> For the complete documentation index, see [llms.txt](https://docs.sign.singpass.gov.sg/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sign.singpass.gov.sg/for-relying-parties.md). # FOR RELYING PARTIES - [Use Cases](https://docs.sign.singpass.gov.sg/for-relying-parties/use-cases.md) - [How our API works](https://docs.sign.singpass.gov.sg/for-relying-parties/how-our-api-works.md) - [Singpass Services Agreement](https://docs.sign.singpass.gov.sg/for-relying-parties/how-our-api-works/singpass-services-agreement.md) - [How to Onboard our API](https://docs.sign.singpass.gov.sg/for-relying-parties/onboard.md): This information is for onboarding onto Sign V3. Do note that we are no longer supporting new requests to onboard onto Sign V1. - [API Documentation](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation.md) - [Sign V3](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/sign-v3.md) - [Initiate Sign Request](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/sign-v3/initiate-sign-request.md) - [Redirect From Sign with Singpass](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/sign-v3/redirect-from-sign-with-singpass.md) - [Accept Success Signing Webhook](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/sign-v3/accept-success-signing-webhook.md) - [Get Signing Result](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/sign-v3/get-signing-result.md) - [JWKS Specification](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/sign-v3/jwks-specification.md) - [Sign Portal User Journey](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/sign-v3/sign-portal.md) - [Step-by-step User Journey](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/sign-v3/sign-portal/sign-portal.md) - [Cancel Sign Request](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/sign-v3/cancel-sign-request.md) - [Sign V1](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/document-signing-v1.md): Last Updated: 2 June 2025 - [User Journey (V1)](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/document-signing-v1/sign-docs.md) - [Transaction Signing](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/transaction-signing.md) - [Embedding Singpass JS](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/transaction-signing/embedding-singpass-js.md) - [Init Transaction Signing](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/transaction-signing/init-transaction-signing.md) - [Exchange Transaction Signature](https://docs.sign.singpass.gov.sg/for-relying-parties/api-documentation/transaction-signing/exchange-transaction-signature.md) - [UX Guidelines](https://docs.sign.singpass.gov.sg/for-relying-parties/ux-guidelines.md): This section contains important UX guidelines to ensure signers are well-guided through their signing journey. - [User Journey Illustration](https://docs.sign.singpass.gov.sg/for-relying-parties/ux-guidelines/user-journey-illustration.md) - [Digital Signing Partners](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners.md) - [Docusign](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/docusign.md) - [Tungsten Automation](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/tungsten-automation.md) - [OneSpan](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/onespan.md) - [Tessaract Technologies Pte Ltd](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/tessaract-technologies-pte-ltd.md) - [Netrust Pte Ltd](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/netrust-pte-ltd.md) - [Modus Consulting](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/modus-consulting.md) - [Redoc.co by Real Estate Doc Pte Ltd.](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/redoc.co-by-real-estate-doc-pte-ltd..md) - [CrimsonLogic](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/crimsonlogic.md) - [Zoho Sign](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/zoho-sign.md) - [Securemetric Technology Pte. Ltd.](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/securemetric-technology-pte.-ltd..md) - [Rently Pte. Ltd.](https://docs.sign.singpass.gov.sg/for-relying-parties/digital-signing-partners/rently-pte.-ltd..md) - [Support](https://docs.sign.singpass.gov.sg/for-relying-parties/support.md) - [Guiding Principles](https://docs.sign.singpass.gov.sg/for-relying-parties/guiding-principles.md) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.sign.singpass.gov.sg/for-relying-parties.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.