AI Agents Freemium

Inkbox

Persistent email, phone, iMessage, tunnels, and identity for AI agents

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PricingFreemium
Starting price$30/mo
Free planUnknown
Free trialYes
APIYes
Open sourceNo
DeploymentCloud
Last verifiedJuly 29, 2026
Overview

Tool overview

Inkbox is listed under AI Agents AI tools.

Summary

What is Inkbox?

Inkbox gives AI agents persistent communication identities. Each agent can receive an email inbox, public tunnel URL, contacts, notes, scoped credentials, and optional phone or iMessage capabilities through APIs, SDKs, MCP, plugins, and self-provisioning workflows.

Best fit

Best for

Developers operating AI agents that communicate with real people

Audience

Who is it for?

AI agent developersCustomer-support automation teamsSales automation teamsVoice and communications engineers
Recommendation

Decision note

Confirm identity limits, phone and iMessage allowances, custom domains, storage, overage caps, 10DLC requirements, API limits, security, support, and current enterprise terms.

Capabilities

Key features

Persistent email inboxes for individual agents

Phone calls, SMS, MMS, and iMessage options

Public tunnel URLs for inbound web traffic

Shared contacts, notes, and scoped credential vault

REST API, MCP, webhooks, and signing keys

TypeScript, Python, CLI, and agent-harness plugins

Workflows

Use cases

Giving support agents durable identities

Running compliant outbound sales follow-up

Receiving phone and web traffic for agents

Sharing credentials across scoped agent workflows

Strengths

Pros

  • Permanent free plan for exploration
  • Clear developer and startup pricing
  • Broad multichannel agent communication stack
Considerations

Cons

  • Telephony and messaging overages add cost
  • Communications require consent and policy controls
  • Agent identity misuse can create legal risk
Considerations

Limitations

Inkbox can enable agents to send unwanted or incorrect messages, mishandle credentials, or violate telemarketing and recording rules. Teams must scope permissions, obtain consent, secure secrets, control recipients, rate-limit activity, and review consequential communications.

Cost

Pricing details

Pricing modelFreemium
Starting price$30/mo
Free planUnknown
Free trialYes
Pricing context

Billing options

Free planMonthly subscriptionUsage-based messaging and callingCustom enterprise agreement
Pricing context

Pricing note

Inkbox Free costs $0 per month for three identities. Developer costs $30 per month for ten identities and included phone usage. Startup starts at $180–$200 per month, while Enterprise is custom. SMS, calls, campaigns, and other overages are billed separately.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

IMAP and SMTP

TypeScript SDK

Python SDK

MCP clients

Claude Code

Codex

OpenClaw

Specs

Technical details

PlatformsWeb, API
Multilingual supportUnknown
Login requiredYes
Open sourceNo
DeploymentCloud
CompanyInkbox
Models / versionsAgent Identities Mailboxes Phone iMessage Tunnels Vault
Editions / plansFree, Basic, Professional, Organization, and Custom plans
Data confidenceHigh
Last verifiedJuly 29, 2026
Documentation → Release notes → Data source →
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Answers

Frequently asked questions

Inkbox gives AI agents persistent communication identities. Each agent can receive an email inbox, public tunnel URL, contacts, notes, scoped credentials, and optional phone or iMessage capabilities through APIs, SDKs, MCP, plugins, and self-provisioning workflows.
Developers operating AI agents that communicate with real people
The listed pricing model for Inkbox is freemium. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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