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

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

personalbrain mcp

io.github.lonniev/personalbrain-mcp

FastMCP server for TheBrain API — AI access to a personal knowledge graph, Tollbooth-monetized

— the operator's own registry description reported

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

allow

verdict

rich-solo

cluster

ok_tools

answers

tools served

Dependency rating derived

allow — rich-solo — safe to depend on

Cluster rich-solo · distinctiveness 0.721 (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

latency132 ms

vs populationtypical

protocolcurrent

authopen

Use — can it use it?

tools82

vs populationhigh

capabilities6

harnessA

Trust — can it rely on it?

identitysolo

servers on its host1

verifiabilityunassessed

duplicate inventoryno

drift events0

answers trueno primary

🔏 Signed receipt rr_f37a058b8ccca82b8692466f · 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

brain_account_statement brain_account_statement_infographic brain_add_file_attachment brain_add_url_attachment brain_adoption_status brain_append_to_note brain_brain_query brain_check_authority_balance brain_check_balance brain_check_payment brain_check_price brain_check_proof_status brain_create_link brain_create_or_update_note brain_create_thought brain_delete_attachment brain_delete_coupon brain_delete_link brain_delete_patron_credential brain_delete_thought brain_event_for_person brain_forget_coupon brain_forget_credentials brain_get_attachment brain_get_attachment_content brain_get_brain brain_get_brain_stats brain_get_link brain_get_modifications brain_get_nostr_profile brain_get_notarization_proof brain_get_note brain_get_operator_onboarding_status brain_get_patron_credential_fields brain_get_patron_onboarding_status brain_get_pricing_model brain_get_tags brain_get_thought brain_get_thought_by_name brain_get_thought_graph brain_get_thought_graph_paginated brain_get_types brain_list_attachments brain_list_brains brain_list_canonical_identities brain_list_constraint_types brain_list_coupons brain_list_my_coupons brain_list_notarizations brain_mint_coupon brain_morph_thought brain_notarize_ledger brain_oracle_about brain_oracle_get_tax_rate brain_oracle_how_to_join brain_oracle_lookup_member brain_oracle_network_advisory brain_publish_nostr_profile brain_purchase_credits brain_receive_credentials brain_receive_npub_proof brain_receive_patron_credentials brain_redeem_coupon brain_report_issue brain_request_adoption brain_request_credential_channel brain_request_npub_proof brain_request_patron_credentials brain_reset_pricing_model brain_restore_credits brain_restore_neon_schema brain_scan_orphans brain_search_thoughts brain_service_status brain_session_status brain_set_active_brain brain_set_pricing_model brain_update_coupon brain_update_link brain_update_operator_credential brain_update_patron_credential brain_update_thought

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 A — an agent can pick and call these reliably.

legibility check	tools passing	ok
name is clear & specific	82/82	✓
has a description	82/82	✓
description is substantive	81/82	81/82
parameters are typed	82/82	✓
parameters are described	34/82	34/82

82 of 82 tools graded · 82 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

3.4.6

server version thebrain-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	132	2025-06-18
2026-08-12T05:34:57Z	ok_tools	200	826	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/personalbrain-mcp.svg)](https://robinsaige.com/s/io.github.lonniev/personalbrain-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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