Developers & agents

Free deterministic preview, then a metered full packet (with the LLM cover summary). Pay per packet via keyless x402 (USDC on Base) or a B2B key.

Free preview (POST CSV text)

curl -X POST https://incomeproof.aihowtoinvest.com/api/preview \
  -H 'content-type: application/json' \
  -d '{"files":[{"name":"stripe.csv","text":"Date,Net\n2026-01-15,800\n2026-02-15,800"}],"visa":"portugal"}'

Full packet (x402 or key)

POST https://incomeproof.aihowtoinvest.com/api/generate
# body: {"files":[{name,text},...], "visa":"colombia", "applicant":"Jane Doe"}
# 402 with an x402 challenge, send X-PAYMENT (USDC on Base), or:
#   header x-packet-token: cr_… (one-time credit) | ip_… (agency key)
# add "format":"html" for the printable packet

Machine discovery

/.well-known/x402 · /llms.txt · /mcp (MCP). Tools: income_packet (paid), income_preview (free).

Every figure the API returns is a sum of the rows you POST. The service performs no verification and stores nothing beyond abuse counters.