diff --git a/Makefile b/Makefile
index ac4184a..feb5e54 100644
--- a/Makefile
+++ b/Makefile
@@ -60,6 +60,12 @@ ingest-starknet:
 		--first-block 600000 \
 		--chunk-size 256
 
+ingest-starknet-to-json:
+	@python3 -m sqa.starknet.writer json/starknet \
+		-e ${STARKNET_NODE} \
+		--first-block 600000 \
+		--chunk-size 256 \
+		--raw
 
 router:
 	@python3 tests/fake_router.py
diff --git a/sqa/starknet/writer/main.py b/sqa/starknet/writer/main.py
index 700be47..de0aa13 100644
--- a/sqa/starknet/writer/main.py
+++ b/sqa/starknet/writer/main.py
@@ -4,7 +4,7 @@
 import threading
 from functools import cache
 from queue import Queue
-from typing import AsyncIterator, Iterable
+from typing import AsyncIterator, Iterable, Generator
 
 from sqa.eth.ingest.main import EndpointAction
 from sqa.starknet.writer.ingest import IngestStarknet
@@ -20,7 +20,7 @@
 
 
 async def rpc_ingest(rpc: RpcClient, first_block: int, last_block: int | None = None) -> AsyncIterator[list[WriterBlock]]:
-    LOG.info(f'ingesting data via RPC')
+    LOG.info('Ingesting data via RPC')
 
     # TODO: ensure starknet finality for finality_confirmation arg
     ingest = IngestStarknet(
@@ -36,12 +36,12 @@ async def rpc_ingest(rpc: RpcClient, first_block: int, last_block: int | None =
         ingest.close()
 
 
-def _to_sync_gen(gen):
+def _to_sync_gen(gen: AsyncIterator) -> Generator:
     q = Queue(maxsize=5)
 
     async def consume_gen():
         try:
-            async for it in gen():
+            async for it in gen:
                 q.put(it)
             q.put(None)
         except Exception as ex:
@@ -83,6 +83,13 @@ def _arguments(self):
             help='rpc api url of an ethereum node to fetch data from'
         )
 
+        program.add_argument(
+            '-s', '--src',
+            type=str,
+            metavar='URL',
+            help='URL of the data ingestion service'
+        )
+
         program.add_argument(
             '--batch-limit',
             dest='batch_limit',
@@ -127,10 +134,26 @@ def _arguments(self):
             help='port to use for built-in prometheus metrics server'
         )
 
+        program.add_argument(
+            '--raw',
+            action='store_true',
+            help='use raw .jsonl.gz format'
+        )
+
+        program.add_argument(
+            '--raw-src',
+            action='store_true',
+            help='archive with raw, pre-fetched .jsonl.gz data'
+        )
+
         return program.parse_args()
 
     def _ingest(self) -> Iterable[list[WriterBlock]]:  # type: ignore  # NOTE: incopatible block type with dict type
         args = self._arguments()
+
+        if args.raw_src: # use raw ingester from sqa.writer
+            yield from super()._ingest()  # type: ignore  # NOTE: block is block
+
         endpoints = [RpcEndpoint(**e) for e in args.endpoints]
         if endpoints:
             rpc = RpcClient(
@@ -142,11 +165,20 @@ def _ingest(self) -> Iterable[list[WriterBlock]]:  # type: ignore  # NOTE: incop
 
         assert rpc, 'no endpoints were specified'
 
-        return _to_sync_gen(lambda: rpc_ingest(rpc, args.first_block, args.last_block))
+        yield from _to_sync_gen(rpc_ingest(rpc, self._sink().get_next_block(), args.last_block))
 
     def create_writer(self) -> Writer:
         return ParquetWriter()
 
+    def main(self):
+        args = self._arguments()
+        if args.raw:
+            self.init_support_services()
+            sink = self._sink()
+            sink._raw_writer(self._ingest())
+        else:
+            super().main()
+
 
 def main(module_name: str) -> None:
     _CLI(module_name).main()
diff --git a/sqa/writer/__init__.py b/sqa/writer/__init__.py
index 328889d..ec637b6 100644
--- a/sqa/writer/__init__.py
+++ b/sqa/writer/__init__.py
@@ -1,10 +1,15 @@
+import json
 import logging
 import math
+import os
+import tempfile
 import time
 from functools import cached_property
 from typing import Iterable, Protocol, Any
 
-from sqa.fs import create_fs, Fs
+import pyarrow
+
+from sqa.fs import LocalFs, create_fs, Fs
 from sqa.layout import ChunkWriter
 from sqa.util.counters import Progress
 
@@ -166,14 +171,55 @@ def flush():
                 self._report()
                 last_report = current_time
 
-        if self._writer.buffered_bytes() > 0 and last_block == write_range[1]:
-            flush()
+        # NOTE: In case no chunks were made we still need to save data we received
+        flush()
 
         self._writer.end()
 
         if self._progress.has_news():
             self._report()
 
+    def _raw_writer(self, strides: Iterable[list[Block]]) -> None:
+        # heavily copied from sqa.eth.ingest.main._raw_writer
+        while True:
+            written = 0
+            first_block = math.inf
+            tmp = tempfile.NamedTemporaryFile(delete=False)
+            try:
+                with tmp, pyarrow.CompressedOutputStream(tmp, 'gzip') as out:
+                    for bb in strides:
+                        first_block = min(first_block, bb[0]['number'])
+                        last_block = bb[-1]['number']
+                        last_hash = bb[-1]['hash']
+
+                        for block in bb:
+                            line = json.dumps(block).encode('utf-8')
+                            out.write(line)
+                            out.write(b'\n')
+                            written += len(line) + 1
+
+                        if written > self._chunk_size * 1024 * 1024:
+                            break
+
+                if written > 0:
+                    chunk = self._chunk_writer.next_chunk(first_block, last_block, _short_hash(last_hash))
+                    dest = f'{chunk.path()}/blocks.jsonl.gz'
+                    if isinstance(self._fs, LocalFs):
+                        loc = self._fs.abs(dest)
+                        os.makedirs(os.path.dirname(loc), exist_ok=True)
+                        os.rename(tmp.name, loc)
+                    else:
+                        # from _upload_temp_file function
+                        try:
+                            self._fs.upload(tmp.name, dest)
+                        finally:
+                            os.remove(tmp.name)
+                else:
+                    return
+            except:
+                os.remove(tmp.name)
+                raise
+
 
 def _short_hash(value: str) -> str:
     if value.startswith('0x'):
diff --git a/sqa/writer/cli.py b/sqa/writer/cli.py
index 85e804f..6ba45bf 100644
--- a/sqa/writer/cli.py
+++ b/sqa/writer/cli.py
@@ -142,7 +142,7 @@ def _ingest(self) -> Iterable[list[Block]]:
         if pack:
             yield pack
 
-    def main(self) -> None:
+    def init_support_services(self):
         self._start_prometheus_metrics()
 
         if os.getenv('SENTRY_DSN'):
@@ -151,5 +151,7 @@ def main(self) -> None:
                 traces_sample_rate=1.0
             )
 
+    def main(self) -> None:
+        self.init_support_services()
         sink = self._sink()
         sink.write(self._ingest())