            ),
             HostFunctionSpec::Sha512Half => linker.func_wrap(
                 HOST_MODULE,
                 op.wasm_name(),
diff --git a/crates/xrpl-wasm-vm/tests/budgets.rs b/crates/xrpl-wasm-vm/tests/budgets.rs
index 6934a54892..bd1b372b18 100644
--- a/crates/xrpl-wasm-vm/tests/budgets.rs
+++ b/crates/xrpl-wasm-vm/tests/budgets.rs
@@ -204,6 +204,11 @@ fn call_for(op: HostFunctionSpec) -> Call {
             "(call $nft_offer_id (i32.const 0) (i32.const 20) (i32.const 5) (i32.const 32) (i32.const 32))",
             5,
         ),
+        HostFunctionSpec::OfferKeylet => (
+            import::OFFER_ID,
+            "(call $offer_id (i32.const 0) (i32.const 20) (i32.const 5) (i32.const 32) (i32.const 32))",
+            5,
+        ),
         HostFunctionSpec::Sha512Half => (
             import::SHA512_HALF,
             "(call $sha512_half (i32.const 0) (i32.const 4) (i32.const 0) (i32.const 32))",
diff --git a/crates/xrpl-wasm-vm/tests/host_calls.rs b/crates/xrpl-wasm-vm/tests/host_calls.rs
index ae806c914c..0e22a51cbc 100644
--- a/crates/xrpl-wasm-vm/tests/host_calls.rs
+++ b/crates/xrpl-wasm-vm/tests/host_calls.rs
@@ -627,6 +627,22 @@ fn nft_offer_id_reads_the_account_and_seq() {
     assert_eq!(*host.nft_offer_keylets_asked.borrow(), vec![(account, 5)]);
 }
 
+/// A third account-and-sequence keylet, distinct from the NFT-offer set, to pin the
+/// pattern rather than a single instance of it.
+#[test]
+fn offer_id_reads_the_account_and_seq() {
+    let account = vec![0u8; 20];
+    let host =
+        FakeHost::new().answering_offer_keylet(account.clone(), 5, support::Answer::filler(32));
+
+    let wat = module(
+        &[import::OFFER_ID, ONE_PAGE],
+        "(call $offer_id (i32.const 0) (i32.const 20) (i32.const 5) (i32.const 64) (i32.const 64))",
+    );
+    assert_eq!(status(&wat, &host), 32, "the 32-byte keylet length");
+    assert_eq!(*host.offer_keylets_asked.borrow(), vec![(account, 5)]);
+}
+
 /// A leading scalar parameter reaches the host as declared.
 #[test]
 fn home_le_field_passes_the_field_selector_through() {
diff --git a/crates/xrpl-wasm-vm/tests/preflight.rs b/crates/xrpl-wasm-vm/tests/preflight.rs
index dee98fac84..b4052fac3f 100644
--- a/crates/xrpl-wasm-vm/tests/preflight.rs
+++ b/crates/xrpl-wasm-vm/tests/preflight.rs
@@ -98,7 +98,7 @@ fn a_disabled_feature_does_not_pass() {
 
 /// Every host function the ABI declares, spelled as a guest imports it. The count
 /// is asserted against the ABI so a function added to it cannot be left out here.
-const ALL_IMPORTS: [&str; 34] = [
+const ALL_IMPORTS: [&str; 35] = [
     import::LDGR_INDEX,
     import::PARENT_LDGR_TIME,
     import::PARENT_LDGR_HASH,
@@ -130,6 +130,7 @@ const ALL_IMPORTS: [&str; 34] = [
     import::MPT_ISSUANCE_ID,
     import::MPTOKEN_ID,
     import::NFT_OFFER_ID,
+    import::OFFER_ID,
     import::SHA512_HALF,
     import::TRACE,
     import::TRACE_NUM,
diff --git a/crates/xrpl-wasm-vm/tests/support/mod.rs b/crates/xrpl-wasm-vm/tests/support/mod.rs
index 67415927e3..3d1ff8468c 100644
--- a/crates/xrpl-wasm-vm/tests/support/mod.rs
+++ b/crates/xrpl-wasm-vm/tests/support/mod.rs
@@ -239,6 +239,11 @@ pub struct FakeHost {
     pub nft_offer_keylets: HashMap<(Vec<u8>, i32), Answer>,
     /// Every (account, seq) `nftoken_offer_keylet` was asked for.
     pub nft_offer_keylets_asked: RefCell<Vec<(Vec<u8>, i32)>>,
+    /// What `offer_keylet` answers, by (account bytes, seq). An unlisted key
+    /// answers `InvalidAccount`.
+    pub offer_keylets: HashMap<(Vec<u8>, i32), Answer>,
+    /// Every (account, seq) `offer_keylet` was asked for.
+    pub offer_keylets_asked: RefCell<Vec<(Vec<u8>, i32)>>,
     /// What `sha512_half` answers, whatever it is given.
     pub digest: Answer,
     /// Every field selector `get_current_ledger_obj_field` was asked for.
@@ -317,6 +322,8 @@ impl Default for FakeHost {
             mptoken_keylets_asked: RefCell::new(Vec::new()),
             nft_offer_keylets: HashMap::new(),
             nft_offer_keylets_asked: RefCell::new(Vec::new()),
+            offer_keylets: HashMap::new(),
+            offer_keylets_asked: RefCell::new(Vec::new()),
             digest: Answer::filler(32),
             fields_asked: RefCell::new(Vec::new()),
             digested: RefCell::new(Vec::new()),
@@ -550,6 +557,16 @@ impl FakeHost {
         self
     }
 
+    pub fn answering_offer_keylet(
+        mut self,
+        account: Vec<u8>,
+        seq: i32,
+        answer: Answer,
+    ) -> FakeHost {
+        self.offer_keylets.insert((account, seq), answer);
+        self
+    }
+
     pub fn answering_digest(mut self, answer: Answer) -> FakeHost {
         self.digest = answer;
         self
@@ -857,6 +874,15 @@ impl HostFunctions for FakeHost {
         }
     }
 
+    fn offer_keylet(&self, account: &[u8], seq: i32, out: &mut [u8]) -> HostResult<usize> {
+        let key = (account.to_vec(), seq);
+        self.offer_keylets_asked.borrow_mut().push(key.clone());
+        match self.offer_keylets.get(&key) {
+            Some(answer) => answer.fill(out),
+            None => Err(HostError::InvalidAccount),
+        }
+    }
+
     fn sha512_half(&self, data: &[u8], out: &mut [u8]) -> HostResult<usize> {
         self.digested.borrow_mut().push(data.to_vec());
         self.digest.fill(out)
@@ -929,6 +955,7 @@ pub mod import {
     pub const MPT_ISSUANCE_ID: &str = r#"(import "host_lib" "mpt_issuance_id" (func $mpt_issuance_id (param i32 i32 i32 i32 i32) (result i32)))"#;
     pub const MPTOKEN_ID: &str = r#"(import "host_lib" "mptoken_id" (func $mptoken_id (param i32 i32 i32 i32 i32 i32) (result i32)))"#;
     pub const NFT_OFFER_ID: &str = r#"(import "host_lib" "nft_offer_id" (func $nft_offer_id (param i32 i32 i32 i32 i32) (result i32)))"#;
+    pub const OFFER_ID: &str = r#"(import "host_lib" "offer_id" (func $offer_id (param i32 i32 i32 i32 i32) (result i32)))"#;
     pub const SHA512_HALF: &str = r#"(import "host_lib" "sha512_half" (func $sha512_half (param i32 i32 i32 i32) (result i32)))"#;
     pub const TRACE: &str =
         r#"(import "host_lib" "trace" (func $trace (param i32 i32 i32 i32 i32) (result i32)))"#;
diff --git a/include/xrpl/tx/wasm/HostContext.h b/include/xrpl/tx/wasm/HostContext.h
index 2945edfb0d..cb99158dd2 100644
--- a/include/xrpl/tx/wasm/HostContext.h
+++ b/include/xrpl/tx/wasm/HostContext.h
@@ -210,6 +210,14 @@ public:
         std::int32_t seq,
         rust::Slice<std::uint8_t> out) const noexcept;
 
+    // The account id must be 20 bytes, else `InvalidParams`. `seq` carries the guest's
+    // u32 as its i32 bit pattern. Writes the 32-byte keylet.
+    [[nodiscard]] std::int32_t
+    offerKeylet(
+        rust::Slice<std::uint8_t const> account,
+        std::int32_t seq,
+        rust::Slice<std::uint8_t> out) const noexcept;
+
     [[nodiscard]] std::int32_t
     sha512Half(rust::Slice<std::uint8_t const> data, rust::Slice<std::uint8_t> out) const noexcept;
 
diff --git a/src/libxrpl/tx/wasm/HostContext.cpp b/src/libxrpl/tx/wasm/HostContext.cpp
index 28fb972b35..827462a538 100644
--- a/src/libxrpl/tx/wasm/HostContext.cpp
+++ b/src/libxrpl/tx/wasm/HostContext.cpp
@@ -683,6 +683,26 @@ HostContext::nftokenOfferKeylet(
     });
 }
 
+std::int32_t
+HostContext::offerKeylet(
+    rust::Slice<std::uint8_t const> account,
+    std::int32_t seq,
+    rust::Slice<std::uint8_t> out) const noexcept
+{
+    return guarded(hostFunctions_.getJournal(), kHostInternal, [&] {
+        if (account.size() != AccountID::size())
+            return hfErrorToInt(HostFunctionError::InvalidParams);
+
+        // The guest's u32 seq arrives as its i32 bit pattern; recover it.
+        auto const value = hostFunctions_.offerKeylet(
+            AccountID::fromVoid(account.data()), static_cast<std::uint32_t>(seq));
+        if (!value)
+            return hfErrorToInt(value.error());
+
+        return answer(out, value->data(), value->size());
+    });
+}
+
 std::int32_t
 HostContext::sha512Half(rust::Slice<std::uint8_t const> data, rust::Slice<std::uint8_t> out)
     const noexcept