Should my agent depend on the MCP server io.github.lonniev/taxsort-mcp?

Verdict: allow — rich-slow-solo — safe to depend on As of 2026-08-15T11:28:18Z: a dated observation with receipts, not a warranty.

taxsort mcp

io.github.lonniev/taxsort-mcp

TaxSort — Tollbooth-monetized MCP server for personal tax transaction classification

— the operator's own registry description reported

Publisher io.github.lonniev · first seen 2026-08-12 · endpoint https://taxsort-mcp.fastmcp.app/mcp

allow

verdict

rich-slow-solo

cluster

ok_tools

answers

tools served

Dependency rating derived

allow — rich-slow-solo — safe to depend on

Cluster rich-slow-solo · distinctiveness 0.895 (unusual). Every figure is a percentile or class within the 11,094-server census — see the whole spectrum.

Reach — can an agent get to it?

answersalive_tools

latency563 ms

vs populationslow

protocolcurrent

authopen

Use — can it use it?

tools86

vs populationhigh

capabilities6

harnessB

Trust — can it rely on it?

identitysolo

servers on its host1

verifiabilityunassessed

duplicate inventoryno

drift events0

answers trueno primary

🔏 Signed receipt rr_941cd443bc34f040a6306ae7 · ed25519 · key rs-rcpt-2026-08 — this rating is tamper-evident; an agent gets the full signature from check_server and can verify it against the published key.

Tools last seen

taxsort_account_statement taxsort_account_statement_infographic taxsort_adoption_status taxsort_apply_rules taxsort_ask_advisor taxsort_ask_tax_researcher taxsort_check_authority_balance taxsort_check_balance taxsort_check_payment taxsort_check_price taxsort_check_proof_status taxsort_check_unlock taxsort_clear_transactions taxsort_count_rule_matches taxsort_create_feedback_issue taxsort_create_session taxsort_create_share_token taxsort_delete_account_transactions taxsort_delete_classification taxsort_delete_coupon taxsort_delete_custom_category taxsort_delete_patron_credential taxsort_delete_rule taxsort_forget_coupon taxsort_forget_credentials taxsort_get_accounts taxsort_get_amount_neighbors taxsort_get_anthropic_key taxsort_get_api_usage_stats taxsort_get_custom_categories taxsort_get_github_token taxsort_get_import_stats taxsort_get_nostr_profile taxsort_get_notarization_proof taxsort_get_operator_onboarding_status taxsort_get_patron_credential_fields taxsort_get_patron_onboarding_status taxsort_get_pricing_model taxsort_get_rules taxsort_get_session taxsort_get_summary taxsort_get_transactions taxsort_get_transactions_paged taxsort_import_csv taxsort_list_canonical_identities taxsort_list_constraint_types taxsort_list_coupons taxsort_list_feedback_issues taxsort_list_my_coupons taxsort_list_notarizations taxsort_list_sessions taxsort_load_share_token taxsort_mint_coupon taxsort_notarize_ledger taxsort_oracle_about taxsort_oracle_get_tax_rate taxsort_oracle_how_to_join taxsort_oracle_lookup_member taxsort_oracle_network_advisory taxsort_publish_nostr_profile taxsort_purchase_credits taxsort_receive_credentials taxsort_receive_npub_proof taxsort_redeem_coupon taxsort_report_api_usage taxsort_report_issue taxsort_request_adoption taxsort_request_credential_channel taxsort_request_npub_proof taxsort_request_unlock taxsort_reset_classifications taxsort_reset_pricing_model taxsort_restore_credits taxsort_restore_neon_schema taxsort_save_classifications taxsort_save_custom_category taxsort_save_rule taxsort_service_status taxsort_session_heartbeat taxsort_session_status taxsort_set_account_type taxsort_set_pricing_model taxsort_update_coupon taxsort_update_operator_credential taxsort_update_patron_credential taxsort_verify_passphrase

Harness readiness observed

Can an agent's harness pick this tool and call it correctly? Graded on the three things an agent reads — name, description, typed parameters. Band B — usable, with rough edges.

legibility check	tools passing	ok
name is clear & specific	86/86	✓
has a description	86/86	✓
description is substantive	80/86	80/86
parameters are typed	86/86	✓
parameters are described	11/86	11/86

86 of 86 tools graded · 86 with a captured input schema. RS-008, Tier-1 — no domain knowledge, applies to any tool. “Alive” is not the same as “usable”.

Truth checks observed

Not in the Tier-2 trade lane, or not yet checked. Tier-2 re-derives a server's answers against published primary sources — see truth checks.

Protocol conformance observed

2025-06-18

protocol version

—

session model

3.2.3

server version taxsort-mcp

Capabilities: experimental extensions logging prompts resources tools

Drift

No confirmed drift on record. Baseline set 2026-08-14; changes appear here after human review.

History observed

Every probe we made, oldest → newest (2 shown, 2026-08-12 → 2026-08-14). Green answered · amber answered-but-walled · red no useful answer. A gap in our cadence is a gap in coverage, not evidence about the server.

changelog (1 events)

date	type	what changed
2026-08-12	outcome	first probe: ok_tools

raw probe records

probed (UTC)	outcome	http	ms	protocol
2026-08-14T19:59:44Z	ok_tools	200	563	2025-06-18
2026-08-12T05:34:57Z	ok_tools	200	294	2025-06-18

Watch or embed this verdict

Operators: put the live verdict in your README — it updates with every census, links back here, and is a dated observation, never a warranty:

[![Robin Saige verdict](https://robinsaige.com/badge/io.github.lonniev/taxsort-mcp.svg)](https://robinsaige.com/s/io.github.lonniev/taxsort-mcp)

Depend on it? Subscribe to its change feed — outcome changes and confirmed drift, no account needed. Building on it? The full dossier as JSON — verdict, rating, truth checks, history — stable enough to gate CI on.

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