# Orthogonal

**Canonical:** https://apis.io/providers/orthogonal/  
**Website:** https://www.orthogonal.com/  
**APIs profiled:** 4

Orthogonal is a unified API and payment layer for AI agents, backed by Pantera Capital and Y Combinator. An agent describes what it needs in natural language and Orthogonal returns the right service from a catalog of 40+ third-party APIs (web search, data enrichment, scraping, email finding/verification, identity), then proxies the call and meters a per-call price. Access is available through a REST API (api.orthogonal.com), a TypeScript SDK (@orth/sdk), a Python SDK (orth), a CLI (@orth/cli), and an official hosted MCP server (mcp.orthogonal.com) for Claude, Cursor, and other agents. Billing is prepaid credits or pay-per-call stablecoin micropayments over x402 (USDC on Base) and MPP (USDC.e on Tempo). Orthogonal also publishes an open library of 88 installable Agent Skills.

## Kin Score — 50.9 / 100 (developing)

Scored 2026-08-17 under rubric 0.11.0. Trend: rising (+8.5 from 42.4).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 14.6 |
| Governance | 11.5 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 82.6 |
| Commercial Clarity | 73.7 |

Regulatory layer — **Payments**: 64.1 (matched via tags).

## Agent readiness — 54.5 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| MCP Server | yes |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | yes |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | conformant |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (4)

- **Orthogonal Account API** — Credit balance, usage, and transaction history.
- **Orthogonal Discovery API** — Find APIs and endpoints, inspect parameters, and get code snippets.
- **Orthogonal Run API** — Execute a call against any catalog API through Orthogonal.
- **Orthogonal API Marketplace** — The resold catalog itself — 795 payable operations across 58 third-party provider families (scraping, enrichment, search, jobs, weather, agent infrastructure), each namespaced /...

## MCP servers (1)

- **orthogonal-mcp.yml**

## Security (3)

- **Orthogonal Authentication** — 2 schemes
- **Orthogonal Domain Security** — TLSv1.3 · HSTS
- **Orthogonal Vulnerability Disclosure** — Hackerone · security.txt · contact published

## Plans (1)

- **Orthogonal Plans Pricing**

## Tags

Company, AI Agents, API Discovery, API Marketplace, Agent Payments, MCP, Data Enrichment, Crypto, Stablecoins

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/orthogonal/). Scores are computed from the provider's own public artifacts under a published rubric.