CombinatorThe Unified API
for AI Agents.
One key. Best-in-class APIs for GTM agents
Company data, contacts, outreach. Pay only for what you call.
import Orthogonal from "@orth/sdk";
const orth = new Orthogonal({
apiKey: process.env.ORTHOGONAL_API_KEY,
});
const result = await orth.run({
api: "contactout",
path: "/v1/linkedin/enrich",
query: { profile: "linkedin.com/in/jane-doe" },
});Built for the agents people are building
Pick a vertical.
We have the APIs.
GTM Agents
Find buyers. Enrich them. Reach out at scale.
Example call · apollo
const r = await orth.run({
api: "apollo",
path: "/api/v1/mixed_people/api_search",
body: {
person_titles: ["VP Sales"],
q_keywords: "stripe",
per_page: 25,
},
});The platform
Everything your agent needs.
Nothing it doesn't.
One key. Every provider.
Best-in-class APIs behind a single endpoint. No procurement, no provider-by-provider onboarding.
Pay per request
$10 free credits to start. No subscriptions. Pay only for the calls your agent makes.
Auth & keys, handled
Pooled API keys handled per provider. Skip the per-vendor onboarding, OAuth dance, and credential management.
Verified providers
Every verified API is tested, monitored, and uptime-tracked by our team.
Built for agents
Structured responses with usage and pricing on every call. MCP-native for Claude, Cursor, and more.
Framework-agnostic
TypeScript SDK, a @orth/cli for the terminal, an MCP server for Claude and Cursor, or call the REST API from any language.
Trusted providers
One key. Every provider.
The premium tools your agent reaches for, behind a single billed endpoint.
How it works
From zero to first call in 60 seconds.
One key replaces dozens. Same shape on every provider. Pay only for what you use.
Sign up
$10 free credits, no card. One key works for every provider.
Compose
Same shape across every API. No SDK rewiring per provider.
Pay per call
Credits deduct per request. Every response returns its price.
Testimonials
Loved by builders shipping agents.
In a world where everything is about agents and APIs are king, Orthogonal provides unbeatable value for teams who want to remain on the bleeding edge of what's possible.
Completely see the potential here…just plug Orthogonal in with a Claude bot + one API key and it's off to the races.
Orthogonal is one of the highest-leverage tools in our GTM stack. It gives us a clean API for the account and prospect data our team needs, instead of forcing us to stitch together tools, UIs, and Clay tables. It has made our agent-native GTM workflows faster, cleaner, and meaningfully more effective.
Orthogonal is an AI-native builder's dream. I get search, scrape, and enrichment data from dozens of vendors through one key and one balance instead of managing tons of individual APIs, contracts, and dashboards.
Ship the agent. We'll bring the APIs.
$10 free credits. No card. Pay only for what your agent calls.