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Try both.\nexport async function sayOnCall(controlUrl: string, text: string, endCallAfterSpoken = false) {\n const base: Record = { type: \"say\", content: text };\n if (endCallAfterSpoken) base.endCallAfterSpoken = true;\n let r = await control(controlUrl, base);\n if (r.status >= 400) {\n const alt: Record = { type: \"say\", message: text };\n if (endCallAfterSpoken) alt.endCallAfterSpoken = true;\n r = await control(controlUrl, alt);\n }\n return r;\n}\n\nexport async function endCallOnVapi(controlUrl: string) {\n return control(controlUrl, { type: \"end-call\" });\n}\n\nexport async function getCallLive(callId: string) {\n const res = await fetch(`${VAPI_BASE}/call/${callId}`, {\n headers: { Authorization: `Bearer ${apiKey()}` },\n });\n const data = await res.json();\n if (!res.ok) throw new Error(`Vapi GET /call ${res.status}: ${JSON.stringify(data).slice(0, 300)}`);\n return data;\n}\n","createdAt",["D",1781194138598],"branchVersion","branchId","2a0f5ec6-0f27-4f92-8928-4cc63a7c88a2","id","512cd129-ca33-4230-88e5-cbd531eaf822","vapi-remote-mcp",["D",1781193945555],"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=1789563599&sig=ca6789313048c9e93c33a878986ac138b1a4268eeb1e70ca51bd542c784aa01f","9319c175-2593-4f88-ba21-04f2ef7b1c28","pinnedFileId","019eb76e-b243-71fd-8ce7-4920e76677d7","pinPreview",true,"pinMigrated","screenshotVersion","likeCount",0,"orgId","d663a026-6449-42f6-9156-1d4a2d64d38c","tursoName","512cd129ca33423088e5cbd531eaf822","tursoHostname","512cd129ca33423088e5cbd531eaf822-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1789494036282],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm","user",{"_103":102,"_111":107},"org",{"_103":102,"_104":105,"_106":107,"_18":54,"_108":109,"_110":24},"branch",{"_13":88,"_31":89,"_41":40,"_90":42,"_91":92,"_93":94,"_95":48,"_96":97,"_98":99,"_100":43,"_101":102},"isOwned",10,"main","projectId","forkedBranchId","1a083b45-4db0-4390-92b8-ef32e4f387fc","forkedBranchVersion",4,"forkedProjectPrivacy","forkedProjectId","bbf68a35-8f24-4158-8ec0-2bf5b96d1556","forkedProjectOrgId","019aa807-52c2-709c-928b-2029bae9a558","projectName","userHandle","dcm31","handle","displayName","Charlie","avatar","https://imagedelivery.net/iHX6Ovru0O7AjmyT5yZRoA/3e904faa-3764-4629-c475-f561a49b0000/square512?exp=1789563599&sig=6d4d4bc45e131131f67274a1f94308a04e903573252e7f03fdbea160d142eca1","tier","pro","canRestrictVals","profileImageUrl","branchName","","adoptOrgId",{"_41":42,"_31":43,"_36":203,"_45":-5,"_46":24,"_47":48,"_49":48,"_50":51,"_52":53,"_18":54,"_55":56,"_57":58,"_59":-5,"_60":-5,"_61":62,"_63":64,"_65":66,"_67":68,"_69":204,"_71":-5,"_72":73,"_74":73,"_75":76,"_77":76,"_78":76,"_79":73,"_80":73,"_81":205,"_83":206,"_85":207,"_87":24},"tree",[186,187,188,189],"files",[186,187,188,189],"counts",{"_176":62,"_177":158,"_178":158,"_179":180,"_181":182},"contents",[146,147,148,149],"upstreamProject",{"_41":97,"_31":143,"_50":51,"_52":53,"_47":48,"_81":144},"upstreamBranch",{"_41":92,"_36":136,"_137":138,"_31":89,"_90":97,"_13":139,"_91":-5,"_93":-5,"_140":141,"_45":-5,"_87":24,"_47":48,"_101":142,"_63":99,"_100":143},"emptyEnvVars","flags",[],"hasHttpFiles","grants","orgs","customDomains",{},["D",1781187727955],"updatedAt",["D",1781307011317],17,"lockfileKey","1781307011407-esm.town_v_templates_vapi-phone-call@17-main","templates","vapi-phone-call",{"_103":142,"_111":145},"https://imagedelivery.net/iHX6Ovru0O7AjmyT5yZRoA/129cab32-3bd7-4c3e-f39b-f12900c76100/square512?exp=1789563599&sig=a969511699ef574c42d646a130422bcd8ffa020e1e59bd8fb5bde6db2cea72c1",{"_41":170,"_31":171,"_29":172,"_151":-5,"_39":40,"_38":158,"_152":24,"_36":173,"_13":62,"_32":20,"_34":174,"_23":24,"_154":-5,"_26":175},{"_41":163,"_31":164,"_29":165,"_151":-5,"_39":40,"_38":166,"_152":58,"_36":167,"_13":62,"_32":33,"_34":168,"_23":24,"_154":-5,"_26":169},{"_41":156,"_31":157,"_29":56,"_151":-5,"_39":40,"_38":158,"_152":24,"_36":159,"_13":62,"_32":160,"_34":161,"_23":24,"_154":-5,"_26":162},{"_41":150,"_31":27,"_29":30,"_151":-5,"_39":40,"_38":14,"_152":24,"_36":153,"_13":62,"_32":33,"_34":35,"_23":24,"_154":-5,"_26":155},"a8b9ebfe-c448-4888-a05e-565a0db9c219","parentId","latest",["D",1781194138598],"label",[27],"97ca52fa-3f6c-4099-a998-cc991fe68b09","main.ts",1,["D",1781193945555],"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",[157],"d2359713-1485-428e-a725-e99b0a54b130","db.ts","d3f033e6-65af-11f1-9c42-1607ee4eb77e",2,["D",1781194127417],"// SQLite layer: calls + an append-only event feed per call.\n// The feed is what `listen` long-polls; `cursor` on the call row tracks\n// what the operator has already been shown.\n\nimport { sqlite } from \"https://esm.town/v/std/sqlite/main.ts\";\n\nawait sqlite.batch([\n `CREATE TABLE IF NOT EXISTS calls (\n id TEXT PRIMARY KEY,\n control_url TEXT,\n status TEXT DEFAULT 'starting',\n ended_reason TEXT,\n live_partial TEXT,\n cursor INTEGER DEFAULT 0,\n number TEXT,\n created_at TEXT\n )`,\n `CREATE TABLE IF NOT EXISTS events (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n call_id TEXT,\n type TEXT,\n role TEXT,\n content TEXT,\n created_at TEXT\n )`,\n]);\n\nconst now = () => new Date().toISOString();\n\nexport interface CallRow {\n id: string;\n control_url: string;\n status: string;\n ended_reason: string | null;\n live_partial: string | null;\n cursor: number;\n number: string;\n created_at: string;\n}\n\nexport interface EventRow {\n id: number;\n call_id: string;\n type: string;\n role: string;\n content: string;\n created_at: string;\n}\n\nexport async function insertCall(id: string, controlUrl: string, number: string) {\n await sqlite.execute({\n sql: `INSERT INTO calls (id, control_url, status, cursor, number, created_at) VALUES (?, ?, 'starting', 0, ?, ?)`,\n args: [id, controlUrl, number, now()],\n });\n}\n\nexport async function latestCall(): Promise {\n const r = await sqlite.execute(`SELECT * FROM calls ORDER BY created_at DESC LIMIT 1`);\n return (r.rows[0] as unknown as CallRow) ?? null;\n}\n\nexport async function getCall(id: string): Promise {\n const r = await sqlite.execute({ sql: `SELECT * FROM calls WHERE id = ?`, args: [id] });\n return (r.rows[0] as unknown as CallRow) ?? null;\n}\n\nexport async function setCallStatus(id: string, status: string, endedReason?: string | null) {\n await sqlite.execute({\n sql: `UPDATE calls SET status = ?, ended_reason = COALESCE(?, ended_reason) WHERE id = ?`,\n args: [status, endedReason ?? null, id],\n });\n}\n\nexport async function setPartial(id: string, partial: string | null) {\n await sqlite.execute({ sql: `UPDATE calls SET live_partial = ? WHERE id = ?`, args: [partial, id] });\n}\n\nexport async function setCursor(id: string, cursor: number) {\n await sqlite.execute({ sql: `UPDATE calls SET cursor = ? WHERE id = ?`, args: [cursor, id] });\n}\n\nexport async function addEvent(callId: string, type: string, role: string, content: string) {\n await sqlite.execute({\n sql: `INSERT INTO events (call_id, type, role, content, created_at) VALUES (?, ?, ?, ?, ?)`,\n args: [callId, type, role, content, now()],\n });\n}\n\nexport async function eventsAfter(callId: string, afterId: number): Promise {\n const r = await sqlite.execute({\n sql: `SELECT * FROM events WHERE call_id = ? AND id > ? ORDER BY id ASC`,\n args: [callId, afterId],\n });\n return r.rows as unknown as EventRow[];\n}\n\nexport async function recentEvents(callId: string, limit = 100): Promise {\n const r = await sqlite.execute({\n sql: `SELECT * FROM events WHERE call_id = ? ORDER BY id DESC LIMIT ?`,\n args: [callId, limit],\n });\n return (r.rows as unknown as EventRow[]).reverse();\n}\n",[164],"30f9f05b-d0f2-4bb1-acc0-64cabf16f2c5","README.md","019eb76e-b242-72f9-ad38-207faf17e107",["D",1781193945555],"# 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** to get your own copy.\n2. **Get a Vapi API key** — sign up at [dashboard.vapi.ai](https://dashboard.vapi.ai) and copy your private key, then paste it as an env var in your val:\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`](https://www.val.town/x/templates/vapi-phone-call/code/main.ts), type your own number in E.164 format (`+15551234567`), and hit **Call me**. Your phone rings and the AI speaks first. Without the env vars set, the page shows a setup reminder instead of erroring.\n\n## Files\n\n- [`main.ts`](https://www.val.town/x/templates/vapi-phone-call/code/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- Call screening (like Google Voice's) answers before you do, so the AI spends its greeting on the screening robot and you join to silence — turn screening off when testing.\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 [docs.vapi.ai](https://docs.vapi.ai).\n- Only call numbers you have consent to call — automated calls without consent violate TCPA/FCC rules.\n",[171],"pulls","branches","forks","envVars",{"_183":94,"_185":62},"connections",{"_183":62,"_184":62},"count","unfilledCount","emptyCount",{"_41":170,"_31":171,"_29":172,"_151":-5,"_39":40,"_38":158,"_152":24,"_36":200,"_13":62,"_32":20,"_34":174,"_23":24,"_154":-5,"_191":201,"_26":202},{"_41":163,"_31":164,"_29":165,"_151":-5,"_39":40,"_38":166,"_152":58,"_36":197,"_13":62,"_32":33,"_34":168,"_23":24,"_154":-5,"_191":198,"_26":199},{"_41":156,"_31":157,"_29":56,"_151":-5,"_39":40,"_38":158,"_152":24,"_36":194,"_13":62,"_32":160,"_34":161,"_23":24,"_154":-5,"_191":195,"_26":196},{"_41":150,"_31":27,"_29":30,"_151":-5,"_39":40,"_38":14,"_152":24,"_36":190,"_13":62,"_32":33,"_34":35,"_23":24,"_154":-5,"_191":192,"_26":193},["D",1781194138598],"children",[],[27],["D",1781193945555],[],[157],["D",1781194127417],[],[164],["D",1781193945555],[],[171],["D",1781193945555],["D",1789494036282],{"_103":102,"_111":107},{"_103":102,"_104":105,"_106":107,"_18":54,"_108":109,"_110":24},{"_13":88,"_31":89,"_41":40,"_90":42,"_91":92,"_93":94,"_95":48,"_96":97,"_98":99,"_100":43,"_101":102},"ctx",{"_81":-5,"_133":241,"_242":243,"_244":245,"_246":24,"_247":24,"_248":24,"_249":58,"_250":-5,"_251":-7,"_252":-7,"_253":62,"_254":24,"_255":24,"_256":-5,"_257":24,"_258":24,"_259":24,"_260":-5},"ENV",{"_212":213,"_214":215,"_216":89,"_217":218,"_219":220,"_221":222,"_223":224,"_225":226,"_227":228,"_229":230,"_231":232,"_233":234,"_235":236,"_237":238,"_239":240},"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