avalara.com
Avalara provides tax calculation, compliance, returns, e-invoicing, and related tax-data products for businesses. Its developer portal covers APIs and AI integration endpoints for multiple Avalara product lines.
Avalara exposes HTTP APIs for products including AvaTax REST v2 and Avalara 1099 & W-9, plus MCP/A2A endpoints under mcp.avalara.com and avi.avalara.com; confirmed auth includes AvaTax Basic auth and 1099 client credentials, while broader catalog and MCP auth details were not fully documented in the pages found.
- Avi A2A serverdiscovered
- Avalara API catalogdiscovered
- AvaTax REST v2 APIdiscovered
- Avalara 1099 & W-9 APIdiscovered
For AvaTax REST integrations, sign in to your AvaTax account and use either your AvaTax username/password or your accountId:licenseKey pair as HTTP Basic credentials. Avalara's setup docs are Logins and Resources and Authentication in AvaTax REST v2. The easiest self-service path for API access is to retrieve your license key from the AvaTax web app as described in those docs.
In your Avalara 1099 account, go to Your Profile → API and generate a client ID and client secret as described on the Avalara 1099 & W-9 API page. Use that app registration for OAuth-based API access.
conventions · 0/7 published
- 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