diff --git a/.github/workflows/grpcurl-test.yml b/.github/workflows/grpcurl-test.yml
new file mode 100644
index 0000000..d076a4e
--- /dev/null
+++ b/.github/workflows/grpcurl-test.yml
@@ -0,0 +1,43 @@
+name: Run grpcurl commands on pull request
+
+on:
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  run-grpcurl:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18.18'
+
+      - name: Install grpcurl
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y curl
+          curl -sSL https://github.com/fullstorydev/grpcurl/releases/download/v1.8.7/grpcurl_1.8.7_linux_x86_64.tar.gz | sudo tar -xz -C /usr/local/bin
+
+      - name: Run grpcurl for substreams services
+        run: node scripts/run-grpcurl-substreams.js
+
+      - name: Check for grpcurl errors
+        if: failure()
+        run: |
+          echo "There were grpcurl errors, blocking the pull request."
+          exit 1
+      
+      - name: Run grpcurl for firehose services
+        run: node scripts/run-grpcurl-firehose.js
+
+      - name: Check for grpcurl errors
+        if: failure()
+        run: |
+          echo "There were grpcurl errors, blocking the pull request."
+          exit 1
diff --git a/scripts/known-issues-chains.js b/scripts/known-issues-chains.js
new file mode 100644
index 0000000..89decbc
--- /dev/null
+++ b/scripts/known-issues-chains.js
@@ -0,0 +1,8 @@
+const affectedChains = [
+  {
+    id: 'cosmoshub',
+    affected_services: ['firehose'],
+  },
+];
+
+module.exports = { affectedChains };
diff --git a/scripts/run-grpcurl-firehose.js b/scripts/run-grpcurl-firehose.js
new file mode 100644
index 0000000..129ddc4
--- /dev/null
+++ b/scripts/run-grpcurl-firehose.js
@@ -0,0 +1,65 @@
+const fs = require('fs');
+const path = require('path');
+const { exec } = require('child_process');
+const { affectedChains } = require('./known-issues-chains');
+const filePath = path.resolve(__dirname, '../data/chains/V2/chains.json');
+const chains = JSON.parse(
+  fs.readFileSync(filePath, 'utf8'),
+);
+
+function runGrpcurl(chainId, serviceName) {
+  return new Promise((resolve, reject) => {
+    const command = `grpcurl ${chainId}.${serviceName}.pinax.network:443 sf.${serviceName}.v2.EndpointInfo/Info`;
+    console.log(`Executing: ${command}`);
+
+    exec(command, (error, stdout, stderr) => {
+      if (error) {
+        console.error(`Error: ${error.message}`);
+        reject(new Error(`Command failed: ${command}`));
+        return;
+      }
+      if (stderr) {
+        console.error(`Stderr: ${stderr}`);
+      }
+      console.log(`Response: ${stdout}`);
+      resolve(`Success: ${command}`);
+    });
+  });
+}
+
+async function run() {
+  try {
+    for (const chain of chains) {
+      const firehoseService = chain.supported_services.firehose;
+
+      if (
+        affectedChains.some(
+          (affectedChain) =>
+            affectedChain.id === chain.id &&
+            affectedChain.affected_services.includes('firehose'),
+        )
+      ) {
+        console.log(
+          `${chain.id} is affected by known issues. Endpoint: ${chain.id}.firehose.pinax.network`,
+        );
+        return;
+      }
+      if (
+        firehoseService &&
+        firehoseService.deprecated_at === null &&
+        (firehoseService.beta_released_at || firehoseService.full_released_at)
+      ) {
+        console.log(
+          `Running grpcurl for substreams service on chain ${chain.id}`,
+        );
+        await runGrpcurl(chain.id, 'firehose');
+      }
+    }
+    console.log('All grpcurl commands executed successfully.');
+  } catch (error) {
+    console.error('Error during grpcurl execution:', error.message);
+    process.exit(1);
+  }
+}
+
+run();
diff --git a/scripts/run-grpcurl-substreams.js b/scripts/run-grpcurl-substreams.js
new file mode 100644
index 0000000..975da11
--- /dev/null
+++ b/scripts/run-grpcurl-substreams.js
@@ -0,0 +1,66 @@
+const fs = require('fs');
+const path = require('path');
+const { exec } = require('child_process');
+const { affectedChains } = require('./known-issues-chains');
+const filePath = path.resolve(__dirname, '../data/chains/V2/chains.json');
+const chains = JSON.parse(
+  fs.readFileSync(filePath, 'utf8'),
+);
+function runGrpcurl(chainId, serviceName) {
+  return new Promise((resolve, reject) => {
+    const command = `grpcurl ${chainId}.${serviceName}.pinax.network:443 sf.${serviceName}.rpc.v2.EndpointInfo/Info`;
+    console.log(`Executing: ${command}`);
+
+    exec(command, (error, stdout, stderr) => {
+      if (error) {
+        console.error(`Error: ${error.message}`);
+        reject(new Error(`Command failed: ${command}`));
+        return;
+      }
+      if (stderr) {
+        console.error(`Stderr: ${stderr}`);
+      }
+      console.log(`Response: ${stdout}`);
+      resolve(`Success: ${command}`);
+    });
+  });
+}
+
+async function run() {
+  try {
+    for (const chain of chains) {
+      const substreamsService = chain.supported_services.substreams;
+
+      if (
+        affectedChains.some(
+          (affectedChain) =>
+            affectedChain.id === chain.id &&
+            affectedChain.affected_services.includes('substreams'),
+        )
+      ) {
+        console.log(
+          `${chain.id} is affected by known issues. Endpoint: ${chain.id}.substreams.pinax.network`,
+        );
+        return;
+      }
+
+      if (
+        substreamsService &&
+        substreamsService.deprecated_at === null &&
+        (substreamsService.beta_released_at ||
+          substreamsService.full_released_at)
+      ) {
+        console.log(
+          `Running grpcurl for substreams service on chain ${chain.id}`,
+        );
+        await runGrpcurl(chain.id, 'substreams');
+      }
+    }
+    console.log('All grpcurl commands executed successfully.');
+  } catch (error) {
+    console.error('Error during grpcurl execution:', error.message);
+    process.exit(1);
+  }
+}
+
+run();