One

One is a command-line interface and infrastructure tool designed to connect AI agents with hundreds of platforms and tens of thousands of actions. It serves as a trust and execution layer that manages authentication, access control, token refreshing, and audit logs. The platform reduces prompt bloat by exposing a standardized set of commands so agents can interact with external applications securely and reliably in production environments.

• Connect AI agents to over 500 platforms and thousands of actions through a single CLI
• Search for actions and explore app capabilities in plain English
• Run single actions or chain multiple steps into workflows across different applications
• Managed authentication supporting OAuth 2.0, OAuth 1.0a, API keys, and Basic Auth with automatic token refreshing
• Context efficiency features that keep thousands of tools accessible through four core commands
• Enterprise access controls including SSO, SCIM auto-provisioning, and granular access policies
• Tenant overview with credential isolation for managing distinct customer environments

Pros

• Reduces token overhead for prompts by abstracting large numbers of tool schemas into a simple interface
• Handles complex authentication lifecycles and silent token refreshing automatically
• Allows developers to search for tools and inspect required parameters using plain English queries
• Supports multi-step workflow execution and data passing across different third-party apps

Cons

• Requires developers to use the command-line interface or integration runtime to manage connections
• Lower pricing tiers limit log retention periods to 14 or 30 days
• Organization and project invite limits apply depending on the chosen pricing plan
• Rate limits are capped per minute based on the selected tier

This product fits developers and teams building production-ready AI agents that need secure, authenticated access to external software platforms without inflating prompt token counts. It suits organizations running automated workflows that require strict access policies and audit logging across multiple services. It is a poor fit for users looking for a purely graphical, no-code automation builder without developer tooling or command-line requirements.

The platform offers a Free tier at $0 for individuals, a Starter plan at $29 per month, a Pro plan at $199 per month, and a custom Enterprise tier. Every plan includes unlimited connections, MCP and CLI access, and 1M API calls. Overage charges are $0.25 per 1K calls on the Starter plan and $0.15 per 1K calls on the Pro plan. Rate limits range from 100 per minute on the Free tier up to 1,000 per minute on the Pro tier, with custom limits for Enterprise. Additional agent usage is charged at $40 per agent across standard tiers.

Unlike direct API integrations that require writing custom wiring for every service, One provides a single command-line interface that abstracts hundreds of platforms into a unified set of commands. Instead of stuffing thousands of tool schemas directly into an AI model's prompt, the system keeps context efficient by loading schemas dynamically on demand. It also centralizes authentication lifecycles, tenant isolation, and audit logging into an infrastructure layer rather than leaving token handling to individual agent implementations.

HubSpot, Salesforce, Pipedrive, Attio, Close, Gmail, GitHub, Zendesk, Jira, Stripe, Linear, Slack, QuickBooks, Okta, Azure AD, 1Password, Chat, 7shifts, Ably, Abstract Avatars, Abstract Company Enrichment, Abstract Email Reputation, Abstract IBAN Validation, Abstract IP Intelligence, Abstract Phone Intelligence, and Abstract Public Holidays.

One is worth trying for developers and organizations running production AI agents that need to connect safely to multiple external applications without handling manual authentication boilerplate. The free tier allows individuals to explore agent integrations with basic logging and API call limits. Teams requiring higher rate limits, extended log retention, and collaboration features can scale up through the paid starter, pro, or custom enterprise tiers.