Secure Access Flows
Without Compromise
Sestra is a privacy-first access middleware that turns verified requirements into short-lived API access without storing identity, handling funds, or widening compliance.
Background

Why Sestra Exists

Access Control Hasn’t Kept Up With Modern APIs.

Modern APIs are increasingly consumed by automated systems — services, agents, and backend processes rather than human users. Yet access control and monetization models still depend on accounts, identities, and long-lived credentials.

This mismatch introduces friction, unnecessary data exposure, and operational overhead for teams that simply want to control access based on verified conditions.

Sestra was created to close this gap.

1. Account-based access in machine-driven environments

Systems, agents, and backend jobs are forced into human-centric models built around users, logins, and credentials.

2. Identity and data retention risk

Storing accounts, identifiers, and usage history expands your risk surface and long-term data liability.

3. Heavy billing and compliance complexity

Connecting access, billing, and compliance often means building and maintaining infrastructure far outside your core product.

4. Subscription models that don’t match usage

Modern APIs are consumed programmatically and variably, but pricing still assumes fixed plans and long-lived access.

How it works illustration

From Verification
to Access In Seconds.

Sestra turns verified conditions into short-lived access sessions through a clear, auditable flow.

Policy-Driven Authorization

All access rules in Sestra are defined through policies, allowing access behavior to change without code rewrites.

Session-Based Access Control

Sestra replaces long-lived API keys and user accounts with short-lived access sessions that expire automatically.

Event-Based Integration

Sestra communicates with backends through events rather than blocking calls, including access requests and session lifecycle updates.

Agent-First Architecture

Sestra treats autonomous agents and backend services as first-class clients, enabling access flows without accounts or credentials.

Condition-Verified Access

SOLUTION LAYER

Access Control, Designed for Programmatic Use.

Sestra operates between your API and external verification mechanisms, evaluating whether defined conditions are met and issuing short-lived access sessions — no more, no less.

Condition-Verified Access

Condition-Verified Access

Grant access only when predefined requirements are satisfied — without becoming part of the transaction flow or holding funds.

WHO IT'S FOR

Built for Teams Operating APIs at Scale.

For API Providers

For API Providers

  • Usage-based endpoint monetization
  • No billing infrastructure to maintain
  • No user data to manage
  • Enterprise-ready without expanding risk surface
For Autonomous Systems

For Autonomous Systems

  • Programmatic access without human workflows
  • No accounts or credential rotation
  • Designed for service-to-service and agent-driven use
For Enterprises

For Enterprises

  • Minimal data liability
  • Reduced compliance scope
  • Clear operational boundaries
  • Audit-friendly architecture
Background

Charts & Trading

Explore Trading Platforms

Access multiple DEX platforms for comprehensive token analysis and trading

FAQ

Most Questions On Sestra

We’re building the future of machine-paid APIs. Here are the most common questions about how Sestra ensures secure payments, seamless integration, and uncompromising privacy.

Sestra solves access control for APIs and automated systems by granting temporary access only when predefined conditions are verifiedwithout requiring user accounts, API keys, or long-lived credentials.