--- title: "Coupa API: connect it to your AI chat ยท Hypamoon" description: "The Coupa API is open and signs in with OAuth client credentials. What your AI chat can build with it on Hypamoon, how it connects, and the sources we checked." url: https://hypamoon.com/connect-to/coupa --- 1. [Connect to](https://hypamoon.com/connect-to) 2. Coupa ERP and accounting # Connect Coupa to Hypamoon Yes, with one catch. Coupa has an open API that you can use yourself, but it signs in with OAuth only, and that takes more work in a Hypamoon adapter today. Open ## The check Three questions about the API of Coupa, answered from its own docs. **Public API docs**\ **Yes.** Coupa's developer documentation describes the Core API and how to set up OAuth clients. [Read the docs](https://docs.coupa.com/en/developer-documentation/the-coupa-core-api/oauth-2.0-and-oidc/set-up-an-openid-connect-client) **A key you create yourself**\ **Yes.** An administrator creates an OAuth client with client credentials and scopes under Setup, OAuth2/OpenID Connect Clients, in the company's own Coupa instance. [docs.coupa.com](https://docs.coupa.com/en/developer-documentation/the-coupa-core-api/oauth-2.0-and-oidc/set-up-an-openid-connect-client) **Versions or a changelog**\ **Yes.** Coupa publishes product release notes, and the move from API keys to OAuth clients was announced with a transition. [docs.coupa.com](https://docs.coupa.com/en/developer-documentation/the-coupa-core-api/oauth-2.0-and-oidc/set-up-an-openid-connect-client) **How it signs in**\ OAuth 2.0 client credentials from a client your Coupa administrator creates, with scopes per resource; old API keys must be moved to OAuth clients. **Webhooks**\ **Not confirmed.** **Hosting**\ Cloud ## What you can build Look up purchase orders and invoices in Coupa from your chat, and push approved invoices into your own payment flow. Your chat writes it as a Hypamoon adapter from the docs above. Reading starts after you click Allow in the portal, and every write waits for your approval, one call at a time. [How adapters work](https://hypamoon.com/docs/adapters) ### Good to know - Coupa signs in with OAuth or signed requests only, with tokens that expire. The Hypamoon vault holds a fixed key today, so an adapter for Coupa takes more work: ask your chat to check this first. - Scopes decide which resources a client can read or write. API keys under Setup are being replaced by OAuth clients. ## Try it in your chat Fill in what to read and write, and send it. Say this in your chat > Build the Hypamoon recipe build-an-adapter for Coupa. API docs: https://docs.coupa.com/en/developer-documentation/the-coupa-core-api/oauth-2.0-and-oidc/set-up-an-openid-connect-client. Read: \[what\]. Write: \[what, or nothing\]. [Open in Claude](https://claude.ai/new?q=Build%20the%20Hypamoon%20recipe%20build-an-adapter%20for%20Coupa.%20API%20docs%3A%20https%3A%2F%2Fdocs.coupa.com%2Fen%2Fdeveloper-documentation%2Fthe-coupa-core-api%2Foauth-2.0-and-oidc%2Fset-up-an-openid-connect-client.%20Read%3A%20%5Bwhat%5D.%20Write%3A%20%5Bwhat%2C%20or%20nothing%5D.) In Claude, or another chat with the full Hypamoon connection; adapters are not in ChatGPT yet. You paste the key in the portal, never in the chat. [The full recipe](https://hypamoon.com/r/build-an-adapter) ## Sources Checked on 7 November 2026. - [docs.coupa.com/en/developer-documentation/the-coupa-core-api/oauth-2.0-and-oidc/set-up-an-openid-connect-client](https://docs.coupa.com/en/developer-documentation/the-coupa-core-api/oauth-2.0-and-oidc/set-up-an-openid-connect-client) Coupa is a name of its owner, used here only to describe the software. This page is not an official integration and Hypamoon has no partnership with Coupa. Found something that changed? Tell us at [support](https://hypamoon.com/support#contact). ## More in erp and accounting - [**Acumatica** Open](https://hypamoon.com/connect-to/acumatica) - [**AFAS Profit** Open](https://hypamoon.com/connect-to/afas-profit) - [**DATEV** Possible](https://hypamoon.com/connect-to/datev) - [**e-Boekhouden.nl** Open](https://hypamoon.com/connect-to/e-boekhouden) - [**Exact for Accountancy** Open](https://hypamoon.com/connect-to/exact-for-accountancy) - [**Exact Globe+** Possible](https://hypamoon.com/connect-to/exact-globe) - [**Exact Gripp** Possible](https://hypamoon.com/connect-to/exact-gripp) - [**Exact Multivers** Possible](https://hypamoon.com/connect-to/unit4-multivers) - [**Exact Online** Open](https://hypamoon.com/connect-to/exact-online) - [**FreshBooks** Open](https://hypamoon.com/connect-to/freshbooks) - [**Holded** Open](https://hypamoon.com/connect-to/holded) - [**Isah** Unknown](https://hypamoon.com/connect-to/isah) - [**Jortt** Open](https://hypamoon.com/connect-to/jortt) - 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[**KashFlow** Unknown](https://hypamoon.com/connect-to/kashflow) - [**Money S3** Possible](https://hypamoon.com/connect-to/money-s3) - [**Money S5** Unknown](https://hypamoon.com/connect-to/money-s5) - [**InsERT Subiekt** Possible](https://hypamoon.com/connect-to/insert-subiekt) - [**Comarch ERP Optima** Unknown](https://hypamoon.com/connect-to/comarch-erp-optima) - [**Symfonia** Unknown](https://hypamoon.com/connect-to/symfonia) - [**Pandle** Possible](https://hypamoon.com/connect-to/pandle) - [**Modern Treasury** Open](https://hypamoon.com/connect-to/modern-treasury) - [**Trovata** Possible](https://hypamoon.com/connect-to/trovata) - [**Kyriba** Unknown](https://hypamoon.com/connect-to/kyriba) - [**Agicap** Open](https://hypamoon.com/connect-to/agicap) - [**Embat** Unknown](https://hypamoon.com/connect-to/embat) - [**Spendesk** Open](https://hypamoon.com/connect-to/spendesk) - [**Soldo** Open](https://hypamoon.com/connect-to/soldo) - [**Zoho Expense** Open](https://hypamoon.com/connect-to/zoho-expense) - 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[**Sage X3** Open](https://hypamoon.com/connect-to/sage-x3) - [**Sage 50 (UK)** Closed](https://hypamoon.com/connect-to/sage-50-uk) - [**TeamSystem Enterprise** Possible](https://hypamoon.com/connect-to/teamsystem-enterprise) - [**Zucchetti (Mago)** Unknown](https://hypamoon.com/connect-to/zucchetti-mago) - [**a3innuva** Possible](https://hypamoon.com/connect-to/a3innuva) - [**Cegid Primavera (ROSE and Jasmin)** Unknown](https://hypamoon.com/connect-to/cegid-primavera) - [**PHC GO** Possible](https://hypamoon.com/connect-to/phc-go) - [**QuickBooks Desktop** Open](https://hypamoon.com/connect-to/quickbooks-desktop) - [**Epicor Kinetic** Possible](https://hypamoon.com/connect-to/epicor-kinetic) - [**Infor CloudSuite (ION API)** Open](https://hypamoon.com/connect-to/infor-ion-api) [All 1094 tools](https://hypamoon.com/connect-to) ## Tool not listed? Ask the chat to check its API. The same three checks work for any software. Your chat reads the vendor's own docs and tells you what it found. Say this in your chat > Check if \[software\] has an open API that a Hypamoon adapter can use: public API docs, a key or token I can create myself without asking the vendor, and versions or a changelog. Link the pages you used. [Open in Claude](https://claude.ai/new?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) [Open in ChatGPT](https://chatgpt.com/?q=Check%20if%20%5Bsoftware%5D%20has%20an%20open%20API%20that%20a%20Hypamoon%20adapter%20can%20use%3A%20public%20API%20docs%2C%20a%20key%20or%20token%20I%20can%20create%20myself%20without%20asking%20the%20vendor%2C%20and%20versions%20or%20a%20changelog.%20Link%20the%20pages%20you%20used.) Fill in the name of your software. Checking needs no connection to Hypamoon. ## Ready to connect Coupa? Connect your chat once, then ask it to build the adapter. [Start free](https://app.hypamoon.com/?mode=signup&utm_source=connect-to&utm_campaign=coupa) Works in Claude, ChatGPT and Copilot. [Add to Claude](https://hypamoon.com/connect?via=connect-to~coupa#claude) [Add to ChatGPT](https://hypamoon.com/connect?via=connect-to~coupa#chatgpt) [Add to Copilot](https://hypamoon.com/docs/microsoft-copilot)