taxjar.com

TaxJar provides sales tax calculation, transaction import, reporting-related data handling, nexus information, and address/rate lookup services for ecommerce and business systems. Its product helps businesses manage U.S. sales tax compliance workflows across jurisdictions.

1 integration · REST

TaxJar exposes a documented REST Sales Tax API authenticated with a user-generated API token; no public evidence of GraphQL APIs, MCP servers, or a first-party standalone CLI was found.

discovered 2mo ago

REST · OpenAPI1

TaxJar Sales Tax APIdiscoveredrest

Credentials

TaxJar API tokenapi_keyGet key ↗

Sign up at Get API Token if you’re new to TaxJar. If you already have an account, log in at TaxJar App and go to Account > API Access to generate a new API token, as described in the Authentication docs.

conventions · 0/8 published

integrations.json✗/.well-known/integrations.json
llms.txt✗/llms.txt
API catalog✗/.well-known/api-catalog
OpenAPI document✗/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json
MCP server card✗/.well-known/mcp/server-card.json
OAuth protected resource✗/.well-known/oauth-protected-resource
Agent card✗/.well-known/agent-card.json
Agent skills✗/.well-known/agent-skills/index.json

Publish these signals → /publishing