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Avalara Certificates API

Manage exemption certificates and CertExpress invitations

Avalara Certificates 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 Certificates. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an AsyncAPI specification.

This API exposes 22 operations across 13 paths, and defines 8 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against 4 base URLs: https://rest.avatax.com, https://sandbox-rest.avatax.com, https://api.certcapture.com/v2, http://{{baseurl}}.

22 operations 13 paths 8 schemas 2 DELETE9 GET9 POST2 PUT

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Servers
https://rest.avatax.com
https://sandbox-rest.avatax.com
https://api.certcapture.com/v2
http://{{baseurl}}
Authentication
HTTP Basic, HTTP Bearer
Resource Areas
1

Authentication & Security 2

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

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

Paths & Operations 22

Across 13 paths, the API surfaces 22 operations — 2 DELETE, 9 GET, 9 POST, 2 PUT. Each is listed below with its method, path, parameters, and response codes.

Certificates 22

Manage exemption certificates and CertExpress invitations

GET
/api/v2/companies/{companyId}/certificates
Avalara List Certificates for a Company
queryCertificates 4 params → 200
POST
/api/v2/companies/{companyId}/certificates
Avalara Create a New Certificate
createCertificate 1 param body → 201
GET
/certificates
Avalara List Certificates
listCertificates 4 params → 200
POST
/certificates
Avalara Create a Certificate
createCertificate body → 201400
GET
/certificates/{certificateId}
Avalara Get a Certificate
getCertificate 1 param → 200404
PUT
/certificates/{certificateId}
Avalara Update a Certificate
updateCertificate 1 param body → 200
DELETE
/certificates/{certificateId}
Avalara Delete a Certificate
deleteCertificate 1 param → 204
GET
/certificates/{certificateId}/attachment
Avalara Download Certificate Attachment
getCertificateAttachment 1 param → 200
POST
/certificates/{certificateId}/attachment
Avalara Upload Certificate Attachment
uploadCertificateAttachment 1 param body → 200
DELETE
/api/v2/companies/{companyId}/certificates/{id}
Avalara DeleteCertificate
3 params → 200
GET
/api/v2/companies/{companyId}/certificates/{id}
Avalara GetCertificate
3 params → 200
PUT
/api/v2/companies/{companyId}/certificates/{id}
Avalara UpdateCertificate
4 params body → 200
GET
/api/v2/companies/{companyId}/certificates/{id}/attachment
Avalara DownloadCertificateImage
3 params → 200
POST
/api/v2/companies/{companyId}/certificates/{id}/attachment
Avalara UploadCertificateImage
3 params body → 200
GET
/api/v2/companies/{companyId}/certificates/setup
Avalara GetCertificateSetup
2 params → 200
POST
/api/v2/companies/{companyId}/certificates/setup
Avalara RequestCertificateSetup
2 params body → 200
POST
/api/v2/companies/{companyId}/certificates/{id}/attributes/link
Avalara LinkAttributesToCertificate
4 params body → 200
POST
/api/v2/companies/{companyId}/certificates/{id}/customers/link
Avalara LinkCustomersToCertificate
4 params body → 200
GET
/api/v2/companies/{companyId}/certificates/{id}/attributes
Avalara ListAttributesForCertificate
3 params → 200
GET
/api/v2/companies/{companyId}/certificates/{id}/customers
Avalara ListCustomersForCertificate
3 params → 200
POST
/api/v2/companies/{companyId}/certificates/{id}/attributes/unlink
Avalara UnlinkAttributesFromCertificate
4 params body → 200
POST
/api/v2/companies/{companyId}/certificates/{id}/customers/unlink
Avalara UnlinkCustomersFromCertificate
4 params body → 200

Schemas 8

The contract defines 8 schemas that model the data the API accepts and returns. The most detailed are Certificate (12 properties), CertificateModel (10 properties), CertCaptureCustomer (10 properties), CertificateCreateRequest (8 properties). Each schema is shown below with its type and property counts.

CertAttribute
object
4 properties
ErrorResponse
object
1 property
FetchResult_CertificateModel
object
2 properties
CertificateModel
object
10 properties
Certificate
object
12 properties
CertCaptureCustomer
object
10 properties
CertificateListResponse
object
2 properties
CertificateCreateRequest
object
8 properties 2 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

avalara-certificates-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 Certificates 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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