diff --git a/blossom.go b/blossom.go
new file mode 100644
index 0000000..f4b039f
--- /dev/null
+++ b/blossom.go
@@ -0,0 +1,222 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"github.com/nbd-wtf/go-nostr/keyer"
+	"github.com/nbd-wtf/go-nostr/nipb0/blossom"
+	"github.com/urfave/cli/v3"
+)
+
+var blossomCmd = &cli.Command{
+	Name:                      "blossom",
+	Suggest:                   true,
+	UseShortOptionHandling:    true,
+	Usage:                     "an army knife for blossom things",
+	DisableSliceFlagSeparator: true,
+	Flags: append(defaultKeyFlags,
+		&cli.StringFlag{
+			Name:     "server",
+			Aliases:  []string{"s"},
+			Usage:    "the hostname of the target mediaserver",
+			Required: true,
+		},
+	),
+	Commands: []*cli.Command{
+		{
+			Name:                      "list",
+			Usage:                     "lists blobs from a pubkey",
+			Description:               `takes one pubkey passed as an argument or derives one from the --sec supplied. if that is given then it will also pre-authorize the list, which some servers may require.`,
+			DisableSliceFlagSeparator: true,
+			ArgsUsage:                 "[pubkey]",
+			Action: func(ctx context.Context, c *cli.Command) error {
+				var client *blossom.Client
+				pubkey := c.Args().First()
+				if pubkey != "" {
+					client = blossom.NewClient(client.GetMediaServer(), keyer.NewReadOnlySigner(pubkey))
+				} else {
+					var err error
+					client, err = getBlossomClient(ctx, c)
+					if err != nil {
+						return err
+					}
+				}
+
+				bds, err := client.List(ctx)
+				if err != nil {
+					return err
+				}
+
+				for _, bd := range bds {
+					stdout(bd)
+				}
+
+				return nil
+			},
+		},
+		{
+			Name:                      "upload",
+			Usage:                     "uploads a file to a specific mediaserver.",
+			Description:               `takes any number of local file paths and uploads them to a mediaserver, printing the resulting blob descriptions when successful.`,
+			DisableSliceFlagSeparator: true,
+			ArgsUsage:                 "[files...]",
+			Action: func(ctx context.Context, c *cli.Command) error {
+				client, err := getBlossomClient(ctx, c)
+				if err != nil {
+					return err
+				}
+
+				hasError := false
+				for _, fpath := range c.Args().Slice() {
+					bd, err := client.UploadFile(ctx, fpath)
+					if err != nil {
+						fmt.Fprintf(os.Stderr, "%s\n", err)
+						hasError = true
+						continue
+					}
+
+					j, _ := json.Marshal(bd)
+					stdout(string(j))
+				}
+
+				if hasError {
+					os.Exit(3)
+				}
+				return nil
+			},
+		},
+		{
+			Name:                      "download",
+			Usage:                     "downloads files from mediaservers",
+			Description:               `takes any number of sha256 hashes as hex, downloads them and prints them to stdout (unless --output is specified).`,
+			DisableSliceFlagSeparator: true,
+			ArgsUsage:                 "[sha256...]",
+			Flags: []cli.Flag{
+				&cli.StringSliceFlag{
+					Name:    "output",
+					Aliases: []string{"o"},
+					Usage:   "file name to save downloaded file to, can be passed multiple times when downloading multiple hashes",
+				},
+			},
+			Action: func(ctx context.Context, c *cli.Command) error {
+				client, err := getBlossomClient(ctx, c)
+				if err != nil {
+					return err
+				}
+
+				outputs := c.StringSlice("output")
+
+				hasError := false
+				for i, hash := range c.Args().Slice() {
+					if len(outputs)-1 >= i && outputs[i] != "--" {
+						// save to this file
+						err := client.DownloadToFile(ctx, hash, outputs[i])
+						if err != nil {
+							fmt.Fprintf(os.Stderr, "%s\n", err)
+							hasError = true
+						}
+					} else {
+						// if output wasn't specified, print to stdout
+						data, err := client.Download(ctx, hash)
+						if err != nil {
+							fmt.Fprintf(os.Stderr, "%s\n", err)
+							hasError = true
+							continue
+						}
+						os.Stdout.Write(data)
+					}
+				}
+
+				if hasError {
+					os.Exit(2)
+				}
+				return nil
+			},
+		},
+		{
+			Name:    "del",
+			Aliases: []string{"delete"},
+			Usage:   "deletes a file from a mediaserver",
+			Description: `takes any number of sha256 hashes, signs authorizations and deletes them from the current mediaserver.
+
+if any of the files are not deleted command will fail, otherwise it will succeed. it will also print error messages to stderr and the hashes it successfully deletes to stdout.`,
+			DisableSliceFlagSeparator: true,
+			ArgsUsage:                 "[sha256...]",
+			Action: func(ctx context.Context, c *cli.Command) error {
+				client, err := getBlossomClient(ctx, c)
+				if err != nil {
+					return err
+				}
+
+				hasError := false
+				for _, hash := range c.Args().Slice() {
+					err := client.Delete(ctx, hash)
+					if err != nil {
+						fmt.Fprintf(os.Stderr, "%s\n", err)
+						hasError = true
+						continue
+					}
+
+					stdout(hash)
+				}
+
+				if hasError {
+					os.Exit(3)
+				}
+				return nil
+			},
+		},
+		{
+			Name:  "check",
+			Usage: "asks the mediaserver if it has the specified hashes.",
+			Description: `uses the HEAD request to succintly check if the server has the specified sha256 hash.
+
+if any of the files are not found the command will fail, otherwise it will succeed. it will also print error messages to stderr and the hashes it finds to stdout.`,
+			DisableSliceFlagSeparator: true,
+			ArgsUsage:                 "[sha256...]",
+			Action: func(ctx context.Context, c *cli.Command) error {
+				client, err := getBlossomClient(ctx, c)
+				if err != nil {
+					return err
+				}
+
+				hasError := false
+				for _, hash := range c.Args().Slice() {
+					err := client.Check(ctx, hash)
+					if err != nil {
+						hasError = true
+						fmt.Fprintf(os.Stderr, "%s\n", err)
+						continue
+					}
+
+					stdout(hash)
+				}
+
+				if hasError {
+					os.Exit(2)
+				}
+				return nil
+			},
+		},
+		{
+			Name:                      "mirror",
+			Usage:                     "",
+			Description:               ``,
+			DisableSliceFlagSeparator: true,
+			ArgsUsage:                 "",
+			Action: func(ctx context.Context, c *cli.Command) error {
+				return nil
+			},
+		},
+	},
+}
+
+func getBlossomClient(ctx context.Context, c *cli.Command) (*blossom.Client, error) {
+	keyer, _, err := gatherKeyerFromArguments(ctx, c)
+	if err != nil {
+		return nil, err
+	}
+	return blossom.NewClient(c.String("server"), keyer), nil
+}
diff --git a/go.mod b/go.mod
index 2948186..0866e84 100644
--- a/go.mod
+++ b/go.mod
@@ -16,13 +16,14 @@ require (
 	github.com/mailru/easyjson v0.9.0
 	github.com/mark3labs/mcp-go v0.8.3
 	github.com/markusmobius/go-dateparser v1.2.3
-	github.com/nbd-wtf/go-nostr v0.50.0
+	github.com/nbd-wtf/go-nostr v0.50.1
 	github.com/urfave/cli/v3 v3.0.0-beta1
 	golang.org/x/exp v0.0.0-20250106191152-7588d65b2ba8
 )
 
 require (
 	fiatjaf.com/lib v0.2.0 // indirect
+	github.com/ImVexed/fasturl v0.0.0-20230304231329-4e41488060f3 // indirect
 	github.com/andybalholm/brotli v1.0.5 // indirect
 	github.com/btcsuite/btcd v0.24.2 // indirect
 	github.com/btcsuite/btcd/btcutil v1.1.5 // indirect
@@ -44,10 +45,12 @@ require (
 	github.com/hablullah/go-juliandays v1.0.0 // indirect
 	github.com/jalaali/go-jalaali v0.0.0-20210801064154-80525e88d958 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
-	github.com/klauspost/compress v1.17.11 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.10 // indirect
 	github.com/magefile/mage v1.14.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/minio/simdjson-go v0.4.5 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
@@ -64,6 +67,6 @@ require (
 	github.com/x448/float16 v0.8.4 // indirect
 	golang.org/x/crypto v0.32.0 // indirect
 	golang.org/x/net v0.34.0 // indirect
-	golang.org/x/sys v0.29.0 // indirect
+	golang.org/x/sys v0.30.0 // indirect
 	golang.org/x/text v0.21.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 01fa5eb..9f4c18c 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,7 @@
 fiatjaf.com/lib v0.2.0 h1:TgIJESbbND6GjOgGHxF5jsO6EMjuAxIzZHPo5DXYexs=
 fiatjaf.com/lib v0.2.0/go.mod h1:Ycqq3+mJ9jAWu7XjbQI1cVr+OFgnHn79dQR5oTII47g=
+github.com/ImVexed/fasturl v0.0.0-20230304231329-4e41488060f3 h1:ClzzXMDDuUbWfNNZqGeYq4PnYOlwlOVIvSyNaIy0ykg=
+github.com/ImVexed/fasturl v0.0.0-20230304231329-4e41488060f3/go.mod h1:we0YA5CsBbH5+/NUzC/AlMmxaDtWlXeNsqrwXjTzmzA=
 github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
 github.com/andybalholm/brotli v1.0.5 h1:8uQZIdzKmjc/iuPu7O2ioW48L81FgatrcpfFmiq/cCs=
 github.com/andybalholm/brotli v1.0.5/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
@@ -58,6 +60,7 @@ github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 h1:fAjc9m62+UWV/WA
 github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/dvyukov/go-fuzz v0.0.0-20200318091601-be3528f3a813/go.mod h1:11Gm+ccJnvAhCNLlf5+cS9KjtbaD5I5zaZpFMsTHWTw=
 github.com/elliotchance/pie/v2 v2.7.0 h1:FqoIKg4uj0G/CrLGuMS9ejnFKa92lxE1dEgBD3pShXg=
 github.com/elliotchance/pie/v2 v2.7.0/go.mod h1:18t0dgGFH006g4eVdDtWfgFZPQEgl10IoEO8YWEq3Og=
 github.com/elnosh/gonuts v0.3.1-0.20250123162555-7c0381a585e3 h1:k7evIqJ2BtFn191DgY/b03N2bMYA/iQwzr4f/uHYn20=
@@ -106,8 +109,10 @@ github.com/jrick/logrotate v1.0.0/go.mod h1:LNinyqDIJnpAur+b8yyulnQw/wDuN1+BYKlT
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/kkdai/bstream v0.0.0-20161212061736-f391b8402d23/go.mod h1:J+Gs4SYgM6CZQHDETBtE9HaSEkGmuNXF86RwHhHUvq4=
-github.com/klauspost/compress v1.17.11 h1:In6xLpyWOi1+C7tXUUWv2ot1QvBjxevKAaI6IXrJmUc=
-github.com/klauspost/compress v1.17.11/go.mod h1:pMDklpSncoRMuLFrf1W9Ss9KT+0rH90U12bZKk7uwG0=
+github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
+github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
+github.com/klauspost/cpuid/v2 v2.2.10 h1:tBs3QSyvjDyFTq3uoc/9xFpCuOsJQFNPiAhYdw2skhE=
+github.com/klauspost/cpuid/v2 v2.2.10/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
 github.com/magefile/mage v1.14.0 h1:6QDX3g6z1YvJ4olPhT1wksUcSa/V0a1B+pJb73fBjyo=
 github.com/magefile/mage v1.14.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
 github.com/mailru/easyjson v0.9.0 h1:PrnmzHw7262yW8sTBwxi1PdJA3Iw/EKBa8psRf7d9a4=
@@ -121,13 +126,15 @@ github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovk
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/minio/simdjson-go v0.4.5 h1:r4IQwjRGmWCQ2VeMc7fGiilu1z5du0gJ/I/FsKwgo5A=
+github.com/minio/simdjson-go v0.4.5/go.mod h1:eoNz0DcLQRyEDeaPr4Ru6JpjlZPzbA0IodxVJk8lO8E=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
 github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
-github.com/nbd-wtf/go-nostr v0.50.0 h1:MgL/HPnWSTb5BFCL9RuzYQQpMrTi67MvHem4nWFn47E=
-github.com/nbd-wtf/go-nostr v0.50.0/go.mod h1:M50QnhkraC5Ol93v3jqxSMm1aGxUQm5mlmkYw5DJzh8=
+github.com/nbd-wtf/go-nostr v0.50.1 h1:l02wKcnYVyvjnj53CNB3I/C161uoH1W51sPWbrLb9C0=
+github.com/nbd-wtf/go-nostr v0.50.1/go.mod h1:gOzf8mcTlMs7e+LjYDssRU4Vb/YGeeYO61aDNrxDStY=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
@@ -149,6 +156,7 @@ github.com/savsgio/gotils v0.0.0-20230208104028-c358bd845dee h1:8Iv5m6xEo1NR1Avp
 github.com/savsgio/gotils v0.0.0-20230208104028-c358bd845dee/go.mod h1:qwtSXrKuJh/zsFQ12yEE89xfCrGKK63Rr7ctU/uCo4g=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
@@ -200,8 +208,8 @@ golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200814200057-3d37ad5750ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.29.0 h1:TPYlXGxvx1MGTn2GiZDhnjPA9wZzZeGKHHmKhHYvgaU=
-golang.org/x/sys v0.29.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
+golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
diff --git a/main.go b/main.go
index 9fb116f..495f129 100644
--- a/main.go
+++ b/main.go
@@ -22,10 +22,10 @@ var app = &cli.Command{
 	Usage:                     "the nostr army knife command-line tool",
 	DisableSliceFlagSeparator: true,
 	Commands: []*cli.Command{
-		req,
-		count,
-		fetch,
 		event,
+		req,
+		fetch,
+		count,
 		decode,
 		encode,
 		key,
@@ -33,6 +33,7 @@ var app = &cli.Command{
 		relay,
 		bunker,
 		serve,
+		blossomCmd,
 		encrypt,
 		decrypt,
 		outbox,