> ## Documentation Index > Fetch the complete documentation index at: https://docs.mangrovesystems.com/llms.txt > Use this file to discover all available pages before exploring further. # List quantification methodologies > Returns the quantification methodologies available for report creation, which are those provisioned for the authenticated account (used by at least one of the account's quantification models), ordered by name. Methodologies belonging to other accounts are not returned. Filterable fields: `name`. Requires the `read:report` token scope. ## OpenAPI ````yaml GET /quantification_methodologies openapi: 3.1.0 info: title: Mangrove - API version: 1.1.0 description: > ## Filtering and sorting List endpoints that accept `filter` take one query parameter per condition, written `filter[field][comparator]=value`, for example `filter[name][contains]=North`. The comparators are `eq`, `neq`, `gt`, `geq`, `lt`, `leq` and `contains`, and `filter[field]=value` is short for `eq`. Conditions combine with AND. `contains` matches part of the value, is case-sensitive, and applies only to text fields. An unknown field or comparator, a value that doesn't fit the field's type, or a list or object as the value returns 400 with a message naming the problem. Each list operation names its filterable fields; some take only `eq`, and say so. `sort` takes a comma-separated list of fields, for example `sort=-created_at,name`. Each field sorts ascending, or descending with a `-` prefix. Unknown sort fields are ignored. Sorting by `id` orders by the record's internal ID, not its friendly ID. Each list operation names its sortable fields. servers: - url: https://app.gomangrove.com/api/v1 security: - sec0: [] paths: /quantification_methodologies: get: summary: List quantification methodologies description: >- Returns the quantification methodologies available for report creation, which are those provisioned for the authenticated account (used by at least one of the account's quantification models), ordered by name. Methodologies belonging to other accounts are not returned. Filterable fields: `name`. Requires the `read:report` token scope. operationId: list-quantification-methodologies parameters: - $ref: '#/components/parameters/Page' - $ref: '#/components/parameters/PageSize' - name: sort in: query description: 'Sortable fields: `id`, `name`, `created_at`, `updated_at`.' schema: type: string example: name - name: filter[name][contains] in: query description: Name contains this text. schema: type: string - $ref: '#/components/parameters/Fields' - $ref: '#/components/parameters/SummaryResponseMode' responses: '200': description: >- Paginated list. With `response_mode=summary`, a count and up to 10 samples instead. content: application/json: example: data: - id: 1 name: Biochar Methodology description: Quantification methodology for biochar carbon removal report_type: default - id: 2 name: DAC Methodology description: Quantification methodology for direct air capture report_type: default info: items: 2 page_size: 20 total_items: 2 current_page: 1 next_page: null previous_page: null total_pages: 1 sort: [] filter: [] fields: null schema: oneOf: - type: object properties: data: type: array items: $ref: '#/components/schemas/QuantificationMethodology' info: $ref: '#/components/schemas/PaginationInfo' required: - data - info - allOf: - $ref: '#/components/schemas/SummaryResponse' - properties: samples: items: $ref: '#/components/schemas/QuantificationMethodology' '400': description: >- An unsupported filter, comparator or `response_mode`, or an invalid `page`. content: application/json: example: errors: - message: 'Unsupported filter ''report_type''. Filterable fields: name.' schema: $ref: '#/components/schemas/ErrorResponse' '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' components: parameters: Page: name: page in: query description: >- The page to return, starting at 1. A value below 1 or a non-numeric value returns 400. schema: type: integer format: int32 default: 1 minimum: 1 PageSize: name: page_size in: query description: >- Rows per page, from 1 to 200. A value below 1 counts as 1 and a value above 200 as 200; a non-numeric value uses the default. schema: type: integer format: int32 default: 20 minimum: 1 maximum: 200 Fields: name: fields in: query description: Comma-separated fields to return in each row. Other names are ignored. schema: type: string SummaryResponseMode: name: response_mode in: query description: >- `default` returns a page of rows. `summary` returns the number of matching records and up to 10 sample rows. This endpoint doesn't support `summary_with_export`, which returns 400. schema: type: string enum: - default - summary schemas: QuantificationMethodology: type: object properties: id: type: integer name: type: string description: type: - string - 'null' report_type: type: string enum: - isometric_issuance_report - puro_issuance_report - verra_monitoring_report - forty_five_q_report - mrets_rng_report - default description: The report format used for this methodology's reports. PaginationInfo: type: object description: >- Where this page sits in the full result, and the sort, filters and fields the request applied. properties: items: type: integer description: Rows on this page. example: 2 page_size: type: integer description: Rows per page. example: 20 total_items: type: integer description: Rows matching the request across all pages. example: 2 current_page: type: integer description: This page's number, starting at 1. example: 1 next_page: type: - integer - 'null' description: The next page's number, or null on the last page. previous_page: type: - integer - 'null' description: The previous page's number, or null on the first page. total_pages: type: integer description: Pages in the full result. example: 1 sort: type: array description: >- The sort applied, one entry per field, in order. Present on list endpoints that accept `sort`. items: type: object properties: field: type: string direction: type: string enum: - asc - desc filter: type: array description: >- The filters applied, one entry per field and comparator. Present on list endpoints that accept `filter`. items: type: object properties: field: type: string comparator: type: string enum: - eq - neq - gt - geq - lt - leq - contains value: {} fields: type: - array - 'null' description: >- The requested `fields`, or null when none were requested. Present on list endpoints that accept `fields`. items: type: string SummaryResponse: type: object description: Returned instead of a page when `response_mode=summary`. required: - count - samples - response_mode properties: count: type: integer description: Number of records matching the request's filters. samples: type: array maxItems: 10 description: >- Up to 10 matching records, in the same shape as the page's `data` rows. items: type: object response_mode: type: string enum: - summary ErrorResponse: type: object required: - errors properties: errors: type: array items: type: object required: - message properties: message: type: string description: Human-readable error message field: type: string description: Attribute the error applies to (validation errors only) code: type: string description: Machine-readable error code (validation errors only) blocking: type: array description: >- Bounded preview of the records blocking a destroy (blocked-destroy errors only) items: $ref: '#/components/schemas/DeletionBlockingRecord' blocking_count: type: integer description: >- Total count of records blocking a destroy (blocked-destroy errors only) config_key: type: string description: >- The data feed source config setting to fix, when the error is on `config` (data feed source validation errors only) count: type: number description: >- The limit or comparison value the failed validation checked against, e.g. a maximum length or a numeric bound (validation errors only, when the validation has one) value: description: >- The rejected value, e.g. on an inclusion or uniqueness failure (validation errors only, when the validation reports one) DeletionBlockingRecord: type: object required: - type properties: type: type: string friendly_id: type: string name: type: - string - 'null' description: >- Display label, and the only identifier for records that have no friendly_id responses: Unauthorized: description: >- The API token is missing, invalid or expired. The body is empty, except for an expired token, which returns the error below. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: errors: - message: API token has expired Forbidden: description: >- The token lacks the scope the operation's description names, or a condition the description states applies, such as a feature that isn't enabled for your account. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: errors: - message: You are not authorized to perform this action securitySchemes: sec0: type: apiKey in: header name: Authorization x-bearer-format: '' ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.