diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1361881b..48ccfa59e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -39,6 +39,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Features
 
+- [#757](https://github.com/alleslabs/celatone-frontend/pull/757) api v1 - proposal data
 - [#731](https://github.com/alleslabs/celatone-frontend/pull/731) Add proposal detail page structure
 - [#749](https://github.com/alleslabs/celatone-frontend/pull/749) Add multi-type proposals
 - [#753](https://github.com/alleslabs/celatone-frontend/pull/753) api v1 - proposal type filter
diff --git a/src/lib/app-provider/env.ts b/src/lib/app-provider/env.ts
index faf280141..d74ca2b0c 100644
--- a/src/lib/app-provider/env.ts
+++ b/src/lib/app-provider/env.ts
@@ -51,6 +51,7 @@ export enum CELATONE_QUERY_KEYS {
   // FAUCET
   FAUCET_INFO = "CELATONE_QUERY_FAUCET_INFO",
   // X/GOV
+  PROPOSAL_DATA = "CELATONE_QUERY_PROPOSAL_DATA",
   RELATED_PROPOSALS_BY_CONTRACT_ADDRESS = "CELATONE_QUERY_RELATED_PROPOSALS_BY_CONTRACT_ADDRESS",
   PROPOSALS_BY_MODULE_ID = "CELATONE_QUERY_PROPOSALS_BY_MODULE_ID",
   PROPOSALS_COUNT_BY_MODULE_ID = "CELATONE_QUERY_PROPOSALS_COUNT_BY_MODULE_ID",
diff --git a/src/lib/components/table/proposals/ProposalsTable.tsx b/src/lib/components/table/proposals/ProposalsTable.tsx
index 65ad75314..1a9531c3c 100644
--- a/src/lib/components/table/proposals/ProposalsTable.tsx
+++ b/src/lib/components/table/proposals/ProposalsTable.tsx
@@ -30,10 +30,7 @@ export const ProposalsTable = ({
   return isMobile ? (
     <MobileTableContainer>
       {proposals.map((proposal) => (
-        <ProposalsTableMobileCard
-          key={proposal.proposalId}
-          proposal={proposal}
-        />
+        <ProposalsTableMobileCard key={proposal.id} proposal={proposal} />
       ))}
     </MobileTableContainer>
   ) : (
@@ -44,7 +41,7 @@ export const ProposalsTable = ({
       />
       {proposals.map((proposal) => (
         <ProposalsTableRow
-          key={proposal.proposalId}
+          key={proposal.id}
           proposal={proposal}
           templateColumns={templateColumns}
           boxShadow={boxShadow}
diff --git a/src/lib/components/table/proposals/ProposalsTableMobileCard.tsx b/src/lib/components/table/proposals/ProposalsTableMobileCard.tsx
index d8367cfa3..254ddae2f 100644
--- a/src/lib/components/table/proposals/ProposalsTableMobileCard.tsx
+++ b/src/lib/components/table/proposals/ProposalsTableMobileCard.tsx
@@ -39,7 +39,7 @@ export const ProposalsTableMobileCard = ({
             <ExplorerLink
               isReadOnly={isDepositFailed}
               type="proposal_id"
-              value={proposal.proposalId.toString()}
+              value={proposal.id.toString()}
               showCopyOnHover
             />
           </Flex>
@@ -101,7 +101,7 @@ export const ProposalsTableMobileCard = ({
                 getNavigationUrl({
                   type: "proposal_id",
                   explorerConfig: explorerLink,
-                  value: proposal.proposalId.toString(),
+                  value: proposal.id.toString(),
                   lcdEndpoint,
                 })
               );
diff --git a/src/lib/components/table/proposals/ProposalsTableRow.tsx b/src/lib/components/table/proposals/ProposalsTableRow.tsx
index 925ac4811..a0f30c1d1 100644
--- a/src/lib/components/table/proposals/ProposalsTableRow.tsx
+++ b/src/lib/components/table/proposals/ProposalsTableRow.tsx
@@ -62,7 +62,7 @@ export const ProposalsTableRow = ({
                 getNavigationUrl({
                   type: "proposal_id",
                   explorerConfig: explorerLink,
-                  value: proposal.proposalId.toString(),
+                  value: proposal.id.toString(),
                   lcdEndpoint,
                 })
               );
@@ -74,7 +74,7 @@ export const ProposalsTableRow = ({
         <ExplorerLink
           isReadOnly={isDepositFailed}
           type="proposal_id"
-          value={proposal.proposalId.toString()}
+          value={proposal.id.toString()}
           showCopyOnHover
           ampCopierSection="proposal-list"
         />
diff --git a/src/lib/services/proposal.ts b/src/lib/services/proposal.ts
index 382bcee8e..74f65099a 100644
--- a/src/lib/services/proposal.ts
+++ b/src/lib/services/proposal.ts
@@ -2,7 +2,13 @@ import type { Coin } from "@cosmjs/stargate";
 import axios from "axios";
 import { z } from "zod";
 
-import { zUtcDate, zProposalType, zBechAddr, zProposalStatus } from "lib/types";
+import {
+  zBechAddr,
+  zCoin,
+  zProposalStatus,
+  zProposalType,
+  zUtcDate,
+} from "lib/types";
 import type {
   AccessConfigPermission,
   BechAddr,
@@ -11,6 +17,7 @@ import type {
   Proposal,
   Option,
   BechAddr20,
+  ProposalData,
   ProposalStatus,
   ProposalType,
 } from "lib/types";
@@ -72,29 +79,18 @@ export const getProposalTypes = async (endpoint: string) =>
     .get(`${endpoint}/types`)
     .then(({ data }) => zProposalType.array().parse(data));
 
-const zProposalsResponseItem = z
-  .object({
-    deposit_end_time: zUtcDate,
-    id: z.number().nonnegative(),
-    is_expedited: z.boolean(),
-    proposer: zBechAddr,
-    resolved_height: z.number().nullable(),
-    status: zProposalStatus,
-    title: z.string(),
-    types: zProposalType.array(),
-    voting_end_time: zUtcDate.nullable(),
-  })
-  .transform<Proposal>((val) => ({
-    depositEndTime: val.deposit_end_time,
-    proposalId: val.id,
-    isExpedited: val.is_expedited,
-    proposer: val.proposer,
-    resolvedHeight: val.resolved_height,
-    status: val.status,
-    title: val.title,
-    types: val.types,
-    votingEndTime: val.voting_end_time,
-  }));
+const zProposal = z.object({
+  deposit_end_time: zUtcDate,
+  id: z.number().nonnegative(),
+  is_expedited: z.boolean(),
+  proposer: zBechAddr,
+  resolved_height: z.number().nullable(),
+  status: zProposalStatus,
+  title: z.string(),
+  types: zProposalType.array(),
+  voting_end_time: zUtcDate.nullable(),
+});
+const zProposalsResponseItem = zProposal.transform<Proposal>(snakeToCamel);
 
 const zProposalsResponse = z.object({
   items: z.array(zProposalsResponseItem),
@@ -164,3 +160,42 @@ export const getRelatedProposalsByContractAddress = async (
       }
     )
     .then(({ data }) => zRelatedProposalsResponse.parse(data));
+
+const zProposalDataResponse = z.object({
+  info: zProposal
+    .extend({
+      created_height: z.number().nullable(),
+      created_timestamp: zUtcDate.nullable(),
+      created_tx_hash: z.string().nullable(),
+      description: z.string(),
+      messages: z.unknown().array().nullable(),
+      metadata: z.string(),
+      proposal_deposits: z
+        .object({
+          amount: zCoin.array(),
+          depositor: zBechAddr,
+          timestamp: zUtcDate,
+          tx_hash: z.string(),
+        })
+        .array(),
+      resolved_timestamp: zUtcDate.nullable(),
+      submit_time: zUtcDate,
+      total_deposit: zCoin.array(),
+      version: z.string(),
+      voting_time: zUtcDate.nullable(),
+    })
+    .transform<ProposalData>(({ messages, ...val }) => ({
+      ...snakeToCamel(val),
+      messages,
+    }))
+    .nullable(),
+});
+export type ProposalDataResponse = z.infer<typeof zProposalDataResponse>;
+
+export const getProposalData = async (
+  endpoint: string,
+  id: number
+): Promise<ProposalDataResponse> =>
+  axios
+    .get(`${endpoint}/${encodeURIComponent(id)}/info`)
+    .then(({ data }) => zProposalDataResponse.parse(data));
diff --git a/src/lib/services/proposalService.ts b/src/lib/services/proposalService.ts
index 0ce729a43..db01582ea 100644
--- a/src/lib/services/proposalService.ts
+++ b/src/lib/services/proposalService.ts
@@ -38,6 +38,7 @@ import { useAssetInfos } from "./assetService";
 import { useMovePoolInfos } from "./move";
 import type {
   DepositParamsInternal,
+  ProposalDataResponse,
   ProposalsResponse,
   RelatedProposalsResponse,
   UploadAccess,
@@ -51,6 +52,7 @@ import {
   getRelatedProposalsByContractAddress,
   getProposals,
   getProposalTypes,
+  getProposalData,
 } from "./proposal";
 
 export const useProposals = (
@@ -163,7 +165,7 @@ export const useRelatedProposalsByModuleIdPagination = (
       })
       .then(({ module_proposals }) =>
         module_proposals.map<Proposal>((proposal) => ({
-          proposalId: proposal.proposal_id,
+          id: proposal.proposal_id,
           title: proposal.proposal.title,
           status: proposal.proposal.status as ProposalStatus,
           votingEndTime: parseDate(proposal.proposal.voting_end_time),
@@ -222,6 +224,16 @@ export const useRelatedProposalsCountByModuleId = (
   );
 };
 
+export const useProposalData = (id: number) => {
+  const endpoint = useBaseApiRoute("proposals");
+
+  return useQuery<ProposalDataResponse>(
+    [CELATONE_QUERY_KEYS.PROPOSAL_DATA, endpoint, id],
+    async () => getProposalData(endpoint, id),
+    { retry: 1, keepPreviousData: true }
+  );
+};
+
 export interface MinDeposit {
   amount: U<Token<Big>>;
   denom: string;
diff --git a/src/lib/types/asset.ts b/src/lib/types/asset.ts
index 73a920854..4fafdb768 100644
--- a/src/lib/types/asset.ts
+++ b/src/lib/types/asset.ts
@@ -3,6 +3,11 @@ import { z } from "zod";
 
 import type { PoolInfo, Option, Token, U, USD } from "lib/types";
 
+export const zCoin = z.object({
+  denom: z.string(),
+  amount: z.string(),
+});
+
 export const zAssetInfo = z.object({
   coingecko: z.string(),
   description: z.string(),
diff --git a/src/lib/types/proposal.ts b/src/lib/types/proposal.ts
index bdf7f66de..8efbb6b56 100644
--- a/src/lib/types/proposal.ts
+++ b/src/lib/types/proposal.ts
@@ -1,3 +1,4 @@
+import type { Coin } from "@cosmjs/amino";
 import { z } from "zod";
 
 import type { BechAddr, Nullable, Option } from "lib/types";
@@ -57,7 +58,7 @@ export const zProposalType = z.union([
 export type ProposalType = z.infer<typeof zProposalType>;
 
 export interface Proposal {
-  proposalId: number;
+  id: number;
   title: string;
   status: ProposalStatus;
   votingEndTime: Nullable<Date>;
@@ -67,3 +68,25 @@ export interface Proposal {
   proposer: Option<BechAddr>;
   isExpedited: boolean;
 }
+
+export interface ProposalDeposit {
+  amount: Coin[];
+  depositor: BechAddr;
+  timestamp: Date;
+  txHash: string;
+}
+
+export interface ProposalData extends Proposal {
+  createdHeight: Nullable<number>;
+  createdTimestamp: Nullable<Date>;
+  createdTxHash: Nullable<string>;
+  description: string;
+  messages: Nullable<unknown[]>;
+  metadata: string;
+  proposalDeposits: ProposalDeposit[];
+  resolvedTimestamp: Nullable<Date>;
+  submitTime: Date;
+  totalDeposit: Coin[];
+  version: string;
+  votingTime: Nullable<Date>;
+}