diff --git a/CHANGES.md b/CHANGES.md
index 898323ab1..fa7df6ff0 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,26 +1,42 @@
 # Release Notes
 
+## 0.14.0 (unreleased)
+
+### titiler.core
+
+* replace `-` by `_` in query parameters **breaking change**
+  - `coord-crs` -> `coord_crs`
+  - `dst-crs` -> `dst_crs`
+
+* replace `buffer` and `color_formula` endpoint parameters by external dependencies (`BufferParams` and `ColorFormulaParams`)
+
+### titiler.extension
+
+* rename `geom-densify-pts` to `geometry_densify` **breaking change**
+* rename `geom-precision` to `geometry_precision` **breaking change**
+
+
 ## 0.13.3 (2023-08-27)
 
-- fix Factories `url_for` method and avoid changing `Request.path_params` object
+* fix Factories `url_for` method and avoid changing `Request.path_params` object
 
 ## 0.13.2 (2023-08-24)
 
 ### titiler.extensions
 
-- replace mapbox-gl by maplibre
-- replace Stamen by OpenStreetMap tiles
-- simplify band selection handling (author @tayden, https://github.com/developmentseed/titiler/pull/688)
+* replace mapbox-gl by maplibre
+* replace Stamen by OpenStreetMap tiles
+* simplify band selection handling (author @tayden, https://github.com/developmentseed/titiler/pull/688)
 
 ## 0.13.1 (2023-08-21)
 
 ### titiler.core
 
-- fix `LowerCaseQueryStringMiddleware` unexpectedly truncating query parameters (authors @jthetzel and @jackharrhy, @https://github.com/developmentseed/titiler/pull/677)
+* fix `LowerCaseQueryStringMiddleware` unexpectedly truncating query parameters (authors @jthetzel and @jackharrhy, @https://github.com/developmentseed/titiler/pull/677)
 
 ## titiler.application
 
-- add `cors_allow_methods` in `ApiSettings` to control the CORS allowed methods (author @ubi15, https://github.com/developmentseed/titiler/pull/684)
+* add `cors_allow_methods` in `ApiSettings` to control the CORS allowed methods (author @ubi15, https://github.com/developmentseed/titiler/pull/684)
 
 ## 0.13.0 (2023-07-27)
 
diff --git a/docs/src/endpoints/cog.md b/docs/src/endpoints/cog.md
index a46133403..1c9e5fe3f 100644
--- a/docs/src/endpoints/cog.md
+++ b/docs/src/endpoints/cog.md
@@ -113,7 +113,7 @@ Example:
     - **url** (str): Cloud Optimized GeoTIFF URL. **Required**
     - **bidx** (array[int]): Dataset band indexes (e.g `bidx=1`, `bidx=1&bidx=2&bidx=3`).
     - **expression** (str): rio-tiler's band math expression (e.g `expression=b1/b2`).
-    - **coord-crs** (str): Coordinate Reference System of the input coordinates. Default to `epsg:4326`.
+    - **coord_crs** (str): Coordinate Reference System of the input coordinates. Default to `epsg:4326`.
     - **max_size** (int): Max image size, default is 1024.
     - **nodata** (str, int, float): Overwrite internal Nodata value.
     - **unscale** (bool): Apply dataset internal Scale/Offset.
@@ -149,7 +149,7 @@ Example:
     - **url** (str): Cloud Optimized GeoTIFF URL. **Required**
     - **bidx** (array[int]): Dataset band indexes (e.g `bidx=1`, `bidx=1&bidx=2&bidx=3`).
     - **expression** (str): rio-tiler's band math expression (e.g `expression=b1/b2`).
-    - **coord-crs** (str): Coordinate Reference System of the input geometry coordinates. Default to `epsg:4326`.
+    - **coord_crs** (str): Coordinate Reference System of the input geometry coordinates. Default to `epsg:4326`.
     - **max_size** (int): Max image size, default is 1024.
     - **nodata** (str, int, float): Overwrite internal Nodata value.
     - **unscale** (bool): Apply dataset internal Scale/Offset.
@@ -184,7 +184,7 @@ Note: if `height` and `width` are provided `max_size` will be ignored.
     - **url** (str): Cloud Optimized GeoTIFF URL. **Required**
     - **bidx** (array[int]): Dataset band indexes (e.g `bidx=1`, `bidx=1&bidx=2&bidx=3`).
     - **expression** (str): rio-tiler's band math expression (e.g `expression=b1/b2`).
-    - **coord-crs** (str): Coordinate Reference System of the input coordinates. Default to `epsg:4326`.
+    - **coord_crs** (str): Coordinate Reference System of the input coordinates. Default to `epsg:4326`.
     - **nodata** (str, int, float): Overwrite internal Nodata value.
     - **unscale** (bool): Apply dataset internal Scale/Offset.
     - **resampling** (str): rasterio resampling method. Default is `nearest`.
@@ -323,7 +323,7 @@ Example:
     - **url** (str): Cloud Optimized GeoTIFF URL. **Required**
     - **bidx** (array[int]): Dataset band indexes (e.g `bidx=1`, `bidx=1&bidx=2&bidx=3`).
     - **expression** (str): rio-tiler's band math expression (e.g `expression=b1/b2`).
-    - **coord-crs** (str): Coordinate Reference System of the input geometry coordinates. Default to `epsg:4326`.
+    - **coord_crs** (str): Coordinate Reference System of the input geometry coordinates. Default to `epsg:4326`.
     - **max_size** (int): Max image size from which to calculate statistics, default is 1024.
     - **height** (int): Force image height from which to calculate statistics.
     - **width** (int): Force image width from which to calculate statistics.
diff --git a/docs/src/endpoints/stac.md b/docs/src/endpoints/stac.md
index cb108bcb0..0f2ab2cfd 100644
--- a/docs/src/endpoints/stac.md
+++ b/docs/src/endpoints/stac.md
@@ -124,7 +124,7 @@ Example:
     - **expression** (str): rio-tiler's math expression with asset names (e.g `Asset1_b1/Asset2_b1`).
     - **asset_as_band** (bool): tell rio-tiler that each asset is a 1 band dataset, so expression `Asset1/Asset2` can be passed.
     - **asset_bidx** (array[str]): Per asset band math expression (e.g `Asset1|1,2,3`).
-    - **coord-crs** (str): Coordinate Reference System of the input coordinates. Default to `epsg:4326`.
+    - **coord_crs** (str): Coordinate Reference System of the input coordinates. Default to `epsg:4326`.
     - **max_size** (int): Max image size, default is 1024.
     - **nodata** (str, int, float): Overwrite internal Nodata value.
     - **unscale** (bool): Apply dataset internal Scale/Offset.
@@ -163,7 +163,7 @@ Example:
     - **expression** (str): rio-tiler's math expression with asset names (e.g `Asset1_b1/Asset2_b1`).
     - **asset_as_band** (bool): tell rio-tiler that each asset is a 1 band dataset, so expression `Asset1/Asset2` can be passed.
     - **asset_bidx** (array[str]): Per asset band math expression (e.g `Asset1|1,2,3`).
-    - **coord-crs** (str): Coordinate Reference System of the input geometry coordinates. Default to `epsg:4326`.
+    - **coord_crs** (str): Coordinate Reference System of the input geometry coordinates. Default to `epsg:4326`.
     - **max_size** (int): Max image size, default is 1024.
     - **nodata** (str, int, float): Overwrite internal Nodata value.
     - **unscale** (bool): Apply dataset internal Scale/Offset.
@@ -200,7 +200,7 @@ Example:
     - **expression** (str): rio-tiler's math expression with asset names (e.g `Asset1_b1/Asset2_b1`).
     - **asset_as_band** (bool): tell rio-tiler that each asset is a 1 band dataset, so expression `Asset1/Asset2` can be passed.
     - **asset_bidx** (array[str]): Per asset band math expression (e.g `Asset1|1,2,3`).
-    - **coord-crs** (str): Coordinate Reference System of the input coordinates. Default to `epsg:4326`.
+    - **coord_crs** (str): Coordinate Reference System of the input coordinates. Default to `epsg:4326`.
     - **nodata** (str, int, float): Overwrite internal Nodata value.
     - **unscale** (bool): Apply dataset internal Scale/Offset.
     - **resampling** (str): rasterio resampling method. Default is `nearest`.
@@ -392,7 +392,7 @@ Example:
     - **expression** (str): rio-tiler's math expression with asset names (e.g `Asset1_b1/Asset2_b1`).
     - **asset_as_band** (bool): tell rio-tiler that each asset is a 1 band dataset, so expression `Asset1/Asset2` can be passed.
     - **asset_bidx** (array[str]): Per asset band math expression (e.g `Asset1|1,2,3`).
-    - **coord-crs** (str): Coordinate Reference System of the input geometry coordinates. Default to `epsg:4326`.
+    - **coord_crs** (str): Coordinate Reference System of the input geometry coordinates. Default to `epsg:4326`.
     - **max_size** (int): Max image size from which to calculate statistics, default is 1024.
     - **height** (int): Force image height from which to calculate statistics.
     - **width** (int): Force image width from which to calculate statistics.
diff --git a/src/titiler/core/tests/test_factories.py b/src/titiler/core/tests/test_factories.py
index 701f411cb..4aa42553e 100644
--- a/src/titiler/core/tests/test_factories.py
+++ b/src/titiler/core/tests/test_factories.py
@@ -201,7 +201,7 @@ def test_TilerFactory():
     assert response.json()["band_names"] == ["b1"]
 
     response = client.get(
-        f"/point/-6259272.328324187,12015838.020930404?url={DATA_DIR}/cog.tif&coord-crs=EPSG:3857"
+        f"/point/-6259272.328324187,12015838.020930404?url={DATA_DIR}/cog.tif&coord_crs=EPSG:3857"
     )
     assert response.status_code == 200
     assert response.headers["content-type"] == "application/json"
@@ -1591,7 +1591,7 @@ def custom_rescale_params() -> Optional[RescaleType]:
 
 
 def test_dst_crs_option():
-    """test dst-crs parameter."""
+    """test dst_crs parameter."""
     app = FastAPI()
     app.include_router(TilerFactory().router)
 
@@ -1605,7 +1605,7 @@ def test_dst_crs_option():
             32621
         )  # return the image in the original CRS
 
-        response = client.get(f"/preview.tif?url={DATA_DIR}/cog.tif&dst-crs=epsg:4326")
+        response = client.get(f"/preview.tif?url={DATA_DIR}/cog.tif&dst_crs=epsg:4326")
         meta = parse_img(response.content)
         assert meta["crs"] == CRS.from_epsg(4326)
         assert not meta["crs"] == CRS.from_epsg(32621)
@@ -1622,20 +1622,20 @@ def test_dst_crs_option():
 
         # Force output in epsg:32621
         response = client.get(
-            f"/crop/-56.228,72.715,-54.547,73.188.tif?url={DATA_DIR}/cog.tif&dst-crs=epsg:32621"
+            f"/crop/-56.228,72.715,-54.547,73.188.tif?url={DATA_DIR}/cog.tif&dst_crs=epsg:32621"
         )
         meta = parse_img(response.content)
         assert meta["crs"] == CRS.from_epsg(32621)
 
-        # coord-crs + dst-crs
+        # coord_crs + dst_crs
         response = client.get(
-            f"/crop/-6259272.328324187,12015838.020930404,-6072144.264300693,12195445.265479913.tif?url={DATA_DIR}/cog.tif&coord-crs=epsg:3857"
+            f"/crop/-6259272.328324187,12015838.020930404,-6072144.264300693,12195445.265479913.tif?url={DATA_DIR}/cog.tif&coord_crs=epsg:3857"
         )
         meta = parse_img(response.content)
         assert meta["crs"] == CRS.from_epsg(3857)
 
         response = client.get(
-            f"/crop/-6259272.328324187,12015838.020930404,-6072144.264300693,12195445.265479913.tif?url={DATA_DIR}/cog.tif&coord-crs=epsg:3857&dst-crs=epsg:32621"
+            f"/crop/-6259272.328324187,12015838.020930404,-6072144.264300693,12195445.265479913.tif?url={DATA_DIR}/cog.tif&coord_crs=epsg:3857&dst_crs=epsg:32621"
         )
         meta = parse_img(response.content)
         assert meta["crs"] == CRS.from_epsg(32621)
diff --git a/src/titiler/core/titiler/core/dependencies.py b/src/titiler/core/titiler/core/dependencies.py
index 577e9219e..3ebf11eaf 100644
--- a/src/titiler/core/titiler/core/dependencies.py
+++ b/src/titiler/core/titiler/core/dependencies.py
@@ -486,7 +486,7 @@ def CoordCRSParams(
     crs: Annotated[
         Optional[str],
         Query(
-            alias="coord-crs",
+            alias="coord_crs",
             description="Coordinate Reference System of the input coords. Default to `epsg:4326`.",
         ),
     ] = None,
@@ -502,7 +502,7 @@ def DstCRSParams(
     crs: Annotated[
         Optional[str],
         Query(
-            alias="dst-crs",
+            alias="dst_crs",
             description="Output Coordinate Reference System.",
         ),
     ] = None,
@@ -512,3 +512,30 @@ def DstCRSParams(
         return CRS.from_user_input(crs)
 
     return None
+
+
+def BufferParams(
+    buffer: Annotated[
+        Optional[float],
+        Query(
+            gt=0,
+            title="Tile buffer.",
+            description="Buffer on each side of the given tile. It must be a multiple of `0.5`. Output **tilesize** will be expanded to `tilesize + 2 * buffer` (e.g 0.5 = 257x257, 1.0 = 258x258).",
+        ),
+    ] = None,
+) -> Optional[float]:
+    """Tile buffer Parameter."""
+    return buffer
+
+
+def ColorFormulaParams(
+    color_formula: Annotated[
+        Optional[str],
+        Query(
+            title="Color Formula",
+            description="rio-color formula (info: https://github.com/mapbox/rio-color)",
+        ),
+    ] = None,
+) -> Optional[str]:
+    """ColorFormula Parameter."""
+    return color_formula
diff --git a/src/titiler/core/titiler/core/factory.py b/src/titiler/core/titiler/core/factory.py
index 9961581e4..e4c3e18f0 100644
--- a/src/titiler/core/titiler/core/factory.py
+++ b/src/titiler/core/titiler/core/factory.py
@@ -37,6 +37,8 @@
     BandsExprParamsOptional,
     BandsParams,
     BidxExprParams,
+    BufferParams,
+    ColorFormulaParams,
     ColorMapParams,
     CoordCRSParams,
     DatasetParams,
@@ -521,23 +523,10 @@ def tile(
             src_path=Depends(self.path_dependency),
             layer_params=Depends(self.layer_dependency),
             dataset_params=Depends(self.dataset_dependency),
-            buffer: Annotated[
-                Optional[float],
-                Query(
-                    gt=0,
-                    title="Tile buffer.",
-                    description="Buffer on each side of the given tile. It must be a multiple of `0.5`. Output **tilesize** will be expanded to `tilesize + 2 * buffer` (e.g 0.5 = 257x257, 1.0 = 258x258).",
-                ),
-            ] = None,
+            buffer=Depends(BufferParams),
             post_process=Depends(self.process_dependency),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             reader_params=Depends(self.reader_dependency),
@@ -625,23 +614,10 @@ def tilejson(
             ] = None,
             layer_params=Depends(self.layer_dependency),
             dataset_params=Depends(self.dataset_dependency),
-            buffer: Annotated[
-                Optional[float],
-                Query(
-                    gt=0,
-                    title="Tile buffer.",
-                    description="Buffer on each side of the given tile. It must be a multiple of `0.5`. Output **tilesize** will be expanded to `tilesize + 2 * buffer` (e.g 0.5 = 257x257, 1.0 = 258x258).",
-                ),
-            ] = None,
+            buffer=Depends(BufferParams),
             post_process=Depends(self.process_dependency),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             reader_params=Depends(self.reader_dependency),
@@ -718,23 +694,10 @@ def map_viewer(
             ] = None,
             layer_params=Depends(self.layer_dependency),
             dataset_params=Depends(self.dataset_dependency),
-            buffer: Annotated[
-                Optional[float],
-                Query(
-                    gt=0,
-                    title="Tile buffer.",
-                    description="Buffer on each side of the given tile. It must be a multiple of `0.5`. Output **tilesize** will be expanded to `tilesize + 2 * buffer` (e.g 0.5 = 257x257, 1.0 = 258x258).",
-                ),
-            ] = None,
+            buffer=Depends(BufferParams),
             post_process=Depends(self.process_dependency),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             reader_params=Depends(self.reader_dependency),
@@ -793,23 +756,10 @@ def wmts(
             ] = None,
             layer_params=Depends(self.layer_dependency),
             dataset_params=Depends(self.dataset_dependency),
-            buffer: Annotated[
-                Optional[float],
-                Query(
-                    gt=0,
-                    title="Tile buffer.",
-                    description="Buffer on each side of the given tile. It must be a multiple of `0.5`. Output **tilesize** will be expanded to `tilesize + 2 * buffer` (e.g 0.5 = 257x257, 1.0 = 258x258).",
-                ),
-            ] = None,
+            buffer=Depends(BufferParams),
             post_process=Depends(self.process_dependency),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             reader_params=Depends(self.reader_dependency),
@@ -940,13 +890,7 @@ def preview(
             image_params=Depends(self.img_dependency),
             post_process=Depends(self.process_dependency),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             reader_params=Depends(self.reader_dependency),
@@ -1018,13 +962,7 @@ def part(
             image_params=Depends(self.img_dependency),
             post_process=Depends(self.process_dependency),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             reader_params=Depends(self.reader_dependency),
@@ -1089,13 +1027,7 @@ def geojson_crop(
             image_params=Depends(self.img_dependency),
             post_process=Depends(self.process_dependency),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             reader_params=Depends(self.reader_dependency),
diff --git a/src/titiler/extensions/titiler/extensions/stac.py b/src/titiler/extensions/titiler/extensions/stac.py
index 865209a89..257a851fe 100644
--- a/src/titiler/extensions/titiler/extensions/stac.py
+++ b/src/titiler/extensions/titiler/extensions/stac.py
@@ -113,7 +113,7 @@ def create_stac(
             geom_densify_pts: Annotated[
                 Optional[int],
                 Query(
-                    alias="geom-densify-pts",
+                    alias="geometry_densify",
                     ge=0,
                     description="Number of points to add to each edge to account for nonlinear edges transformation.",
                 ),
@@ -121,7 +121,7 @@ def create_stac(
             geom_precision: Annotated[
                 Optional[int],
                 Query(
-                    alias="geom-precision",
+                    alias="geometry_precision",
                     ge=-1,
                     description="Round geometry coordinates to this number of decimal.",
                 ),
diff --git a/src/titiler/extensions/titiler/extensions/wms.py b/src/titiler/extensions/titiler/extensions/wms.py
index f3073f3c9..964330289 100644
--- a/src/titiler/extensions/titiler/extensions/wms.py
+++ b/src/titiler/extensions/titiler/extensions/wms.py
@@ -2,22 +2,21 @@
 
 from dataclasses import dataclass, field
 from enum import Enum
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List
 from urllib.parse import urlencode
 
 import jinja2
 import numpy
 import rasterio
-from fastapi import Depends, HTTPException, Query
+from fastapi import Depends, HTTPException
 from rasterio.crs import CRS
 from rio_tiler.mosaic import mosaic_reader
 from rio_tiler.mosaic.methods.base import MosaicMethodBase
 from starlette.requests import Request
 from starlette.responses import Response
 from starlette.templating import Jinja2Templates
-from typing_extensions import Annotated
 
-from titiler.core.dependencies import RescalingParams
+from titiler.core.dependencies import ColorFormulaParams, RescalingParams
 from titiler.core.factory import BaseTilerFactory, FactoryExtension
 from titiler.core.resources.enums import ImageType, MediaType
 
@@ -271,13 +270,7 @@ def wms(  # noqa: C901
             dataset_params=Depends(factory.dataset_dependency),
             post_process=Depends(factory.process_dependency),
             rescale=Depends(RescalingParams),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(factory.colormap_dependency),
             reader_params=Depends(factory.reader_dependency),
             env=Depends(factory.environment_dependency),
diff --git a/src/titiler/mosaic/tests/test_factory.py b/src/titiler/mosaic/tests/test_factory.py
index 22dfa5c1f..d5db4e8ff 100644
--- a/src/titiler/mosaic/tests/test_factory.py
+++ b/src/titiler/mosaic/tests/test_factory.py
@@ -100,7 +100,7 @@ def test_MosaicTilerFactory():
 
         response = client.get(
             "/mosaic/point/-7903683.846322423,5780349.220256353",
-            params={"url": mosaic_file, "coord-crs": "epsg:3857"},
+            params={"url": mosaic_file, "coord_crs": "epsg:3857"},
         )
         assert response.status_code == 200
 
@@ -213,7 +213,7 @@ def test_MosaicTilerFactory():
 
         response = client.get(
             "/mosaic/-7903683.846322423,5780349.220256353/assets",
-            params={"url": mosaic_file, "coord-crs": "epsg:3857"},
+            params={"url": mosaic_file, "coord_crs": "epsg:3857"},
         )
         assert response.status_code == 200
         assert all(
@@ -233,7 +233,7 @@ def test_MosaicTilerFactory():
 
         response = client.get(
             "/mosaic/-8453323.83211421,5322463.153553393,-8140237.76425813,5635549.221409473/assets",
-            params={"url": mosaic_file, "coord-crs": "epsg:3857"},
+            params={"url": mosaic_file, "coord_crs": "epsg:3857"},
         )
         assert response.status_code == 200
         assert all(
diff --git a/src/titiler/mosaic/titiler/mosaic/factory.py b/src/titiler/mosaic/titiler/mosaic/factory.py
index 4debb54b2..71acf287e 100644
--- a/src/titiler/mosaic/titiler/mosaic/factory.py
+++ b/src/titiler/mosaic/titiler/mosaic/factory.py
@@ -24,7 +24,12 @@
 from starlette.responses import HTMLResponse, Response
 from typing_extensions import Annotated
 
-from titiler.core.dependencies import CoordCRSParams, DefaultDependency
+from titiler.core.dependencies import (
+    BufferParams,
+    ColorFormulaParams,
+    CoordCRSParams,
+    DefaultDependency,
+)
 from titiler.core.factory import BaseTilerFactory, img_endpoint_params
 from titiler.core.models.mapbox import TileJSON
 from titiler.core.resources.enums import ImageType, MediaType, OptionalHeader
@@ -265,23 +270,10 @@ def tile(
             layer_params=Depends(self.layer_dependency),
             dataset_params=Depends(self.dataset_dependency),
             pixel_selection=Depends(self.pixel_selection_dependency),
-            buffer: Annotated[
-                Optional[float],
-                Query(
-                    gt=0,
-                    title="Tile buffer.",
-                    description="Buffer on each side of the given tile. It must be a multiple of `0.5`. Output **tilesize** will be expanded to `tilesize + 2 * buffer` (e.g 0.5 = 257x257, 1.0 = 258x258).",
-                ),
-            ] = None,
+            buffer=Depends(BufferParams),
             post_process=Depends(self.process_dependency),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             backend_params=Depends(self.backend_dependency),
@@ -402,23 +394,10 @@ def tilejson(
             layer_params=Depends(self.layer_dependency),
             dataset_params=Depends(self.dataset_dependency),
             pixel_selection=Depends(self.pixel_selection_dependency),
-            buffer: Annotated[
-                Optional[float],
-                Query(
-                    gt=0,
-                    title="Tile buffer.",
-                    description="Buffer on each side of the given tile. It must be a multiple of `0.5`. Output **tilesize** will be expanded to `tilesize + 2 * buffer` (e.g 0.5 = 257x257, 1.0 = 258x258).",
-                ),
-            ] = None,
+            buffer=Depends(BufferParams),
             post_process=Depends(self.process_dependency),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             backend_params=Depends(self.backend_dependency),
@@ -508,22 +487,9 @@ def map_viewer(
             layer_params=Depends(self.layer_dependency),
             dataset_params=Depends(self.dataset_dependency),
             pixel_selection=Depends(self.pixel_selection_dependency),
-            buffer: Annotated[
-                Optional[float],
-                Query(
-                    gt=0,
-                    title="Tile buffer.",
-                    description="Buffer on each side of the given tile. It must be a multiple of `0.5`. Output **tilesize** will be expanded to `tilesize + 2 * buffer` (e.g 0.5 = 257x257, 1.0 = 258x258).",
-                ),
-            ] = None,
+            buffer=Depends(BufferParams),
             rescale=Depends(self.rescale_dependency),
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
+            color_formula=Depends(ColorFormulaParams),
             colormap=Depends(self.colormap_dependency),
             render_params=Depends(self.render_dependency),
             backend_params=Depends(self.backend_dependency),
@@ -581,28 +547,15 @@ def wmts(
                 Optional[int],
                 Query(description="Overwrite default maxzoom."),
             ] = None,
-            layer_params=Depends(self.layer_dependency),  # noqa
-            dataset_params=Depends(self.dataset_dependency),  # noqa
-            pixel_selection=Depends(self.pixel_selection_dependency),  # noqa
-            buffer: Annotated[
-                Optional[float],
-                Query(
-                    gt=0,
-                    title="Tile buffer.",
-                    description="Buffer on each side of the given tile. It must be a multiple of `0.5`. Output **tilesize** will be expanded to `tilesize + 2 * buffer` (e.g 0.5 = 257x257, 1.0 = 258x258).",
-                ),
-            ] = None,
-            post_process=Depends(self.process_dependency),  # noqa
-            rescale=Depends(self.rescale_dependency),  # noqa
-            color_formula: Annotated[
-                Optional[str],
-                Query(
-                    title="Color Formula",
-                    description="rio-color formula (info: https://github.com/mapbox/rio-color)",
-                ),
-            ] = None,
-            colormap=Depends(self.colormap_dependency),  # noqa
-            render_params=Depends(self.render_dependency),  # noqa
+            layer_params=Depends(self.layer_dependency),
+            dataset_params=Depends(self.dataset_dependency),
+            pixel_selection=Depends(self.pixel_selection_dependency),
+            buffer=Depends(BufferParams),
+            post_process=Depends(self.process_dependency),
+            rescale=Depends(self.rescale_dependency),
+            color_formula=Depends(ColorFormulaParams),
+            colormap=Depends(self.colormap_dependency),
+            render_params=Depends(self.render_dependency),
             backend_params=Depends(self.backend_dependency),
             reader_params=Depends(self.reader_dependency),
             env=Depends(self.environment_dependency),