# RampID API Documentation

## API Reference
- [About the RampID API](https://developers.liveramp.com/rampid-api/reference/the-basics.md): Learn about the RampID API.
- [About RampIDs](https://developers.liveramp.com/rampid-api/reference/rampids.md): Learn about the RampIDs returned for API calls, including ID versions and ID formats.
- [RampID API Endpoints](https://developers.liveramp.com/rampid-api/reference/rampid-api-endpoints.md)
- [Batch Request Calls](https://developers.liveramp.com/rampid-api/reference/batch-request-calls.md): Learn about the Retrieval API batch request calls and how they're used.
- [API Roles](https://developers.liveramp.com/rampid-api/reference/api-roles.md)
- [Request an Access Token](https://developers.liveramp.com/rampid-api/reference/request-an-access-token-1.md): Learn how to authenticate to the RampID API.
- [About LiveRamp Identity Resolution](https://developers.liveramp.com/rampid-api/reference/about-liveramp-identity-resolution.md): Learn how to match data to RampIDs.
- [Data You Can Send with the Retrieval API](https://developers.liveramp.com/rampid-api/reference/data-you-can-send.md): Learn about types of input data accepted by the Retrieval API.
- [Data Returned by the Retrieval API](https://developers.liveramp.com/rampid-api/reference/data-that-is-returned.md): Learn about the data that's returned by the Retrieval API, including RampIDs and match metadata.
- [Requesting Multiple RampID Matching](https://developers.liveramp.com/rampid-api/reference/requesting-more-than-one-rampid-match.md): With the 1:1 permission, you may request multiple RampID matches for one PII record.
- [About Response Documents](https://developers.liveramp.com/rampid-api/reference/response-documents.md): Learn about response documents' content and structure.
- [Person Documents](https://developers.liveramp.com/rampid-api/reference/person-documents.md)
- [Group Documents](https://developers.liveramp.com/rampid-api/reference/group-documents.md)
- [Batch Documents](https://developers.liveramp.com/rampid-api/reference/batch-documents.md)
- [Error Documents](https://developers.liveramp.com/rampid-api/reference/error-document.md): Learn about the error documents returned when the API encounters an error with one of the records in a batch.
- [About Data Bundles](https://developers.liveramp.com/rampid-api/reference/about-data-bundles.md): Learn how the Retrieval API data bundles organize response data.
- [Anonymous AbiliTec Bundle](https://developers.liveramp.com/rampid-api/reference/anonymous-abilitec-bundle.md)
- [Computed Touchpoint Links Bundle](https://developers.liveramp.com/rampid-api/reference/computed-touchpoint-links-bundle.md)
- [Metadata Bundles](https://developers.liveramp.com/rampid-api/reference/metadata-bundles.md)
- [matchMetadata Bundle](https://developers.liveramp.com/rampid-api/reference/matchmetadata-bundle.md)
- [validationErrors Bundle](https://developers.liveramp.com/rampid-api/reference/validationerrors-bundle.md)
- [contactFlags Bundle](https://developers.liveramp.com/rampid-api/reference/contactflags-bundle.md)
- [emailInsights Bundle](https://developers.liveramp.com/rampid-api/reference/emailinsights-bundle.md)
- [Match Raw PII to RampID](https://developers.liveramp.com/rampid-api/reference/batch-request-calls-match.md): Use the Match endpoint to match raw PII data to a RampID.
- [Match Hashed PII to RampID](https://developers.liveramp.com/rampid-api/reference/batch-request-calls-lookup.md): Use the Lookup endpoint to match hashed PII data to a RampID.
- [About Identity Envelopes](https://developers.liveramp.com/rampid-api/reference/the-identity-envelope-decryption-endpoint.md): Learn what identity envelopes are.
- [Create Identity Envelopes](https://developers.liveramp.com/rampid-api/reference/create-identity-envelopes.md): Use the API to create encrypted identity envelopes for RampIDs.
- [Create Identity Envelopes (Batch Request)](https://developers.liveramp.com/rampid-api/reference/create-batched-identity-envelopes.md): Create encrypted identity envelopes for multiple RampIDs using a batch call.
- [Create Identity Envelope (Single Transaction)](https://developers.liveramp.com/rampid-api/reference/create-a-single-identity-envelope.md): Create an encrypted identity envelope for a single RampID.
- [Decrypt Identity Envelopes](https://developers.liveramp.com/rampid-api/reference/decrypt-identity-envelopes-1.md): Use the API to decrypt identity envelopes.
- [Decrypt Identity Envelopes (Batch Request)](https://developers.liveramp.com/rampid-api/reference/decrypt-identity-envelopes-batch-request.md): Use the Identity Envelope API to decrypt multiple identity envelopes and receive their underlying RampIDs.
- [Decrypt an Identity Envelope (Single Transaction)](https://developers.liveramp.com/rampid-api/reference/single-transaction-decrypt.md): Use the Identity Evelope API to decrypt a single identity envelope and receive a RampID.
- [About RampID Translation](https://developers.liveramp.com/rampid-api/reference/transcode-rampids-1.md): Use the Translation endpoint to translate RampIDs from one partner encoding to another.
- [Translate RampIDs (Batch Request)](https://developers.liveramp.com/rampid-api/reference/batch-request-calls-transcode-rampids.md): Use the Translation API to translate multiple RampIDs from one partner encoding to another.
- [Translate RampIDs (Single Transaction)](https://developers.liveramp.com/rampid-api/reference/single-transaction-transcode.md): Use the Translation API to translate a single RampID from one partner encoding to another, either from your encoding to a partner's or from a partner's encoding to yours.

## Changelog
- [Added llms.txt](https://developers.liveramp.com/rampid-api/changelog/llmstxt.md)
- [New RampID API Documentation Structure](https://developers.liveramp.com/rampid-api/changelog/new-rampid-api-documentation-structure.md)
- [RampID API Security Enhancements](https://developers.liveramp.com/rampid-api/changelog/rampid-api-security-enhancements.md)
- [Update to Error Documents](https://developers.liveramp.com/rampid-api/changelog/update-to-error-documents.md)
- [TLS Requirement Upgrade](https://developers.liveramp.com/rampid-api/changelog/tls-requirement-upgrade.md)