diff --git a/action.yml b/action.yml
index 7b93c0f..4a250ef 100644
--- a/action.yml
+++ b/action.yml
@@ -27,15 +27,18 @@ runs:
       uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
       if: ${{ inputs.openai_api_key != '' }}
       env:
-        OPENAI_API_KEY: ${{ inputs.openai_api_key }} 
+        OPENAI_API_KEY: ${{ inputs.openai_api_key }}
+        GITHUB_TOKEN: ${{ inputs.github_token }}
+        PRNUM: ${{ github.event.issue.number }} 
       with:
           script: |
             const { default: explainPatch } = await import('${{ github.action_path }}/src/openaiExplainPatch.js')
-            console.log(process.env)
+            // console.log(process.env)
             console.log(await explainPatch({
               openaiKey: process.env.OPENAI_API_KEY,
+              github: github,
               repo: process.env.GITHUB_ACTION_REPOSITORY,
-              prnum: process.env.GITHUB_REF_NAME.split('/')[0]}))
+              prnum: process.env.PRNUM}))
 
             console.log('rerun')
             console.log('implement me')
diff --git a/package-lock.json b/package-lock.json
index 73ed0c5..2c4ce4c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,100 @@
     "packages": {
         "": {
             "dependencies": {
+                "@octokit/core": "^5.0.2",
                 "openai": "^4.20.1"
             }
         },
+        "node_modules/@octokit/auth-token": {
+            "version": "4.0.0",
+            "resolved": "https://registry.npmjs.org/@octokit/auth-token/-/auth-token-4.0.0.tgz",
+            "integrity": "sha512-tY/msAuJo6ARbK6SPIxZrPBms3xPbfwBrulZe0Wtr/DIY9lje2HeV1uoebShn6mx7SjCHif6EjMvoREj+gZ+SA==",
+            "engines": {
+                "node": ">= 18"
+            }
+        },
+        "node_modules/@octokit/core": {
+            "version": "5.0.2",
+            "resolved": "https://registry.npmjs.org/@octokit/core/-/core-5.0.2.tgz",
+            "integrity": "sha512-cZUy1gUvd4vttMic7C0lwPed8IYXWYp8kHIMatyhY8t8n3Cpw2ILczkV5pGMPqef7v0bLo0pOHrEHarsau2Ydg==",
+            "dependencies": {
+                "@octokit/auth-token": "^4.0.0",
+                "@octokit/graphql": "^7.0.0",
+                "@octokit/request": "^8.0.2",
+                "@octokit/request-error": "^5.0.0",
+                "@octokit/types": "^12.0.0",
+                "before-after-hook": "^2.2.0",
+                "universal-user-agent": "^6.0.0"
+            },
+            "engines": {
+                "node": ">= 18"
+            }
+        },
+        "node_modules/@octokit/endpoint": {
+            "version": "9.0.4",
+            "resolved": "https://registry.npmjs.org/@octokit/endpoint/-/endpoint-9.0.4.tgz",
+            "integrity": "sha512-DWPLtr1Kz3tv8L0UvXTDP1fNwM0S+z6EJpRcvH66orY6Eld4XBMCSYsaWp4xIm61jTWxK68BrR7ibO+vSDnZqw==",
+            "dependencies": {
+                "@octokit/types": "^12.0.0",
+                "universal-user-agent": "^6.0.0"
+            },
+            "engines": {
+                "node": ">= 18"
+            }
+        },
+        "node_modules/@octokit/graphql": {
+            "version": "7.0.2",
+            "resolved": "https://registry.npmjs.org/@octokit/graphql/-/graphql-7.0.2.tgz",
+            "integrity": "sha512-OJ2iGMtj5Tg3s6RaXH22cJcxXRi7Y3EBqbHTBRq+PQAqfaS8f/236fUrWhfSn8P4jovyzqucxme7/vWSSZBX2Q==",
+            "dependencies": {
+                "@octokit/request": "^8.0.1",
+                "@octokit/types": "^12.0.0",
+                "universal-user-agent": "^6.0.0"
+            },
+            "engines": {
+                "node": ">= 18"
+            }
+        },
+        "node_modules/@octokit/openapi-types": {
+            "version": "19.1.0",
+            "resolved": "https://registry.npmjs.org/@octokit/openapi-types/-/openapi-types-19.1.0.tgz",
+            "integrity": "sha512-6G+ywGClliGQwRsjvqVYpklIfa7oRPA0vyhPQG/1Feh+B+wU0vGH1JiJ5T25d3g1JZYBHzR2qefLi9x8Gt+cpw=="
+        },
+        "node_modules/@octokit/request": {
+            "version": "8.1.6",
+            "resolved": "https://registry.npmjs.org/@octokit/request/-/request-8.1.6.tgz",
+            "integrity": "sha512-YhPaGml3ncZC1NfXpP3WZ7iliL1ap6tLkAp6MvbK2fTTPytzVUyUesBBogcdMm86uRYO5rHaM1xIWxigWZ17MQ==",
+            "dependencies": {
+                "@octokit/endpoint": "^9.0.0",
+                "@octokit/request-error": "^5.0.0",
+                "@octokit/types": "^12.0.0",
+                "universal-user-agent": "^6.0.0"
+            },
+            "engines": {
+                "node": ">= 18"
+            }
+        },
+        "node_modules/@octokit/request-error": {
+            "version": "5.0.1",
+            "resolved": "https://registry.npmjs.org/@octokit/request-error/-/request-error-5.0.1.tgz",
+            "integrity": "sha512-X7pnyTMV7MgtGmiXBwmO6M5kIPrntOXdyKZLigNfQWSEQzVxR4a4vo49vJjTWX70mPndj8KhfT4Dx+2Ng3vnBQ==",
+            "dependencies": {
+                "@octokit/types": "^12.0.0",
+                "deprecation": "^2.0.0",
+                "once": "^1.4.0"
+            },
+            "engines": {
+                "node": ">= 18"
+            }
+        },
+        "node_modules/@octokit/types": {
+            "version": "12.3.0",
+            "resolved": "https://registry.npmjs.org/@octokit/types/-/types-12.3.0.tgz",
+            "integrity": "sha512-nJ8X2HRr234q3w/FcovDlA+ttUU4m1eJAourvfUUtwAWeqL8AsyRqfnLvVnYn3NFbUnsmzQCzLNdFerPwdmcDQ==",
+            "dependencies": {
+                "@octokit/openapi-types": "^19.0.2"
+            }
+        },
         "node_modules/@types/node": {
             "version": "18.18.13",
             "resolved": "https://registry.npmjs.org/@types/node/-/node-18.18.13.tgz",
@@ -57,6 +148,11 @@
             "resolved": "https://registry.npmjs.org/base-64/-/base-64-0.1.0.tgz",
             "integrity": "sha512-Y5gU45svrR5tI2Vt/X9GPd3L0HNIKzGu202EjxrXMpuc2V2CiKgemAbUUsqYmZJvPtCXoUKjNZwBJzsNScUbXA=="
         },
+        "node_modules/before-after-hook": {
+            "version": "2.2.3",
+            "resolved": "https://registry.npmjs.org/before-after-hook/-/before-after-hook-2.2.3.tgz",
+            "integrity": "sha512-NzUnlZexiaH/46WDhANlyR2bXRopNg4F/zuSA3OpZnllCUgRaOF2znDioDWrmbNVsuZk6l9pMquQB38cfBZwkQ=="
+        },
         "node_modules/charenc": {
             "version": "0.0.2",
             "resolved": "https://registry.npmjs.org/charenc/-/charenc-0.0.2.tgz",
@@ -92,6 +188,11 @@
                 "node": ">=0.4.0"
             }
         },
+        "node_modules/deprecation": {
+            "version": "2.3.1",
+            "resolved": "https://registry.npmjs.org/deprecation/-/deprecation-2.3.1.tgz",
+            "integrity": "sha512-xmHIy4F3scKVwMsQ4WnVaS8bHOx0DmVwRywosKhaILI0ywMDWPtBSku2HNxRvF7jtwDRsoEwYQSfbxj8b7RlJQ=="
+        },
         "node_modules/digest-fetch": {
             "version": "1.3.0",
             "resolved": "https://registry.npmjs.org/digest-fetch/-/digest-fetch-1.3.0.tgz",
@@ -231,6 +332,14 @@
                 }
             }
         },
+        "node_modules/once": {
+            "version": "1.4.0",
+            "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
+            "integrity": "sha512-lNaJgI+2Q5URQBkccEKHTQOPaXdUxnZZElQTZY0MFUAuaEqe1E+Nyvgdz/aIyNi6Z9MzO5dv1H8n58/GELp3+w==",
+            "dependencies": {
+                "wrappy": "1"
+            }
+        },
         "node_modules/openai": {
             "version": "4.20.1",
             "resolved": "https://registry.npmjs.org/openai/-/openai-4.20.1.tgz",
@@ -260,6 +369,11 @@
             "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
             "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA=="
         },
+        "node_modules/universal-user-agent": {
+            "version": "6.0.1",
+            "resolved": "https://registry.npmjs.org/universal-user-agent/-/universal-user-agent-6.0.1.tgz",
+            "integrity": "sha512-yCzhz6FN2wU1NiiQRogkTQszlQSlpWaw8SvVegAc+bDxbzHgh1vX8uIe8OYyMH6DwH+sdTJsgMl36+mSMdRJIQ=="
+        },
         "node_modules/web-streams-polyfill": {
             "version": "3.2.1",
             "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.2.1.tgz",
@@ -281,6 +395,11 @@
                 "tr46": "~0.0.3",
                 "webidl-conversions": "^3.0.0"
             }
+        },
+        "node_modules/wrappy": {
+            "version": "1.0.2",
+            "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+            "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="
         }
     }
 }
diff --git a/package.json b/package.json
index 9da7a8a..96f9d09 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,7 @@
         "email": "security@brave.com"
     },
     "dependencies": {
+        "@octokit/core": "^5.0.2",
         "openai": "^4.20.1"
     }
 }
diff --git a/src/openaiExplainPatch.js b/src/openaiExplainPatch.js
index 38bb51e..fcbe8c3 100644
--- a/src/openaiExplainPatch.js
+++ b/src/openaiExplainPatch.js
@@ -1,6 +1,8 @@
 import OpenAI from "openai";
 
-export default async function explainPatch({openaiKey, repo, prnum, 
+export default async function explainPatch({openaiKey, repo, prnum,
+  githubToken=null, 
+  github=null,
   model="gpt-3.5-turbo-16k",
   system_prompt="Explain the patch:\n\n",
   max_tokens=256,
@@ -8,10 +10,32 @@ export default async function explainPatch({openaiKey, repo, prnum,
   top_p=1,
   frequency_penalty=0,
   presence_penalty=0}) {
+
+  if (!github && !githubToken) throw RangeError("github and githubToken arguments cannot be both null");
+
   const openai = new OpenAI({apiKey: openaiKey});
 
-  const patchResponse = await fetch(`https://github.com/${repo}/pull/${prnum}.patch`);
-  const patchBody = await patchResponse.text();
+  if (!github) {
+    const { Octokit } = await import("@octokit/core");
+    
+    github = {
+      rest: new Octokit({auth: githubToken})
+    }
+  }
+
+  const [owner, reponame] = repo.split('/');
+
+  const {data: patchBody} = await github.rest.request('GET /repos/{owner}/{repo}/pulls/{pull_number}', {
+    owner: owner,
+    repo: reponame,
+    pull_number: prnum,
+    headers: {
+      'X-GitHub-Api-Version': '2022-11-28'
+    },
+    mediaType: {
+      format: "patch",
+    },
+  })
 
   return patchBody;