Potlatch2 : Yes (Built-in)
JOSM : Yes (Built-in)

JOSM : tms[17]:http://{switch:a,b,c}.tiles.mapbox.com/v3/openstreetmap.map-4wvf9l0l/{zoom}/{x}/{y}.png

JOSM : Yes (Built-in)

JOSM : Yes (Built-in)

JOSM : tms:http://imagico.de/map/osmim_tiles.php?z={zoom}&x={x}&y={-y}

JOSM : Yes (Built-in)

Potlatch1 : https://gravitystorm.dev.openstreetmap.org/imagery/philippines/!/!/!.png

JOSM : https://gravitystorm.dev.openstreetmap.org/imagery/Philippines/
WMS : yes

JOSM : http://maps.six.nsw.gov.au/arcgis/services/public/NSW_Imagery/MapServer/WMSServer?request=GetCapabilities&service=WMS
WMS : yes
TMS : no

JOSM : http://wms.geoimage.at/dop-1mfree?FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=Luftbild_1m&
WMS : yes

Potlatch1 : http://fugro.openstreetmap.dk/fugro2005/!/!/!.jpg
Potlatch2 : http://fugro.openstreetmap.dk/fugro2005/$z/$x/$y.jpg
JOSM : http://fugro.openstreetmap.dk/fugro2005
WMS : no
TMS : yes

Potlatch1 : http://wms.openstreetmap.de/tms/Lauf/!/!/!.png

JOSM : http://wms.openstreetmap.de/wms?layers=Lauf&
WMS : yes
TMS : yes

Potlatch1 : http://wms.openstreetmap.de/tms/Radolfzell/!/!/!.png

JOSM : http://wms.openstreetmap.de/wms?layers=Radolfzell&
WMS : yes
TMS : yes

JOSM : automatic, if editing area of images
WMS : yes
TMS : no

Potlatch1 : http://wms.openstreetmap.de/tms/Witten/!/!/!.png

JOSM : http://wms.openstreetmap.de/wms?layers=Witten&
WMS : yes
TMS : yes

JOSM : http://www.geodaten.bayern.de/ogc/getogc.cgi?FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=DOP&
WMS : yes

JOSM : http://www.geodaten.bayern.de/ogc/ogc_dop80_oa.cgi?FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=by_dop80c
WMS : yes

JOSM : http://wms.openstreetmap.de/wms?LAYERS=Dortmund&
WMS : yes

JOSM : http://87.230.55.31/testwms.wsgi?LAYERS=Goerlitz&
WMS : yes

JOSM : ttp://87.230.55.31/wms?FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&Layers=OSM-WMS
WMS : yes

WMS : no
TMS : no

JOSM : Service URL: http://www.webatlasde.de/arcgis/services/Maps4BW/MapServer/WMSServer?SERVICE=WMS&VERSION=1.3.0&REQUEST=GetCapabilities

WMS : https://gint.mainz.de/gint1-cgi/mapserv?map=/data/mapbender-int/umn-www/client/a62/luftbild.map

WMS : http://gis.ktimanet.gr/wms/wmsopen/wmsserver.aspx?FORMAT=image/jpeg&VERSION=1.1.1&SERVICE=WMS&REQUEST=GetMap&LAYERS=KTBASEMAP&STYLES=&SRS={proj}&WIDTH={width}&HEIGHT={height}&BBOX={bbox}

JOSM : http://wms.pcn.minambiente.it/cgi-bin/mapserv.exe?map=/ms_ogc/service/ortofoto_colore_06.map&LAYERS=ortofoto_colore_06_32,ortofoto_colore_06_33&REQUEST=GetMap&VERSION=1.1.1&FORMAT=image%2Fjpeg&
WMS : http://wms.pcn.minambiente.it/cgi-bin/mapserv.exe?map=/ms_ogc/service/ortofoto_colore_06.map&LAYERS=ortofoto_colore_06_32,ortofoto_colore_06_33&REQUEST=GetMap&VERSION=1.1.1&FORMAT=image%2Fjpeg&

Potlatch1 : https://gravitystorm.dev.openstreetmap.org/imagery/stratford/!/!/!.png

JOSM : https://gravitystorm.dev.openstreetmap.org/surrey/
WMS : yes

JOSM : tms[12,20]:http://{switch:a,b,c}.tile.openstreetmap.us/usgs_large_scale/{zoom}/{x}/{y}.jpg (Should be available in imagery preferences)

Potlatch1 : https://gravitystorm.dev.openstreetmap.org/imagery/georgia/!/!/!.png

JOSM : http://isse.cr.usgs.gov/arcgis/services/Combined/SDDS_Imagery/MapServer/WMSServer?SERVICE=WMS&VERSION=1.1.1&STYLES=&SRS=EPSG:4326&FORMAT=image/png&layers=0&request=map&

JOSM : http://imagery.nconemap.com/arcgis/services/2010_Orthoimagery/ImageServer/WMSServer
WMS : yes
TMS : no

JOSM : http://mapserv.utah.gov/ArcGIS/services/UtahBaseMap-Imagery2009/MapServer/WMSServer
WMS : yes

JOSM : http://128.173.112.207:8399/arcgis/services/VA_NAIP08/MapServer/WMSServer/?service=WMS&request=getmap&layers=0&format=image/jpeg&version=1.0&srs=EPSG:4326&styles=default&

JOSM : http://128.173.112.207:8399/arcgis/services/VA_NAIP08/MapServer/WMSServer/?service=WMS&request=getmap&layers=0&format=image/jpeg&version=1.0&srs=EPSG:4326&styles=default&

JOSM : https://gravitystorm.dev.openstreetmap.org/imagery/Philippines/
WMS : yes

JOSM : https://matt.dev.openstreetmap.org/disney/
WMS : yes

VERSION/WMTVER

Optional

1.3.0 (9.3 and later)

1.1.1 (9.2)

Request version. Only use WMTVER in WMS 1.0.0; otherwise, use VERSION.

SERVICE

Mandatory

N/A

Service type. It must be set to WMS. The parameter is not available in WMS 1.0.0.

REQUEST

Mandatory

N/A

Request name. It must be set to GetCapabilities. For WMS 1.0.0, it must be set to capabilities.

FORMAT

Optional

text/xml (9.3 and later)

Output format for service metadata. This is only available in WMS 1.3.0 (for example, application/vnd.ogc.wms_xml, text/plain, or text/html).

VERSION/WMTVER

Mandatory

N/A

Request version. Only use WMTVER in WMS 1.0.0; otherwise, use VERSION.

REQUEST

Mandatory

N/A

Request name. It must be set to GetMap. For WMS 1.0.0, it must be set to map.

LAYERS

Mandatory

N/A

Comma-separated list of one or more map layers (for example, 0,1,2 or layer1,layer2).

STYLES

Mandatory

N/A

Comma-separated list of one or more styles, one style per requested layer (for example, 0,1,2 or style1,style2).

CRS/SRS

Mandatory

N/A

Coordinate reference system. CRS is only used in WMS 1.3.0; otherwise, use SRS (for example, EPSG:4326 or EPSG:4269).

BBOX

Mandatory

N/A

Bounding box corners (lower left and upper right) in CRS/SRS units (for example, -180,-90,180,90).

WIDTH

Mandatory

N/A

Width in pixels of map picture (for example, 1024).

HEIGHT

Mandatory

N/A

Height in pixels of map picture (for example, 768).

FORMAT

Mandatory

N/A

Output format of map (for example, image/png, image/jpeg, image/svg+xml, or image/bil).

If you're specifying the output format as image/bil, the WMS client will also need to generate a corresponding header (.hdr) to read the images properly.

TRANSPARENT

Optional

False

Determines whether background is transparent or not (True or False, respectively).

BGCOLOR

Optional

0xFFFFFF

Hexadecimal RGB color for the map background (for example, 0xFFFFFF or FFFFFF).

SLD

Optional

'

URL of Styled Layer Descriptor XML file.

SLD_BODY

Optional

'

XML body of Styled Layer Descriptor file.

TIME

Optional

'

Time value of requested layer.

ArcGIS client applications only support the TIME dimension if the layer is time enabled. If the layer is not time enabled, you'll need to use a web browser or custom client to submit a GetMap request using the DIM_ parameter (listed below).

ELEVATION

Optional

'

Elevation value of requested layer.

ArcGIS client applications only support the ELEVATION dimension if the layer is elevation aware. You can only set elevation in NetCDF and mosaic datasets.

EXCEPTIONS

Optional

text/xml (WMS 1.3.0)

application/vnd.ogc.se_xml (WMS 1.1.1 and WMS 1.1.0)

application/vnd.ogc.inimage (WMS 1.0.0)

The format in which exceptions should be reported (for example, text/xml or text/html).

DIM_<name>

Optional

'

Dimension value of the requested map layers; <name> must be replaced with the name of a dimension, for example, DEPTH.

DIM_ is supported in WMS 1.1.0 and later.

Dimensions are not currently supported through ArcGIS client applications. To consume dimensions, you'll need to use a web browser or create your own custom OGC client application using ArcObjects or another language.

VERSION/WMTVER

Mandatory

N/A

Request version. Only use WMTVER in WMS 1.0.0; otherwise, use VERSION.

REQUEST

Mandatory

N/A

Request name. It must be set to GetFeatureInfo. For WMS 1.0.0, it must be set to feature_info.

Map request part

Mandatory

N/A

Partial copy of the GetMap request parameters that generated the map for which information is desired.

QUERY_LAYERS

Mandatory

N/A

Comma-separated list of one or more map layers to be queried (for example, 0,1,2 or layer1,layer2).

INFO_FORMAT

Mandatory (WMS 1.3.0)

Optional (WMS 1.1.1, 1.1.0, 1.0.0)

N/A (WMS 1.3.0)

text/xml (WMS 1.1.1, 1.1.0, 1.0.0)

Return format of feature information (for example, text/xml or text/html).

I/X

Mandatory

N/A

X-coordinate in pixels of feature in map coordinate system (for example, 100). Use I for WMS 1.3.0; otherwise, use X.

J/Y

Mandatory

N/A

Y-coordinate in pixels of feature in map coordinate system (for example, 100). Use J for WMS 1.3.0; otherwise, use Y.

TIME

Optional

'

Time value of requested layer.

ArcGIS client applications only support the TIME dimension if the layer is time enabled. If the layer is not time enabled, you'll need to use a web browser or custom client to submit a GetMap request using the DIM_ parameter (listed below).

ELEVATION

Optional

'

Elevation value of requested layer.

ArcGIS client applications only support the ELEVATION dimension if the layer is elevation aware. You can only set elevation in NetCDF and mosaic datasets.

EXCEPTIONS

Optional

text/xml (WMS 1.3.0)

application/vnd.ogc.se_xml (WMS 1.1.1 and WMS 1.1.0)

application/vnd.ogc.inimage (WMS 1.0.0)

The format in which exceptions should be reported (for example, text/xml or text/html).

DIM_<name>

Optional

'

Dimension value of the requested map layers; <name> must be replaced with the name of a dimension, for example, DEPTH.

DIM_ is supported in WMS 1.1.0 and above.

Dimensions are not currently supported through ArcGIS client applications. To consume dimensions, you'll need to use a web browser or create your own custom OGC client application using ArcObjects or another language.

VERSION

Mandatory

1.3.0(9.3 and later)

1.1.1 (9.2)

Version as required by OGC interfaces.

REQUEST

Mandatory

N/A

Request name. It must be set to GetStyles.

LAYERS

Mandatory

N/A

Comma-separated list of named layers for which to retrieve style descriptions.

SLDVER

Optional

1.0.0 (10.0)

The SLD version requested for the SLD document. Only version 1.0.0 is supported.

VERSION

Mandatory

1.3.0(9.3 and later)

1.1.1 (9.2)

Version as required by OGC interfaces.

REQUEST

Mandatory

N/A

Request name. It must be set to GetLegendGraphic.

LAYER

Mandatory

N/A

Layer for which to produce the legend graphic.

STYLE

Optional

default

Style of layer for which to produce the legend graphic. If not present, the default style is selected. The style may be any valid style available for a layer, including non-SLD internally defined styles.

RULE

Optional

'

Style rule for which to produce the legend graphic, if applicable. When a style has multiple rules but no specific rule is selected, the map service is obligated to produce a graphic that is representative of all the rules of the style.

SLD

Optional

'

Specifies a reference to an SLD document. It works in the same way as the SLD= parameter of the WMS GetMap operation.

SLD_BODY

Optional

'

Allows an SLD document to be included directly in an HTTP GET request. It works in the same way as the SLD_BODY parameter of the WMS GetMap operation.

FORMAT

Optional

image/png (png24)

The MIME type of the file format in which to return the legend graphic. Allowed values are the same as for the FORMAT= parameter of the WMS GetMap request.

WIDTH

Optional

Depends on the specific legend image

Gives a hint for the width of the returned graphic in pixels.

HEIGHT

Optional

Depends on the specific legend image

Gives a hint for the height of the returned graphic in pixels.

EXCEPTIONS

Optional

text/xml (WMS 1.3.0)

application/vnd.ogc.se_xml (WMS 1.1.1 and WMS 1.1.0)

application/vnd.ogc.inimage (WMS 1.0.0)

The MIME type of the format in which to return exceptions. Allowed values are the same as for the EXCEPTIONS= parameter of the WMS GetMap request.