diff --git a/packages/app/macros/__tests__/macros.test.ts b/packages/app/macros/__tests__/macros.test.ts
index 589a0004c..87f147871 100644
--- a/packages/app/macros/__tests__/macros.test.ts
+++ b/packages/app/macros/__tests__/macros.test.ts
@@ -4,9 +4,11 @@ import { getModel } from '../../models/service'
 import GLDAS_CLM10SUBP_3H_001 from '../../models/__tests__/__fixtures__/collection-metadata/GLDAS_CLM10SUBP_3H_001.json'
 import OML1BRVG_003 from '../../models/__tests__/__fixtures__/collection-metadata/OML1BRVG_003.json'
 import collectionMetadataModel from '../../models/__tests__/__fixtures__/models/collection-metadata.json'
+import { getAllWebhookURLs } from '../service'
 import faqsModelWithOneMacro from './__fixtures__/faqs-model-one-macro.json'
 
 describe('Template Macros', () => {
+    const env = process.env
     let db
 
     beforeAll(async () => {
@@ -23,6 +25,14 @@ describe('Template Macros', () => {
         await db.collection('Collection Metadata').deleteMany({})
     })
 
+    beforeEach(() => {
+        process.env = { ...env }
+    })
+
+    afterEach(() => {
+        process.env = { ...env }
+    })
+
     describe('list', () => {
         it('gets values from the path to populate the schema', async () => {
             const [error, model] = await getModel('FAQs', {
@@ -75,4 +85,70 @@ describe('Template Macros', () => {
             `)
         })
     })
+
+    describe('webhooks', () => {
+        test('gets webhook URLs as ErrorData', async () => {
+            // NOTE: this line needs to be left as escaped JSON.
+            // prettier-ignore
+            process.env.UI_WEBHOOKS =
+"[{\"token\":\"an-example-token-for-endpoint-1\",\"URL\":\"http://example.com/1\"}]"
+
+            const [error, webhookURLs] = await getAllWebhookURLs()
+
+            expect(error).toBeNull()
+            expect(webhookURLs).toMatchInlineSnapshot(`
+                Array [
+                  "http://example.com/1",
+                ]
+            `)
+        })
+
+        test('requires escaped JSON only because the env parser does', async () => {
+            process.env.UI_WEBHOOKS =
+                '[{"token":"an-example-token-for-endpoint-1","URL":"http://example.com/1"}]'
+
+            const [stringError, stringWebhookURLs] = await getAllWebhookURLs()
+
+            expect(stringError).toBeNull()
+            expect(stringWebhookURLs).toMatchInlineSnapshot(`
+                Array [
+                  "http://example.com/1",
+                ]
+            `)
+
+            // @ts-ignore
+            process.env.UI_WEBHOOKS = [
+                {
+                    token: 'an-example-token-for-endpoint-1',
+                    URL: 'http://example.com/1',
+                },
+            ]
+
+            const [literalError, literalWebhookURLs] = await getAllWebhookURLs()
+
+            expect(literalError).toBeNull()
+            expect(literalWebhookURLs).toMatchInlineSnapshot(`
+                Array [
+                  "http://example.com/1",
+                ]
+            `)
+        })
+
+        test('handles unset and nullish env values', async () => {
+            process.env.UI_WEBHOOKS = null
+
+            const [nullError, nullWebhookURLs] = await getAllWebhookURLs()
+
+            expect(nullError).toBeNull()
+            expect(nullWebhookURLs).toMatchInlineSnapshot(`Array []`)
+
+            // @ts-ignore
+            delete process.env.UI_WEBHOOKS
+
+            const [unsetError, unsetWebhookURLs] = await getAllWebhookURLs()
+
+            expect(unsetError).toBeNull()
+            expect(unsetWebhookURLs).toMatchInlineSnapshot(`Array []`)
+        })
+    })
 })
diff --git a/packages/app/utils/__tests__/api.test.ts b/packages/app/utils/__tests__/api.test.ts
new file mode 100644
index 000000000..1f6e1eec4
--- /dev/null
+++ b/packages/app/utils/__tests__/api.test.ts
@@ -0,0 +1,37 @@
+import { parseResponse } from '../api'
+
+describe('parseResponse', () => {
+    const responseMock = {
+        headers: null,
+        async json() {
+            return { foo: 'bar' }
+        },
+        async text() {
+            return 'foo is bar'
+        },
+    } as unknown as Response
+
+    beforeAll(() => {
+        // @ts-ignore
+        responseMock.headers = new Map()
+    })
+
+    test('reads Content-Type header to determine parse type', async () => {
+        responseMock.headers.set('content-type', 'text/plain; charset=utf-8')
+        const resultText = await parseResponse(responseMock)
+        expect(resultText).toEqual(await responseMock.text())
+
+        responseMock.headers.set('content-type', 'application/json; charset=utf-8')
+        const resultJSON = await parseResponse(responseMock)
+        expect(resultJSON).toEqual(await responseMock.json())
+    })
+
+    test('defaults to text()', async () => {
+        responseMock.headers.set(
+            'content-type',
+            'multipart/form-data; boundary=ExampleBoundaryString'
+        )
+        const resultText = await parseResponse(responseMock)
+        expect(resultText).toEqual(await responseMock.text())
+    })
+})
diff --git a/packages/app/webhooks/__tests__/webhooks.test.ts b/packages/app/webhooks/__tests__/webhooks.test.ts
new file mode 100644
index 000000000..15c96aba9
--- /dev/null
+++ b/packages/app/webhooks/__tests__/webhooks.test.ts
@@ -0,0 +1,95 @@
+import type { ModelWithWorkflow } from '../../models/types'
+import { getAllWebhookConfigs, getWebhookConfig, invokeWebhook } from '../service'
+
+describe('Webhook Service', () => {
+    const env = process.env
+
+    beforeAll(() => {
+        global.fetch = jest.fn(() =>
+            Promise.resolve({
+                headers: {
+                    get() {
+                        return 'text/plain; charset=utf-8'
+                    },
+                },
+                ok: true,
+                json: () => Promise.resolve({ foo: 'bar' }),
+                text: () => Promise.resolve('foo is bar'),
+            })
+        ) as jest.Mock
+    })
+
+    beforeEach(() => {
+        process.env = { ...env }
+    })
+
+    afterEach(() => {
+        process.env = { ...env }
+    })
+
+    describe('getAllWebhookConfigs', () => {
+        test('gets all webhook configs as ErrorData', () => {
+            // NOTE: this line needs to be left as escaped JSON.
+            // prettier-ignore
+            process.env.UI_WEBHOOKS =
+"[{\"token\":\"an-example-token-for-endpoint-1\",\"URL\":\"http://example.com/1\"}, {\"token\":\"an-example-token-for-endpoint-2\",\"URL\":\"http://example.com/2\"}]"
+
+            const [error, data] = getAllWebhookConfigs()
+
+            expect(error).toBeNull()
+            expect(data).toMatchInlineSnapshot(`
+                Array [
+                  Object {
+                    "URL": "http://example.com/1",
+                    "token": "an-example-token-for-endpoint-1",
+                  },
+                  Object {
+                    "URL": "http://example.com/2",
+                    "token": "an-example-token-for-endpoint-2",
+                  },
+                ]
+            `)
+        })
+    })
+
+    describe('getWebhookConfig', () => {
+        test('gets webhook config, matching by URL', () => {
+            // NOTE: this line needs to be left as escaped JSON.
+            // prettier-ignore
+            process.env.UI_WEBHOOKS =
+"[{\"token\":\"an-example-token-for-endpoint-1\",\"URL\":\"http://example.com/1\"}, {\"token\":\"an-example-token-for-endpoint-2\",\"URL\":\"http://example.com/2\"}]"
+
+            const [error, data] = getWebhookConfig('http://example.com/2')
+
+            expect(error).toBeNull()
+            expect(data).toMatchInlineSnapshot(`
+                Object {
+                  "URL": "http://example.com/2",
+                  "token": "an-example-token-for-endpoint-2",
+                }
+            `)
+        })
+    })
+
+    describe('invokeWebhook', () => {
+        test('invokes (fetches) a webhook URL', async () => {
+            const fetchSpy = jest.spyOn(global, 'fetch')
+            // NOTE: this line needs to be left as escaped JSON.
+            // prettier-ignore
+            process.env.UI_WEBHOOKS =
+"[{\"token\":\"an-example-token-for-endpoint-1\",\"URL\":\"http://example.com/1\"}, {\"token\":\"an-example-token-for-endpoint-2\",\"URL\":\"http://example.com/2\"}]"
+
+            const [configError, webhook] = getWebhookConfig('http://example.com/2')
+            const [error, result] = await invokeWebhook(webhook, {
+                model: {} as ModelWithWorkflow,
+                document: {},
+                state: 'Draft',
+            })
+
+            expect(configError).toBeNull()
+            expect(error).toBeNull()
+            expect(result).toMatchInlineSnapshot(`"foo is bar"`)
+            expect(fetchSpy).toHaveBeenCalledTimes(1)
+        })
+    })
+})