columntax.com
Column Tax provides embedded tax filing infrastructure for banks, fintechs, and other apps, including IRS/state e-file submission and hosted filing UI. Partners integrate its platform to create users, launch filing flows, and track filing status inside their own products.
Column Tax exposes a documented REST API on `prod.columnapi.com`/`sandbox.columnapi.com` authenticated with HTTP Basic credentials issued by Column Tax, plus public JavaScript, iOS, Android, and React Native SDK distribution surfaces for embedding its tax-filing UI.
- Column Tax REST APIdiscovered
- Column Tax JavaScript SDKdiscovered
Request sandbox access from Column Tax API access by contacting sales@columntax.com. After you complete sandbox integration and QA, Column Tax sends production credentials and you switch your backend from https://sandbox.columnapi.com to https://prod.columnapi.com/.
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