Orthogonal

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.

Orthogonal publishes 3 APIs on the APIs.io network: Account API, Discovery API, and Run API. Tagged areas include Company, AI Agents, API Discovery, API Marketplace, and Agent Payments.

Orthogonal’s developer surface includes documentation, API reference, getting-started guide, pricing, signup flow, CLI, authentication, and 22 more developer resources.

49.1/100 developing ▬ flat Agent 55/100 agent ready Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
3 APIs 1 MCP Servers
CompanyAI AgentsAPI DiscoveryAPI MarketplaceAgent PaymentsMCPData EnrichmentCryptoStablecoins

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 49.1/100 · developing
Contract Quality 13.7 / 25
Developer Ergonomics 14.3 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 2.1 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 55/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/orthogonal: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

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.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

orthogonal-mcp.yml

MCP SERVER

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Orthogonal Authentication

2 schemes

SECURITY

Orthogonal Domain Security

TLSv1.3 · HSTS

SECURITY

Orthogonal Vulnerability Disclosure

disclosure policy published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Orthogonal Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Build 4

SDKs, sample code, and the tooling you integrate with

Access & Security 5

Authentication, authorization, and security posture

Commercial 3

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: orthogonal
name: Orthogonal
description: 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.
url: https://raw.githubusercontent.com/api-evangelist/orthogonal/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- pantera-capital
- y-combinator
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://orthogonal.sh/logo.jpg
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- AI Agents
- API Discovery
- API Marketplace
- Agent Payments
- MCP
- Data Enrichment
- Crypto
- Stablecoins
apis:
- aid: orthogonal:orthogonal-account-api
  name: Orthogonal Account API
  description: Credit balance, usage, and transaction history.
  humanURL: https://docs.orthogonal.com/api-reference/introduction
  baseURL: https://api.orthogonal.com/v1
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/orthogonal-account-api-openapi.yml
  - type: Documentation
    url: https://docs.orthogonal.com/
  - type: APIReference
    url: https://docs.orthogonal.com/api-reference/introduction
  - type: Quickstart
    url: https://docs.orthogonal.com/quickstart
- aid: orthogonal:orthogonal-discovery-api
  name: Orthogonal Discovery API
  description: Find APIs and endpoints, inspect parameters, and get code snippets.
  humanURL: https://docs.orthogonal.com/api-reference/introduction
  baseURL: https://api.orthogonal.com/v1
  tags:
  - Discovery
  properties:
  - type: OpenAPI
    url: openapi/orthogonal-discovery-api-openapi.yml
  - type: Documentation
    url: https://docs.orthogonal.com/
  - type: APIReference
    url: https://docs.orthogonal.com/api-reference/introduction
  - type: Quickstart
    url: https://docs.orthogonal.com/quickstart
- aid: orthogonal:orthogonal-run-api
  name: Orthogonal Run API
  description: Execute a call against any catalog API through Orthogonal.
  humanURL: https://docs.orthogonal.com/api-reference/introduction
  baseURL: https://api.orthogonal.com/v1
  tags:
  - Run
  properties:
  - type: OpenAPI
    url: openapi/orthogonal-run-api-openapi.yml
  - type: Documentation
    url: https://docs.orthogonal.com/
  - type: APIReference
    url: https://docs.orthogonal.com/api-reference/introduction
  - type: Quickstart
    url: https://docs.orthogonal.com/quickstart
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.orthogonal.com/
- type: Documentation
  url: https://docs.orthogonal.com/
- type: APIReference
  url: https://docs.orthogonal.com/api-reference/introduction
- type: GettingStarted
  url: https://docs.orthogonal.com/quickstart
- type: Pricing
  url: https://www.orthogonal.com/pricing
- type: SignUp
  url: https://orthogonal.com/dashboard
- type: TermsOfService
  url: https://www.orthogonal.com/terms
- type: PrivacyPolicy
  url: https://www.orthogonal.com/privacy
- type: GitHubOrganization
  url: https://github.com/orthogonal-sh
- type: OpenAPI
  url: openapi/orthogonal-openapi.yaml
- type: Overlay
  url: overlays/orthogonal-openapi-overlay.yaml
- type: Packages
  url: packages/orthogonal-packages.yml
- type: SDKs
  url: packages/orthogonal-packages.yml
- type: CLI
  url: cli/orthogonal-cli.yml
- type: MCPServer
  url: mcp/orthogonal-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/orthogonal-llms.txt
- type: WellKnown
  url: well-known/orthogonal-well-known.yml
- type: Authentication
  url: authentication/orthogonal-authentication.yml
- type: OAuthScopes
  url: scopes/orthogonal-scopes.yml
- type: Conventions
  url: conventions/orthogonal-conventions.yml
- type: ErrorCatalog
  url: errors/orthogonal-problem-types.yml
- type: Conformance
  url: conformance/orthogonal-conformance.yml
- type: Lifecycle
  url: lifecycle/orthogonal-lifecycle.yml
- type: Sandbox
  url: sandbox/orthogonal-sandbox.yml
- type: DataModel
  url: data-model/orthogonal-data-model.yml
- type: DomainSecurity
  url: security/orthogonal-domain-security.yml
- type: VulnerabilityDisclosure
  url: security/orthogonal-vulnerability-disclosure.yml
- type: Security
  url: security/orthogonal-vulnerability-disclosure.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 24
  pass: local-v1