REST API · MCP

Invoia for developers

Invoicing and exact revenue recognition, driven from your own tooling — or handed to an agent that has to ask before it writes.

curl

# the first call
curl https://invoia.io/api/v1/invoices \
  -H "Authorization: Bearer ivk_…"

For AI clients

Connect an agent over MCP

Point claude.ai, Claude Code, ChatGPT or Cursor at invoia.io/api/mcp. Every write is proposed, then committed on your word.

For your own code

Bearer an ivk_ key, address every resource by your own external_id, and take signed webhooks for the changes you did not trigger.