Orthogonal provides agentic payment infrastructure for APIs. The platform lets AI agents and developers discover, access, and pay for hundreds of APIs through a unified system, while allowing API providers to list their services once and earn per-request revenue without managing subscriptions or billing relationships. It aims to be the payments layer that enables autonomous agents to transact for the tools they use. Orthogonal was founded in 2025 and is a Y Combinator Winter 2026 company based in the San Francisco Bay Area.
Orthogonal
ActiveAgentic Payments for APIs
Total raised
$500K
1 round
Stage
Seed
Jan 2026
Team
1-10
since 2026
Pricing
—
Founded
2026
San Francisco, United States
Agent-ready
—
Agentic payment infrastructure built specifically for APIs
Unified system for AI agents and developers to discover APIs
Single access and payment layer across hundreds of APIs
Per-request revenue model for API providers
List-once setup so providers avoid managing individual billing relationships
Removes the need for providers to manage subscriptions
Payments layer designed to let autonomous agents transact for tools
12/100
Early
MCP server
Public API
Webhooks
OAuth 2.0
SDKs
No public agent surfaces detected yet.
Jan 2026 Seed $500K ● Y Combinator
Capital network
$500K raised ·1 backer·10 network links
- Backers1
- Shared portfoliocompanies these backers also fund
- Extended networkfunds that co-invest alongside them
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- What is Orthogonal?
- It is agentic payment infrastructure for APIs that lets agents and developers discover, access, and pay for APIs through one unified system.
- How do API providers benefit?
- Providers list their services once and earn per-request revenue without managing subscriptions or billing relationships.
- Why is this relevant to AI agents?
- It provides a payments layer that enables autonomous agents to transact for the tools and APIs they use.
- What does it replace?
- It replaces the need to set up and manage individual subscriptions and billing across many separate APIs.
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