diff --git a/robosystems_client/clients/ledger_client.py b/robosystems_client/clients/ledger_client.py
index 2c96151..bfa0000 100644
--- a/robosystems_client/clients/ledger_client.py
+++ b/robosystems_client/clients/ledger_client.py
@@ -148,8 +148,10 @@
 from ..graphql.queries.ledger import (
   GET_ACCOUNT_ROLLUPS_QUERY,
   GET_ACCOUNT_TREE_QUERY,
+  GET_AGENT_QUERY,
   GET_CLOSING_BOOK_STRUCTURES_QUERY,
   GET_ENTITY_QUERY,
+  GET_EVENT_BLOCK_QUERY,
   GET_FISCAL_CALENDAR_QUERY,
   GET_MAPPED_TRIAL_BALANCE_QUERY,
   GET_MAPPING_COVERAGE_QUERY,
@@ -162,8 +164,10 @@
   GET_TRANSACTION_QUERY,
   GET_TRIAL_BALANCE_QUERY,
   LIST_ACCOUNTS_QUERY,
+  LIST_AGENTS_QUERY,
   LIST_ELEMENTS_QUERY,
   LIST_ENTITIES_QUERY,
+  LIST_EVENT_BLOCKS_QUERY,
   LIST_INFORMATION_BLOCKS_QUERY,
   LIST_MAPPINGS_QUERY,
   LIST_STRUCTURES_QUERY,
@@ -173,10 +177,14 @@
   parse_account_rollups,
   parse_account_tree,
   parse_accounts,
+  parse_agent,
+  parse_agents,
   parse_closing_book_structures,
   parse_elements,
   parse_entities,
   parse_entity,
+  parse_event_block,
+  parse_event_blocks,
   parse_fiscal_calendar,
   parse_information_block,
   parse_information_blocks,
@@ -510,6 +518,70 @@ def get_transaction(
     )
     return parse_transaction(data)
 
+  # ── Event blocks (inbox surface) ───────────────────────────────────
+
+  def list_event_blocks(
+    self,
+    graph_id: str,
+    event_type: str | None = None,
+    event_category: str | None = None,
+    status: str | None = None,
+    agent_id: str | None = None,
+    source: str | None = None,
+    limit: int = 50,
+    offset: int = 0,
+  ) -> list[dict[str, Any]]:
+    """List captured event blocks (inbox surface)."""
+    data = self._query(
+      graph_id,
+      LIST_EVENT_BLOCKS_QUERY,
+      {
+        "eventType": event_type,
+        "eventCategory": event_category,
+        "status": status,
+        "agentId": agent_id,
+        "source": source,
+        "limit": limit,
+        "offset": offset,
+      },
+    )
+    return parse_event_blocks(data)
+
+  def get_event_block(self, graph_id: str, event_id: str) -> dict[str, Any] | None:
+    """Get event block detail by id."""
+    data = self._query(graph_id, GET_EVENT_BLOCK_QUERY, {"id": event_id})
+    return parse_event_block(data)
+
+  # ── Agents (REA counterparties) ────────────────────────────────────
+
+  def list_agents(
+    self,
+    graph_id: str,
+    agent_type: str | None = None,
+    source: str | None = None,
+    is_active: bool | None = True,
+    limit: int = 50,
+    offset: int = 0,
+  ) -> list[dict[str, Any]]:
+    """List agents (customers, vendors, employees)."""
+    data = self._query(
+      graph_id,
+      LIST_AGENTS_QUERY,
+      {
+        "agentType": agent_type,
+        "source": source,
+        "isActive": is_active,
+        "limit": limit,
+        "offset": offset,
+      },
+    )
+    return parse_agents(data)
+
+  def get_agent(self, graph_id: str, agent_id: str) -> dict[str, Any] | None:
+    """Get agent detail by id."""
+    data = self._query(graph_id, GET_AGENT_QUERY, {"id": agent_id})
+    return parse_agent(data)
+
   # ── Trial balance ──────────────────────────────────────────────────
 
   def get_trial_balance(
diff --git a/robosystems_client/graphql/queries/ledger/__init__.py b/robosystems_client/graphql/queries/ledger/__init__.py
index 92843df..50ea329 100644
--- a/robosystems_client/graphql/queries/ledger/__init__.py
+++ b/robosystems_client/graphql/queries/ledger/__init__.py
@@ -340,6 +340,106 @@ def parse_transaction(data: dict[str, Any]) -> dict[str, Any] | None:
   return keys_to_snake(tx) if tx is not None else None
 
 
+# ── Event blocks (inbox) ───────────────────────────────────────────────
+
+LIST_EVENT_BLOCKS_QUERY = """
+query ListLedgerEventBlocks(
+  $eventType: String
+  $eventCategory: String
+  $status: String
+  $agentId: String
+  $source: String
+  $limit: Int! = 50
+  $offset: Int! = 0
+) {
+  eventBlocks(
+    eventType: $eventType
+    eventCategory: $eventCategory
+    status: $status
+    agentId: $agentId
+    source: $source
+    limit: $limit
+    offset: $offset
+  ) {
+    id eventType eventCategory eventClass status occurredAt effectiveAt
+    source externalId externalUrl amount currency description metadata
+    dimensionIds agentId resourceType resourceElementId
+    replacedByEventId replacesEventId obligatedByEventId dischargesEventId
+    createdAt createdBy
+  }
+}
+""".strip()
+
+
+def parse_event_blocks(data: dict[str, Any]) -> list[dict[str, Any]]:
+  events = data.get("eventBlocks") or []
+  return [keys_to_snake(e) for e in events]
+
+
+GET_EVENT_BLOCK_QUERY = """
+query GetLedgerEventBlock($id: String!) {
+  eventBlock(id: $id) {
+    id eventType eventCategory eventClass status occurredAt effectiveAt
+    source externalId externalUrl amount currency description metadata
+    dimensionIds agentId resourceType resourceElementId
+    replacedByEventId replacesEventId obligatedByEventId dischargesEventId
+    createdAt createdBy
+  }
+}
+""".strip()
+
+
+def parse_event_block(data: dict[str, Any]) -> dict[str, Any] | None:
+  e = data.get("eventBlock")
+  return keys_to_snake(e) if e is not None else None
+
+
+# ── Agents (REA counterparties) ────────────────────────────────────────
+
+LIST_AGENTS_QUERY = """
+query ListLedgerAgents(
+  $agentType: String
+  $source: String
+  $isActive: Boolean = true
+  $limit: Int! = 50
+  $offset: Int! = 0
+) {
+  agents(
+    agentType: $agentType
+    source: $source
+    isActive: $isActive
+    limit: $limit
+    offset: $offset
+  ) {
+    id agentType name legalName taxId registrationNumber duns lei
+    email phone address source externalId
+    isActive is1099Recipient createdAt updatedAt createdBy
+  }
+}
+""".strip()
+
+
+def parse_agents(data: dict[str, Any]) -> list[dict[str, Any]]:
+  agents = data.get("agents") or []
+  return [keys_to_snake(a) for a in agents]
+
+
+GET_AGENT_QUERY = """
+query GetLedgerAgent($id: String!) {
+  agent(id: $id) {
+    id agentType name legalName taxId registrationNumber duns lei
+    email phone address source externalId
+    isActive is1099Recipient createdAt updatedAt createdBy
+  }
+}
+""".strip()
+
+
+def parse_agent(data: dict[str, Any]) -> dict[str, Any] | None:
+  a = data.get("agent")
+  return keys_to_snake(a) if a is not None else None
+
+
 # ── Taxonomy ───────────────────────────────────────────────────────────
 
 GET_REPORTING_TAXONOMY_QUERY = """
diff --git a/tests/test_ledger_client.py b/tests/test_ledger_client.py
index 9a40c80..7ee2ef8 100644
--- a/tests/test_ledger_client.py
+++ b/tests/test_ledger_client.py
@@ -745,6 +745,159 @@ def test_get_transaction(self, mock_execute, mock_config, graph_id):
     variables = mock_execute.call_args[0][2]
     assert variables["transactionId"] == "tx_1"
 
+  @patch("robosystems_client.graphql.client.GraphQLClient.execute")
+  def test_list_event_blocks(self, mock_execute, mock_config, graph_id):
+    mock_execute.return_value = {
+      "eventBlocks": [
+        {
+          "id": "evt_1",
+          "eventType": "invoice_issued",
+          "eventCategory": "sales",
+          "eventClass": "economic",
+          "status": "captured",
+          "occurredAt": "2026-03-15T00:00:00Z",
+          "effectiveAt": None,
+          "source": "quickbooks",
+          "externalId": "Invoice_9",
+          "externalUrl": None,
+          "amount": 10800,
+          "currency": "USD",
+          "description": None,
+          "metadata": {"qb_txn_type": "Invoice"},
+          "dimensionIds": [],
+          "agentId": "agt_1",
+          "resourceType": None,
+          "resourceElementId": None,
+          "replacedByEventId": None,
+          "replacesEventId": None,
+          "obligatedByEventId": None,
+          "dischargesEventId": None,
+          "createdAt": "2026-03-15T12:00:00Z",
+          "createdBy": "user_1",
+        }
+      ]
+    }
+    client = LedgerClient(mock_config)
+    result = client.list_event_blocks(
+      graph_id, event_type="invoice_issued", status="captured"
+    )
+    assert len(result) == 1
+    assert result[0]["id"] == "evt_1"
+    assert result[0]["agent_id"] == "agt_1"
+    variables = mock_execute.call_args[0][2]
+    assert variables["eventType"] == "invoice_issued"
+    assert variables["status"] == "captured"
+
+  @patch("robosystems_client.graphql.client.GraphQLClient.execute")
+  def test_get_event_block(self, mock_execute, mock_config, graph_id):
+    mock_execute.return_value = {
+      "eventBlock": {
+        "id": "evt_1",
+        "eventType": "invoice_issued",
+        "eventCategory": "sales",
+        "eventClass": "economic",
+        "status": "captured",
+        "occurredAt": "2026-03-15T00:00:00Z",
+        "effectiveAt": None,
+        "source": "quickbooks",
+        "externalId": "Invoice_9",
+        "externalUrl": None,
+        "amount": 10800,
+        "currency": "USD",
+        "description": None,
+        "metadata": {},
+        "dimensionIds": [],
+        "agentId": "agt_1",
+        "resourceType": None,
+        "resourceElementId": None,
+        "replacedByEventId": None,
+        "replacesEventId": None,
+        "obligatedByEventId": None,
+        "dischargesEventId": None,
+        "createdAt": "2026-03-15T12:00:00Z",
+        "createdBy": "user_1",
+      }
+    }
+    client = LedgerClient(mock_config)
+    result = client.get_event_block(graph_id, "evt_1")
+    assert result is not None
+    assert result["id"] == "evt_1"
+    variables = mock_execute.call_args[0][2]
+    assert variables["id"] == "evt_1"
+
+  @patch("robosystems_client.graphql.client.GraphQLClient.execute")
+  def test_get_event_block_returns_none_when_missing(
+    self, mock_execute, mock_config, graph_id
+  ):
+    mock_execute.return_value = {"eventBlock": None}
+    client = LedgerClient(mock_config)
+    assert client.get_event_block(graph_id, "evt_missing") is None
+
+  @patch("robosystems_client.graphql.client.GraphQLClient.execute")
+  def test_list_agents(self, mock_execute, mock_config, graph_id):
+    mock_execute.return_value = {
+      "agents": [
+        {
+          "id": "agt_1",
+          "agentType": "customer",
+          "name": "Amy's Bird Sanctuary",
+          "legalName": None,
+          "taxId": None,
+          "registrationNumber": None,
+          "duns": None,
+          "lei": None,
+          "email": "birds@intuit.com",
+          "phone": "(650) 555-3311",
+          "address": None,
+          "source": "quickbooks",
+          "externalId": "1",
+          "isActive": True,
+          "is1099Recipient": False,
+          "createdAt": "2026-03-15T12:00:00Z",
+          "updatedAt": "2026-03-15T12:00:00Z",
+          "createdBy": "user_1",
+        }
+      ]
+    }
+    client = LedgerClient(mock_config)
+    result = client.list_agents(graph_id, agent_type="customer")
+    assert len(result) == 1
+    assert result[0]["agent_type"] == "customer"
+    variables = mock_execute.call_args[0][2]
+    assert variables["agentType"] == "customer"
+    assert variables["isActive"] is True
+
+  @patch("robosystems_client.graphql.client.GraphQLClient.execute")
+  def test_get_agent(self, mock_execute, mock_config, graph_id):
+    mock_execute.return_value = {
+      "agent": {
+        "id": "agt_1",
+        "agentType": "customer",
+        "name": "Amy's Bird Sanctuary",
+        "legalName": None,
+        "taxId": None,
+        "registrationNumber": None,
+        "duns": None,
+        "lei": None,
+        "email": None,
+        "phone": None,
+        "address": None,
+        "source": "quickbooks",
+        "externalId": "1",
+        "isActive": True,
+        "is1099Recipient": False,
+        "createdAt": "2026-03-15T12:00:00Z",
+        "updatedAt": "2026-03-15T12:00:00Z",
+        "createdBy": "user_1",
+      }
+    }
+    client = LedgerClient(mock_config)
+    result = client.get_agent(graph_id, "agt_1")
+    assert result is not None
+    assert result["id"] == "agt_1"
+    variables = mock_execute.call_args[0][2]
+    assert variables["id"] == "agt_1"
+
   @patch("robosystems_client.graphql.client.GraphQLClient.execute")
   def test_get_mapped_trial_balance(self, mock_execute, mock_config, graph_id):
     mock_execute.return_value = {