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Avalara Companies API

Manage payer company records

Avalara Companies API is one of 73 APIs that Avalara publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Companies. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an AsyncAPI specification.

This API exposes 27 operations across 16 paths, and defines 5 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against 7 base URLs: https://api.avalara.com/1099/v1, https://api.sbx.avalara.com/1099/v1, https://avataxbr-sandbox.avalarabrasil.com.br/v3, https://rest.avatax.com, https://sandbox-rest.avatax.com, https://api.avalara.com/shared/v1, http://{{baseurl}}.

27 operations 16 paths 5 schemas 3 DELETE14 GET7 POST3 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Servers
https://api.avalara.com/1099/v1
https://api.sbx.avalara.com/1099/v1
https://avataxbr-sandbox.avalarabrasil.com.br/v3
https://rest.avatax.com
https://sandbox-rest.avatax.com
https://api.avalara.com/shared/v1
http://{{baseurl}}
Authentication
HTTP Bearer, HTTP Basic
Resource Areas
1

Authentication & Security 2

Avalara Companies API declares 2 security schemes for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). It accepts HTTP basic authentication (basicAuth).

  • bearerAuth — OAuth 2.0 bearer token
  • basicAuth — Use your AvaTax username/password or accountId/licenseKey as basic auth credentials

Paths & Operations 27

Across 16 paths, the API surfaces 27 operations — 3 DELETE, 14 GET, 7 POST, 3 PUT. Each is listed below with its method, path, parameters, and response codes.

Companies 27

Manage payer company records

GET
/companies
Avalara List Payer Companies
listPayerCompanies → 200
POST
/companies
Avalara Create a Payer Company
createPayerCompany body → 201
GET
/api/v2/companies
Avalara List All Companies
queryCompanies 4 params → 200
POST
/api/v2/companies
Avalara Create a New Company
createCompany body → 201
GET
/api/v2/companies/{id}
Avalara Retrieve a Company by ID
getCompany 2 params → 200
PUT
/api/v2/companies/{id}
Avalara Update a Company
updateCompany 1 param body → 200
DELETE
/api/v2/companies/{id}
Avalara Delete a Company
deleteCompany 1 param → 200
POST
/api/v2/companies/initialize
Avalara Initialize a New Company with Recommended Defaults
initializeCompany body → 200
GET
/companies/{companyId}
Avalara Get a Company by ID
getCompany 1 param → 200
PUT
/companies/{companyId}
Avalara Update a Company Record
updateCompany 1 param body → 200
DELETE
/companies/{companyId}
Avalara Delete a Company Record
deleteCompany 1 param → 204
GET
/api/v2/companies/{id}/certify
Avalara CertifyIntegration
2 params → 200
POST
/api/v2/companies/{id}/filingstatus
Avalara ChangeFilingStatus
3 params body → 200
GET
/api/v2/companies/{id}/filingstatus
Avalara GetFilingStatus
2 params → 200
POST
/api/v2/companies/{companyId}/parameters
Avalara CreateCompanyParameters
3 params body → 200
GET
/api/v2/companies/{companyId}/parameters
Avalara ListCompanyParameterDetails
2 params → 200
POST
/api/v2/companies/{id}/funding/setup
Avalara CreateFundingRequest
3 params body → 200
DELETE
/api/v2/companies/{companyId}/parameters/{id}
Avalara DeleteCompanyParameter
3 params → 200
GET
/api/v2/companies/{companyId}/parameters/{id}
Avalara GetCompanyParameterDetail
3 params → 200
PUT
/api/v2/companies/{companyId}/parameters/{id}
Avalara UpdateCompanyParameterDetail
4 params body → 200
GET
/api/v2/companies/{companyId}/funding/configuration
Avalara FundingConfigurationByCompany
2 params → 200
GET
/api/v2/companies/{companyId}/funding/configurations
Avalara FundingConfigurationsByCompanyAndCurrency
2 params → 200
GET
/api/v2/companies/{id}/configuration
Avalara GetCompanyConfiguration
2 params → 200
POST
/api/v2/companies/{id}/configuration
Avalara SetCompanyConfiguration
3 params body → 200
GET
/api/v2/companies/{id}/paymentdetails/{periodyear}/{periodmonth}
Avalara ListACHEntryDetailsForCompany
4 params → 200
GET
/api/v2/companies/{id}/funding
Avalara ListFundingRequestsByCompany
2 params → 200
GET
/api/v2/companies/mrs
Avalara ListMrsCompanies
1 param → 200

Schemas 5

The contract defines 5 schemas that model the data the API accepts and returns. The most detailed are CompanyInitializationModel (16 properties), CompanyModel (15 properties), SharedCompany (10 properties), PayerCompany (7 properties). Each schema is shown below with its type and property counts.

CompanyModel
object
15 properties
SharedCompany
object
10 properties
FetchResult_CompanyModel
object
2 properties
PayerCompany
object
7 properties
CompanyInitializationModel
object
16 properties 8 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

avalara-companies-api-openapi.yml Raw ↑

Other APIs Avalara publishes across the network.

AvaTax SOAP API
Avalara Tax Content for Retail Configuration API
Self-Serve Tariff Classification API
License Guidance Order API
Avalara 1099 Forms API
Avalara Accounts API
Avalara Addresses API
Avalara AdvancedRules API
Avalara Attributes API
Avalara Authentication API
Avalara AvaFileForms API
Where this information came from

This is an independent, third-party profile of Avalara Companies 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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