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Untax MCP Server

answering

Untax is answering right now. Last checked 1 min ago. It exposes 20 tools.

Property assessment research, free private veteran review PDFs and consented VA requirements checks.

Uptime history 6 days of history
6 days agonow
100.0%
Uptime 24h
92 of 92 checks
20
Tools
read from the server
487 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 187

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 21 October 2026. No other catalogue keeps this.

25 Oct 77 tools appeared analyze_parcel_reappraisal_surge, audit_combat_deployment_abatement, audit_commercial_reclassification and 74 more
25 Oct 77 tools disappeared analyze_parcel_reappraisal_surge, audit_combat_deployment_abatement, audit_commercial_reclassification and 74 more
25 Oct 7 tools changed the parameters they ask for14 times that day audit_microtransaction, generate_veteran_packet, get_appeal_lifecycle and 4 more
25 Oct 10 tool descriptions were rewritten complete_tax_sandbox_order, generate_veteran_packet, get_appeal_lifecycle and 7 more
25 Oct a tool changed version2 times that day
21 Oct 4 tools changed the parameters they ask for audit_microtransaction, get_microtransactions_catalog, recheck_property_opportunities and 1 more
21 Oct 2 tool descriptions were rewritten get_property_assessment, recheck_property_opportunities
21 Oct a tool changed version
and 8 more, back to 21 October 2026

Tools have disappeared from this server

A tool that vanishes takes a piece of your agent with it, and the change arrives silently. Watch this server and every such change lands in your inbox.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

run in your terminal
claude mcp add untax --transport http https://untax.io/mcp
Settings → Connectors → Add custom connector, then paste this address
https://untax.io/mcp
~/.codex/config.toml
[mcp_servers.untax]
url = "https://untax.io/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "untax": {
      "url": "https://untax.io/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "untax": {
      "type": "http",
      "url": "https://untax.io/mcp"
    }
  }
}

Available tools 20

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

owner
get_owner_review_details
Read one explicitly selected saved property review using the same source-bound service as the website. Requires both identifiers from get_owner_workspace and a live owner:read grant. Honor source_context_current and reconfirmation_required; never silently reuse stale previous_owner_answers. Ask relevant unanswered questions without repeating current answered or skipped items. User reports remain separate from county facts; changes and sensitive evidence belong in the protected browser review.
get_owner_workspace
Read the signed-in owner's actual saved property reviews with a revocable owner:read grant. Returns explicit property and review identifiers; no active property is assumed. Ask the user to select a review when the target is ambiguous. Does not establish ownership, benefit eligibility, savings or filing authority.
start
start_tax_sandbox
Start an explicitly requested test-only appeal or property-record service checkout for one source-backed property. Requires owner:sandbox sign-in. Uses Stripe TEST mode and isolated orders; does not establish ownership, eligibility, savings or an open appeal window. Never charges real money or files with a county. Show the returned test checkout link when payment is pending. When an order_id is known, read the same order after checkout or an uncertain failure before retrying. If starting checkout fails before an order_id is returned, retry start_tax_sandbox with the original idempotency_key; do not create a new key for the same attempt. get_tax_sandbox_order and complete_tax_sandbox_order take only order_id. Report test payment, draft generation, download availability and external delivery as separate observed states. Do not claim the draft is available until the order confirms its artifact is available; a payment or download URL alone is not proof. A sandbox receipt or simulated submission is not county filing, external email delivery or permission for live payments.
start_va_connection
Start an explicitly requested VA connection for this signed-in account and assistant. Requires owner:va permission. Show connection_url to confirm the account and selected fields, review an existing saved verification or complete a new official VA sign-in, and approve this app's sharing separately. Verification is saved to the account only after approval. Return to this conversation and call get_va_connection afterward. The link itself grants no access; never request passwords, tokens, SSNs or full VA documents in chat.
appeal
get_appeal_lifecycle
Read a general assessment-review checklist. Takes no property inputs and does not check a filing window, deadline, fee, eligibility or outcome. Personal procedures require official property, jurisdiction and year review.
audit
audit_microtransaction
Research an explicitly selected property and identify evidence requirements for a requested property-record service. Returns source observations and service capabilities; does not establish savings, quote a payable fee, inspect payment methods, charge, generate a filing packet or submit a correction. Sandbox checkout uses separate authenticated sandbox tools.
complete
complete_tax_sandbox_order
Verify fresh Stripe TEST payment for your own sandbox order and release its hash-bound draft packet and receipt. Records a simulated submission only; never submits a real appeal or changes county records. Requires owner:sandbox sign-in and a completed test checkout. Show the returned test checkout link when payment is pending. When an order_id is known, read the same order after checkout or an uncertain failure before retrying. If starting checkout fails before an order_id is returned, retry start_tax_sandbox with the original idempotency_key; do not create a new key for the same attempt. get_tax_sandbox_order and complete_tax_sandbox_order take only order_id. Report test payment, draft generation, download availability and external delivery as separate observed states. Do not claim the draft is available until the order confirms its artifact is available; a payment or download URL alone is not proof. A sandbox receipt or simulated submission is not county filing, external email delivery or permission for live payments.
connection
get_va_connection
Read the dated, minimized VA verification explicitly shared with this account and assistant. Requires owner:va and live sharing permission; browser sign-in alone does not grant access. The saved account snapshot survives provider-session expiry and server restart. Disclose verified_at and freshness; saved facts are not a live provider check and may need reverification. Expired or revoked app permission stops sharing. These facts do not establish property ownership, primary residence, tax eligibility or filing authority.
disconnect
disconnect_va_connection
Disconnect only this assistant's access to this account's shared VA verification when the user requests it. Requires owner:va. The saved account verification remains until the owner removes it in Account. Does not disconnect another account or assistant, submit a claim or alter VA records.
facilities
find_va_facilities
Find official VA facilities in an explicit state, optionally filtered by city and facility type. Public information only. If location is missing, ask the returned question; do not infer a state or treat a VA facility as a county tax office or accredited VSO. Sandbox results are sample data.
facility
get_va_facility
Read one official VA facility selected by its returned id. Returns available address, telephone and website information with source and environment. No Veteran records or eligibility determination.
form
get_va_form
Look up an explicit VA form number, such as 21-0966, and return available title, revision information and official PDF link. Use form_name from search results for this lookup; the separate catalog id is not a form number. If form_name is missing, ask for the form number. A form link is not a completed application, submission or proof of eligibility.
forms
find_va_forms
Find official VA forms by an explicit form number or search text. Ask what form or purpose is needed when query is missing. Show returned revision information and official PDF links; this does not complete or submit a claim.
generate
generate_veteran_packet
Generate a real free private Veteran REVIEW/DRAFT PDF from an explicitly selected saved review. Requires owner:read. Missing answers remain visible review questions; no VA connection is required. Supplemental answers remain reported and are not saved to the customer review. Optional connected VA facts require additional owner:va permission and explicit use for this applicant. Returns an expiring authenticated download of exact compiled bytes, not an official application, eligibility decision, savings estimate or filing.
microtransactions
get_microtransactions_catalog
Inspect an evidence-gated research inventory of property-tax review routes and actual session tool availability. Each route reports held/unavailable/evidence_required and not_screened applicability; no eligibility, pricing, savings, automatic refund or filing readiness is established.
property
get_property_assessment
Get retained county assessment observations and source provenance for a supported address or parcel ID. Missing facts stay unavailable; commercial source area is not finished living area. Any comparison is a draft with evidence holds and does not establish personal tax savings or filing readiness. For a property audit or a request to find tax-reduction routes, review opportunity_screen before concluding. A weak or held comparable-property analysis does not rule out independent relief, record corrections or billing research. Ask the next relevant unanswered targeted_questions item one at a time; use available_questions for relevant follow-ups. Accept none, not sure or skip, and do not repeat answered or skipped questions in this conversation unless the user changes the facts. After an answer, call recheck_property_opportunities for the same selected property and county with the accumulated explicit owner_answers and skipped_question_ids. Rechecks are stateless: resend still-applicable prior answers, preserve explicit false and empty arrays, and omit unknown or skipped fields instead of sending null or inventing a negative answer. Resend stable skipped_question_ids until the user supplies an answer or asks to revisit the question. Skips suppress prompts only and leave requirements unresolved. Do not transfer property-specific answers or skips to another property. When the user is done or skips the remaining questions, summarize supported research routes and missing evidence without treating unknowns as a denial. For a fact-only lookup, answer the requested fact and offer relevant screening without requiring an unrelated intake. Owner answers do not verify eligibility, savings, authority, payment or filing readiness.
recheck
recheck_property_opportunities
Recheck possible tax-reduction routes against current retained property records and a few owner-reported categories. Returns research and next questions; answers never establish eligibility, verified evidence, savings, owner authority, payment or filing readiness. Do not send exact income, ages, identifiers, documents or a caller-supplied audit. For a property audit or a request to find tax-reduction routes, review opportunity_screen before concluding. A weak or held comparable-property analysis does not rule out independent relief, record corrections or billing research. Ask the next relevant unanswered targeted_questions item one at a time; use available_questions for relevant follow-ups. Accept none, not sure or skip, and do not repeat answered or skipped questions in this conversation unless the user changes the facts. After an answer, call recheck_property_opportunities for the same selected property and county with the accumulated explicit owner_answers and skipped_question_ids. Rechecks are stateless: resend still-applicable prior answers, preserve explicit false and empty arrays, and omit unknown or skipped fields instead of sending null or inventing a negative answer. Resend stable skipped_question_ids until the user supplies an answer or asks to revisit the question. Skips suppress prompts only and leave requirements unresolved. Do not transfer property-specific answers or skips to another property. When the user is done or skips the remaining questions, summarize supported research routes and missing evidence without treating unknowns as a denial. For a fact-only lookup, answer the requested fact and offer relevant screening without requiring an unrelated intake. Owner answers do not verify eligibility, savings, authority, payment or filing readiness.
review
review_veteran_requirements
Continue a property-specific requirements conversation with accumulated explicit answers and, only when requested, the connected applicant's saved VA verification. Requires owner:va. Disclose va_source.verified_at and freshness; a saved snapshot is not a current provider check. Ask returned questions one at a time; accept unknown or skip, preserve explicit false, and never reuse property-specific answers for another property. No eligibility decision, savings, generated application or filing.
suggest
suggest_addresses
Search retained county-roll address candidates for partial queries and typos. If the intended property is ambiguous, show the relevant candidates and ask the user to select one before continuing with property-specific conclusions or actions. Similarity scores and is_auto_match are matching hints, not a user selection, verified owner authority or financial eligibility.
tax
get_tax_sandbox_order
Read your own isolated Untax test order. Requires owner:sandbox sign-in. Payment and draft delivery statuses are separate from production eligibility or county filing. Show the returned test checkout link when payment is pending. When an order_id is known, read the same order after checkout or an uncertain failure before retrying. If starting checkout fails before an order_id is returned, retry start_tax_sandbox with the original idempotency_key; do not create a new key for the same attempt. get_tax_sandbox_order and complete_tax_sandbox_order take only order_id. Report test payment, draft generation, download availability and external delivery as separate observed states. Do not claim the draft is available until the order confirms its artifact is available; a payment or download URL alone is not proof. A sandbox receipt or simulated submission is not county filing, external email delivery or permission for live payments.

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

analyze_parcel_reappraisal_surge
removed 25 Oct 2026
audit_combat_deployment_abatement
removed 25 Oct 2026
audit_commercial_reclassification
removed 25 Oct 2026
audit_county_dd214_recording
removed 25 Oct 2026
audit_disabled_homeowner_relief
removed 25 Oct 2026
audit_disabled_veteran_relief
removed 25 Oct 2026
audit_disabled_veteran_wheel_tax
removed 25 Oct 2026
audit_fema_flood_hazard
removed 25 Oct 2026
audit_municipal_permits
removed 25 Oct 2026
audit_noaa_storm_swaths
removed 25 Oct 2026
audit_parcel_blight_citations
removed 25 Oct 2026
audit_parcel_soil_capability
removed 25 Oct 2026
audit_parcel_topography
removed 25 Oct 2026
audit_portfolio_batch
removed 25 Oct 2026
audit_property_tax
removed 25 Oct 2026
audit_property_transfers
removed 25 Oct 2026
audit_retroactive_tax_recovery
removed 25 Oct 2026
audit_scra_interest_cap
removed 25 Oct 2026
audit_senior_tax_freeze
removed 25 Oct 2026
audit_square_footage_correction
removed 25 Oct 2026
audit_surviving_spouse_portability
removed 25 Oct 2026
audit_surviving_spouse_vet_relief
removed 25 Oct 2026
audit_va_award_document_with_jev
removed 25 Oct 2026
audit_va_funding_fee_refund
removed 25 Oct 2026
audit_veteran_living_trust_preservation
removed 25 Oct 2026
audit_veteran_sah_ada_exclusion
removed 25 Oct 2026
audit_veteran_shield
removed 25 Oct 2026
check_delinquent_taxes
removed 25 Oct 2026
check_eligibility
removed 25 Oct 2026
check_portfolio_address_status
removed 25 Oct 2026
check_veteran_relief
removed 25 Oct 2026
curate_portfolio_selection
removed 25 Oct 2026
discover_related_properties
removed 25 Oct 2026
forecast_truth_in_taxation_bill_shock
removed 25 Oct 2026
generate_sf180_request
removed 25 Oct 2026
generate_vso_referral
removed 25 Oct 2026
get_condition_evidence_catalog
removed 25 Oct 2026
get_hamilton_roll_analytics
removed 25 Oct 2026
get_jurisdiction_exemption_profile
removed 25 Oct 2026
get_knox_roll_analytics
removed 25 Oct 2026
get_property_model_readiness
removed 25 Oct 2026
get_representation_rules
removed 25 Oct 2026
get_roll_analytics
removed 25 Oct 2026
get_waitlist_analytics
removed 25 Oct 2026
gisdb_calculate_ground_scale
removed 25 Oct 2026
gisdb_create_checkout
removed 25 Oct 2026
gisdb_download_sample_bundle
removed 25 Oct 2026
gisdb_export_distress_feed
removed 25 Oct 2026
gisdb_get_cash_buyers
removed 25 Oct 2026
gisdb_get_metadata
removed 25 Oct 2026
gisdb_get_notice_dossier
removed 25 Oct 2026
gisdb_get_stacked_leads
removed 25 Oct 2026
gisdb_query_notices
removed 25 Oct 2026
gisdb_quote_enterprise
removed 25 Oct 2026
gisdb_redeem_download
removed 25 Oct 2026
gisdb_request_sample
removed 25 Oct 2026
gisdb_search_catalog
removed 25 Oct 2026
gisdb_subscribe_lead_feed
removed 25 Oct 2026
join_waitlist
removed 25 Oct 2026
lookup_property_tax
removed 25 Oct 2026
lookup_va_ogc_vso
removed 25 Oct 2026
parse_scra_dmdc_certificate
removed 25 Oct 2026
parse_va_benefit_letter
removed 25 Oct 2026
quote_address_change
removed 25 Oct 2026
run_veteran_pilot_flow
removed 25 Oct 2026
simulate_property_model
removed 25 Oct 2026
stage_portfolio_selection
removed 25 Oct 2026
suggest_property_condition_defects
removed 25 Oct 2026
verify_va_disability_exemption
removed 25 Oct 2026

Endpoints

URLTransportStateLatencyChecked
https://untax.io/mcp streamable-http answering 456 ms 1 min ago

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Untax — questions

Answers built from our own checks of this server.

What can Untax do?
It exposes 20 tools, read directly from the server on our last check. Among them: audit_microtransaction, complete_tax_sandbox_order, disconnect_va_connection, find_va_facilities, find_va_forms, generate_veteran_packet and 14 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
What is Untax mostly used for?
Its tools cluster around start and owner. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Untax working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 487 ms. The bar chart above shows every period we have measured.
Did Untax ever remove tools?
Yes. analyze_parcel_reappraisal_surge, audit_combat_deployment_abatement, audit_commercial_reclassification, audit_county_dd214_recording and 65 more are no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.
How do I connect Untax?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Untax need an API key?
No. Untax completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 20 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Untax?
It answers our handshake in 487 ms on average, which is faster than 27% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.