diff --git a/bedboss/bbuploader/cli.py b/bedboss/bbuploader/cli.py
index fb79413..55c6ac2 100644
--- a/bedboss/bbuploader/cli.py
+++ b/bedboss/bbuploader/cli.py
@@ -41,6 +41,9 @@ def upload_all(
         True, help="Run skipped projects. [Default: False]"
     ),
     run_failed: bool = typer.Option(True, help="Run failed projects. [Default: False]"),
+    standardize_pep: bool = typer.Option(
+        False, help="Standardize pep with BEDMESS. [Default: False]"
+    ),
 ):
     from .main import upload_all as upload_all_function
 
@@ -57,6 +60,7 @@ def upload_all(
         rerun=rerun,
         run_skipped=run_skipped,
         run_failed=run_failed,
+        standardize_pep=standardize_pep,
     )
 
 
@@ -79,6 +83,9 @@ def upload_gse(
         True, help="Run skipped projects. [Default: False]"
     ),
     run_failed: bool = typer.Option(True, help="Run failed projects. [Default: False]"),
+    standardize_pep: bool = typer.Option(
+        False, help="Standardize pep with BEDMESS. [Default: False]"
+    ),
 ):
     from .main import upload_gse as upload_gse_function
 
@@ -91,6 +98,7 @@ def upload_gse(
         rerun=rerun,
         run_skipped=run_skipped,
         run_failed=run_failed,
+        standardize_pep=standardize_pep,
     )
 
 
diff --git a/bedboss/bbuploader/main.py b/bedboss/bbuploader/main.py
index 5a7bfc0..9f3797e 100644
--- a/bedboss/bbuploader/main.py
+++ b/bedboss/bbuploader/main.py
@@ -19,7 +19,7 @@
 from bedboss.bedboss import run_all
 from bedboss.bedbuncher.bedbuncher import run_bedbuncher
 from bedboss.exceptions import BedBossException
-from bedboss.utils import standardize_genome_name
+from bedboss.utils import standardize_genome_name, standardize_pep as pep_standardizer
 
 _LOGGER = logging.getLogger(PKG_NAME)
 _LOGGER.setLevel(logging.DEBUG)
@@ -36,8 +36,9 @@ def upload_all(
     genome: str = None,
     create_bedset: bool = True,
     rerun: bool = False,
-    run_skipped=False,
-    run_failed=True,
+    run_skipped: bool = False,
+    run_failed: bool = True,
+    standardize_pep: bool = False,
 ):
     """
     This is main function that is responsible for processing bed files from PEPHub.
@@ -54,6 +55,7 @@ def upload_all(
     :param rerun: rerun processing of the series
     :param run_skipped: rerun files that were skipped
     :param run_failed: rerun failed files
+    :param standardize_pep: standardize pep metadata using BEDMS
     """
 
     phc = PEPHubClient()
@@ -121,6 +123,7 @@ def upload_all(
                     genome=genome,
                     sa_session=session,
                     gse_status_sa_model=gse_status,
+                    standardize_pep=standardize_pep,
                 )
             except Exception as err:
                 _LOGGER.error(
@@ -243,8 +246,9 @@ def upload_gse(
     create_bedset: bool = True,
     genome: str = None,
     rerun: bool = False,
-    run_skipped=False,
-    run_failed=True,
+    run_skipped: bool = False,
+    run_failed: bool = True,
+    standardize_pep: bool = False,
 ):
     """
     Upload bed files from GEO series to BedBase
@@ -257,6 +261,7 @@ def upload_gse(
     :param rerun: rerun processing of the series
     :param run_skipped: rerun files that were skipped
     :param run_failed: rerun failed files
+    :param standardize_pep: standardize pep metadata using BEDMS
 
     :return: None
     """
@@ -301,6 +306,7 @@ def upload_gse(
                 genome=genome,
                 sa_session=session,
                 gse_status_sa_model=gse_status,
+                standardize_pep=standardize_pep,
             )
         except Exception as e:
             _LOGGER.error(f"Processing of '{gse}' failed with error: {e}")
@@ -346,6 +352,7 @@ def _upload_gse(
     genome: str = None,
     sa_session: Session = None,
     gse_status_sa_model: GeoGseStatus = None,
+    standardize_pep: bool = False,
 ) -> ProjectProcessingStatus:
     """
     Upload bed files from GEO series to BedBase
@@ -357,6 +364,7 @@ def _upload_gse(
     :param genome: reference genome to upload to database. If None, all genomes will be processed
     :param sa_session: opened session to the database
     :param gse_status_sa_model: sqlalchemy model for project status
+    :param standardize_pep: standardize pep metadata using BEDMS
 
     :return: None
     """
@@ -370,6 +378,9 @@ def _upload_gse(
 
     project = phc.load_project(f"bedbase/{gse}:{DEFAULT_GEO_TAG}")
 
+    if standardize_pep:
+        project = pep_standardizer(project)
+
     project_status = ProjectProcessingStatus(number_of_samples=len(project.samples))
     uploaded_files = []
     gse_status_sa_model.number_of_files = len(project.samples)
diff --git a/bedboss/bedboss.py b/bedboss/bedboss.py
index 41cf0cb..50581e7 100644
--- a/bedboss/bedboss.py
+++ b/bedboss/bedboss.py
@@ -26,7 +26,15 @@
     PlotsUpload,
     StatsUpload,
 )
-from bedboss.utils import get_genome_digest, standardize_genome_name
+
+from bedboss.utils import (
+    standardize_genome_name,
+    get_genome_digest,
+    standardize_pep as pep_standardizer,
+)
+from bedboss.exceptions import BedBossException
+from bedboss._version import __version__
+
 
 _LOGGER = logging.getLogger(PKG_NAME)
 
@@ -235,6 +243,7 @@ def insert_pep(
     upload_pephub: bool = False,
     upload_qdrant: bool = False,
     no_fail: bool = False,
+    standardize_pep: bool = False,
     pm: pypiper.PipelineManager = None,
 ) -> None:
     """
@@ -260,6 +269,7 @@ def insert_pep(
     :param bool upload_pephub: whether to push bedfiles and metadata to pephub (default: False)
     :param bool upload_qdrant: whether to execute qdrant indexing
     :param bool no_fail: whether to raise an error if bedset was not added to the database
+    :param bool standardize_pep: whether to standardize the pep file before processing by using bedms. (default: False)
     :param pypiper.PipelineManager pm: pypiper object
     :return: None
     """
@@ -276,6 +286,9 @@ def insert_pep(
     else:
         raise BedBossException("Incorrect pep type. Exiting...")
 
+    if standardize_pep:
+        pep = pep_standardizer(pep)
+
     bbagent = BedBaseAgent(bedbase_config)
 
     validate_project(pep, BEDBOSS_PEP_SCHEMA_PATH)
diff --git a/bedboss/cli.py b/bedboss/cli.py
index 3cf2843..76a70b5 100644
--- a/bedboss/cli.py
+++ b/bedboss/cli.py
@@ -165,6 +165,7 @@ def run_pep(
     upload_pephub: bool = typer.Option(False, help="Upload to PEPHub"),
     no_fail: bool = typer.Option(False, help="Do not fail on error"),
     license_id: str = typer.Option(DEFAULT_LICENSE, help="License ID"),
+    standardize_pep: bool = typer.Option(False, help="Standardize the PEP using bedMS"),
     # PipelineManager
     multi: bool = typer.Option(False, help="Run multiple samples"),
     recover: bool = typer.Option(True, help="Recover from previous run"),
@@ -192,6 +193,7 @@ def run_pep(
         upload_pephub=upload_pephub,
         upload_qdrant=upload_qdrant,
         no_fail=no_fail,
+        standardize_pep=standardize_pep,
         pm=create_pm(
             outfolder=outfolder,
             multi=multi,
diff --git a/bedboss/models.py b/bedboss/models.py
index ddbae26..636bef3 100644
--- a/bedboss/models.py
+++ b/bedboss/models.py
@@ -23,23 +23,42 @@ class FILE_TYPE(str, Enum):
 class BedMetadata(BaseModel):
     sample_name: str
     genome: str
-    organism: str = ""
+
+    species_name: str = Field(
+        default="", description="Name of species. e.g. Homo sapiens.", alias="organism"
+    )
     species_id: str = ""
-    cell_type: str = ""
-    cell_line: str = ""
-    exp_protocol: str = Field("", description="Experimental protocol (e.g. ChIP-seq)")
+    genotype: str = Field("", description="Genotype of the sample")
+    phenotype: str = Field("", description="Phenotype of the sample")
+
+    cell_type: str = Field(
+        "",
+        description="specific kind of cell with distinct characteristics found in an organism. e.g. Neurons, Hepatocytes, Adipocytes",
+    )
+    cell_line: str = Field(
+        "",
+        description="population of cells derived from a single cell and cultured in the lab for extended use, e.g. HeLa, HepG2, k562",
+    )
+    tissue: str = Field("", description="Tissue type")
+
     library_source: str = Field(
         "", description="Library source (e.g. genomic, transcriptomic)"
     )
-    genotype: str = Field("", description="Genotype of the sample")
-    target: str = Field("", description="Target of the assay (e.g. H3K4me3)")
+    assay: str = Field(
+        "", description="Experimental protocol (e.g. ChIP-seq)", alias="exp_protocol"
+    )
     antibody: str = Field("", description="Antibody used in the assay")
+    target: str = Field("", description="Target of the assay (e.g. H3K4me3)")
     treatment: str = Field(
         "", description="Treatment of the sample (e.g. drug treatment)"
     )
-    tissue: str = Field("", description="Tissue type")
-    global_sample_id: str = Field("", description="Global sample identifier")
-    global_experiment_id: str = Field("", description="Global experiment identifier")
+
+    global_sample_id: str = Field(
+        "", description="Global sample identifier. e.g. GSM000"
+    )  # excluded in training
+    global_experiment_id: str = Field(
+        "", description="Global experiment identifier. e.g. GSE000"
+    )  # excluded in training
     description: str = Field("", description="Description of the sample")
 
     model_config = ConfigDict(
diff --git a/bedboss/utils.py b/bedboss/utils.py
index f281b01..feea63a 100644
--- a/bedboss/utils.py
+++ b/bedboss/utils.py
@@ -4,6 +4,9 @@
 
 import requests
 from pephubclient.files_manager import FilesManager
+import peppy
+from peppy.const import SAMPLE_RAW_DICT_KEY
+from attribute_standardizer import AttrStandardizer
 
 _LOGGER = logging.getLogger("bedboss")
 
@@ -119,3 +122,46 @@ def save_example_bedbase_config(path: str) -> None:
     file_path = os.path.abspath(os.path.join(path, "bedbase_config.yaml"))
     FilesManager.save_yaml(example_bedbase_config(), file_path)
     _LOGGER.info(f"Example BedBase configuration saved to: {file_path}")
+
+
+def standardize_pep(
+    pep: peppy.Project, standard_columns: list = None, model: str = "BEDBASE"
+) -> peppy.Project:
+    """
+    Standardize PEP file by using bedMS standardization model
+    :param pep: peppy project
+    :param standard_columns: list of columns to standardize
+
+    :return: peppy project
+
+    """
+    if standard_columns is None:
+        standard_columns = ["library_source", "assay", "genome", "species_name"]
+    model = AttrStandardizer("BEDBASE")
+    suggestions = model.standardize(pep)
+
+    changes = {}
+    if suggestions is None:
+        return pep
+    for original, suggestion_dict in suggestions.items():
+        for suggestion, value in suggestion_dict.items():
+            if value > 0.9 and suggestion in standard_columns:
+                if suggestion not in changes:
+                    changes[suggestion] = {original: value}
+                else:
+                    if list(changes[suggestion].values())[0] < value:
+                        changes[suggestion] = {original: value}
+
+    raw_pep = pep.to_dict(extended=True)
+    for suggestion, original_dict in changes.items():
+        original_key = list(original_dict.keys())[0]
+        if (
+            suggestion not in raw_pep[SAMPLE_RAW_DICT_KEY]
+            and original_key in raw_pep[SAMPLE_RAW_DICT_KEY]
+        ):
+            raw_pep[SAMPLE_RAW_DICT_KEY][suggestion] = raw_pep[SAMPLE_RAW_DICT_KEY][
+                original_key
+            ]
+            del raw_pep[SAMPLE_RAW_DICT_KEY][original_key]
+
+    return peppy.Project.from_dict(raw_pep)
diff --git a/requirements/requirements-all.txt b/requirements/requirements-all.txt
index 521a177..f13255c 100644
--- a/requirements/requirements-all.txt
+++ b/requirements/requirements-all.txt
@@ -4,10 +4,11 @@ peppy>=0.40.6
 yacman>=0.8.4
 requests>=2.28.2
 piper>=v0.14.0
-bbconf>=0.6.1
+bbconf>=0.7.0
 # bbconf @ git+https://github.com/databio/bbconf.git@dev#egg=bbconf
 refgenconf>=0.12.2
 pandas>=2.0.0
 ubiquerg>=0.6.2
+bedmess>=0.1.0
 pephubclient>=0.4.4
 geniml>=0.4.1
\ No newline at end of file
diff --git a/test/test_standardizer.py b/test/test_standardizer.py
new file mode 100644
index 0000000..b63b6af
--- /dev/null
+++ b/test/test_standardizer.py
@@ -0,0 +1,24 @@
+from bedboss.utils import standardize_pep
+import peppy
+import pytest
+
+
+# @pytest.mark.skip(reason="Not for automatic testing")
+@pytest.mark.parametrize(
+    "registry_path",
+    [
+        "bedbase/gse274894:samples",
+        "bedbase/gse275349:samples",
+        "bedbase/gse262920:samples",
+        "bedbase/gse236101:samples",
+        "bedbase/gse254365:samples",
+    ],
+)
+@pytest.mark.parametrize(
+    "model",
+    ["BEDBASE", "ENCODE"],
+)
+def test_standardize_pep(registry_path, model):
+    pep = peppy.Project.from_pephub(registry_path)
+    standardize_pep(pep, model=model)
+    assert True