# Thomson Reuters Schedule M3 Line Code API **Canonical:** https://apis.io/apis/thomson-reuters/thomson-reuters-schedule-m3-line-code-api/ **Provider:** Thomson Reuters — https://apis.io/providers/thomson-reuters/ **Base URL:** https://api.onesourcetax.com/administration/v1/financial-hierarchies **Documentation:** https://developers.thomsonreuters.com/ Thomson Reuters Schedule M3 Line Code API is one of 324 APIs that [Thomson Reuters](https://apis.io/providers/thomson-reuters/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 163 JSON Schema definitions. Tagged areas include Schedule M3 Line Code. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and 163 JSON Schemas. The Schedule M3 Line Code API from Thomson Reuters — 1 operation(s) for schedule m3 line code. ## Operations (2) | Method | Path | Summary | |---|---|---| | GET | `/v1/years/{year}/tax-return-types/{taxReturnType}/charts/schedule-m3-chart/lines` | Returns line codes for a Schedule M3 Chart. | | PATCH | `/v1/years/{year}/tax-return-types/{taxReturnType}/charts/schedule-m3-chart/lines` | Updates Schedule M3 lines. Enter a year and taxReturnType in the URL | ## Machine-readable artifacts (262) - **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/openapi/thomson-reuters-schedule-m3-line-code-api-openapi.yml - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/2A8320F8-60E8-2D73-A3F0-0D097B720566 - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-custom-level4-node-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-api-collection-financial-hierarchy-branch-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-api-collection-financial-hierarchy-node-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-custom-level4-node-request-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-id-response-string-schema.json - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/2074AAC5-1C5E-2FF4-01D9-3B3E12470E4E - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-predictive-mapping-request-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-predictive-mapping-response-financial-hierarchy-dto-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-predictive-feedback-request-schema.json - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/4A4ED3B6-3CF9-A7AA-9D0B-7B498E084A66 - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/3A3301AC-8457-530C-A784-CE7EF7400372 - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-transaction-extract-request-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-parameters-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-transaction-extract-response-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-api-info-response-schema.json - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/AA887EC9-9ADD-9096-871D-5482B80A5B52 - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-topic-dto-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-topic-download-dto-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-topic-download-list-dto-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-api-collection-topic-record-dto-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-topic-record-values-dto-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-api-collection-topic-dto-schema.json - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/31e1b889-f210-4d5b-9bcf-635010703dc9 - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/31888b43-b888-4dd6-a7b7-2e067dbf888e - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-tax-provision-detail-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-tax-provision-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-state-provision-detail-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-state-provision-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-effective-tax-rate-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-payable-schema.json - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/a1deda95-6752-46bb-80c4-077adf399b0b - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/f2b3d8b9-9f8e-4a45-bc9e-3c2f5e1a7c72 - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-account-model-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-partnership-k1-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-operation-model-schema.json - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-account-response-model-schema.json - **Documentation** — https://developers.thomsonreuters.com/pages/api-catalog/B2230E9D-2AF1-4898-97B8-AE02DDD77148 - **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/thomson-reuters/refs/heads/main/json-schema/thomson-reuters-trta-athena-models-api-v4-chart-of-accounts-chart-of-accounts-reponse-schema.json - …and 222 more, listed in full on the page. ## Other Thomson Reuters APIs (12) - [Thomson Reuters Westlaw API](https://apis.io/apis/thomson-reuters/westlaw-api/) - [Thomson Reuters Checkpoint API](https://apis.io/apis/thomson-reuters/checkpoint-api/) - [Thomson Reuters Risk and Fraud API](https://apis.io/apis/thomson-reuters/risk-fraud-api/) - [Datasets API](https://apis.io/apis/thomson-reuters/datasets-api/) - [Exports API](https://apis.io/apis/thomson-reuters/exports-api/) - [Tax Return Import/Export API](https://apis.io/apis/thomson-reuters/tax-return-import-export-api/) - [Companies API](https://apis.io/apis/thomson-reuters/companies-api/) - [Prints API](https://apis.io/apis/thomson-reuters/prints-api/) - [Reports API](https://apis.io/apis/thomson-reuters/reports-api/) - [Firms API](https://apis.io/apis/thomson-reuters/firms-api/) - [Matters API](https://apis.io/apis/thomson-reuters/matters-api/) - [Users API](https://apis.io/apis/thomson-reuters/users-api/) ## Tags Schedule M3 Line Code --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/thomson-reuters/thomson-reuters-schedule-m3-line-code-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/thomson-reuters/.