兴趣爱好WesternAgent ONE API Integration & Net Sheet Data
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Turn Closing Cost Data Into Actionable API Calls for Real Estate Professionals
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INTRODUCTION
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Real estate professionals rely on accurate, fast closing cost calculations to win listings,
close deals, and deliver confident buyer guidance. WesternAgent ONE — a city/county-specific
closing cost app published by PalmAgent — has become a trusted tool across the western United
States, giving agents instant seller net sheets and buyer estimates preloaded with local fee
data.
But when that data lives only inside a mobile app, it stays siloed. CRMs can't read it.
Loan origination systems can't reconcile against it. Marketing platforms can't schedule it.
That's the gap OpenFinance Lab addresses with the WesternAgent ONE API integration service:
we analyze the app's data flows and deliver production-ready API endpoints your tech stack
can actually call.
Whether you're building a brokerage CRM, a lender pre-qualification workflow, a title quote
pipeline, or a multi-county relocation comparison tool, this integration puts structured
closing cost data — seller net proceeds, buyer cash-to-close, recording fees, transfer taxes,
and title insurance rates — at your fingertips via documented, authenticated API calls.
This guide covers the supported API features, the real-world scenarios they serve, and why
integrating WesternAgent ONE data through an OpenFinance-style layer is the right move for
teams operating at scale in U.S. real estate.
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SUPPORTED API FEATURES
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The WesternAgent ONE API integration exposes the full range of data flows the app produces,
organized into clearly scoped, callable endpoints. Below is an overview of the feature
modules delivered with every integration engagement.
• Seller Net Sheet Generation API
Submit a property transaction and receive a complete line-item seller net sheet:
gross sale price, all deductions (commissions, title premiums, escrow fees, recording
fees, transfer taxes, prorated property taxes, HOA dues), and final estimated net
proceeds. Outputs are available as structured JSON, CSV/Excel, or branded PDF.
• Buyer Estimate API
Input a loan scenario and receive a full cost-to-close breakdown covering loan amount,
monthly PITI, prepaid interest, escrow reserves, lender fees, owner's and lender's
title insurance, and total estimated cash to close. Designed to feed buyer-side CRMs
and pre-approval workflows without re-keying numbers.
• Closing Cost & Title Rate Reference API
Query the preloaded city/county data that ships inside WesternAgent ONE: per-county
recording fee schedules, documentary and transfer stamp tax rates, promulgated and
filed title insurance rate tables, and typical HOA document and survey fees. Ideal for
market comparison dashboards and third-party quote validation.
• HomeLink Intelligence & Market Data API
Pull AI-estimated monthly holding costs for a subject property, plus national, state,
and local appreciation data behind the Buy Now vs. Buy Later comparison added in
PalmAgent's 2024-2025 platform refresh. Also surfaces local rental-market data added
in the same update cycle.
• Buyer Compensation & Buydown Calculator API
Access the all-new buyer compensation calculator (released July 2025), the swipe-over
modified-offer feature, and the buydown calculator with HOA support and multi-loan
handling. Model seller-paid buydowns, 2-1 buydown scenarios, and concession structures
programmatically.
• Branded PDF & Multi-Format Export
Render any net sheet or buyer estimate as a co-branded PDF (agent plus title company
logo), or export raw line items as JSON or CSV for a data warehouse — all from a
single API call, keeping client-facing documents and machine-readable records in sync.
• Webhook Event Stream
Subscribe to real-time events such as net sheet generation, with each payload carrying
the transaction identifiers, state/county, sale price, net proceeds, and rate source
used. Supports immutable audit logging and CRM automation triggers.
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USE CASES & APPLICATIONS
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WesternAgent ONE API integration unlocks value across five distinct business workflows
in real estate, lending, title, and marketing. Each scenario below maps the integration
to a concrete operational need.
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[1] CRM-Embedded Instant Seller Net Sheet
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• Brokerage agents need to produce seller net sheets without switching apps or
re-entering data that already lives in the CRM listing record.
• The net sheet API accepts the listing price, existing loan payoff, commission
percentages, and county, then returns the full line-item proceeds breakdown.
• Results — including a branded PDF — are stored directly against the listing record,
available for review at any point from listing appointment through final closing.
• Eliminates manual duplication errors and gives transaction coordinators a single
source of truth for quoted net proceeds.
• Particularly powerful for brokerages managing high listing volume across multiple
agents and counties, where consistent calculation standards matter.
[2] Lender Pre-Qualification & Cost-to-Close Sync
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• Loan origination systems need buyer cost estimates that align with what the agent
already showed the buyer, preventing surprise discrepancies on the Loan Estimate.
• The buyer estimate API returns PITI, prepaids, reserves, and lender and title fees
in a format the LOS can reconcile against the TILA-RESPA Integrated Disclosure.
• Shared, machine-readable cost figures across agent and lender — the data portability
principle Open Banking applies to statements, now applied to closing costs.
• Supports pre-approval packets that arrive with realistic cash-to-close figures rather
than generic placeholders, improving buyer confidence and reducing last-minute fallout.
• Works across conventional, FHA, VA, and other loan types supported by the app.
• Relocation platforms and referral networks need to answer "what will closing cost in
County A versus County B?" for buyers moving between markets.
• The closing cost reference API pulls per-county recording fees, transfer tax rates,
and title insurance rate bands for any supported jurisdiction in the WesternAgent ONE
dataset.
• The platform can diff two or more counties for the same price point and surface the
cost delta in a user-friendly relocation guide or agent presentation.
• Transforms reference data that was previously buried inside a mobile app PDF into a
queryable service any web or mobile interface can consume.
• Valuable for teams serving corporate relocation clients across the western U.S. who
need market-specific cost transparency before committing to a destination.
[4] Title Company Quote & Compliance Audit Pipeline
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• Title agencies issuing closing cost quotes need every figure logged with its rate
source, underwriter, and timestamp for regulatory and internal audit purposes.
• The title rate card endpoint delivers per-underwriter, per-state premium tables
by price band; the webhook stream fires whenever a net sheet is generated, writing
each event to the agency's data warehouse with full rate-source attribution.
• Supports compliance with TILA-RESPA disclosure structure and aligns with FinCEN
Residential Real Estate Reporting Rule fields for non-financed transfers.
• Delivers the consented event stream plus immutable records audit pattern that
regulators expect — each quote traceable to the exact rate card version used.
• Applicable to multi-underwriter title agencies working across PalmAgent-branded
apps including FidelityAgent ONE, IndependenceTitleAgent ONE, and UnityAgent ONE.
[5] "Cost of Waiting" Buyer Nurture Automation
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• Marketing platforms need to re-engage fence-sitting buyers with personalized,
data-driven content rather than generic drip emails.
• HomeLink Intelligence holding cost data plus Buy Now vs. Buy Later appreciation
figures are scheduled monthly per saved property and delivered to the platform.
• The platform automatically generates an updated cost-of-waiting card — showing
how much the buyer has spent in rent and missed in appreciation since they paused
their search — and emails it without manual intervention.
• Local rental-market data added in PalmAgent's 2024-2025 update enriches the
comparison with neighborhood-level rent benchmarks.
• Converts a passive prospect database into an active, insight-driven nurture loop
that motivates action at the moment market conditions shift in the buyer's favor.
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BENEFITS & ADVANTAGES
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Integrating WesternAgent ONE data through an OpenFinance-style API layer delivers
measurable advantages across operations, compliance, and client experience.
✓ City & County Precision
WesternAgent ONE ships preloaded with jurisdiction-specific fee schedules — recording
fees, transfer taxes, and title rates resolved to the city and county level across
supported U.S. markets. Your integration inherits that granularity automatically.
✓ Cross-App Compatibility
WesternAgent ONE shares its calculation engine with PalmAgent ONE, FidelityAgent ONE,
IndependenceTitleAgent ONE, WestTXAgent ONE, WesternPower ONE, and UnityAgent ONE.
One integration can be extended to all branded variants with configuration changes,
not a full rewrite — consolidating data from every app your team uses.
✓ Multi-Format Output
Every endpoint supports JSON for programmatic consumption, CSV/Excel for data
warehouse ingestion, and branded PDF for client-facing documents — all from a
single call, eliminating format conversion overhead.
✓ Compliance-Ready Field Structure
Net sheet and buyer estimate outputs are aligned with the TILA-RESPA Integrated
Disclosure structure, include RESPA Section 8 considerations for co-branded use,
and carry FinCEN Residential Real Estate Reporting Rule fields where relevant —
so your compliance team has what it needs without custom mapping.
✓ Real-Time Webhook Delivery
Event-driven architecture means your CRM, LOS, or data warehouse receives net
sheet and buyer estimate events as they occur, with signed payloads and idempotency
keys for reliable, duplicate-safe processing.
✓ AI-Powered Market Intelligence
HomeLink Intelligence holding cost estimates and the Buy Now vs. Buy Later
appreciation comparison — features PalmAgent added in its 2024-2025 platform
refresh — are surfaced as API-accessible data, enabling automated investor and
buyer advisory content at scale.
✓ Fast Delivery & Flexible Engagement
A first API drop with full documentation typically takes 5 to 12 business days.
Both source-code-delivery and pay-per-call hosted API models are available, so
teams can choose the engagement that fits their build strategy and budget.
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SUBSCRIPTION PLANS
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OpenFinance Lab offers two engagement models for WesternAgent ONE API integration,
designed to fit different team sizes and technical preferences.
Source Code Delivery — from $300
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Receive complete, runnable API source code (Python and Node.js) plus full
documentation: OpenAPI/Swagger specification, protocol and auth-flow report,
CSV/Excel and branded-PDF export helpers, automated tests, and a Postman/Insomnia
collection. Payment is due after delivery, once you've confirmed the code works —
no upfront risk.
Pay-Per-Call Hosted API
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Use OpenFinance Lab's hosted endpoints and pay only for the calls you make.
No upfront cost, no infrastructure to manage — well-suited for teams that prefer
usage-based pricing or want to validate demand before committing to a full build.
Scales automatically with call volume.
Both models include:
• Compliance guidance (TRID-aligned fields, RESPA Section 8 notes, FinCEN RRE
fields, data retention recommendations)
• NDA and Data Processing Agreement available on request
• Optional ongoing maintenance as PalmAgent ships platform updates
Typical delivery timeline: 5 to 15 business days for a first API drop.
Multi-state coverage, white-label title-underwriter variants, or real-time
webhook pipelines may extend timelines depending on scope.
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CONCLUSION
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WesternAgent ONE is already in the hands of licensed real estate agents, broker-owners,
transaction coordinators, loan officers, and title and escrow professionals across the
western United States. It calculates seller net sheets and buyer estimates with city and
county precision in seconds — the kind of transactional, reference-grade data that CRMs,
loan origination systems, title platforms, and marketing automation tools desperately need
but rarely have direct programmatic access to.
The WesternAgent ONE API integration from OpenFinance Lab closes that gap. By delivering
documented, authenticated endpoints for net sheet generation, buyer cost estimates,
closing cost reference data, HomeLink Intelligence market analytics, and buydown and
compensation calculators — all with multi-format export and real-time webhook support —
the integration turns a mobile app workflow into a data infrastructure asset your entire
stack can rely on.
Because WesternAgent ONE shares its calculation engine with the broader PalmAgent ONE
family, a single integration scope can grow to cover FidelityAgent ONE, IndependenceTitleAgent
ONE, WestTXAgent ONE, WesternPower ONE, and UnityAgent ONE with configuration changes rather
than rebuilds — making it the right foundation for any team consolidating closing cost data
across multiple branded apps.
If your brokerage, lender, title agency, or proptech platform needs structured, machine-
readable closing cost data from WesternAgent ONE, now is the time to act. Delivery starts
in days, not months, and you only pay for source code delivery after you've confirmed the
integration works.
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ACCESS & CONTACT
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Visit the full integration details and submit your requirements at:
https://openfinance-lab.com/westernagent-one.html
From the contact page you can specify:
• Which data flows you need (net sheets, buyer estimates, closing cost reference,
HomeLink Intelligence, buydown and compensation calculators)
• States and counties in scope
• Expected call volume and preferred engagement model
• Any existing account credentials or sandbox access you can authorize
First API drop with documentation: typically 5 to 12 business days.
Source code delivery starts from $300. Pay-per-call hosted API available with
no upfront cost.
Note: WesternAgent ONE and PalmAgent are products of PalmAgent Software.
OpenFinance Lab is an independent integration studio and is not affiliated
with PalmAgent. All product names and trademarks belong to their respective owners.
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