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Add OpenSEO with Stripe Projects

Create an OpenSEO account and API key from the terminal with Stripe Projects.

Stripe Projects sets up developer services from the Stripe CLI and writes their credentials to your .env. OpenSEO is available as openseo/api.

stripe projects add openseo/api

The command:

  • creates an OpenSEO account for your Stripe account's email, or links your existing OpenSEO account with that email. Stripe must have verified the email first.
  • creates an API key in that account
  • writes OPENSEO_API_KEY and OPENSEO_API_MCP_URL to your .env

Run stripe projects env to see the exact variable names in your project. Adding OpenSEO accepts OpenSEO's Terms and Privacy Policy.

Connect your agent

Use the key with the hosted MCP server, https://app.openseo.so/mcp. For Claude Code:

claude mcp add --transport http openseo https://app.openseo.so/mcp --header "Authorization: Bearer $OPENSEO_API_KEY"

For Codex CLI:

codex mcp add openseo --url https://app.openseo.so/mcp --bearer-token-env-var OPENSEO_API_KEY

Other clients are covered in Connect with an API key.

Sign in to the dashboard

stripe projects open openseo

This opens a page that shows which account you are signing in to. Click Continue to sign in. The link works once and expires after ten minutes. Accounts created through Stripe Projects have no password; you can also sign in with Google using the same email, or set a password with Forgot password.

Credits and plans

New accounts start with the same free credits as any OpenSEO sign-up. Plans and credit top-ups are billed by OpenSEO on the billing page, not through Stripe Projects. See pricing.

Rotate or remove the key

stripe projects rotate openseo-api
stripe projects remove openseo-api

Rotating replaces the key, and the old one stops working straight away. Removing revokes the key but keeps your OpenSEO account, projects and credits. The key is also listed under Settings → API keys in OpenSEO. To cut Stripe off entirely, disconnect Stripe Projects under Settings → Connected agents: Stripe can no longer create keys, and the keys it created stop working.