diff --git a/.github/scripts/validate-planets.js b/.github/scripts/validate-planets.js
new file mode 100644
index 00000000..1a870cb2
--- /dev/null
+++ b/.github/scripts/validate-planets.js
@@ -0,0 +1,25 @@
+import * as path from "jsr:@std/path";
+
+import Ajv2019 from "npm:ajv/dist/2019.js";
+import addFormats from "npm:ajv-formats";
+
+const baseUrl =
+  "https://planetarium.github.io/json-schema/NineChronicles/2024-12/";
+const fetchJsonSchema = async (name) =>
+  await (await fetch(path.join(baseUrl, `/${name}.schema.json`))).json();
+
+const ajv = new Ajv2019({ allErrors: true });
+addFormats(ajv);
+
+ajv.addSchema(await fetchJsonSchema("PlanetSpec"), "PlanetSpec.schema.json");
+
+const validate = ajv.compile(await fetchJsonSchema("PlanetRegistry"));
+
+for (const filename of Deno.args) {
+  console.log(`validating ${filename}`);
+  const valid = validate(JSON.parse(await Deno.readTextFile(filename)));
+  if (!valid) {
+    console.error(`Error validating ${filename}:`, validate.errors);
+    Deno.exit(1);
+  }
+}
diff --git a/.github/workflows/update-planets.yaml b/.github/workflows/update-planets.yaml
new file mode 100644
index 00000000..cbce1610
--- /dev/null
+++ b/.github/workflows/update-planets.yaml
@@ -0,0 +1,28 @@
+name: Update planets config
+
+on:
+  pull_request:
+    paths:
+      - planets/index.json
+    branches:
+      - main
+    types:
+      - closed
+
+jobs:
+  validate-planets-config:
+    if: github.event.pull_request.merged == true
+    uses: ./.github/workflows/validate-planets.yaml
+  update-planets-config:
+    needs: [validate-planets-config]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: aws-actions/configure-aws-credentials@v4
+        with:
+          aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+          aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+          aws-region: us-east-2
+      - run: |
+          aws s3 cp planets/index.json s3://planets.nine-chronicles.com/planets/index.json
+          aws cloudfront create-invalidation --distribution-id EP1JH2OWQMIKM --paths "/*"
diff --git a/.github/workflows/validate-planets.yaml b/.github/workflows/validate-planets.yaml
new file mode 100644
index 00000000..57f245ad
--- /dev/null
+++ b/.github/workflows/validate-planets.yaml
@@ -0,0 +1,17 @@
+name: Validate planets config
+
+on:
+  workflow_call:
+  pull_request:
+    paths:
+      - planets/index.json
+
+jobs:
+  validate-planets-config:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: denoland/setup-deno@v2
+        with:
+          deno-version: v2.x
+      - run: deno -A .github/scripts/validate-planets.js planets/index.json
diff --git a/planets/index.json b/planets/index.json
new file mode 100644
index 00000000..8f52a1de
--- /dev/null
+++ b/planets/index.json
@@ -0,0 +1,135 @@
+[
+  {
+    "id": "0x000000000000",
+    "name": "odin",
+    "genesisHash": "4582250d0da33b06779a8475d283d5dd210c683b9b999d74d03fac4f58fa6bce",
+    "genesisUri": "https://release.nine-chronicles.com/genesis-block-9c-main",
+    "9cscanUrl": "https://9cscan.com",
+    "rpcEndpoints": {
+      "dp.gql": ["http://odin-dp.9c.gg/graphql"],
+      "9cscan.rest": ["https://api.9cscan.com"],
+      "headless.gql": [
+        "https://odin-rpc-1.nine-chronicles.com/graphql",
+        "https://odin-rpc-2.nine-chronicles.com/graphql",
+        "http://sgp-nc-1.ninodes.com/graphql",
+        "http://sgp-nc-2.ninodes.com/graphql",
+        "http://ash-nc-1.ninodes.com/graphql",
+        "http://phx-nc-1.ninodes.com/graphql",
+        "http://nld-nc-1.ninodes.com/graphql"
+      ],
+      "headless.grpc": [
+        "http://odin-rpc-1.nine-chronicles.com:31238",
+        "http://odin-rpc-2.nine-chronicles.com:31238",
+        "http://sgp-nc-1.ninodes.com:31238",
+        "http://sgp-nc-2.ninodes.com:31238",
+        "http://ash-nc-1.ninodes.com:31238",
+        "http://phx-nc-1.ninodes.com:31238",
+        "http://nld-nc-1.ninodes.com:31238"
+      ],
+      "market.rest": [
+        "https://odin-market.9c.gg"
+      ],
+      "world-boss.rest": [
+        "https://odin-world-boss.9c.gg"
+      ],
+      "patrol-reward.gql": [
+        "https://odin-patrol.9c.gg/graphql"
+      ],
+      "arena.gql": [
+        "http://odin-arena.9c.gg/graphql"
+      ]
+    },
+    "bridges": {
+      "0x000000000001": {
+        "agent": "0x1c2ae97380CFB4F732049e454F6D9A25D4967c6f",
+        "avatar": "0x41aEFE4cdDFb57C9dFfd490e17e571705c593dDc"
+      },
+      "0x000000000003": {
+        "agent": "0x3e498a6A5cDbE027769F9502026c37Cb8613186e",
+        "avatar": "0x41E9Dc57F04cC561B68378490528e22a386ba9e1"
+      }
+    }
+  },
+  {
+    "id": "0x000000000001",
+    "name": "heimdall",
+    "genesisHash": "729fa26958648a35b53e8e3905d11ec53b1b4929bf5f499884aed7df616f5913",
+    "genesisUri": "https://planets.nine-chronicles.com/planets/0x000000000001/genesis",
+    "9cscanUrl": "https://heimdall.9cscan.com",
+    "rpcEndpoints": {
+      "dp.gql": [
+        "http://heimdall-dp.9c.gg/graphql"
+      ],
+      "9cscan.rest": [
+        "https://api-heimdall.9cscan.com"
+      ],
+      "headless.gql": [
+        "https://heimdall-rpc-1.nine-chronicles.com/graphql",
+        "https://heimdall-rpc-2.nine-chronicles.com/graphql",
+        "https://heimdall-rpc-3.nine-chronicles.com/graphql"
+      ],
+      "headless.grpc": [
+        "http://heimdall-rpc-1.nine-chronicles.com:31238",
+        "http://heimdall-rpc-2.nine-chronicles.com:31238",
+        "http://heimdall-rpc-3.nine-chronicles.com:31238"
+      ],
+      "market.rest": [
+        "http://heimdall-market.9c.gg"
+      ],
+      "world-boss.rest": [
+        "http://heimdall-world-boss.9c.gg"
+      ],
+      "patrol-reward.gql": [
+        "https://heimdall-patrol.9c.gg/graphql"
+      ],
+      "arena.gql": [
+        "http://heimdall-arena.9c.gg/graphql"
+      ]
+    },
+    "bridges": {
+      "0x000000000000": {
+        "agent": "0x1c2ae97380CFB4F732049e454F6D9A25D4967c6f",
+        "avatar": "0x41aEFE4cdDFb57C9dFfd490e17e571705c593dDc"
+      }
+    }
+  },
+  {
+    "id": "0x000000000003",
+    "name": "thor",
+    "genesisUri": "https://planets.nine-chronicles.com/planets/0x000000000003/genesis",
+    "genesisHash": "bde462fd59de5ccba8495ebb163b124bf77ddc82cfc8b2f9fb57c00fc6e133b7",
+    "9cscanUrl": "https://thor.9cscan.com",
+    "rpcEndpoints": {
+      "dp.gql": [
+        "http://thor-dp.9c.gg/graphql"
+      ],
+      "9cscan.rest": [
+        "https://api-thor.9cscan.com"
+      ],
+      "headless.gql": [
+        "https://thor-rpc-1.nine-chronicles.com/graphql"
+      ],
+      "headless.grpc": [
+        "http://thor-rpc-1.nine-chronicles.com:31238"
+      ],
+      "market.rest": [
+        "http://thor-market.9c.gg"
+      ],
+      "world-boss.rest": [
+        "http://thor-world-boss.9c.gg"
+      ],
+      "patrol-reward.gql": [
+        "http://thor-patrol.9c.gg/graphql"
+      ],
+      "arena.gql": [
+        "http://thor-arena.9c.gg/graphql"
+      ]
+    },
+    "bridges": {
+      "0x000000000000": {
+        "agent": "0x3e498a6A5cDbE027769F9502026c37Cb8613186e",
+        "avatar": "0x41E9Dc57F04cC561B68378490528e22a386ba9e1"
+      }
+    }
+  }
+]