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AI-assisted engineering proposal platform

Turn a rough engineering brief into a sourced, review-ready proposal.

Anvil surfaces the missing decisions, develops the system architecture, and keeps every component, price and claim traceable for engineer approval.

See the sourcing example
  • Source-linked requirements
  • Supplier offers with evidence
  • Engineer-controlled approval
Cold-store monitoring retrofitIllustrative sample
  1. 01Brief
  2. 02Clarification
  3. 03Architecture
  4. 04Components
  5. 05Supplier Pricing
  6. 06Labour & Risk
  7. 07Proposal
Requirement

“Cold rooms must be monitored down to −22 °C without stopping production.” — quoted from the brief.

From brief
Architecture

Distributed sensing nodes on a wired field bus, gateway in the existing panel.

AI-assisted
Supplier offer

Board-level digital temperature-sensor IC · TMP117AIDRVR · illustrative stock and price

Illustrative
Proposal

Assembled from approved work only, with scope, BOM, labour, risks and exclusions.

Traceable
Illustrative supplier data — not a live quote.Full chain in the workflow section
Source traceabilityEvery requirement keeps a link to the brief line, PDF page or clarification answer it came from.
Exact MPN identity matchPart numbers are normalised and matched on identity only. An identity match does not prove suitability — that stays meets, deviation, unknown or engineer approved.
Supplier offers with evidenceBetaOffers carry supplier, stock, MOQ, lead time and the provider retrieval time. Coverage depends on the distributor connections configured for your workspace.
Engineer approvalNo sourced price, architecture or assumption reaches the quote without an explicit approval.
Proposal revisionsIn developmentEach issue records the work it was assembled from. Immutable revision history and public client links are still being built.

Workflow

Seven stages. One traceable proposal.

Requirement → decision → architecture → component → supplier offer → proposal. The chain is stored, not redrawn, so you can always answer where a number came from.

Stage 01 of 07 · Capture the source

Brief

The client brief or PDF is stored as written. Every later statement stays linked back to the sentence it came from.

Text or PDF intakeSource retained verbatimNo interpretation yet
Client briefPDF · 6 pages · stored verbatim
Illustrative sample
ProjectCold-store monitoring retrofit
Illustrative sample
Extracted requirements12 · each linked to a source line
Illustrative sample
Open decisions4 raised as clarification questions
Illustrative sample

Core capabilities

Four surfaces that carry a proposal end to end.

Each one is a real Anvil workspace. Every panel below uses illustrative sample data where a live project would hold provider results.

Requirements intelligence

Read the brief. Surface what it never answered.

Anvil extracts the facts a brief actually states and separates them from the decisions it leaves open, so nothing gets quietly invented.

  • Text and PDF briefs, stored as written
  • Every extracted requirement keeps its source line
  • Missing information becomes a question, an approved assumption or an exclusion
Requirements registerIllustrative sample
Operating environment−22 °C freezer duty · quoted from brief line 4
Sourced
Installation constraintNo room shutdown permitted · quoted from brief line 7
Sourced
Alert escalation pathNot stated in the brief · raised as clarification 02
Decision needed
Network availability on siteNot stated · recorded as an assumption pending approval
Assumption
4 requirements · 2 open decisionsNothing is inferred into a fact

Supplier sourcingBeta

Select the component. Compare supplier offers with their evidence.

Offers arrive per component with supplier, stock, MOQ, lead time and the provider retrieval time attached. You accept one, record a manual quote, or leave the line unresolved. Live multi-provider coverage requires a configured supplier connection.

Supplier offers · one componentIllustrative sample

Illustrative supplier data — not a live quote.

Component requirementBoard-level digital temperature-sensor IC (I²C / SMBus)
Exact MPN identity matchTMP117AIDRVR
SuitabilityDeviation — engineer review
Installed quantity24
SupplierIllustrative stockMOQPurchase qtyIllustrative unit price (USD)Extended (USD)Lead timeSource status
Distributor A
595-TMP117AIDRVR		4,1821243.910093.84Ships same dayExample retrieval timestamp
2026-02-11 09:14 UTC
Distributor B
296-TMP117AIDRVRCT-ND		1,9101244.040096.962 business daysExample retrieval timestamp
2026-02-11 09:14 UTC
Distributor C
3766281		2605254.2600106.509 daysExample retrieval timestamp
2026-02-11 09:14 UTC
Partial results are reported, never filled in. Unpriced lines are excluded from the total and block export until you resolve or exclude them. Only genuine cached provider responses ever show a real retrieval time.

Evidence and engineer control

AI where it accelerates. Engineer approval where it matters.

Anvil is not an autonomous engineer. It removes the mechanical work of structuring, searching and assembling, then stops at every point where professional judgement is required.

RequirementCold rooms to −22 °C

Stated in the brief and quoted verbatim.

DecisionSMS before email

Answered in clarification 02 by the client.

ArchitectureWired field bus

Approved eight-part system structure.

ComponentTemperature-sensor IC

Requirement with quantity basis recorded.

Supplier offerAccepted offer

Exact MPN identity, stock and retrieval time attached.

ProposalIssued document

Section traced back to the requirement.

Upstream changes mark downstream work outdated — they never delete it. Re-approve what actually changed instead of rebuilding the proposal.

AI-assisted extraction

Requirements, clarification questions and the draft architecture are generated with structured output, never free-form guessing.

AI authored · engineer editable

Evidence-backed sourcing

Supplier offers carry stock, MOQ, lead time and a provider retrieval timestamp. A price with no evidence is not shown as a price.

Beta · configured connection required

Engineer approval

Architecture, component requirements and supplier offers each need an explicit approval before they can affect the quote.

Human decision · required

Recorded output

The issued document records the approved work it was assembled from. Full section-to-requirement traceability is in development.

In development

Anvil assists qualified engineering review. It is not engineering certification, legal approval or regulatory compliance, and it does not sign off a design on your behalf.

Proposal output

The workspace becomes the document.

Nothing is retyped. The proposal is assembled from approved engineering work, and exclusions and assumptions travel with it instead of being quietly dropped.

Technical and commercial proposalIllustrative sample — not a live quote
Sample project
Project
Cold-store monitoring retrofit · sample
Scope
Supply, install and commission distributed monitoring
Architecture
Eight-part structure, engineer approvedApproved
Selected BOM
15 lines · approved offers onlyApproved
Pricing coverage
12/15 priced · 3 flaggedReview
Labour
Phased man-hours from your rate cardApproved
Risks
4 registered · mitigation recordedReview
Assumptions
6 carried from unanswered decisionsReview
Approval status
Awaiting final engineer sign-offReview
Export unlocks when every blocker is resolved or explicitly excluded.DOCX and PDF exports · frozen client links with online acceptance

Pricing

Use the complete workflow before paying.

Two plans today. Free allows 2 new proposals per calendar month with watermarked exports. Professional allows 50 new proposals per calendar month and clean, customer-branded exports.

Free

$0 forever · 2 proposals / month · watermarked exports
$0 / month
  • 2 new proposals per calendar month
  • Complete seven-stage workflow
  • Supplier candidates (beta) and documented manual quotes
  • Built-in proposal checks and export gates
  • DOCX export with Anvil attribution

ProfessionalHigher volume

$39 / month · 50 proposals per calendar month · clean branded exports
$39 / month
  • 50 new proposals per calendar month
  • Up to 50 supplier searches per proposal
  • Clean, customer-branded DOCX exports
  • Secure card & wallet checkout, cancel anytime
Secure checkoutUSD · billed monthly

  • Card, wallet or bank. Cards, Apple Pay, Google Pay and PayPal at checkout.

  • Handled by Paddle. Payment details are entered with Paddle, never on Anvil.

  • Cancel anytime. Stop the next renewal from Billing in one click.

Team and Business plans — not available yetShared proposal registers, reviewer seats and quote-to-cash are still being built. They are not sold today and are not included in any current plan.
Join the waitlist

Prices in USD. Cancel renewal from Billing. Supplier sourcing is in beta and depends on the distributor connections configured for your workspace.

Before you start

Clear boundaries for engineering work.

How sourcing, evidence and approval actually behave — including what Anvil refuses to do on your behalf.

No. Anvil structures the brief, drafts the architecture and gathers supplier evidence. Architecture, component requirements, supplier offers, labour and risks each require an explicit engineer approval before they affect the quote or the issued document.

Turn the next rough brief into a reviewable engineering proposal.

Start with your own brief, or open the sample project and walk the full seven-stage workflow before you commit anything.