Basil· Surface
Receipts and disclosures, beautifully.
SendGrid, Resend, and Twilio dispatch generic messages. Basil dispatches signed financial documents — invoices, receipts, 1099s, dunning, sign-requests — with cryptographic proof of delivery sealed back into Bean so two years from now you can still prove the customer received their receipt.
Garden Financial
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3AACME Holdings
NRNina
Tax Forms
Request Tax Form
Provider ID
provider_88f2…
Form Type
W-9
Tax Classification
C Corp
TIN
•••••6789
Legal Name
Kernel Systems Incorporated
Business Name
Kernel Systems
Collected forms
Filing year 2026 · e-delivery with consent| Provider | Form Type | TIN Last 4 | Status | Submitted | |
|---|---|---|---|---|---|
| Kernel Systems Inc. | W-9 | •••6789 | Completed | Jun 18, 2026 | View |
| Solenoid DAO | W-9 | •••2214 | Completed | Jun 12, 2026 | View |
| Meridian GmbH | W-8BEN-E | •••0483 | Pending | — | View |
| Tomás Herrera | W-8BEN | •••9921 | Completed | May 30, 2026 | View |
| Forerun Logistics | W-9 | •••4107 | Failed | May 22, 2026 | View |
GARDEN DESKTOP / TAX FORMSThe actual UI. No marketing simulator.
Basil vs. comms tools
Built for documents that are evidence, not marketing.
A SendGrid receipt and a Basil receipt are the same email — but only one of them is admissible in arbitration.
| Capability | SendGrid | Resend | Twilio | Basil |
|---|---|---|---|---|
| Transactional email | ✓ | ✓ | ✓ | ✓ |
| Signed PDF rendering | — | — | — | ✓ |
| Proof-of-delivery sealed | — | — | — | ✓ blake3 |
| Posts back to ledger | — | — | — | ✓ Bean |
| Multi-channel (mail, push, SMS) | — | — | ✓ | ✓ + USPS Certified |
| Multi-language (31+) | templates | templates | templates | ✓ locale-aware tax |
| DKIM + SPF + DMARC | ✓ | ✓ | ✓ | ✓ + sealed |
| Agent-dispatchable | — | — | — | ✓ MCP |
Agent-native
Agents dispatch documents under capability.
Cabbage can ask Basil to email an invoice. Basil seals it, sends it, and captures the open / delivery / bounce. It posts a proof-of-delivery line back to Bean. All under one capability token.
agent session · basilact_bs…
› basil.document.dispatch { form: "W-9 request", to: "Kernel Systems" }✓ capability basil.document.dispatch · tax forms only✓ consent on file · e-delivery accepted← delivered · DKIM pass · opened 14:02proof of delivery sealed · admissible two years from now
One exchange. Real tool names.Full API reference →
Capability matrix
What Basil delivers.
- 01Email, SMS, push, postal (USPS Certified) channels
- 02Signed PDF rendering for invoices, receipts, 1099s, K-1s
- 03Multi-language templates with locale-aware tax
- 04Proof-of-delivery sealed to Bean (blake3)
- 05Dunning campaigns with branch-and-merge flows
- 06Open / read / bounce tracking with carrier fallback
- 07DKIM, SPF, DMARC, BIMI configured out of the box
- 08Tracking pixels are opt-in and disclosed
Companions in Surface
The services that work with this one.
Twelve services. Basil is one.