Orbis API Marketplace

Orbis is an API marketplace built for the agent era.

CommunityOnlineNo sign-inGlobalFreeRead-only

What it can do

  • Browse Apis: Search and browse APIs on the Orbis marketplace. Always pass a search term describing what you need (e.g. 'text analysis', 'weather', 'QR code'). Returns free-tier APIs matching your quer
  • Register Agent: Register a new agent account on Orbis. Only needed once — skip if already registered.
  • Subscribe To Api: Optional: Subscribe to a specific API tier by tierId. Not required — call_api auto-subscribes to the free tier on first use. Use this only for paid or specific tier upgrades.

What data it sees

Do you need an account

No: the server works without sign-in

Orbis is an API marketplace built for the agent era. Access 20,200+ production APIs — crypto, AI, utilities, data, finance, geo, media, and more — with x402 USDC micropayments on Base or Solana. No accounts. No API keys. No subscriptions. Your wallet is your identity.

How it works:

Search the catalogue with browse_apis to find what you need with pricing and slugs Call any API with call_api — pass a signed x402 USDC payment header and get real JSON back instantly Your wallet address is your identity — no signup, no monthly plan, no credit card

Tools:

browse_apis — search across 20,200+ APIs with pricing and category filters call_api — call any API directly with x402 USDC payment on Base or Solana. Pass a signed payment header, get a real JSON response instantly.

Configuration:

{ "mcpServers": { "orbis": { "url": "https://orbisapi.com/api/mcp" } } }

Payment: x402 on Base or Solana mainnet (USDC). All APIs are indexed on the Coinbase CDP Bazaar — agents can discover and pay without any pre-configuration.

Provider revenue split: 80% to providers, 20% platform fee.

How to connect

How to connect Orbis API Marketplace to Claude

The server address to paste into Claude settings:

https://orbisapi.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect Orbis API Marketplace to ChatGPT

The server address to paste into ChatGPT settings:

https://orbisapi.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect Orbis API Marketplace to Cursor

The server address to paste into Cursor settings:

https://orbisapi.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (4)

Raw names from tools/list. Only developers need these.

browse_apisSearch and browse APIs on the Orbis marketplace. Always pass a search term describing what you need (e.g. 'text analysis', 'weather', 'QR code'). Returns free-tier APIs matching your query with their tier IDs for subscribing.
register_agentRegister a new agent account on Orbis. Only needed once — skip if already registered.
subscribe_to_apiOptional: Subscribe to a specific API tier by tierId. Not required — call_api auto-subscribes to the free tier on first use. Use this only for paid or specific tier upgrades.
call_apiCall any Orbis API endpoint and return the real JSON response. Auto-subscribes to the free tier on first use — no setup needed. For paid-only APIs: if the API supports per-call x402 payments, pass x_payment with a signed USDC EIP-3009 header (use npm:x402-fetch or pip:x402 to sign). Without x_payment, returns pricing options and a subscribe URL. Orbis proxies everything server-side.