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Docs →OAuth 2.0
OAuth 2.0 — self-onboarding
Point your MCP client at the server URL and approve access in the browser. The server supports OAuth Dynamic Client Registration (RFC 7591), so the client registers itself automatically — no developer-portal app, client_id, or client_secret to create.
Zapier NLA OAuth client
For user-facing NLA integrations, submit Zapier's access form to get a client_id, client_secret, and provider name, then use Zapier's standard OAuth v2 flow against https://nla.zapier.com/oauth/authorize/ and https://nla.zapier.com/oauth/token/, as documented in the NLA OpenAPI description at apis.guru's Zapier NLA spec.
API key
Docs →Zapier MCP connection token Create or open your server at mcp.zapier.com, open the Connect tab, and click Generate token as described in MCP Authentication. Copy the token immediately; it is shown only once.
Zapier MCP API key Create or open your server at mcp.zapier.com, open the Connect tab, choose TypeScript or Python as the client, and click Generate API Key as described in MCP Authentication. Use the key as a Bearer token.
Zapier NLA API key
Go to the NLA Dev App provider debug page, then under User → Information → API Key generate an API key if one does not already exist, as described in the NLA OpenAPI docs at apis.guru's Zapier NLA spec. Send it in the x-api-key header.
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