AgentCall
AgentCall gives AI agents real phone numbers for voice calls, SMS, OTP extraction, and cross-call memory via REST API or MCP.
AgentCall solves the boring part of giving an agent a phone identity — number provisioning, SMS, OTPs, and caller memory arrive as one API instead of a week of Twilio plumbing. The $19.99/mo Pro tier has no per-seat fees and includes cross-call memory that Vapi, Retell, and Bland don't ship. Budget for usage though: $0.035/min for plain voice is cheap, but managed inbound AI voice runs $0.40/min.
Verified 11h ago · liveness 74/100 · cite: rightaichoice.com/tools/agentcall
- Developers building AI voice agents that need a real US or Canada phone number
- Teams adding SMS OTP verification and staging QA to an agent workflow
- Solo builders prototyping voice and SMS agents through an MCP client
- Businesses running an AI receptionist that recalls prior caller conversations
- Non-technical users wanting a plug-and-play contact center dashboard
- Teams needing advanced IVR trees, call queues, or skill-based routing
- Projects requiring on-premise deployment or full data sovereignty
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Skip AgentCall if you need IVR trees, call queues, or skill-based routing, or if your monthly call volume makes $0.40/min managed inbound AI voice more expensive than standing up your own agent on a general telephony API.
Managed inbound and outbound AI voice runs $0.40/min on top of your subscription, so a line handling a few hundred minutes a week can cost far more than the $19.99/mo Pro plan itself.
At $19.99/mo Pro with no per-seat fees, AgentCall is priced for solo builders and small developer teams, not enterprise telecom budgets. It undercuts a general telephony API plus a self-built memory layer on engineering time, but usage at $0.035/min for plain voice and $0.40/min for managed AI voice can eclipse the subscription. AgentPhone is noted as cheaper per AI voice minute and adds iMessage; Twilio is cheaper for raw telephony if you assemble the AI yourself.
In short
AgentCall — AgentCall gives AI agents real phone numbers for voice calls, SMS, OTP extraction, and cross-call memory via REST API or MCP. Best for Developers building AI voice agents that need a real US or Canada phone number, Teams adding SMS OTP verification and staging QA to an agent workflow, Solo builders prototyping voice and SMS agents through an MCP client. Free to start; paid plans from $19.99/mo.
What's new in AgentCall
Checked 7 days agoAcross the latest 5 updates: 2 feature updates, 2 community discussions and 1 news mention.
Why Twilio Doesn't Work for AI Agents: 10DLC Wait
AgentCall argues Twilio blocks agent SMS on US numbers until 10DLC brand and campaign registration clears; AgentCall registers senders so they text same day.
How to Give Claude Desktop or Cursor a Real Phone Number
AgentCall MCP server added to Claude Desktop, Cursor or Windsurf in about five minutes; the agent gets a real US number that texts and answers calls.
How to Build an AI Receptionist for a Small Business (No Code)
AgentCall publishes a no-code walkthrough for an AI receptionist: pick a number, paste a prompt, add a transfer number.
Text Your Own AI Agent on a Real Phone Number
Relay mode points a US or Canada number at your own agent; AgentCall signs inbound texts to a webhook and delivers the agent's reply.
AgentCall vs AgentPhone: Phone API for AI Agents
Vendor comparison: AgentPhone is cheaper per voice minute and has iMessage; AgentCall counters with 62 MCP tools, cross-call memory and tool-calling.
What people actually say about AgentCall — is it worth it?
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
39 mentions across 4 sources (Hacker News, YouTube, Product Hunt, GitHub) · researched Aug 7, 2026.
Average across the 4 sources that answered — each source counts once, not each post.
- +All-in-one API for phone numbers, SMS, OTP, and voice simplifies agent setup.
- +Meeting feature lets coding agents join Google Meet, Teams, and Zoom calls.
- +Pre-call context webhook lets live agents provide custom context before each call.
- +MCP server integrations with Claude, Cursor, Windsurf, and OpenClaw are promising.
- +Usage-based pricing with free tier makes testing affordable for developers.
- −Slow response delays (10-20 seconds) make voice conversations feel unnatural.
- −Meeting video reliability has bugs like black camera and resource loading failures.
- −No integration yet for ElevenLabs or other preferred voice providers.
- −Cold-calling use cases are seen as intrusive and legally risky.
- −Community trust is low; many viewers think AI calls are scams.
- • No public per-minute or per-SMS rates, making cost estimation difficult.
- • Potential fees for number porting or extra numbers not clearly outlined.
- • Usage costs can escalate quickly with heavy voice/SMS usage.
Viability Score
How well maintained and how widely used is AgentCall? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: October 2026
How we score →Key Features
- Provision dedicated US/CA phone numbers via MCP or REST API
- Make and receive programmable full-duplex voice calls at $0.035/min
- Place outbound AI voice calls from a system prompt with transcript
- Answer inbound calls with inbound AI voice and emailed plain-English summary
- Send and receive two-way AI SMS that answers inbound texts autonomously
- Persistent cross-call caller memory across voice and SMS threads
- Pre-call context webhook loads today's brief before the AI speaks
- Relay mode pushes inbound texts to your own agent via signed webhook
- Action Bridge calls your own tools to text back real quotes
- Schedule outbound texts for reminders, payment follow-ups, and check-ins
- OTP extraction for staging QA and CI/CD app verification testing
- Verification-code webhooks deliver codes instantly to your endpoint
- AI voice in 31 languages with auto-detect or pinned language
- Ten AI voices including four premium high-fidelity voices
- MCP server auto-discovering 62 tools and 5 prompts in Claude, Cursor, or Windsurf
About AgentCall
AgentCall is phone infrastructure built for AI agents rather than humans at a desk. You provision a US or Canada number by asking an MCP-enabled agent or hitting the REST API, then let the agent make and receive AI voice calls, send and receive SMS, and pull verification codes — all on one dedicated line. Persistent caller memory is included on every plan, so the agent recalls a contact across voice and text threads instead of restarting cold. The agent-operator design shows up in the details. Inbound calls can fire a pre-call context webhook so the AI answers with today's brief rather than a static prompt, and outbound calls run from a system prompt in 31 languages (auto-detect or pinned) with a full transcript plus a plain-English summary emailed afterward. Two-way AI SMS lets a number answer inbound texts autonomously, and the Action Bridge calls your own tools to text back a real quote instead of guessing. Your AI can text first too, immediately or on a schedule, with STOP honored first. Setup routes through MCP: Claude Desktop, Cursor, and Windsurf auto-discover 62 tools and 5 prompts from one URL plus an API key. Developers also get a per-agent SMS inbox, verification-code webhooks, OTP extraction for staging QA and CI/CD, relay mode for pointing a number at an agent you already run (AgentCall runs no AI of its own in that path), and ten voices — four of them premium — for AI voice calls billed at $0.035 per minute. Compared with general telephony APIs like Twilio, AgentCall is deliberately narrower: fewer routing and infrastructure knobs, but caller memory, OTP handling, and streaming AI voice come assembled. Pick it when your project is agent-first and you want the phone layer to disappear into the agent.
Behind the Verdict
The pitch here is narrower than it first sounds, and that's the point. AgentCall is not trying to be a contact center platform — it's trying to make a phone number a first-class object your agent can own. If you've ever wired Twilio number provisioning into a Claude or Cursor workflow, you know the friction: buy a number, configure webhooks, build SMS handling, bolt on speech, then realize your agent forgets every caller between sessions. AgentCall collapses that into one MCP server with 62 tools and 5 prompts. Where it earns its keep: agent-first projects that need a real number fast. The MCP path is genuinely quick — one URL plus an API key, and Claude Desktop or Cursor can provision a number in about five minutes. Relay mode is the sleeper feature. If you already run an agent, you point a US or Canada number at it, AgentCall signs inbound texts to your webhook, and your agent replies on its own schedule — so a slow turn never times out on the caller. Caller-level memory is the differentiator worth paying for. Vapi, Retell, and Bland don't ship it; AgentCall includes it on Free, Managed Pro, and BYOK Pro. For an AI receptionist that should know a caller called last week about a quote, that's the whole game. Two configurations for AI voice matter to your bill. Managed AI voice is $0.40/min outbound and $0.40/min for inbound AI voice; BYOK drops outbound AI voice to $0.10/min if you bring your own model keys. Plain programmable voice calls are $0.035/min, and SMS runs $0.015 per message sent and $0.008 received. Numbers cost from $2/mo each on Pro, which includes unlimited numbers across local, toll-free, and mobile types. When to pass: if you need IVR trees, call queues, skill-based routing, or on-premise deployment, this isn't the tool — you're shopping in
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Real-world workflow fit
Concrete scenarios for the personas AgentCall actually fits — and what changes day-one when you adopt it.
You paste the hosted MCP URL and an API key into Claude Desktop, ask it to provision a US number, and set that number to inbound AI mode with a system prompt describing your business.
Outcome: You have a callable, textable phone identity in under a minute, with transcripts and plain-English summaries emailed after each call and caller memory retained on the next conversation.
On Pro, your CI pipeline provisions a number, triggers your app's SMS verification step, and receives the code through a verification-code webhook rather than a human phone.
Outcome: SMS verification is tested end-to-end on every build, with OTP extraction handled programmatically instead of by a person watching a handset.
Your number answers inbound calls with a context webhook pulling today's brief from your own bridge, then texts back a real quote by calling your tools through the Action Bridge.
Outcome: Callers get accurate, current answers instead of a static script, and the follow-up text carries the same context because memory spans voice and SMS.
Use Cases
- Run an AI receptionist that answers inbound calls, loads today's brief from a context webhook, and recalls prior callers.
- Qualify leads with outbound AI calls in 31 languages, then follow up on the same thread with SMS.
- Test your app's SMS verification end-to-end in staging QA and CI/CD by provisioning a number and extracting the OTP automatically.
- Let customers text a number and get autonomous AI answers, with the Action Bridge pulling real quotes from your own tools.
- Send appointment reminders, payment follow-ups, and check-ins on a schedule your agent sets, on the same thread as the call.
- Give your own agent a real phone number in relay mode so you can text it like a chat app without turn timeouts.
- Run verification-code webhooks so login codes reach your endpoint instantly rather than being polled.
Limitations
- AgentCall's premium voice library draws on ElevenLabs voices (12 curated voices in 31 languages), while in relay mode the tool runs no AI of its own — it forwards inbound texts to your agent over a signed webhook.
- Live OTP extraction requires a Pro plan.
- New trials are limited to 72 hours with five managed inbound AI minutes and five verified-destination SMS send attempts, with card verification required before allocation.
- Managed inbound AI voice is billed at $0.40/min, and premium voice at $0.59/min on Pro, so high-volume call operations should model usage cost before committing.
as of 2026-10-01
Verification history
We have re-verified AgentCall 10 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-checked, vendor evidence unchanged
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-checked, vendor evidence unchanged
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- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
Showing the 6 most recent of 10 verification passes.
Free to cite with attribution — this page re-verifies continuously.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Plans compared
For each published AgentCall tier: who it actually fits, and what it adds vs. the previous tier. Cross-reference the cost calculator above for projected annual outlay.
Free
$0
Ideal for
A developer who wants to confirm the MCP flow works with Claude, Cursor, or Windsurf before committing a card to a paid plan.
What this tier adds
Starting tier: a 72-hour live trial with one US local number, five managed inbound AI minutes, and five SMS send attempts to verified destinations.
Pro
$19.99/mo
Ideal for
Solo builders and small teams running a real AI receptionist, OTP extraction in CI/CD, or two-way AI SMS that needs to remember callers between conversations.
What this tier adds
Adds persistent caller memory, unlimited numbers from $2/mo each, live OTP extraction, and full inbound/outbound AI voice across 31 languages, with no per-seat fees.
Where the pricing makes sense
The company stage and team size where AgentCall's pricing actually pencils out — and where peers do it cheaper.
At $19.99/mo Pro with no per-seat fees, AgentCall is priced for solo builders and small developer teams, not enterprise telecom budgets. It undercuts a general telephony API plus a self-built memory layer on engineering time, but usage at $0.035/min for plain voice and $0.40/min for managed AI voice can eclipse the subscription. AgentPhone is noted as cheaper per AI voice minute and adds iMessage; Twilio is cheaper for raw telephony if you assemble the AI yourself.
Setup time & first value
How long it actually takes to get something useful out of AgentCall — broken out by persona, not the marketing-page minute.
Solo developer with an MCP client: under a minute, since the hosted MCP server auto-discovers 62 tools and 5 prompts from one URL and an API key. Team adding SMS OTP to staging QA: roughly an hour, dominated by wiring the verification-code webhook and your CI job. Business running an AI receptionist: half a day, mostly spent writing the system prompt and standing up the pre-call context bridge.
Switching to or from AgentCall
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- →From Twilio: keep your existing telephony knowledge but replace the assembled AI voice, memory, and OTP layers with AgentCall's built-in MCP server and cross-call memory.
- →From a raw SIP or VoIP provider: point your agent at AgentCall's REST API for number provisioning, then move inbound handling to AI mode.
- →From a self-hosted agent with no phone line: use relay mode to give your existing agent a US or Canada number without rewriting its reply logic.
- ↗To Twilio: export your number list and message history, then rebuild inbound AI, memory, and OTP handling against Twilio's Voice and Messaging APIs.
- ↗To AgentPhone: the vendor's own comparison notes AgentPhone is cheaper per AI voice minute and supports iMessage, so models on SMS-heavy workflows face the least rework.
- ↗To a general CPaaS with your own model: keep your prompts and transcripts, and replace AgentCall's hosted AI voice with a self-managed streaming pipeline.
Integrations
Resources & Guides
Tutorials & Learning
YouTube returned 6 videos for “AgentCall”, and we withheld 6: 6 could not be judged, because “AgentCall” is a single word that other videos use for other things. We are showing none, because we could not prove any of them are about AgentCall.
Official links
Tools that pair well with AgentCall
Common stack mates teams adopt alongside AgentCall, with the specific reason each pairing earns its keep.
Retell AI
Retell AI is a pay-as-you-go platform for AI voice agents that answer, qualify, and route real phone calls from $0.07/min.
Kea
Kea is voice AI phone ordering for restaurants — answers unlimited concurrent calls, takes modifiers, and sends tickets to your POS and
Synthflow AI
Synthflow AI runs enterprise voice AI agents on its own telephony network for automated phone calls at scale.
Featured Head-to-Head Comparisons
Agentcall vs Spider Cloud
For AI agents that need phone capabilities—voice calls, SMS, OTP, and memory—AgentCall is the clear pick. For AI agents that need real-time web data, crawling, and structured extraction for RAG pipelines, Spider Cloud wins with its high-performance Rust engine, AI-powered extraction, and broad integrations. Choose based on your agent's primary channel: phone or web.
Agentcall vs Temporal Ai
Choose AgentCall if you need an AI agent to make phone calls, send SMS, or verify OTPs programmatically — it's purpose-built for telephony. Choose Temporal AI if you're orchestrating multi-step AI workflows that must survive failures and require retries, rollbacks, or human-in-the-loop pauses. For combined needs, use AgentCall for telephony and Temporal for the backend orchestration.
Agentcall vs Voyage Ai
AgentCall and Voyage AI serve entirely different AI stacks. Choose AgentCall if your use case demands AI agents that can make/receive calls, send SMS, or handle OTP — it's developer-friendly with a freemium entry point. Choose Voyage AI if you're building RAG pipelines and need top-tier embedding models fine-tuned for finance, legal, or code, accepting enterprise pricing and sales engagement. They complement rather than compete.
Alternatives to AgentCall
View all
Retell AI
Retell AI is a pay-as-you-go platform for AI voice agents that answer, qualify, and route real phone calls from $0.07/min.
Kea
Kea is voice AI phone ordering for restaurants — answers unlimited concurrent calls, takes modifiers, and sends tickets to your POS and
Synthflow AI
Synthflow AI runs enterprise voice AI agents on its own telephony network for automated phone calls at scale.
Frequently Asked Questions
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