diff --git a/apps/playground-web/src/app/insight/[blueprint_slug]/aggregate-parameter-input.client.tsx b/apps/playground-web/src/app/insight/[blueprint_slug]/aggregate-parameter-input.client.tsx
new file mode 100644
index 00000000000..b60637b8819
--- /dev/null
+++ b/apps/playground-web/src/app/insight/[blueprint_slug]/aggregate-parameter-input.client.tsx
@@ -0,0 +1,197 @@
+"use client";
+
+import { Input } from "@/components/ui/input";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "@/components/ui/select";
+import { cn } from "@/lib/utils";
+import type { ControllerRenderProps } from "react-hook-form";
+
+interface Preset {
+  label: string;
+  value: string;
+}
+
+const DEFAULT_AGGREGATE_PRESETS: Preset[] = [
+  { label: "Count All Items", value: "count() AS count_all" },
+  { label: "Sum (gas_used)", value: "sum(gas_used) AS total_gas_used" },
+  { label: "Average (gas_used)", value: "avg(gas_used) AS avg_gas_used" },
+  { label: "Min (gas_used)", value: "min(gas_used) AS min_gas_used" },
+  { label: "Max (gas_used)", value: "max(gas_used) AS max_gas_used" },
+  // Presets for a user-defined field
+  {
+    label: "Count (custom field)",
+    value: "count(your_field_here) AS count_custom",
+  },
+  { label: "Sum (custom field)", value: "sum(your_field_here) AS sum_custom" },
+  {
+    label: "Average (custom field)",
+    value: "avg(your_field_here) AS avg_custom",
+  },
+  { label: "Min (custom field)", value: "min(your_field_here) AS min_custom" },
+  { label: "Max (custom field)", value: "max(your_field_here) AS max_custom" },
+];
+
+const GENERAL_TRANSACTIONS_PRESETS: Preset[] = [
+  { label: "Transaction Count", value: "count() AS transaction_count" },
+  {
+    label: "Total Value Transferred (Wei)",
+    value: "sum(value) AS total_value_wei",
+  },
+  { label: "Total Gas Used", value: "sum(gas_used) AS total_gas_used" },
+  {
+    label: "Average Value Transferred (Wei)",
+    value: "avg(value) AS average_value_wei",
+  },
+  { label: "Average Gas Used", value: "avg(gas_used) AS average_gas_used" },
+  {
+    label: "Max Value Transferred (Wei)",
+    value: "max(value) AS max_value_wei",
+  },
+  { label: "Max Gas Used", value: "max(gas_used) AS max_gas_used" },
+  {
+    label: "Min Value Transferred (Wei)",
+    value: "min(value) AS min_value_wei",
+  },
+  { label: "Min Gas Used", value: "min(gas_used) AS min_gas_used" },
+];
+
+const WALLET_TRANSACTIONS_PRESETS: Preset[] = [
+  { label: "Wallet Transaction Count", value: "count() AS wallet_tx_count" },
+  {
+    label: "Wallet Total Value (Wei)",
+    value: "sum(value) AS wallet_total_value_wei",
+  },
+  {
+    label: "Wallet Total Gas Spent",
+    value: "sum(gas_used) AS wallet_total_gas_spent",
+  },
+  {
+    label: "Wallet Average Value (Wei)",
+    value: "avg(value) AS wallet_avg_value",
+  },
+  {
+    label: "Wallet Average Gas Spent",
+    value: "avg(gas_used) AS wallet_avg_gas_spent",
+  },
+  {
+    label: "Wallet Max Value Tx (Wei)",
+    value: "max(value) AS wallet_max_value_tx",
+  },
+  { label: "Wallet Max Gas Tx", value: "max(gas_used) AS wallet_max_gas_tx" },
+  {
+    label: "Wallet Min Value Tx (Wei)",
+    value: "min(value) AS wallet_min_value_tx",
+  },
+  { label: "Wallet Min Gas Tx", value: "min(gas_used) AS wallet_min_gas_tx" },
+];
+
+const EVENTS_PRESETS: Preset[] = [
+  { label: "Event Count", value: "count() AS event_count" },
+  {
+    label: "Unique Addresses",
+    value: "countDistinct(address) AS unique_addresses",
+  },
+  { label: "Min Block Number", value: "min(block_number) AS min_block" },
+  { label: "Max Block Number", value: "max(block_number) AS max_block" },
+];
+
+const BLOCKS_PRESETS: Preset[] = [
+  { label: "Block Count", value: "count() AS block_count" },
+  { label: "Min Block Number", value: "min(block_number) AS min_block_number" },
+  { label: "Max Block Number", value: "max(block_number) AS max_block_number" },
+  { label: "Total Gas Used", value: "sum(gas_used) AS total_gas_used" },
+  { label: "Average Gas Used", value: "avg(gas_used) AS avg_gas_used" },
+  { label: "Max Gas Used", value: "max(gas_used) AS max_gas_used" },
+  { label: "Min Gas Used", value: "min(gas_used) AS min_gas_used" },
+  {
+    label: "Total Transactions",
+    value: "sum(transaction_count) AS total_transactions",
+  },
+  {
+    label: "Average Transactions per Block",
+    value: "avg(transaction_count) AS avg_txs_per_block",
+  },
+  {
+    label: "Max Transactions in a Block",
+    value: "max(transaction_count) AS max_txs_in_block",
+  },
+  {
+    label: "Min Transactions in a Block",
+    value: "min(transaction_count) AS min_txs_in_block",
+  },
+];
+
+const ENDPOINT_SPECIFIC_PRESETS: Record<string, Preset[]> = {
+  "/v1/transactions": GENERAL_TRANSACTIONS_PRESETS,
+  "/v1/wallets/{wallet_address}/transactions": WALLET_TRANSACTIONS_PRESETS,
+  "/v1/events": EVENTS_PRESETS,
+  "/v1/blocks": BLOCKS_PRESETS,
+  // Add more endpoint paths and their specific presets here
+};
+
+function getAggregatePresets(endpointPath: string): Preset[] {
+  return ENDPOINT_SPECIFIC_PRESETS[endpointPath] || DEFAULT_AGGREGATE_PRESETS;
+}
+
+interface AggregateParameterInputProps {
+  field: ControllerRenderProps<
+    {
+      [x: string]: string | number;
+    },
+    string
+  >;
+  showTip: boolean;
+  hasError: boolean;
+  placeholder: string;
+  endpointPath: string; // New prop
+}
+
+export function AggregateParameterInput(props: AggregateParameterInputProps) {
+  const { field, showTip, hasError, placeholder, endpointPath } = props;
+  const { value, onChange } = field;
+
+  const presets = getAggregatePresets(endpointPath);
+
+  return (
+    <div className="flex flex-col space-y-1">
+      <Input
+        {...field}
+        className={cn(
+          "h-auto truncate rounded-none border-0 bg-transparent py-5 font-mono text-sm focus-visible:ring-0 focus-visible:ring-offset-0",
+          showTip && "lg:pr-10",
+          hasError && "text-destructive-text",
+        )}
+        placeholder={placeholder}
+      />
+      <Select
+        value={presets.find((p) => p.value === value)?.value || ""}
+        onValueChange={(selectedValue) => {
+          if (selectedValue) {
+            onChange({ target: { value: selectedValue } });
+          }
+        }}
+      >
+        <SelectTrigger
+          className={cn(
+            "h-8 border-dashed bg-transparent text-xs focus:ring-0 focus:ring-offset-0",
+            !presets.find((p) => p.value === value) && "text-muted-foreground",
+          )}
+        >
+          <SelectValue placeholder="Select a preset (optional)" />
+        </SelectTrigger>
+        <SelectContent className="font-mono">
+          {presets.map((preset) => (
+            <SelectItem key={preset.value} value={preset.value}>
+              {preset.label}
+            </SelectItem>
+          ))}
+        </SelectContent>
+      </Select>
+    </div>
+  );
+}
diff --git a/apps/playground-web/src/app/insight/[blueprint_slug]/blueprint-playground.client.tsx b/apps/playground-web/src/app/insight/[blueprint_slug]/blueprint-playground.client.tsx
index 3fc39f01028..46c60c6759e 100644
--- a/apps/playground-web/src/app/insight/[blueprint_slug]/blueprint-playground.client.tsx
+++ b/apps/playground-web/src/app/insight/[blueprint_slug]/blueprint-playground.client.tsx
@@ -35,6 +35,7 @@ import {
 import { z } from "zod";
 import { MultiNetworkSelector } from "../../../components/blocks/NetworkSelectors";
 import type { BlueprintParameter, BlueprintPathMetadata } from "../utils";
+import { AggregateParameterInput } from "./aggregate-parameter-input.client";
 
 export function BlueprintPlayground(props: {
   metadata: BlueprintPathMetadata;
@@ -426,7 +427,6 @@ function ParameterSection(props: {
   supportedChainIds: number[];
   className?: string;
 }) {
-  const url = `${props.domain}${props.path}`;
   return (
     <div className={cn("p-4 py-6", props.className)}>
       <h3 className="mb-3 font-medium text-sm"> {props.title} </h3>
@@ -450,12 +450,6 @@ function ParameterSection(props: {
 
           const hasError = !!props.form.formState.errors[param.name];
 
-          const placeholder = url.includes(`{${param.name}}`)
-            ? `{${param.name}}`
-            : url.includes(`:${param.name}`)
-              ? `:${param.name}`
-              : "Value";
-
           return (
             <FormField
               key={param.name}
@@ -521,7 +515,8 @@ function ParameterSection(props: {
                             }}
                             showTip={showTip}
                             hasError={hasError}
-                            placeholder={placeholder}
+                            placeholder={param.description || param.name}
+                            endpointPath={props.path}
                           />
 
                           {showTip && (
@@ -586,6 +581,7 @@ function ParameterInput(props: {
   showTip: boolean;
   hasError: boolean;
   placeholder: string;
+  endpointPath: string;
 }) {
   const { param, field, showTip, hasError, placeholder } = props;
 
@@ -622,6 +618,18 @@ function ParameterInput(props: {
     );
   }
 
+  if (param.name === "aggregate") {
+    return (
+      <AggregateParameterInput
+        field={field}
+        showTip={showTip}
+        hasError={hasError}
+        placeholder={placeholder}
+        endpointPath={props.endpointPath}
+      />
+    );
+  }
+
   return (
     <Input
       {...field}