The proposal workbench for every RFP, RFQ, and task order you touch.
Ingest solicitations from eBuy, SAM.gov, SEWP, or email. Get a compliance matrix and a compliant first draft in minutes instead of days. Manage the full lifecycle — Market Research, Solicitation, Post-Award, and Administration — on one profile, for every ID/IQ you hold.
Free to start. Two free steps before sign-up. Your work saves automatically.
RFx Builder is the four-phase workbench for every contract you run.
Most federal contractors respond to RFPs, RFQs, task orders, CPARs, modifications, and close-out packages across five different tools, three inboxes, and one very tired spreadsheet. RFx Builder collapses all of it into a single workbench organized around the real lifecycle of an ID/IQ: Market Research, Solicitation, Post-Award, and Administration. Everything draws from one company profile.
Universal Ingestion
Connect eBuy, SAM.gov API, and SEWP vendor portal. Or forward notifications to your ingest inbox. Every RFx lands in one normalized queue, deduplicated, with attachments parsed.
Qualification Engine
Score every incoming RFx against your company profile. Bid/no-bid in 30 minutes with the numbers to back it up.
Compliance Matrix
Every Section L/M requirement extracted from the RFx, mapped to a draft section, tracked to closure. You know what's covered before pink-team.
Auto-Draft Generator
Claude-grounded first drafts pulled from your past performance, capability statement, and pricing workbook. Compliant on first pass.
Four-Phase Workbench
Market Research, Solicitation, Post-Award, Administration — each with its own queue, wizard, and artifact library. One login, one profile.
Per-ID/IQ Dashboards
Every ID/IQ you hold gets its own dashboard: active task orders, mods in flight, CPARs due, ceiling used, PoP remaining.
Three questions RFx Builder makes painless.
“An RFP just dropped. Should I bid?”
You read 80 pages of Section L/M, try to cross-check against your capability statement, and burn two days before you even know if you're qualified.
The Qualification Engine scores the RFx against your profile in minutes. You see a bid/no-bid recommendation with past performance coverage, certification fit, pricing feasibility, and realistic turnaround.
“How do I draft a compliant response on a 10-day turn?”
You copy last year's winning proposal, hope the Section L hasn't changed, and miss three requirements you'll find in debrief.
Auto-Draft Generator builds a compliant first draft grounded in your actual past performance. The Compliance Matrix confirms every Section L requirement is covered before you hit submit.
“How do I stop losing track of CPARs, mods, and option exercises?”
CPARs due in 30 days live in an email you already deleted. The option exercise window closes while you're drafting a different proposal.
Every ID/IQ has a Post-Award dashboard showing CPARs due, modifications in flight, option exercises upcoming, and deliverable deadlines. Nothing falls through.
How RFx Builder works.
Set up your ID/IQs.
[5–10 minutes per ID/IQ]Pick from a catalog of 50+ named contract vehicles (OASIS+, GSA MAS, SEWP V, STARS III, Alliant 2, CIO-SP3, and more) or define a custom one. Each ID/IQ auto-fills labor categories, CLINs, and ceiling guidance.
Connect your sources.
[5–10 minutes per source]Connect eBuy, SAM.gov API, and SEWP V in under 10 minutes each. Or use your universal ingest inbox for any portal not directly integrated. Every RFx lands in your normalized queue.
Work the four phases.
[Ongoing]Each phase has its own queue, wizard, and artifact library. Market Research for Sources Sought and RFIs. Solicitation for RFPs and task orders. Post-Award for CPARs, mods, and MSRs. Administration for documents, financials, and close-out.
Export and file.
[Minutes per response]Every response exports as a submission-ready package: PDF + Word + supporting spreadsheets + metadata JSON. Auto-populated SF-18 / SF-1449 where applicable. Upload to the government channel you're submitting through.
How RFx Builder compares.
| Feature | Word + SharePoint | Proposal consultant | Data vendor | Point tool | Generic AI writer | RFx Builder |
|---|---|---|---|---|---|---|
| Ingests from all sources | Manual | No | Feed only | Partial | No | Yes — eBuy, SAM, SEWP, email |
| Auto compliance matrix | You build it | They build, then leave | No | No | No | Yes, auto-extracted |
| AI drafting on your profile | No | No (generic templates) | No | No | Hallucinates | Yes, grounded only in your data |
| Full lifecycle (pre-award → close-out) | No | No — scoped | No | Solicitation only | No | Yes — 4 phases |
| Per-ID/IQ dashboards | No | No | No | No | No | Yes |
| Reusable profile across responses | No | No | N/A | Partial | No | Yes — ingest once |
What you walk away with.
What's running under RFx Builder.
FAR Parts 12, 15, and 16 (commercial items, negotiated procurements, IDIQs); the Section L/M evaluation frameworks used across MATOCs; the CPARS rating structure and narrative rules; the J.P-1 through J.P-12 attachment-letter family where applicable.
FedCache (CaptureInsider's federal data warehouse — SAM.gov, USASpending, FPDS, Federal Register, agency feeds, updated nightly). Your eBuy, SAM, and SEWP accounts via user-scoped credentials. Every query timestamped.
Claude Sonnet for drafting and compliance extraction; Claude Haiku for qualification scoring and lightweight checks. Model choice logged per call. We do not train on your proposals.
Next.js on Vercel, Supabase (US-region) with row-level security verified by failing tests, Stripe for billing. TLS 1.3, AES-256 at rest. Per-account credential isolation — your source connections are never visible to another tenant.
Federal acquisition practitioners who've run captures from Sources Sought through close-out across civilian and defense agencies. Encoded as a platform.
Pricing for RFx Builder.
3 auto-drafts per month. $49/mo bundled with any Builder purchase.
- ✓Email ingestion
- ✓Federal opportunities from SAM.gov
- ✓Qualification engine
- ✓Compliance matrix
- ✓AI Chat (RFx context)
- ✓3 auto-drafts/month
15 auto-drafts per month + eBuy browser extension. $129/mo bundled with Builder.
- ✓Everything in Starter
- ✓eBuy browser extension
- ✓Pricing workbook
- ✓Pink team review
- ✓3 user seats
- ✓15 auto-drafts/month
Unlimited auto-drafts, red team review, and custom qualification rules. $349/mo bundled.
- ✓Everything in Pro
- ✓Red team review
- ✓Custom qualification rules
- ✓Unlimited seats
- ✓Priority support
- ✓Unlimited auto-drafts
Frequently asked questions.
Start your first draft in minutes, not days.
Free tier includes 1 ID/IQ, 1 source connection, and 3 drafts per month. No credit card.
Start a draft responseOne profile. Every tool. No re-asks.