diff --git a/.github/actions/cargo-risczero-install/action.yaml b/.github/actions/cargo-risczero-install/action.yaml
index 8d72e0b8..4a609805 100644
--- a/.github/actions/cargo-risczero-install/action.yaml
+++ b/.github/actions/cargo-risczero-install/action.yaml
@@ -2,9 +2,19 @@ name: cargo risczero install
 description: Install cargo risczero, build toolchains, and r0vm.
 
 inputs:
+  version:
+    description: |
+      crates.io version specifier to use when installing cargo-risczero
+
+      Mutually exclusive with ref.
+    required: false
+    type: string
   ref:
-    description: 'Git reference to pull from risc0/risc0 and build'
-    required: true
+    description: |
+      Git reference to pull from risc0/risc0 and build'
+
+      Mutually exclusive with version.
+    required: false
     type: string
   toolchain-version:
     description: 'Version of the RISC Zero toolchains to install'
@@ -20,21 +30,44 @@ inputs:
 runs:
   using: composite
   steps:
+      - name: validate inputs
+        shell: bash
+        run: |
+          if [ ! -z "${{ inputs.version }}" ] && [ ! -z "${{ inputs.ref }}" ]; then
+            echo "Error: Cannot specify both 'version' and 'ref' parameters"
+            exit 1
+          fi
+          if [ -z "${{ inputs.version }}" ] && [ -z "${{ inputs.ref }}" ]; then
+            echo "Error: Must specify either 'version' or 'ref' parameter"
+            exit 1
+          fi
+
+      # Only run these steps if using ref (building from source)
       - name: checkout risc0
+        if: inputs.ref != ''
         uses: actions/checkout@v4
         with:
           repository: 'risc0/risc0'
           path: 'tmp/risc0'
           ref: ${{ inputs.ref }}
           lfs: true
-      - name: install cargo-risczero
+      - name: install cargo-risczero from git
+        if: inputs.ref != ''
         run: cargo install --locked --path risc0/cargo-risczero --no-default-features --features "${{ inputs.features }}"
         working-directory: tmp/risc0
         shell: bash
-      - name: install r0vm
+      - name: install r0vm from git
+        if: inputs.ref != ''
         run: cargo install --locked --bin r0vm --path risc0/cargo-risczero --features "${{ inputs.features }}"
         shell: bash
         working-directory: tmp/risc0
+
+      # Only run this step if using version (installing from crates.io)
+      - name: install cargo-risczero from crates.io
+        if: inputs.version != ''
+        run: cargo install --locked cargo-risczero --version "${{ inputs.version }}" --no-default-features --features "${{ inputs.features }}"
+        shell: bash
+
       - name: install toolchains
         run: cargo risczero install ${{ inputs.toolchain-version != '' && format('--version {0}', inputs.toolchain-version) || '' }}
         shell: bash
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index 80ae37c3..4974f045 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -18,7 +18,7 @@ permissions:
 env:
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   RISC0_TOOLCHAIN_VERSION: r0.1.81.0
-  RISC0_MONOREPO_REF: "release-1.2"
+  RISC0_VERSION: "^1.2"
 
 jobs:
   e2e-tests:
@@ -69,7 +69,7 @@ jobs:
       - uses: foundry-rs/foundry-toolchain@v1
       - uses: ./.github/actions/cargo-risczero-install
         with:
-          ref: ${{ env.RISC0_MONOREPO_REF }}
+          version: ${{ env.RISC0_VERSION }}
           toolchain-version: ${{ env.RISC0_TOOLCHAIN_VERSION }}
           features: ${{ matrix.feature }}
       - name: Setup Kurtosis
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8d664ecf..f74000db 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,7 +17,7 @@ permissions:
 env:
   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   RISC0_TOOLCHAIN_VERSION: r0.1.81.0
-  RISC0_MONOREPO_REF: "release-1.2"
+  RISC0_VERSION: "^1.2"
   # CARGO_LOCKED is defined as the string '--locked' in PRs targeting release branches and '' elsewhere.
   CARGO_LOCKED:  ${{ (startsWith(github.base_ref, 'release-') || startsWith(github.base_ref, 'refs/heads/release-')) && '--locked' || '' }}
 
@@ -94,7 +94,7 @@ jobs:
           key: ${{ matrix.os }}-${{ matrix.feature }}
       - uses: ./.github/actions/cargo-risczero-install
         with:
-          ref: ${{ env.RISC0_MONOREPO_REF }}
+          version: ${{ env.RISC0_VERSION }}
           toolchain-version: ${{ env.RISC0_TOOLCHAIN_VERSION }}
           features: ${{ matrix.feature }}
       - name: cargo clippy risc0-ethereum
@@ -144,7 +144,7 @@ jobs:
           key: ${{ matrix.os }}-${{ matrix.feature }}
       - uses: ./.github/actions/cargo-risczero-install
         with:
-          ref: ${{ env.RISC0_MONOREPO_REF }}
+          version: ${{ env.RISC0_VERSION }}
           toolchain-version: ${{ env.RISC0_TOOLCHAIN_VERSION }}
           features: ${{ matrix.feature }}
       - uses: foundry-rs/foundry-toolchain@v1
@@ -187,7 +187,7 @@ jobs:
           key: ${{ matrix.os }}-${{ matrix.feature }}
       - uses: ./.github/actions/cargo-risczero-install
         with:
-          ref: ${{ env.RISC0_MONOREPO_REF }}
+          version: ${{ env.RISC0_VERSION }}
           toolchain-version: ${{ env.RISC0_TOOLCHAIN_VERSION }}
           features: ${{ matrix.feature }}
       - uses: foundry-rs/foundry-toolchain@v1
diff --git a/contracts/deployment.toml b/contracts/deployment.toml
index 7e0c1aae..e80d3439 100644
--- a/contracts/deployment.toml
+++ b/contracts/deployment.toml
@@ -33,7 +33,6 @@ version = "1.2.0"
 selector = "0xc101b42b"
 verifier = "0xAC292cF957Dd5BA174cdA13b05C16aFC71700327"
 estop = "0x03B66cEDaB014Ca7E970Bfb83C1951d10DD2A805"
-unroutable = true # remove when added to the router
 
 ###
 
@@ -156,7 +155,6 @@ version = "1.2.0"
 selector = "0xc101b42b"
 verifier = "0xAC292cF957Dd5BA174cdA13b05C16aFC71700327"
 estop = "0x03B66cEDaB014Ca7E970Bfb83C1951d10DD2A805"
-unroutable = true # remove when added to the router
 
 ###
 
@@ -232,7 +230,6 @@ version = "1.2.0"
 selector = "0xc101b42b"
 verifier = "0x8062Dc6C824F10e62E47FdC55A0ecD54C2641F2d"
 estop = "0x5b188d3d31f7bcfC2e3A22F85c3ca4dD23a77dD1"
-unroutable = true # remove when added to the router
 
 ###
 
@@ -307,7 +304,6 @@ version = "1.2.0"
 selector = "0xc101b42b"
 verifier = "0xAC292cF957Dd5BA174cdA13b05C16aFC71700327"
 estop = "0x03B66cEDaB014Ca7E970Bfb83C1951d10DD2A805"
-unroutable = true # remove when added to the router
 
 ###
 
@@ -382,7 +378,6 @@ version = "1.2.0"
 selector = "0xc101b42b"
 verifier = "0xAC292cF957Dd5BA174cdA13b05C16aFC71700327"
 estop = "0x03B66cEDaB014Ca7E970Bfb83C1951d10DD2A805"
-unroutable = true # remove when added to the router
 
 ###
 
@@ -460,7 +455,6 @@ version = "1.2.0"
 selector = "0xc101b42b"
 verifier = "0x8C8b557C6EBDA8E6D62E7b54B7B5Ed8cFa8B48B4"
 estop = "0x6Fb722974D67A55091c70129Bd0Bb06ec025ce5D"
-unroutable = true # remove when added to the router
 
 ###
 
@@ -545,7 +539,6 @@ version = "1.2.0"
 selector = "0xc101b42b"
 verifier = "0x8062Dc6C824F10e62E47FdC55A0ecD54C2641F2d"
 estop = "0x5b188d3d31f7bcfC2e3A22F85c3ca4dD23a77dD1"
-unroutable = true # remove when added to the router
 
 ###