Verified
Evidence is attached and reviewable.
Accepted supplier results retain the product URL or quote reference, currency, retrieval time and stock information when the source provides it.
The technical proposal system for engineering teams
Turn a rough brief into reviewed requirements, architecture, component evidence, commercial build-up and a defensible DOCX.
Two proposals each month are free · Engineer approval remains required before issue
Human review active
Confirmed from the brief
Linked to architecture and component requirements
Visible to the engineer before DOCX export
One saved record · Seven controlled stages
Three working phases keep the full seven-stage process understandable without hiding the technical and commercial controls inside it.
01 / Define
Capture the source brief, resolve scope-changing questions and review eight editable architecture areas before selecting hardware.
Reviewed requirements, confirmed decisions and an editable architecture.2 confirmed · 1 open
Product walkthrough
Follow one brief through requirements, review, sourcing, commercial build-up and the final proposal. Anvil remains in beta, so the interface will continue to improve.
Inside the walkthrough
Capture source facts and missing decisions
Review the technical basis before components
Keep supplier evidence beside each line
Apply labour, contingency and terms
Clear blockers before DOCX export
Safeguards
Generated technical work stays separate from commercial evidence. The engineer controls architecture, component approval, assumptions, rates, risks and the final issue.
Read the security approachVerified
Accepted supplier results retain the product URL or quote reference, currency, retrieval time and stock information when the source provides it.
Engineer required
If a suitable part or price cannot be verified, the line stays unresolved and is excluded from the commercial total.
Export blocked
Deterministic proposal checks and separate export gates must be cleared before the client DOCX can be generated.
The built-in checks support proposal review. They are not engineering certification, legal approval or regulatory compliance.
Pricing
Free includes two new proposals per calendar month. Professional is for proposal volume beyond that monthly allowance.
Free
For evaluating Anvil with real briefsProfessional Higher volume
For work beyond the free monthly allowancePay securely with Card or PayPal — no PayPal account required.
Prices in USD. Cancel renewal from Billing. Supplier sourcing and generated stages depend on third-party service availability.
Before you start
Anvil supports judgement and proposal control. It does not replace an engineer or certify a design.
No. Anvil drafts structured work, identifies missing decisions and presents supplier candidates. The engineer reviews the architecture, component matches, assumptions, commercial inputs and final document.