diff --git a/deno.lock b/deno.lock
index 8188ee630..91810bce9 100644
--- a/deno.lock
+++ b/deno.lock
@@ -13759,6 +13759,11 @@
           "npm:js-sha3@~0.9.3"
         ]
       },
+      "packages/paima-sdk/test": {
+        "dependencies": [
+          "npm:@sinclair/typebox@~0.34.30"
+        ]
+      },
       "packages/paima-sdk/utils": {
         "dependencies": [
           "npm:@coderspirit/nominal@^4.1.1",
diff --git a/packages/paima-sdk/config/src/schema/utils.ts b/packages/paima-sdk/config/src/schema/utils.ts
index 462cf64c7..c3c531770 100644
--- a/packages/paima-sdk/config/src/schema/utils.ts
+++ b/packages/paima-sdk/config/src/schema/utils.ts
@@ -122,3 +122,24 @@ export class ConfigSchema<
     }) as any;
   };
 }
+
+export function createSchema<
+  Base extends ConfigSchema<ObjectLike, ObjectLike>,
+  Required extends ObjectLike,
+  Optional extends ObjectLike,
+>(
+  params: {
+    base: Base;
+    required: Required;
+    optional: Optional;
+  },
+) {
+  const config = params.base.cloneMerge({
+    required: params.required,
+    optional: params.optional,
+  });
+  const optionalProps = config.allProperties(false);
+  const allProps = config.allProperties(true);
+
+  return { optionalProps, allProps };
+}
diff --git a/packages/paima-sdk/test/deno.json b/packages/paima-sdk/test/deno.json
new file mode 100644
index 000000000..4bb24f468
--- /dev/null
+++ b/packages/paima-sdk/test/deno.json
@@ -0,0 +1,8 @@
+{
+  "name": "@paima/test",
+  "version": "0.3.0",
+  "exports": "./src/mod.ts",
+  "imports": {
+    "@sinclair/typebox": "npm:@sinclair/typebox@^0.34.30"
+  }
+}
diff --git a/packages/paima-sdk/test/src/base.ts b/packages/paima-sdk/test/src/base.ts
new file mode 100644
index 000000000..57eab2b88
--- /dev/null
+++ b/packages/paima-sdk/test/src/base.ts
@@ -0,0 +1,38 @@
+import { ConfigPrimitivePayloadType, ConfigPrimitiveType } from "@paima/config";
+import { type TIntersect, type TObject, type TSchema } from "@sinclair/typebox";
+import type { BlockNumber } from "@paima/utils";
+
+export interface EvmPrimitive<Data extends PrimitiveData> {
+  data: Data;
+  fetchData: () => void; // TODO
+  createViews: () => void;
+  createScheduledData: (
+    paima_block_height: BlockNumber,
+    payload: Data["payloadType"],
+  ) => void;
+}
+
+export type BasePrimitivePayloadType = {
+  type: ConfigPrimitivePayloadType;
+  payload: TObject;
+};
+export abstract class BasePrimitive<
+  Data extends { payloadType: BasePrimitivePayloadType },
+> {
+  abstract fetchData(): void; // TODO
+  createViews(): void {}
+  abstract createScheduledData(
+    paima_block_height: BlockNumber,
+    payload: Data["payloadType"],
+  ): void;
+}
+
+export interface PrimitiveData {
+  readonly payloadType: BasePrimitivePayloadType;
+  readonly schema: {
+    required: TIntersect<any>;
+    optional: TIntersect<any>;
+  };
+  readonly primitiveType: ConfigPrimitiveType;
+  readonly transitions: Record<string, [string, TSchema][]>;
+}
diff --git a/packages/paima-sdk/test/src/builtin.ts b/packages/paima-sdk/test/src/builtin.ts
new file mode 100644
index 000000000..536576d62
--- /dev/null
+++ b/packages/paima-sdk/test/src/builtin.ts
@@ -0,0 +1,83 @@
+import {
+  ConfigPrimitivePayloadType,
+  ConfigPrimitiveType,
+  createSchema,
+  PrimitiveConfigBaseEvm,
+} from "@paima/config";
+import { pickAll } from "@paima/utils";
+import { TypeboxHelpers } from "@paima/utils";
+import { type Static, Type } from "@sinclair/typebox";
+import type { BlockNumber } from "@paima/utils";
+import { Value } from "@sinclair/typebox/value";
+import { BasePrimitive } from "./base.ts";
+
+const payloadType = {
+  type: ConfigPrimitivePayloadType.Transfer,
+  payload: Type.Object({
+    from: TypeboxHelpers.Evm.Address,
+    to: TypeboxHelpers.Evm.Address,
+    value: TypeboxHelpers.Uint256,
+  }),
+};
+const PrimitiveDataErc20 = {
+  payloadType,
+  schema: createSchema({
+    base: PrimitiveConfigBaseEvm,
+    required: Type.Object({
+      type: Type.Literal(ConfigPrimitiveType.EvmRpcERC20),
+      contractAddress: TypeboxHelpers.Evm.Address,
+    }),
+    optional: Type.Object({
+      scheduledPrefix: Type.String(),
+    }),
+  }),
+  primitiveType: ConfigPrimitiveType.EvmRpcERC20,
+  transitions: {
+    transferScheduledPrefix: pickAll(["from", "to", "value"]).from(
+      payloadType.payload,
+    ),
+  },
+};
+
+type DataType = typeof PrimitiveDataErc20;
+class Erc20Primitive extends BasePrimitive<DataType> {
+  config: Static<typeof PrimitiveDataErc20.schema.allProps>;
+  data: DataType;
+
+  constructor(
+    props: Static<typeof PrimitiveDataErc20.schema.optionalProps>,
+  ) {
+    super();
+    this.data = PrimitiveDataErc20;
+    this.config = Value.Default(
+      PrimitiveDataErc20.schema.allProps,
+      props,
+    ) as typeof this.config;
+  }
+  override createViews = () => {
+    // TODO: views for erc20
+  };
+  fetchData = () => {
+  };
+
+  createScheduledData(
+    paima_block_height: BlockNumber,
+    payload: DataType["payloadType"],
+  ): void {
+    console.log(paima_block_height, payload);
+    // yield* World.resolve(insertPrimitiveAccounting, {
+    //   primitive_name: name,
+    //   paima_block_height: paima_block_height,
+    //   payload_type: ConfigPrimitiveAccountingPayloadType.Transfer,
+    //   payload: clearBigInts(payload) satisfies PayloadOf<
+    //     typeof PrimitiveEvmRpcErc20TransferAccounting
+    //   >,
+    // });
+  }
+}
+
+declare module "@paima/test" {
+  interface SomeGlobalNamespace {
+    Erc20Primitive: typeof Erc20Primitive;
+  }
+}
diff --git a/packages/paima-sdk/test/src/mod.ts b/packages/paima-sdk/test/src/mod.ts
new file mode 100644
index 000000000..ee3fe2136
--- /dev/null
+++ b/packages/paima-sdk/test/src/mod.ts
@@ -0,0 +1 @@
+export type { RegisteredComponents } from "./builtin.ts";
diff --git a/packages/paima-sdk/test2/deno.json b/packages/paima-sdk/test2/deno.json
new file mode 100644
index 000000000..c1b1da455
--- /dev/null
+++ b/packages/paima-sdk/test2/deno.json
@@ -0,0 +1,7 @@
+{
+  "name": "@paima/test2",
+  "version": "0.3.0",
+  "exports": "./src/mod.ts",
+  "imports": {
+  }
+}
diff --git a/packages/paima-sdk/test2/src/mod.ts b/packages/paima-sdk/test2/src/mod.ts
new file mode 100644
index 000000000..4b3e5347d
--- /dev/null
+++ b/packages/paima-sdk/test2/src/mod.ts
@@ -0,0 +1,5 @@
+import type { SomeGlobalNamespace } from "@paima/test";
+
+type ComponentName = keyof SomeGlobalNamespace;
+
+const foo: ComponentName = "Erc20Primitive";
diff --git a/packages/paima-sdk/utils/src/types/utils.ts b/packages/paima-sdk/utils/src/types/utils.ts
index 691ddc929..3fb3d57b6 100644
--- a/packages/paima-sdk/utils/src/types/utils.ts
+++ b/packages/paima-sdk/utils/src/types/utils.ts
@@ -58,3 +58,12 @@ export function keysOf<Key extends number | string>(
 ): Key[] {
   return Object.keys(obj) as Key[];
 }
+
+export function clearBigInts<T>(value: T): T {
+  return JSON.parse(
+    JSON.stringify(
+      value,
+      (_, v) => typeof v === "bigint" ? v.toString() : v,
+    ),
+  );
+}