[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8,"_9":10},"actionData","errors","root",{"_168":169,"_170":171},"routes/_app.x.$handle.$name",{"_96":95,"_32":44,"_105":86,"_27":106,"_13":14,"_107":-5,"_11":108,"_109":110,"_111":112,"_113":114,"_115":116,"_20":-5,"_117":-5,"_118":-5,"_119":25,"_120":121,"_122":59,"_123":-5,"_124":-5,"_125":126},"routes/_app.x.$handle.$name.branch.$branch.version.$version.diff",{"_11":12,"_13":14,"_15":16,"_17":-5,"_18":-5},"project",{"_42":43,"_32":44,"_37":45,"_46":-5,"_47":25,"_48":49,"_50":49,"_51":52,"_53":54,"_18":55,"_56":57,"_58":59,"_60":-5,"_61":-5,"_62":14,"_63":64,"_65":-5,"_66":-5,"_67":-5,"_68":-5,"_69":70,"_71":70,"_72":73,"_74":73,"_75":73,"_76":70,"_77":70,"_78":79,"_80":81,"_82":83,"_84":25},"version",3,"changes",[19],"aiChatInfo","userId",{"_20":21,"_22":23,"_24":25,"_26":25,"_27":28,"_29":28},"file",{"_30":31,"_32":28,"_33":20,"_34":36,"_37":38,"_39":14,"_40":41,"_24":25},"previous",{"_30":31,"_32":28,"_33":20,"_34":35},"deleted",false,"deletedHere","path","README.md","latestPath","fileId","01abb7e2-65a1-11f1-a96f-1607ee4eb77e","name","fileType","content","# What's the simplest way to make an AI phone call?\n\nRemix this val. It's one `fetch`: you type a phone number, Vapi rings it, and an AI has a conversation with whoever answers. One file, two env vars, about seventy lines.\n\nVapi hosts the hard parts — telephony and the live audio bridge to the model — so the whole demo is a single POST to `https://api.vapi.ai/call` with the number to dial and an inline assistant: a first message, a system prompt, and a voice.\n\n## Setup\n\n1. Remix this val.\n2. Sign up at [dashboard.vapi.ai](https://dashboard.vapi.ai) and copy your **private API key** → set env var `VAPI_API_KEY`.\n3. Create a **phone number** in the dashboard (free Vapi numbers work for testing), copy its **ID** → set env var `VAPI_PHONE_NUMBER_ID`.\n4. Open the HTTP endpoint of `main.ts`, type your number in E.164 format (`+15551234567`), and hit **Call me**.\n\n## Files\n\n- `main.ts` — the form, and the one `fetch` that places the call\n\n## Make it yours\n\n- `FIRST_MESSAGE` and `SYSTEM_PROMPT` at the top of `main.ts` set what the AI opens with and how it behaves.\n- `MODEL` and `VOICE` swap the brain and the voice — any provider Vapi supports works.\n- From here you can add tool calls, transcripts, and post-call analysis: see [docs.vapi.ai](https://docs.vapi.ai).\n\n## Notes\n\n- Free Vapi numbers are US-only and meant for testing.\n- Only call numbers you have consent to call — automated calls without consent violate TCPA/FCC rules.\n","# What's the simplest way to make an AI phone call?\n\nThis val serves a tiny form: you type a phone number, Vapi rings it, and an AI has a conversation with whoever answers. Vapi hosts the telephony and the live audio bridge to the model, so the whole demo is one POST to `https://api.vapi.ai/call` — one file, about seventy lines, no imports.\n\n## Setup\n\n1. Remix this val.\n2. Sign up at https://dashboard.vapi.ai and copy your private API key, then set it as an env var:\n\n 👉 Add VAPI_API_KEY here: https://www.val.town/x/templates/vapi-phone-call/environment-variables?key=VAPI_API_KEY\n\n3. Create a phone number in the Vapi dashboard (free Vapi numbers work for testing) and copy its ID:\n\n 👉 Add VAPI_PHONE_NUMBER_ID here: https://www.val.town/x/templates/vapi-phone-call/environment-variables?key=VAPI_PHONE_NUMBER_ID\n\n## Test it\n\nOpen the HTTP endpoint of `main.ts`, type your own number in E.164 format (`+15551234567`), and hit **Call me**. Your phone rings and the AI chats with you. Without the env vars set, the page shows a setup reminder instead of erroring.\n\n## Files\n\n- `main.ts` — the form, and the one `fetch` that places the call\n\n## Notes\n\n- `FIRST_MESSAGE`, `SYSTEM_PROMPT`, `MODEL`, and `VOICE` at the top of `main.ts` control what the AI opens with, how it behaves, and how it sounds.\n- Free Vapi numbers are US-only and meant for testing.\n- From here you can add tool calls, transcripts, and post-call analysis — see https://docs.vapi.ai.\n- Only call numbers you have consent to call — automated calls without consent violate TCPA/FCC rules.\n","createdAt",["D",1781191784588],"branchVersion","branchId","1a083b45-4db0-4390-92b8-ef32e4f387fc","id","bbf68a35-8f24-4158-8ec0-2bf5b96d1556","vapi-phone-call",["D",1781187727948],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Make an AI phone call with one fetch to Vapi","imageUrl","https://imagedelivery.net/iHX6Ovru0O7AjmyT5yZRoA/e638c970-aa12-42a0-ac97-631720749000/square512?exp=1789549199&sig=0382d355f4c074e803874f61b6eae68b1ea08fbf5f6edb744f0dda8cce6c9975","9319c175-2593-4f88-ba21-04f2ef7b1c28","pinnedFileId","f9e91e5a-65a0-11f1-91eb-1607ee4eb77e","pinPreview",true,"pinMigrated","screenshotVersion","likeCount","orgId","019aa807-52c2-709c-928b-2029bae9a558","tursoName","tursoHostname","tursoMeasuredAt","pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_96":95,"_104":100},"org",{"_96":95,"_97":98,"_99":100,"_18":-5,"_101":102,"_103":59},"branch",{"_13":85,"_32":86,"_42":41,"_87":43,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":-5,"_93":44,"_94":95},"isOwned",17,"main","projectId","forkedBranchId","forkedBranchVersion","forkedProjectPrivacy","forkedProjectId","forkedProjectOrgId","projectName","userHandle","templates","handle","displayName","Templates","avatar","https://imagedelivery.net/iHX6Ovru0O7AjmyT5yZRoA/129cab32-3bd7-4c3e-f39b-f12900c76100/square512?exp=1789549199&sig=85ec03bbe2ae9af315fa5e89fceebe840b59020b3ec43df39e2ab37ef0d215ad","tier","business","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_42":43,"_32":44,"_37":164,"_46":-5,"_47":25,"_48":49,"_50":49,"_51":52,"_53":54,"_18":55,"_56":57,"_58":59,"_60":-5,"_61":-5,"_62":14,"_63":64,"_65":-5,"_66":-5,"_67":-5,"_68":-5,"_69":70,"_71":70,"_72":73,"_74":73,"_75":73,"_76":70,"_77":70,"_78":165,"_80":166,"_82":167,"_84":25},"tree",[155,156],"files",[155,156],"counts",{"_143":135,"_144":132,"_145":146,"_147":148,"_149":150},"contents",[127,128],"upstreamProject","upstreamBranch","emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},{"_42":140,"_32":28,"_30":31,"_131":-5,"_40":41,"_39":14,"_133":25,"_37":141,"_13":132,"_33":20,"_34":36,"_24":25,"_138":-5,"_27":142},{"_42":129,"_32":130,"_30":57,"_131":-5,"_40":41,"_39":132,"_133":25,"_37":134,"_13":135,"_33":136,"_34":137,"_24":25,"_138":-5,"_27":139},"817f7f3a-cf0c-48d6-a9bd-0448a5f314d8","main.ts","parentId",1,"latest",["D",1781187748705],0,"http","// The simplest Vapi demo: one fetch to api.vapi.ai/call and your phone rings.\n// Setup is two env vars from https://dashboard.vapi.ai — see README.md.\n\nconst FIRST_MESSAGE = \"Hey! This is a demo call from a val. How's your day going?\";\nconst SYSTEM_PROMPT =\n \"You're a friendly voice assistant on a short demo call. Keep every reply to one or two casual sentences.\";\n\n// gpt-4o through Vapi's standard pipeline sounds clean on free Vapi numbers;\n// native realtime models need an imported Twilio number to sound right.\nconst MODEL = \"gpt-4o\";\nconst VOICE = \"shimmer\";\n\nasync function placeCall(number: string) {\n const res = await fetch(\"https://api.vapi.ai/call\", {\n method: \"POST\",\n headers: {\n Authorization: `Bearer ${Deno.env.get(\"VAPI_API_KEY\")}`,\n \"Content-Type\": \"application/json\",\n },\n body: JSON.stringify({\n phoneNumberId: Deno.env.get(\"VAPI_PHONE_NUMBER_ID\"),\n customer: { number }, // E.164, e.g. +15551234567\n assistant: {\n firstMessage: FIRST_MESSAGE,\n model: { provider: \"openai\", model: MODEL, messages: [{ role: \"system\", content: SYSTEM_PROMPT }] },\n voice: { provider: \"openai\", voiceId: VOICE },\n },\n }),\n });\n const data = await res.json();\n if (!res.ok) throw new Error(`Vapi ${res.status}: ${JSON.stringify(data)}`);\n return data;\n}\n\nconst esc = (s: string) => s.replace(/[&<>\"]/g, (c) => ({ \"&\": \"&\", \"<\": \"<\", \">\": \">\", '\"': \""\" }[c] ?? c));\n\nfunction page(body: string) {\n return new Response(\n `\n\n\nAI phone call\n\n

📞 AI phone call

\n${body}\n`,\n { headers: { \"content-type\": \"text/html\" } },\n );\n}\n\nconst FORM = `\n

Enter a number and Vapi rings it — an AI (${MODEL}) chats with whoever picks up.

\n`;\n\nexport default async function (req: Request): Promise {\n if (req.method !== \"POST\") return page(FORM);\n if (!Deno.env.get(\"VAPI_API_KEY\") || !Deno.env.get(\"VAPI_PHONE_NUMBER_ID\")) {\n return page(`

⚠️ Set the VAPI_API_KEY and VAPI_PHONE_NUMBER_ID env vars first — see README.md.

`);\n }\n const number = String((await req.formData()).get(\"number\") ?? \"\").trim();\n try {\n const call = await placeCall(number);\n return page(`

☎️ Calling ${esc(number)}… (call ${esc(String(call.id ?? \"\"))})

Make another call

`);\n } catch (e) {\n return page(`

❌ ${esc(String(e))}

Try again

`);\n }\n}\n","label",[130],"9c6c8751-7fef-4745-be55-e50a089a8cf2",["D",1781191784588],[28],"pulls","branches","forks",4,"envVars",{"_151":153,"_154":153},"connections",{"_151":135,"_152":135},"count","unfilledCount",2,"emptyCount",{"_42":140,"_32":28,"_30":31,"_131":-5,"_40":41,"_39":14,"_133":25,"_37":161,"_13":132,"_33":20,"_34":36,"_24":25,"_138":-5,"_158":162,"_27":163},{"_42":129,"_32":130,"_30":57,"_131":-5,"_40":41,"_39":132,"_133":25,"_37":157,"_13":135,"_33":136,"_34":137,"_24":25,"_138":-5,"_158":159,"_27":160},["D",1781187748705],"children",[],[130],["D",1781191784588],[],[28],["D",1781187727948],{"_96":95,"_104":100},{"_96":95,"_97":98,"_99":100,"_18":-5,"_101":102,"_103":59},{"_13":85,"_32":86,"_42":41,"_87":43,"_88":-5,"_89":-5,"_90":-5,"_91":-5,"_92":-5,"_93":44,"_94":95},"ctx",{"_78":-5,"_124":201,"_202":203,"_204":205,"_206":25,"_207":25,"_208":25,"_209":59,"_210":-5,"_211":-7,"_212":-7,"_213":135,"_214":25,"_215":25,"_216":-5,"_217":25,"_218":25,"_219":25,"_220":-5},"ENV",{"_172":173,"_174":175,"_176":86,"_177":178,"_179":180,"_181":182,"_183":184,"_185":186,"_187":188,"_189":190,"_191":192,"_193":194,"_195":196,"_197":198,"_199":200},"REACT_APP_SENTRY_DSN","https://586020d86f05489db63a554690acf1e9@o1398359.ingest.sentry.io/6724499","RENDER_GIT_COMMIT","e87eb04e707cf64e7e532c8e8ec395f209e17f15","RENDER_GIT_BRANCH","POSTHOG_API_TOKEN","phc_nmoyuAkStEZuUp69rYlg1DZgrIt19Gx0Y4Hwf8tGgJP","POSTHOG_API_HOST","https://wart.val.town","WEB_API_TEMPLATE","https://{val}.web.val.run","APP_URL","https://www.val.town","MODULE_URL","https://esm.town","VANITY_WEB_API_TEMPLATE","https://{label}.val.run/","DENOLS_URL","https://lsp.val.town","NODE_ENV","production","CLOUDFLARE_TURNSTILE_SITE_KEY","0x4AAAAAACtaIZJH7s9rBMZ6","GOOGLE_CLIENT_ID","875989696899-jtsqkhlbdv5jrlsk8631p7ipjg3c6o62.apps.googleusercontent.com","STRIPE_PUBLISHABLE_KEY","pk_live_51N2zvWEpZTTLipIkVEwXrUG9AT0yeOOEYxszarZT1jpsZV58Ly6wlg3SltZpHN26CUalOBmUSY7adQRQiSkCZz2500qSXNkf8Y","API_URL","https://api.val.town",[],"preferencesKeybindings","default","preferencesTheme","light","preferencesFixers","preferencesCopilot","preferencesSelectionAi","preferencesCloseBrackets","preferencesChatPanelState","preferencesDprint","preferencesDenofmt","notificationCount","flagDenols","isBusinessOrgMember","businessOrgHandle","isBusinessOrgAdmin","isHigherTownieTier","navCollapsed","currentOrgId"]

Diff · v3