diff --git a/Cargo.lock b/Cargo.lock
index 289ce5a9..7d63b4da 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2804,25 +2804,6 @@ dependencies = [
  "tracing",
 ]
 
-[[package]]
-name = "h2"
-version = "0.4.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2f44da3a8150a6703ed5d34e164b875fd14c2cdab9af1252a9a1020bde2bdc54"
-dependencies = [
- "atomic-waker",
- "bytes",
- "fnv",
- "futures-core",
- "futures-sink",
- "http 1.4.0",
- "indexmap 2.13.0",
- "slab",
- "tokio",
- "tokio-util",
- "tracing",
-]
-
 [[package]]
 name = "half"
 version = "2.7.1"
@@ -3003,7 +2984,7 @@ dependencies = [
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2 0.3.27",
+ "h2",
  "http 0.2.12",
  "http-body 0.4.6",
  "httparse",
@@ -3027,7 +3008,6 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-core",
- "h2 0.4.13",
  "http 1.4.0",
  "http-body 1.0.1",
  "httparse",
@@ -3105,11 +3085,9 @@ dependencies = [
  "percent-encoding",
  "pin-project-lite",
  "socket2 0.6.2",
- "system-configuration 0.7.0",
  "tokio",
  "tower-service",
  "tracing",
- "windows-registry",
 ]
 
 [[package]]
@@ -3733,11 +3711,10 @@ dependencies = [
 
 [[package]]
 name = "mpp"
-version = "0.5.0"
-source = "git+https://github.com/tempoxyz/mpp-rs.git?branch=main#97bebefe1f5e7a72142be12496606c3d0e2aeedb"
+version = "0.7.0"
+source = "git+https://github.com/tempoxyz/mpp-rs.git?branch=main#04353f380be7a7810db5b3e6c0aa49dbfdb1984d"
 dependencies = [
  "alloy",
- "alloy-signer-local",
  "async-stream",
  "base64 0.22.1",
  "futures-core",
@@ -3745,7 +3722,6 @@ dependencies = [
  "hmac",
  "rand 0.9.2",
  "reqwest 0.12.28",
- "revm-database-interface 9.0.0",
  "serde",
  "serde_json",
  "serde_json_canonicalizer",
@@ -4830,7 +4806,7 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
- "h2 0.3.27",
+ "h2",
  "http 0.2.12",
  "http-body 0.4.6",
  "hyper 0.14.32",
@@ -4848,7 +4824,7 @@ dependencies = [
  "serde_json",
  "serde_urlencoded",
  "sync_wrapper 0.1.2",
- "system-configuration 0.5.1",
+ "system-configuration",
  "tokio",
  "tokio-rustls 0.24.1",
  "tokio-util",
@@ -4869,10 +4845,8 @@ checksum = "eddd3ca559203180a307f12d114c268abf583f59b03cb906fd0b3ff8646c1147"
 dependencies = [
  "base64 0.22.1",
  "bytes",
- "encoding_rs",
  "futures-core",
  "futures-util",
- "h2 0.4.13",
  "http 1.4.0",
  "http-body 1.0.1",
  "http-body-util",
@@ -4882,7 +4856,6 @@ dependencies = [
  "hyper-util",
  "js-sys",
  "log",
- "mime",
  "mime_guess",
  "native-tls",
  "percent-encoding",
@@ -5107,9 +5080,9 @@ dependencies = [
  "op-alloy-consensus",
  "quanta",
  "reth-codecs",
- "revm-bytecode 9.0.0",
+ "revm-bytecode",
  "revm-primitives",
- "revm-state 10.0.0",
+ "revm-state",
  "secp256k1 0.30.0",
  "serde",
  "serde_with",
@@ -5211,8 +5184,8 @@ dependencies = [
  "reth-primitives-traits",
  "reth-prune-types",
  "reth-static-file-types",
- "revm-database-interface 10.0.0",
- "revm-state 10.0.0",
+ "revm-database-interface",
+ "revm-state",
  "thiserror 2.0.18",
 ]
 
@@ -5251,29 +5224,17 @@ version = "36.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b0abc15d09cd211e9e73410ada10134069c794d4bcdb787dfc16a1bf0939849c"
 dependencies = [
- "revm-bytecode 9.0.0",
+ "revm-bytecode",
  "revm-context",
  "revm-context-interface",
  "revm-database",
- "revm-database-interface 10.0.0",
+ "revm-database-interface",
  "revm-handler",
  "revm-inspector",
  "revm-interpreter",
  "revm-precompile",
  "revm-primitives",
- "revm-state 10.0.0",
-]
-
-[[package]]
-name = "revm-bytecode"
-version = "8.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74d1e5c1eaa44d39d537f668bc5c3409dc01e5c8be954da6c83370bbdf006457"
-dependencies = [
- "bitvec",
- "phf",
- "revm-primitives",
- "serde",
+ "revm-state",
 ]
 
 [[package]]
@@ -5297,11 +5258,11 @@ dependencies = [
  "bitvec",
  "cfg-if",
  "derive-where",
- "revm-bytecode 9.0.0",
+ "revm-bytecode",
  "revm-context-interface",
- "revm-database-interface 10.0.0",
+ "revm-database-interface",
  "revm-primitives",
- "revm-state 10.0.0",
+ "revm-state",
  "serde",
 ]
 
@@ -5315,9 +5276,9 @@ dependencies = [
  "alloy-eip7702",
  "auto_impl",
  "either",
- "revm-database-interface 10.0.0",
+ "revm-database-interface",
  "revm-primitives",
- "revm-state 10.0.0",
+ "revm-state",
  "serde",
 ]
 
@@ -5328,25 +5289,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2c0a7d6da41061f2c50f99a2632571026b23684b5449ff319914151f4449b6c8"
 dependencies = [
  "alloy-eips",
- "revm-bytecode 9.0.0",
- "revm-database-interface 10.0.0",
- "revm-primitives",
- "revm-state 10.0.0",
- "serde",
-]
-
-[[package]]
-name = "revm-database-interface"
-version = "9.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7bf93ac5b91347c057610c0d96e923db8c62807e03f036762d03e981feddc1d"
-dependencies = [
- "auto_impl",
- "either",
+ "revm-bytecode",
+ "revm-database-interface",
  "revm-primitives",
- "revm-state 9.0.0",
+ "revm-state",
  "serde",
- "thiserror 2.0.18",
 ]
 
 [[package]]
@@ -5358,7 +5305,7 @@ dependencies = [
  "auto_impl",
  "either",
  "revm-primitives",
- "revm-state 10.0.0",
+ "revm-state",
  "serde",
  "thiserror 2.0.18",
 ]
@@ -5371,14 +5318,14 @@ checksum = "9f1eed729ca9b228ae98688f352235871e9b8be3d568d488e4070f64c56e9d3d"
 dependencies = [
  "auto_impl",
  "derive-where",
- "revm-bytecode 9.0.0",
+ "revm-bytecode",
  "revm-context",
  "revm-context-interface",
- "revm-database-interface 10.0.0",
+ "revm-database-interface",
  "revm-interpreter",
  "revm-precompile",
  "revm-primitives",
- "revm-state 10.0.0",
+ "revm-state",
  "serde",
 ]
 
@@ -5391,11 +5338,11 @@ dependencies = [
  "auto_impl",
  "either",
  "revm-context",
- "revm-database-interface 10.0.0",
+ "revm-database-interface",
  "revm-handler",
  "revm-interpreter",
  "revm-primitives",
- "revm-state 10.0.0",
+ "revm-state",
  "serde",
  "serde_json",
 ]
@@ -5406,10 +5353,10 @@ version = "34.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf22f80612bb8f58fd1f578750281f2afadb6c93835b14ae6a4d6b75ca26f445"
 dependencies = [
- "revm-bytecode 9.0.0",
+ "revm-bytecode",
  "revm-context-interface",
  "revm-primitives",
- "revm-state 10.0.0",
+ "revm-state",
  "serde",
 ]
 
@@ -5448,19 +5395,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "revm-state"
-version = "9.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "311720d4f0f239b041375e7ddafdbd20032a33b7bae718562ea188e188ed9fd3"
-dependencies = [
- "alloy-eip7928",
- "bitflags 2.11.0",
- "revm-bytecode 8.0.0",
- "revm-primitives",
- "serde",
-]
-
 [[package]]
 name = "revm-state"
 version = "10.0.0"
@@ -5469,7 +5403,7 @@ checksum = "d29404707763da607e5d6e4771cb203998c28159279c2f64cc32de08d2814651"
 dependencies = [
  "alloy-eip7928",
  "bitflags 2.11.0",
- "revm-bytecode 9.0.0",
+ "revm-bytecode",
  "revm-primitives",
  "serde",
 ]
@@ -6424,18 +6358,7 @@ checksum = "ba3a3adc5c275d719af8cb4272ea1c4a6d668a777f37e115f6d11ddbc1c8e0e7"
 dependencies = [
  "bitflags 1.3.2",
  "core-foundation 0.9.4",
- "system-configuration-sys 0.5.0",
-]
-
-[[package]]
-name = "system-configuration"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a13f3d0daba03132c0aa9767f98351b3488edc2c100cda2d2ec2b04f3d8d3c8b"
-dependencies = [
- "bitflags 2.11.0",
- "core-foundation 0.9.4",
- "system-configuration-sys 0.6.0",
+ "system-configuration-sys",
 ]
 
 [[package]]
@@ -6448,16 +6371,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "system-configuration-sys"
-version = "0.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e1d1b10ced5ca923a1fcb8d03e96b8d3268065d724548c0211415ff6ac6bac4"
-dependencies = [
- "core-foundation-sys",
- "libc",
-]
-
 [[package]]
 name = "tap"
 version = "1.0.1"
@@ -6525,6 +6438,7 @@ dependencies = [
  "serial_test",
  "sha2",
  "tempfile",
+ "tempo-alloy",
  "tempo-primitives",
  "thiserror 2.0.18",
  "time",
@@ -7614,17 +7528,6 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f0805222e57f7521d6a62e36fa9163bc891acd422f971defe97d64e70d0a4fe5"
 
-[[package]]
-name = "windows-registry"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02752bf7fbdcce7f2a27a742f798510f3e5ad88dbe84871e5168e2120c3d5720"
-dependencies = [
- "windows-link",
- "windows-result",
- "windows-strings",
-]
-
 [[package]]
 name = "windows-result"
 version = "0.4.1"
diff --git a/Cargo.toml b/Cargo.toml
index ac3ea536..0c361f8d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -47,6 +47,7 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 sha2 = "0.10"
 tempfile = "3.27"
+tempo-alloy = "1.4"
 tempo-primitives = { git = "https://github.com/tempoxyz/tempo.git", features = ["serde"] }
 thiserror = "2.0"
 time = "0.3"
diff --git a/crates/tempo-common/Cargo.toml b/crates/tempo-common/Cargo.toml
index 881f67f8..e825ceb6 100644
--- a/crates/tempo-common/Cargo.toml
+++ b/crates/tempo-common/Cargo.toml
@@ -30,6 +30,7 @@ serde.workspace = true
 serde_json.workspace = true
 sha2.workspace = true
 tempfile.workspace = true
+tempo-alloy.workspace = true
 tempo-primitives.workspace = true
 thiserror.workspace = true
 time.workspace = true
diff --git a/crates/tempo-common/src/payment/session/tx.rs b/crates/tempo-common/src/payment/session/tx.rs
index a9d75fc7..bdfc3199 100644
--- a/crates/tempo-common/src/payment/session/tx.rs
+++ b/crates/tempo-common/src/payment/session/tx.rs
@@ -10,6 +10,7 @@ use alloy::{
     sol,
     sol_types::SolCall,
 };
+use tempo_alloy::rpc::TempoTransactionRequest;
 use tempo_primitives::transaction::Call;
 
 use mpp::client::tempo::{charge::tx_builder, signing};
@@ -104,20 +105,26 @@ pub async fn resolve_and_sign_tx_with_fee_payer(
     // Hold the provisioning-retry signer if we need to rebuild.
     let provisioning_signer;
 
-    let gas_result = tx_builder::estimate_gas(
-        provider,
-        from,
-        chain_id,
-        nonce,
-        effective_fee_token,
-        &calls,
-        MAX_FEE_PER_GAS,
-        MAX_PRIORITY_FEE_PER_GAS,
-        key_auth,
-        EXPIRING_NONCE_KEY,
-        valid_before,
-    )
-    .await;
+    let build_gas_req = |key_auth: Option<&tempo_primitives::transaction::SignedKeyAuthorization>| {
+        let mut req = TempoTransactionRequest {
+            calls: calls.clone(),
+            key_authorization: key_auth.cloned(),
+            ..Default::default()
+        }
+        .with_fee_token(effective_fee_token)
+        .with_nonce_key(EXPIRING_NONCE_KEY);
+        if let Some(vb) = valid_before {
+            req = req.with_valid_before(vb);
+        }
+        req.inner.from = Some(from);
+        req.inner.chain_id = Some(chain_id);
+        req.inner.nonce = Some(nonce);
+        req.inner.max_fee_per_gas = Some(MAX_FEE_PER_GAS);
+        req.inner.max_priority_fee_per_gas = Some(MAX_PRIORITY_FEE_PER_GAS);
+        req
+    };
+
+    let gas_result = tx_builder::estimate_gas(provider, build_gas_req(key_auth)).await;
 
     let gas_limit = match gas_result {
         Ok(gas) => gas,
@@ -132,24 +139,12 @@ pub async fn resolve_and_sign_tx_with_fee_payer(
                     })?;
             effective_wallet = &provisioning_signer;
             key_auth = effective_wallet.signing_mode.key_authorization();
-            tx_builder::estimate_gas(
-                provider,
-                from,
-                chain_id,
-                nonce,
-                effective_fee_token,
-                &calls,
-                MAX_FEE_PER_GAS,
-                MAX_PRIORITY_FEE_PER_GAS,
-                key_auth,
-                EXPIRING_NONCE_KEY,
-                valid_before,
-            )
-            .await
-            .map_err(|_| KeyError::SigningOperationSource {
-                operation: "estimate gas",
-                source: Box::new(original),
-            })?
+            tx_builder::estimate_gas(provider, build_gas_req(key_auth))
+                .await
+                .map_err(|_| KeyError::SigningOperationSource {
+                    operation: "estimate gas",
+                    source: Box::new(original),
+                })?
         }
         Err(e) => {
             return Err(KeyError::SigningOperationSource {
diff --git a/crates/tempo-request/src/http/client.rs b/crates/tempo-request/src/http/client.rs
index 7c355032..d9da8cc8 100644
--- a/crates/tempo-request/src/http/client.rs
+++ b/crates/tempo-request/src/http/client.rs
@@ -152,8 +152,6 @@ impl HttpClient {
 
         if plan.http1_only {
             builder = builder.http1_only();
-        } else if plan.http2 {
-            builder = builder.http2_adaptive_window(true);
         }
 
         if !plan.headers.is_empty() {