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Clio Matters API

[Matters](https://help.clio.com/hc/en-us/articles/9285920226075-Clio-Manage-Matters-Overview) in Clio represent a firm’s cases. All relevant information—Bills, Documents, Time Entries, etc.—are contained in the Matter. A user’s ability to access a Matter is controlled by the [Matter Permission settings](https://help.clio.com/hc/en-us/articles/9286062516123-Matter-Permissions-and-Rates). A user without permission will be unable to view or update a Matter.[Support Link](https://help.clio.com/hc/en-us/articles/9285920226075-Clio-Manage-Matters-Overview)[Matters in Clio](http://app.clio.com/matters)## AssociationsA Matter can be persisted with its associations in a single request. The followings detail the nested attributes to persist the associations.### Custom Field ValuesA CustomFieldValue contains the value of a CustomField for a Matter.Below are some examples of how to create, read, update, and destroy the CustomFieldValues of a Matter:#### CreateNote: The value of `id` used here is the value of the `id` parameter in the response received when [creating a new CustomField](https://docs.developers.clio.com/clio-manage/api-reference/#tag/Custom-Fields/operation/CustomField#create) or one returned in a [query of an existing CustomField](https://docs.developers.clio.com/clio-manage/api-reference/#tag/Custom-Fields/operation/CustomField#show).```jsonRequest PATCH /api/v4/matters/1.json { data: { custom_field_values: [ { custom_field: { id: 2 }, value: "Initial value" } ] } }```#### ReadNote: The `id` of the CustomFieldValue is a composite value including the custom field type. Use this `id` to update and destroy the CustomFieldValue.The `id` of the associated Custom Field can be found by querying the `custom_field` for all CustomFieldValues related to the Matter, e.g.: `/api/v4/matters/1?fields=id,display_number,custom_field_values{id,value,custom_field}`Note: The `id` may be `NULL` when the CustomField is displayed by default but has not yet been given a value.```jsonRequest GET /api/v4/matters/1.json?fields=custom_field_values{id,value,custom_field} { data: { custom_field_values: [ { id: "text_line-1", value: "Current value", custom_field: { id: 2 } } ] } }```#### UpdateNote: The value of the CustomFieldValue `id` used here is a composite value and can be found by querying for all CustomFieldValues related to the Matter, e.g.: `/api/v4/matters/1?fields=id,display_number,custom_field_values{id,value,custom_field}`Note: If the `id` is `NULL`, you must provide `custom_field{id}` to create the CustomFieldValue and assign a value (see **Create**).```jsonRequest PATCH /api/v4/matters/1.json { data: { custom_field_values: [ { id: "text_line-1", value: "Updated value" } ] } }```#### DestroyNote: The value of the CustomFieldValue `id` used here is a composite value and can be found by querying for all CustomFieldValues related to the Matter, e.g.: `/api/v4/matters/1?fields=id,display_number,custom_field_values{id,value}````jsonRequest PATCH /api/v4/matters/1.json { data: { custom_field_values: [ { id: "picklist-2", _destroy: true } ] } }```### Custom RatesEach Matter can be set up to be billed on an Hourly basis, Flat Fee basis, or on Contingency.To set the rate type, assign `custom_rate[type]` with one of the values, `"HourlyRate"`, `"FlatRate"` or `"ContingencyFee"`.By default, a Matter is billed on an hourly basis. If the rate type is modified, the persisted rates will be deleted.[Support Link](https://help.clio.com/hc/en-us/articles/9289801180187)#### Hourly RatesSelecting the `"HourlyRate"` type will record time entries based on the custom hourly rates.A custom hourly rate can be associated to a User or a Group.Checkout the sample request to update the hourly rates of a Matter:```jsonRequest PATCH /api/v4/matters/1.json { data: { custom_rate: { type: "HourlyRate", rates: [ // update a rate for a user { id: 1, rate: 100, user: { id: 1 } }, // update a rate for a group { id: 2, rate: 100, group: { id: 1 } }, // create a rate for a user { rate: 100, user: { id: 2 } }, // create a rate for a group { rate: 100, group: { id: 2 } }, // destroy a rate { id: 3, _destroy: true } ] } } }```#### Flat RateSelecting the `"FlatRate"` type will bill the matter with a flat fee. A Matter can only have one flat rate.For associated objects, you can specify `_destroy` attribute to delete the rate.Checkout the sample request to update the flat rate of a Matter:```jsonRequest PATCH /api/v4/matters/1.json { data: { custom_rate: { type: "FlatRate", rates: [ { id: 1, user: { id: 1 }, activity_description: { id: 1 }, rate: 100, } ] } } }```#### Contingency FeeSelecting the `"ContingencyFee"` type will specify a contingency fee percentage on a Matter and the award or settlement amount won at the completion of the case.A Matter can only have one definition of contingency fee.For associated objects, you can specify `_destroy` attribute to delete the rate.Contingency Fee Matters are not available to all plan types. See [here](https://www.clio.com/pricing/) for feature support across different plans.Checkout the sample request to update the contingency fee of a Matter:```jsonRequest PATCH /api/v4/matters/1.json { data: { custom_rate: { type: "ContingencyFee", rates: [ { id: 1, user: { id: 1 }, rate: 20, } ] } } }```### Matter BudgetClio supports tracking a matter budget directly within a Matter.A Matter can only have one matter budget associated with it.A matter budget can not be added to flat rate matters.For associated objects, you can specify the `_destroy` attribute to delete the Matter Budget.Matter Budget are not available to all plan types. See [here](https://www.clio.com/pricing/) for feature support across different plans.Check out the sample request to update the matter budget of a Matter:```jsonRequest PATCH /api/v4/matters/1.json { data: { matter_budget: { budget: 5000000, include_expenses: true, notification_threshold: 100, notify_users: true users: [ { id: 1 }, // destroy { id: 2, _destroy: true } ] } } }```### Grant MatterClio supports associating a Grant with a Matter, using Grant Matters.A Matter can have up to three Grants (and Grant Matters) associated with it.For associated objects, you can specify the `_destroy` attribute to delete Grant Matters.Grant Matters are only for legal aid US customersCheckout the sample request to update a Grant Matter:```jsonRequest PATCH /api/v4/matters/1.json { data: { "grant_matters": [ {"id":{{existing_grant_matter_id}}} ] } } ```### RelationshipsThere are people and/or companies related to a Matter other than the client of the lawyer. Clio helps define how the entities relate to a Matter.#### Please be advised that the use of the relationships field below is discouraged. We plan to deprecate it in the future. Please use [Relationships](https://docs.developers.clio.com/clio-manage/api-reference/#tag/Relationships) instead.Checkout the sample request to update Relationships of a Matter:```jsonRequest PATCH /api/v4/matters/1.json { data: { relationships: [ // update { id: 1, contact: { id: 1 }, description: "Opposing Counsel" }, // create { contact: { id: 2 }, description: "Judge" }, // destroy { id: 2, _destroy: true } ] } }```### Statue Of LimitationsClio supports to track a Statute of Limitations date directly within a Matter.It can be associated with reminders as a Task.A Matter can only have one definition of Statue of Limitations.For associated objects, you can specify `_destroy` attribute to delete the Statue of Limitations.Check out the sample request to update the Statue of Limitations and its reminders of a Matter:```jsonRequest PATCH /api/v4/matters/1.json { data: { statue_of_limitations: [ due_at: "20201231", status: "open", reminders: [ // update { id: 1, duration_unit: "days", duration_value: 1, notification_method: { id: 1 } }, // create { duration_unit: "days", duration_value: 1, notification_method: { id: 2 } }, // destroy { id: 2, _destroy: true } ] ] } }```### Task Template ListsClio supports assigning task template lists to a matter from with the same request thatcreates or updates a matter. Please note that a task template list **can only beassigned**. Once a task template list is assigned, it **cannot be modified or destroyed**.Checkout the sample request to assign a task template list id to a matter:```jsonRequest PATCH /api/v4/matters/1.json { data: { task_template_list_instances: [ { notify_assignees: true, task_template_list: {id: 1}, }, { notify_assignees: false, task_template_list: {id: 2}, } ], } }```

Clio Matters API is one of 85 APIs that Clio publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Matters. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and authentication docs.

This API exposes 5 operations across 2 paths, and defines 41 schemas. It is described by OpenAPI 3.2.0, at version v4.

Requests are made against 4 base URLs: https://app.clio.com/api/v4, https://eu.app.clio.com/api/v4, https://ca.app.clio.com/api/v4, https://au.app.clio.com/api/v4.

5 operations 2 paths 41 schemas 1 DELETE2 GET1 PATCH1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
v4
Base URL
https://app.clio.com/api/v4
Resource Areas
1

Paths & Operations 5

Across 2 paths, the API surfaces 5 operations — 1 DELETE, 2 GET, 1 PATCH, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Matters 5

[Matters](https://help.clio.com/hc/en-us/articles/9285920226075-Clio-Manage-Matters-Overview) in Clio represent a firm’s cases. All relevant information—Bills, Documents, Time Ent…

GET
/matters.json
Return the data for all Matters
Matter#index 26 params → 200400401403429
POST
/matters.json
Create a new Matter
Matter#create 3 params body → 201400403404422401429
GET
/matters/{id}.json
Return the data for a single Matter
Matter#show 6 params → 200400403404401429304
PATCH
/matters/{id}.json
Update a single Matter
Matter#update 5 params body → 200400403404422401429412
DELETE
/matters/{id}.json
Delete a single Matter
Matter#destroy 2 params → 204403

Schemas 41

The contract defines 41 schemas that model the data the API accepts and returns. The most detailed are LegalAidUkMatter_base (85 properties), Contact_base (28 properties), Matter_base (23 properties), User_base (19 properties). Each schema is shown below with its type and property counts.

Task_base
object
16 properties
Matter_List
object
1 property 1 required
MatterBudget_base
object
8 properties
User_base
object
19 properties
AttorneyAllocation_base
object
9 properties
Relationship_base
object
5 properties
CustomField_base
object
11 properties
Group_base
object
6 properties
Folder_base
object
9 properties
MatterCustomRate
CustomFieldSetAssociation_base
object
5 properties
CustomFieldValue
AccountBalance_base
object
5 properties
PolymorphicCustomRate_ActivityDescription_base
object
3 properties
CustomFieldMatterSelection_base
object
2 properties
CustomFieldValue_base
object
11 properties
MatterCustomRate_base
object
2 properties
ErrorDetail
object
2 properties 2 required
TaskTemplateListInstace_base
object
4 properties
Matter
Error
object
1 property 1 required
PolymorphicCustomRate
PolymorphicCustomRate_Group_base
object
3 properties
PicklistOption_base
object
6 properties
PracticeArea_base
object
7 properties
MatterBillRecipient
MatterStage_base
object
7 properties
CustomField
PolymorphicCustomRate_base
object
8 properties
PolymorphicCustomRate_User_base
object
4 properties
ContingencyFee_base
object
5 properties
Contact_base
object
28 properties
Matter_base
object
23 properties
Matter_Show
object
1 property 1 required
PicklistOption
MatterBillRecipient_base
object
4 properties
EvergreenRetainer_base
object
5 properties
SplitInvoicePayer_base
object
8 properties
Currency_base
object
6 properties
LegalAidUkMatter_base
object
85 properties
KycFieldValue_base
object
10 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

clio-matters-api-openapi.yml Raw ↑

Other APIs Clio publishes across the network.

Clio Webhooks
Clio App Directory
Clio Activities API
Clio Activity Descriptions API
Clio Activity Rates API
Clio Allocations API
Clio Bank Accounts API
Clio Bank Transactions API
Clio Bank Transfers API
Clio Bill Themes API
Clio Billable Clients API
Clio Billable Matters API
Where this information came from

This is an independent, third-party profile of Clio Matters API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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