KokoCallMCP
NPM · KOKO-CALL-MCP · SCANNED SEP 20
Read-only MCP server for searching Japan government procurement bid information from the KKJ portal.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 104 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency48
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (Apache-2.0).Pass
- Actively maintained (last published 141 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability82
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 624 tokens (~89/item across 7 items; 4 tools + 3 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management93
- Stability observed for 28 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage87
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 54% of tool parameters carry a description.Partial
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the KokoCallMCP MCP server?
KokoCallMCP runs locally as an npm package, launched with npx -y koko-call-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · koko-call-mcp
claude mcp add sugukurukabe-koko-call -- npx -y koko-call-mcp
{
"mcpServers": {
"sugukurukabe-koko-call": {
"command": "npx",
"args": [
"-y",
"koko-call-mcp"
]
}
}
} {
"servers": {
"sugukurukabe-koko-call": {
"command": "npx",
"args": [
"-y",
"koko-call-mcp"
]
}
}
} codex mcp add sugukurukabe-koko-call -- npx -y koko-call-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"sugukurukabe-koko-call": {
"type": "local",
"command": [
"npx",
"-y",
"koko-call-mcp"
],
"enabled": true
}
}
} openclaw mcp add sugukurukabe-koko-call --command npx --arg -y --arg koko-call-mcp
mcp_servers:
sugukurukabe-koko-call:
command: "npx"
args: ["-y", "koko-call-mcp"] {
"McpServers": {
"sugukurukabe-koko-call": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"koko-call-mcp"
]
}
}
} assistant mcp add sugukurukabe-koko-call -t stdio -c npx -a -y koko-call-mcp
{
"mcpServers": {
"sugukurukabe-koko-call": {
"command": "npx",
"args": [
"-y",
"koko-call-mcp"
]
}
}
} Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 −3
- Stability: pass → 0.83 functional
- 16 Sept 26 +1
- Stability: 0.97 → pass security
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 −3
- Stability: pass → 0.80 functional
- 9 Sept 26 +1
- Stability: 0.97 → pass security
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Analysed npm/koko-call-mcp@0.2.0
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 104 packages
| Packages resolved | 104 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
get_bid_detail 官公需入札詳細 ~61
入札Keyから1件の詳細を取得する。添付資料は保存せず、公式サイトのURIのみ返す。
| Name | Type | Req | Description |
|---|---|---|---|
| bid_key | string | yes | search_bids または list_recent_bids が返した Key フィールド |
| Name | Type | Req | Description |
|---|---|---|---|
| attribution | object | yes | – |
| bids | array | yes | – |
| query | object | yes | – |
| returnedCount | integer | yes | – |
| searchHits | integer | yes | – |
No examples provided.
list_recent_bids 直近の官公需入札一覧 ~78
過去1日から30日間に公告された新着官公需入札を一覧する。毎朝の営業チェックや地域別の新着確認に使う。
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| days | integer | – | – |
| limit | integer | – | – |
| prefecture | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| attribution | object | yes | – |
| bids | array | yes | – |
| query | object | yes | – |
| returnedCount | integer | yes | – |
| searchHits | integer | yes | – |
No examples provided.
search_bids 官公需入札検索 ~304
日本全国の官公需入札情報を検索する。全文検索は query、件名だけの絞り込みは project_name、発注機関は organization_name を使う。公告日、入札開始日、開札日、納入期限日でも絞り込める。
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| certification | array | – | – |
| due_after | string | – | 入札開始日 YYYY-MM-DD 以降 |
| due_before | string | – | 入札開始日 YYYY-MM-DD 以前 |
| issued_after | string | – | 公告日 YYYY-MM-DD 以降 |
| issued_before | string | – | 公告日 YYYY-MM-DD 以前 |
| limit | integer | – | – |
| opening_after | string | – | 開札日 YYYY-MM-DD 以降 |
| opening_before | string | – | 開札日 YYYY-MM-DD 以前 |
| organization_name | string | – | – |
| period_end_after | string | – | 納入期限日 YYYY-MM-DD 以降 |
| period_end_before | string | – | 納入期限日 YYYY-MM-DD 以前 |
| prefecture | – | – | – |
| procedure_type | string | – | – |
| project_name | string | – | 件名で絞り込む場合に指定します。 |
| query | string | – | 自由記述キーワード。複数キーワードはAND結合で検索されます。 |
| Name | Type | Req | Description |
|---|---|---|---|
| attribution | object | yes | – |
| bids | array | yes | – |
| query | object | yes | – |
| returnedCount | integer | yes | – |
| searchHits | integer | yes | – |
No examples provided.
summarize_bids_by_org 発注機関別の入札傾向分析 ~88
発注機関名を指定して、カテゴリ別・公示種別別の入札傾向と直近案件を集計する。
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| organization_name | string | yes | 分析対象の発注機関名 |
| since | string | – | YYYY-MM-DD 以降。未指定なら過去1年。 |
| Name | Type | Req | Description |
|---|---|---|---|
| attribution | object | yes | – |
| categories | object | yes | – |
| organizationName | string | yes | – |
| procedureTypes | object | yes | – |
| recentProjects | array | yes | – |
| returnedCount | integer | yes | – |
| totalHits | integer | yes | – |
No examples provided.
What is the KokoCallMCP MCP server?
KokoCallMCP is an MCP server listed in the public MCP registry as io.github.sugukurukabe/koko-call. Read-only MCP server for searching Japan government procurement bid information from the KKJ portal. This page covers its npm package (koko-call-mcp).
Is the KokoCallMCP MCP server safe to use?
KokoCallMCP scores 84 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the KokoCallMCP MCP server expose?
KokoCallMCP exposes 4 tools: search_bids, list_recent_bids, get_bid_detail, summarize_bids_by_org. Their descriptions and schemas cost roughly 531 tokens of context every time the server is loaded.
Is the KokoCallMCP MCP server still maintained?
KokoCallMCP is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the KokoCallMCP MCP server under?
KokoCallMCP declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.