Robin Saige we check the tools AI agents call

mcp server

io.github.tickerbot/mcp-server

The stock market, in SQL — scan, replay, or subscribe across ~12k US tickers and top 100 cryptos.

— the operator's own registry description reported

Publisher io.github.tickerbot · first seen 2026-08-12 · endpoint https://api.tickerbot.io/mcp

allow
verdict
stale-rich-solo
cluster
ok_tools
answers
35
tools served

Dependency rating derived

allow
allow — alive & usable · action ● · V n/a
allow — because answers ●, 35 tools legible (band A) ●, no confirmed drift in 3 probes ●; not yet checked: truth (1 attempts unverifiable, 0 disagreements)

Cluster stale-rich-solo · distinctiveness 0.338 (typical). Every figure is a percentile or class within the 11,363-server censussee the whole spectrum.

Does it answer? Q1 · observed
answersalive_tools
latency249 ms
vs populationtypical
protocolstale
authopen
Can it be used? Q4 · observed
tools35
vs populationhigh
capabilities1
harnessA
Did it hold when checked? Q3–Q4 · derived
identitysolo
servers on its host1
verifiabilityunassessed
duplicate inventoryno
drift events0
answers true0/0 agree

🔏 Signed receipt rr_9f97c9be9d8b0d3ac38660d4 · 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.

Q1Does it answer?alive & usable — 3 probes ●evidence ↓
Q2What is it?action ● evidence ↓
Q3Can it be checked?V n/a for this kind ◐evidence ↓
Q4Did it hold?harness A · truth not yet run · no drift ●evidence ↓
Q5What company does it keep?stale-rich-solo · 1 on its host (context, not verdict) ◐evidence ↓

● observed · ◐ derived · ○ reported — the verdict synthesizes Q1–Q4; Q5 is context. Methodology →

History observed

Every probe we made, oldest → newest (3 shown, 2026-08-12 → 2026-08-16). 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)
datetypewhat changed
2026-08-12outcomefirst probe: ok_tools

What kind of tools these are derived

Verification only means something relative to a tool's NATURE — an email-sender has no "true answer", a generator has no answer key. Classification evidence: classified from tool names/descriptions/annotations WE OBSERVED. What checking applies to each kind (the full methodology →):

naturetoolsmeaning what checking applies
action21changes the worldno true answer exists; we check the CONTRACT (destructive/read-only/idempotent declarations, error legibility) and never fire real actions
retrieval-public13serves public factstruth-checkable against a public source — the V-ladder applies in full
unclassified1not classifiable from its textTier-1 only until its tools describe themselves

Tools last seen observed

tickerbot_create_custom_signal tickerbot_create_universe tickerbot_create_webhook tickerbot_delete_custom_signal tickerbot_delete_universe tickerbot_delete_webhook tickerbot_enable_webhook tickerbot_get_series tickerbot_get_signals_match tickerbot_get_ticker tickerbot_get_ticker_bars tickerbot_get_ticker_coverage tickerbot_get_ticker_history tickerbot_get_ticker_holdings tickerbot_get_ticker_sectors tickerbot_get_universe tickerbot_get_webhook tickerbot_list_events tickerbot_list_signal_events tickerbot_list_signals_catalog tickerbot_list_system_universes tickerbot_list_tickers tickerbot_list_universes tickerbot_list_webhook_deliveries tickerbot_list_webhooks tickerbot_patch_webhook tickerbot_scan tickerbot_search_news tickerbot_subscribe_events tickerbot_subscribe_scan tickerbot_subscribe_signal tickerbot_subscribe_ticker tickerbot_test_webhook tickerbot_update_custom_signal tickerbot_update_universe

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 checktools passingok
name is clear & specific35/35
has a description35/35
description is substantive35/35
parameters are typed35/35
parameters are described35/35

35 of 35 tools graded · 35 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 yet confirmed — 1 attempt(s) currently unverifiable (rate limits, walls, or unmappable schemas — never counted against the server) · 0 disagreements.

claim classkeyverdictprimary source
tariff-dutyunmappedunverifiableus-hts

Protocol conformance observed

2024-11-05
protocol version
session model
0.2.0
server version @tickerbot/mcp-server

Capabilities: tools

Drift observed

No confirmed drift on record. Baseline set 2026-08-16; changes appear here after human review.

raw probe records
probed (UTC) outcomehttpmsprotocol
2026-08-16T06:13:50Zok_tools2002492024-11-05
2026-08-14T20:00:16Zok_tools2002312024-11-05
2026-08-12T05:35:28Zok_tools2003932024-11-05

Watch or embed this verdict

verdict badge

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.tickerbot/mcp-server.svg)](https://robinsaige.com/s/io.github.tickerbot/mcp-server)

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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Operator of this server? Everything we hold about it is on this page — free, no account, for anyone. Wrong attribution, stale probe, misclassification? Dispute this record →