diff --git a/action/action.go b/action/action.go
index fcca2364..5e3e05fd 100644
--- a/action/action.go
+++ b/action/action.go
@@ -9,6 +9,9 @@ const (
 	// addAction defines the action for creating a resource.
 	addAction = "add"
 
+	// cancelAction defines the action for canceling of a resource.
+	cancelAction = "cancel"
+
 	// chownAction defines the action for changing ownership of a resource.
 	chownAction = "chown"
 
diff --git a/action/build/cancel.go b/action/build/cancel.go
new file mode 100644
index 00000000..a3a40d0d
--- /dev/null
+++ b/action/build/cancel.go
@@ -0,0 +1,57 @@
+// Copyright (c) 2020 Target Brands, Inc. All rights reserved.
+//
+// Use of this source code is governed by the LICENSE file in this repository.
+
+package build
+
+import (
+	"github.com/go-vela/cli/internal/output"
+
+	"github.com/go-vela/sdk-go/vela"
+
+	"github.com/sirupsen/logrus"
+)
+
+// Cancel cancels a build based off the provided configuration.
+func (c *Config) Cancel(client *vela.Client) error {
+	logrus.Debug("executing cancel for build configuration")
+
+	logrus.Tracef("canceling build %s/%s/%d", c.Org, c.Repo, c.Number)
+
+	// send API call to cancel a build
+	//
+	// https://pkg.go.dev/github.com/go-vela/sdk-go/vela?tab=doc#BuildService.Cancel
+	build, _, err := client.Build.Cancel(c.Org, c.Repo, c.Number)
+	if err != nil {
+		return err
+	}
+
+	// handle the output based off the provided configuration
+	switch c.Output {
+	case output.DriverDump:
+		// output the build in dump format
+		//
+		// https://pkg.go.dev/github.com/go-vela/cli/internal/output?tab=doc#Dump
+		return output.Dump(build)
+	case output.DriverJSON:
+		// output the build in JSON format
+		//
+		// https://pkg.go.dev/github.com/go-vela/cli/internal/output?tab=doc#JSON
+		return output.JSON(build)
+	case output.DriverSpew:
+		// output the build in spew format
+		//
+		// https://pkg.go.dev/github.com/go-vela/cli/internal/output?tab=doc#Spew
+		return output.Spew(build)
+	case output.DriverYAML:
+		// output the build in YAML format
+		//
+		// https://pkg.go.dev/github.com/go-vela/cli/internal/output?tab=doc#YAML
+		return output.YAML(&build)
+	default:
+		// output the build in stdout format
+		//
+		// https://pkg.go.dev/github.com/go-vela/cli/internal/output?tab=doc#Stdout
+		return output.Stdout(build)
+	}
+}
diff --git a/action/build/cancel_test.go b/action/build/cancel_test.go
new file mode 100644
index 00000000..ab329463
--- /dev/null
+++ b/action/build/cancel_test.go
@@ -0,0 +1,111 @@
+// Copyright (c) 2020 Target Brands, Inc. All rights reserved.
+//
+// Use of this source code is governed by the LICENSE file in this repository.
+
+// Package build contains resources for managing builds
+// nolint:dupl // code is similar to action/build_restart.go, but is not duplicative
+package build
+
+import (
+	"net/http/httptest"
+	"testing"
+
+	"github.com/go-vela/mock/server"
+
+	"github.com/go-vela/sdk-go/vela"
+)
+
+func TestBuild_Config_Cancel(t *testing.T) {
+	// setup test server
+	s := httptest.NewServer(server.FakeHandler())
+
+	// create a vela client
+	client, err := vela.NewClient(s.URL, "", nil)
+	if err != nil {
+		t.Errorf("unable to create client: %v", err)
+	}
+
+	// setup tests
+	tests := []struct {
+		failure bool
+		config  *Config
+	}{
+		{
+			failure: false,
+			config: &Config{
+				Action: "cancel",
+				Org:    "github",
+				Repo:   "octocat",
+				Number: 1,
+				Output: "",
+			},
+		},
+		{
+			failure: false,
+			config: &Config{
+				Action: "cancel",
+				Org:    "github",
+				Repo:   "octocat",
+				Number: 1,
+				Output: "dump",
+			},
+		},
+		{
+			failure: false,
+			config: &Config{
+				Action: "cancel",
+				Org:    "github",
+				Repo:   "octocat",
+				Number: 1,
+				Output: "json",
+			},
+		},
+		{
+			failure: false,
+			config: &Config{
+				Action: "cancel",
+				Org:    "github",
+				Repo:   "octocat",
+				Number: 1,
+				Output: "spew",
+			},
+		},
+		{
+			failure: false,
+			config: &Config{
+				Action: "cancel",
+				Org:    "github",
+				Repo:   "octocat",
+				Number: 1,
+				Output: "yaml",
+			},
+		},
+		{
+			failure: true,
+			config: &Config{
+				Action: "cancel",
+				Org:    "github",
+				Repo:   "octocat",
+				Number: 0,
+				Output: "",
+			},
+		},
+	}
+
+	// run tests
+	for _, test := range tests {
+		err := test.config.Cancel(client)
+
+		if test.failure {
+			if err == nil {
+				t.Errorf("Cancel should have returned err")
+			}
+
+			continue
+		}
+
+		if err != nil {
+			t.Errorf("Cancel returned err: %v", err)
+		}
+	}
+}
diff --git a/action/build_cancel.go b/action/build_cancel.go
new file mode 100644
index 00000000..ccb6f853
--- /dev/null
+++ b/action/build_cancel.go
@@ -0,0 +1,114 @@
+// Copyright (c) 2020 Target Brands, Inc. All rights reserved.
+//
+// Use of this source code is governed by the LICENSE file in this repository.
+
+// Package action contains all cli actions
+// nolint:dupl // code is similar to action/build_restart.go, but is not duplicative
+package action
+
+import (
+	"fmt"
+
+	"github.com/go-vela/cli/action/build"
+	"github.com/go-vela/cli/internal"
+	"github.com/go-vela/cli/internal/client"
+
+	"github.com/urfave/cli/v2"
+)
+
+// BuildCancel defines the command for canceling a build.
+var BuildCancel = &cli.Command{
+	Name:        internal.FlagBuild,
+	Description: "Use this command to cancel a build.",
+	Usage:       "Cancel the provided build",
+	Action:      buildCancel,
+	Flags: []cli.Flag{
+
+		// Repo Flags
+
+		&cli.StringFlag{
+			EnvVars: []string{"VELA_ORG", "BUILD_ORG"},
+			Name:    internal.FlagOrg,
+			Aliases: []string{"o"},
+			Usage:   "provide the organization for the build",
+		},
+		&cli.StringFlag{
+			EnvVars: []string{"VELA_REPO", "BUILD_REPO"},
+			Name:    internal.FlagRepo,
+			Aliases: []string{"r"},
+			Usage:   "provide the repository for the build",
+		},
+
+		// Build Flags
+
+		&cli.IntFlag{
+			EnvVars: []string{"VELA_BUILD", "BUILD_NUMBER"},
+			Name:    internal.FlagBuild,
+			Aliases: []string{"b"},
+			Usage:   "provide the number for the build",
+		},
+
+		// Output Flags
+
+		&cli.StringFlag{
+			EnvVars: []string{"VELA_OUTPUT", "BUILD_OUTPUT"},
+			Name:    internal.FlagOutput,
+			Aliases: []string{"op"},
+			Usage:   "format the output in json, spew or yaml",
+		},
+	},
+	CustomHelpTemplate: fmt.Sprintf(`%s
+EXAMPLES:
+  1. Cancel existing build for a repository.
+    $ {{.HelpName}} --org MyOrg --repo MyRepo --build 1
+  2. Cancel existing build for a repository when config or environment variables are set.
+    $ {{.HelpName}} --build 1
+
+DOCUMENTATION:
+
+  https://go-vela.github.io/docs/cli/build/cancel/
+`, cli.CommandHelpTemplate),
+}
+
+// helper function to capture the provided
+// input and create the object used to
+// cancel a build.
+func buildCancel(c *cli.Context) error {
+	// load variables from the config file
+	err := load(c)
+	if err != nil {
+		return err
+	}
+
+	// parse the Vela client from the context
+	//
+	// https://pkg.go.dev/github.com/go-vela/cli/internal/client?tab=doc#Parse
+	client, err := client.Parse(c)
+	if err != nil {
+		return err
+	}
+
+	// create the build configuration
+	//
+	// https://pkg.go.dev/github.com/go-vela/cli/action/build?tab=doc#Config
+	b := &build.Config{
+		Action: cancelAction,
+		Org:    c.String(internal.FlagOrg),
+		Repo:   c.String(internal.FlagRepo),
+		Number: c.Int(internal.FlagBuild),
+		Output: c.String(internal.FlagOutput),
+	}
+
+	// validate build configuration
+	//
+	// https://pkg.go.dev/github.com/go-vela/cli/action/build?tab=doc#Config.Validate
+	err = b.Validate()
+	if err != nil {
+		return err
+	}
+
+	// execute the cancel call for the build configuration
+	//
+	// https://pkg.go.dev/github.com/go-vela/cli/action/build?tab=doc#Config.Cancel
+	return b.Cancel(client)
+}
diff --git a/action/build_cancel_test.go b/action/build_cancel_test.go
new file mode 100644
index 00000000..0b81d5a2
--- /dev/null
+++ b/action/build_cancel_test.go
@@ -0,0 +1,74 @@
+// Copyright (c) 2020 Target Brands, Inc. All rights reserved.
+//
+// Use of this source code is governed by the LICENSE file in this repository.
+
+// Package action contains all cli actions
+// nolint:dupl // code is similar to action/build_restart.go, but is not duplicative
+package action
+
+import (
+	"flag"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/go-vela/cli/test"
+	"github.com/go-vela/mock/server"
+
+	"github.com/urfave/cli/v2"
+)
+
+func TestAction_BuildCancel(t *testing.T) {
+	// setup test server
+	s := httptest.NewServer(server.FakeHandler())
+
+	// setup flags
+	authSet := flag.NewFlagSet("test", 0)
+	authSet.String("api.addr", s.URL, "doc")
+	authSet.String("api.token.access", test.TestTokenGood, "doc")
+	authSet.String("api.token.refresh", "superSecretRefreshToken", "doc")
+
+	fullSet := flag.NewFlagSet("test", 0)
+	fullSet.String("api.addr", s.URL, "doc")
+	fullSet.String("api.token.access", test.TestTokenGood, "doc")
+	fullSet.String("api.token.refresh", "superSecretRefreshToken", "doc")
+	fullSet.String("org", "github", "doc")
+	fullSet.String("repo", "octocat", "doc")
+	fullSet.Int("build", 1, "doc")
+	fullSet.String("output", "json", "doc")
+
+	// setup tests
+	tests := []struct {
+		failure bool
+		set     *flag.FlagSet
+	}{
+		{
+			failure: false,
+			set:     fullSet,
+		},
+		{
+			failure: true,
+			set:     authSet,
+		},
+		{
+			failure: true,
+			set:     flag.NewFlagSet("test", 0),
+		},
+	}
+
+	// run tests
+	for _, test := range tests {
+		err := buildCancel(cli.NewContext(&cli.App{Name: "vela", Version: "v0.0.0"}, test.set, nil))
+
+		if test.failure {
+			if err == nil {
+				t.Errorf("buildCancel should have returned err")
+			}
+
+			continue
+		}
+
+		if err != nil {
+			t.Errorf("buildCancel returned err: %v", err)
+		}
+	}
+}
diff --git a/cmd/vela-cli/cancel.go b/cmd/vela-cli/cancel.go
new file mode 100644
index 00000000..82a6776a
--- /dev/null
+++ b/cmd/vela-cli/cancel.go
@@ -0,0 +1,27 @@
+// Copyright (c) 2020 Target Brands, Inc. All rights reserved.
+//
+// Use of this source code is governed by the LICENSE file in this repository.
+
+package main
+
+import (
+	"github.com/go-vela/cli/action"
+
+	"github.com/urfave/cli/v2"
+)
+
+// cancelCmds defines the commands for canceling resources.
+var cancelCmds = &cli.Command{
+	Name:                   "cancel",
+	Category:               "Resource Management",
+	Aliases:                []string{"cx"},
+	Description:            "Use this command to cancel a resource for Vela.",
+	Usage:                  "Cancel a resource for Vela via subcommands",
+	UseShortOptionHandling: true,
+	Subcommands: []*cli.Command{
+		// add the sub command for canceling a build
+		//
+		// https://pkg.go.dev/github.com/go-vela/cli/action?tab=doc#BuildCancel
+		action.BuildCancel,
+	},
+}
diff --git a/cmd/vela-cli/main.go b/cmd/vela-cli/main.go
index bb30ea36..74469405 100644
--- a/cmd/vela-cli/main.go
+++ b/cmd/vela-cli/main.go
@@ -48,6 +48,7 @@ func main() {
 		action.Login,
 		action.Version,
 		addCmds,
+		cancelCmds,
 		chownCmds,
 		compileCmds,
 		execCmds,
diff --git a/go.mod b/go.mod
index 5da6249f..ac3b7d0b 100644
--- a/go.mod
+++ b/go.mod
@@ -10,8 +10,8 @@ require (
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
 	github.com/dustin/go-humanize v1.0.0
 	github.com/go-vela/compiler v0.6.1-0.20210111222408-a8b5012a5943
-	github.com/go-vela/mock v0.6.1-0.20210111203055-2629f560e9b7
-	github.com/go-vela/sdk-go v0.6.1-0.20210111215046-d4ccd4904b94
+	github.com/go-vela/mock v0.6.1-0.20210112201653-ecad0dfe0e48
+	github.com/go-vela/sdk-go v0.6.1-0.20210112212028-77fd54952b28
 	github.com/go-vela/types v0.6.1-0.20210111181528-d3bb371e9ec6
 	github.com/gosuri/uitable v0.0.4
 	github.com/lunixbochs/vtclean v1.0.0 // indirect
diff --git a/go.sum b/go.sum
index 8df68e0a..5299fbef 100644
--- a/go.sum
+++ b/go.sum
@@ -122,10 +122,10 @@ github.com/go-playground/validator/v10 v10.4.1 h1:pH2c5ADXtd66mxoE0Zm9SUhxE20r7a
 github.com/go-playground/validator/v10 v10.4.1/go.mod h1:nlOn6nFhuKACm19sB/8EGNn9GlaMV7XkbRSipzJ0Ii4=
 github.com/go-vela/compiler v0.6.1-0.20210111222408-a8b5012a5943 h1:u5SnyLxzI/3dXUJYADUMqQxPuS1urlXOz9KX8Uf7Ezg=
 github.com/go-vela/compiler v0.6.1-0.20210111222408-a8b5012a5943/go.mod h1:yvHes2dsuuqKS4izs+iKySiQsbfo4DCvnuAUSk93pbA=
-github.com/go-vela/mock v0.6.1-0.20210111203055-2629f560e9b7 h1:X8MlnMw6ipcRHnLWm4IR0+HD3YVzKVEiVGgWd+iImtQ=
-github.com/go-vela/mock v0.6.1-0.20210111203055-2629f560e9b7/go.mod h1:AYp7yyYW10fRmUCfnUj7QdpAdxor7mDFn163R7ni4Dk=
-github.com/go-vela/sdk-go v0.6.1-0.20210111215046-d4ccd4904b94 h1:4gf7MAd9QxfL1N5AYKp+QOAXShRO4v8Mdr+/zgzx9l8=
-github.com/go-vela/sdk-go v0.6.1-0.20210111215046-d4ccd4904b94/go.mod h1:+RRcqqGGg2fYUuOYL5Jg1iNsQ8+cSA3u+tb+pB1xEwY=
+github.com/go-vela/mock v0.6.1-0.20210112201653-ecad0dfe0e48 h1:OBMFP3jxFCLeeWYYbW9QzOoixMlEdw63yDDzrLIKSkU=
+github.com/go-vela/mock v0.6.1-0.20210112201653-ecad0dfe0e48/go.mod h1:AYp7yyYW10fRmUCfnUj7QdpAdxor7mDFn163R7ni4Dk=
+github.com/go-vela/sdk-go v0.6.1-0.20210112212028-77fd54952b28 h1:Ya2UexsPMFf8RrCGm+A9v4G5rlIQf5Y/UP5WXLPMh3o=
+github.com/go-vela/sdk-go v0.6.1-0.20210112212028-77fd54952b28/go.mod h1:hQZBdM8HBnSRrUjDh5CMufTFZCqnTvbND0x+qT+CreQ=
 github.com/go-vela/types v0.6.1-0.20210111181528-d3bb371e9ec6 h1:zmdwRI81qWFTw7H37nIzu/Y3UoSD5cih0UwjeO3kI3o=
 github.com/go-vela/types v0.6.1-0.20210111181528-d3bb371e9ec6/go.mod h1:ATtwTwp2l4jI4GUmw840xHZgHmg8FbZPo4g0azImggA=
 github.com/goccy/go-yaml v1.8.4 h1:AOEdR7aQgbgwHznGe3BLkDQVujxCPUpHOZZcQcp8Y3M=