diff --git a/cli/search/register.ts b/cli/search/register.ts
index 38433a4d1..b9aa93e1d 100644
--- a/cli/search/register.ts
+++ b/cli/search/register.ts
@@ -4,6 +4,24 @@ import Fuse from "fuse.js"
 import kleur from "kleur"
 import { getQueryFromParts } from "cli/utils/get-query-from-parts"
 
+export type MouserSearchResult = {
+  mouser_product_number: string
+  supplier_part_number?: string
+  mfr: string
+  manufacturer?: string
+  package?: string
+  description: string
+  stock: number
+  price?: number
+  product_url?: string
+}
+
+export const formatMouserSearchResult = (
+  component: MouserSearchResult,
+  index: number,
+): string =>
+  `${index + 1}. ${component.mfr} (${component.mouser_product_number}) - ${component.description} (stock: ${component.stock.toLocaleString("en-US")})`
+
 export const registerSearch = (program: Command) => {
   program
     .command("search")
@@ -17,6 +35,7 @@ export const registerSearch = (program: Command) => {
     .option("--kicad", "Search KiCad footprints")
     .option("--jlcpcb", "Search JLCPCB components")
     .option("--lcsc", "Alias for --jlcpcb")
+    .option("--mouser", "Search Mouser components")
     .option("--tscircuit", "Search tscircuit registry packages")
     .option("--json", "Output search results as JSON")
     .action(
@@ -26,15 +45,21 @@ export const registerSearch = (program: Command) => {
           kicad?: boolean
           jlcpcb?: boolean
           lcsc?: boolean
+          mouser?: boolean
           tscircuit?: boolean
           json?: boolean
         },
       ) => {
         const query = getQueryFromParts(queryParts)
         const hasFilters =
-          opts.kicad || opts.jlcpcb || opts.lcsc || opts.tscircuit
+          opts.kicad ||
+          opts.jlcpcb ||
+          opts.lcsc ||
+          opts.mouser ||
+          opts.tscircuit
         const searchKicad = opts.kicad
         const searchJlc = opts.jlcpcb || opts.lcsc || !hasFilters
+        const searchMouser = opts.mouser
         const searchTscircuit = opts.tscircuit
 
         let results: {
@@ -55,6 +80,8 @@ export const registerSearch = (program: Command) => {
           price: number
         }> = []
 
+        let mouserResults: MouserSearchResult[] = []
+
         let kicadResults: string[] = []
 
         try {
@@ -75,6 +102,22 @@ export const registerSearch = (program: Command) => {
             jlcResults = jlcResponse?.components ?? []
           }
 
+          if (searchMouser) {
+            const mouserSearchUrl =
+              "https://mousersearch.tscircuit.com/api/search?limit=10&q=" +
+              encodeURIComponent(query)
+            const mouserResponse = await fetch(mouserSearchUrl, {
+              headers: { accept: "application/json" },
+            })
+            if (!mouserResponse.ok) {
+              throw new Error(
+                `Mouser search returned ${mouserResponse.status}: ${await mouserResponse.text()}`,
+              )
+            }
+            const mouserJson = await mouserResponse.json()
+            mouserResults = mouserJson?.components ?? []
+          }
+
           if (searchKicad) {
             const kicadFiles: string[] = await fetch(
               "https://kicad-mod-cache.tscircuit.com/kicad_files.json",
@@ -107,6 +150,10 @@ export const registerSearch = (program: Command) => {
               source: "jlcpcb" as const,
               ...comp,
             })),
+            ...mouserResults.map((comp) => ({
+              source: "mouser" as const,
+              ...comp,
+            })),
           ]
 
           console.log(
@@ -125,11 +172,13 @@ export const registerSearch = (program: Command) => {
         if (
           !kicadResults.length &&
           !results.packages.length &&
-          !jlcResults.length
+          !jlcResults.length &&
+          !mouserResults.length
         ) {
           const sources = [
             searchTscircuit && "tscircuit registry",
             searchJlc && "JLCPCB",
+            searchMouser && "Mouser",
             searchKicad && "KiCad",
           ].filter(Boolean)
           console.log(
@@ -194,6 +243,21 @@ export const registerSearch = (program: Command) => {
             )
           })
         }
+
+        if (mouserResults.length) {
+          console.log()
+          console.log(
+            kleur
+              .bold()
+              .underline(
+                `Found ${mouserResults.length} component(s) in Mouser search:`,
+              ),
+          )
+
+          mouserResults.forEach((component, index) => {
+            console.log(formatMouserSearchResult(component, index))
+          })
+        }
         console.log("\n")
       },
     )
diff --git a/tests/cli/search/search-mouser.test.ts b/tests/cli/search/search-mouser.test.ts
new file mode 100644
index 000000000..c9861becd
--- /dev/null
+++ b/tests/cli/search/search-mouser.test.ts
@@ -0,0 +1,68 @@
+import { afterEach, describe, expect, it, spyOn } from "bun:test"
+import { Command } from "commander"
+import { registerSearch } from "../../../cli/search/register"
+
+const originalFetch = globalThis.fetch
+
+afterEach(() => {
+  globalThis.fetch = originalFetch
+})
+
+describe("search --mouser", () => {
+  it("queries mousersearch and emits unified JSON results", async () => {
+    let requestedUrl = ""
+    globalThis.fetch = (async (input) => {
+      requestedUrl = String(input)
+      return new Response(
+        JSON.stringify({
+          components: [
+            {
+              mouser_product_number: "603-RC0603FR-0710KL",
+              mfr: "RC0603FR-0710KL",
+              manufacturer: "YAGEO",
+              package: "0603 (1608 Metric)",
+              description: "Thick Film Resistors - SMD 10K ohm 1%",
+              stock: 1200,
+              price: 0.01,
+            },
+          ],
+        }),
+        { status: 200 },
+      )
+    }) as typeof fetch
+
+    const log = spyOn(console, "log").mockImplementation(() => {})
+    const program = new Command().name("tsci")
+    registerSearch(program)
+
+    await program.parseAsync([
+      "node",
+      "tsci",
+      "search",
+      "--mouser",
+      "--json",
+      "10k",
+      "0603",
+    ])
+
+    expect(requestedUrl).toBe(
+      "https://mousersearch.tscircuit.com/api/search?limit=10&q=10k%200603",
+    )
+    const output = String(log.mock.calls[0]?.[0])
+    const parsed = JSON.parse(output)
+    expect(parsed.query).toBe("10k 0603")
+    expect(parsed.results).toEqual([
+      {
+        source: "mouser",
+        mouser_product_number: "603-RC0603FR-0710KL",
+        mfr: "RC0603FR-0710KL",
+        manufacturer: "YAGEO",
+        package: "0603 (1608 Metric)",
+        description: "Thick Film Resistors - SMD 10K ohm 1%",
+        stock: 1200,
+        price: 0.01,
+      },
+    ])
+    log.mockRestore()
+  })
+})