Calypso Multimodal RAG MCP
NPM · @CALYPSOHQ/MULTIMODAL-RAG-MCP-SERVER · SCANNED SEP 20
Calypso multimodal RAG for grounded answers from docs, images, charts, and knowledge.
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 Security81
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects undici 5.29.0, a direct dependency. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 39 of 125 dependencies flagged as unhealthy (1 deprecated). 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 (MIT).Pass
- Actively maintained (last published 22 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability80
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 2709 tokens (~193/item across 14 items; 9 tools + 5 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management69
- Stability check failed: the tool surface changed between 2.1.0 and 3.0.0: 1 tool removals, 0 breaking changes, 3 additions. See how to fix → Fail
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (22% 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 9 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 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 Calypso Multimodal RAG MCP server?
Calypso Multimodal RAG MCP runs locally as an npm package, launched with npx -y @calypsohq/multimodal-rag-mcp-server. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @calypsohq/multimodal-rag-mcp-server
claude mcp add calypso-so-multimodal-rag-mcp-server -- npx -y @calypsohq/multimodal-rag-mcp-server
{
"mcpServers": {
"calypso-so-multimodal-rag-mcp-server": {
"command": "npx",
"args": [
"-y",
"@calypsohq/multimodal-rag-mcp-server"
]
}
}
} {
"servers": {
"calypso-so-multimodal-rag-mcp-server": {
"command": "npx",
"args": [
"-y",
"@calypsohq/multimodal-rag-mcp-server"
]
}
}
} codex mcp add calypso-so-multimodal-rag-mcp-server -- npx -y @calypsohq/multimodal-rag-mcp-server
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"calypso-so-multimodal-rag-mcp-server": {
"type": "local",
"command": [
"npx",
"-y",
"@calypsohq/multimodal-rag-mcp-server"
],
"enabled": true
}
}
} openclaw mcp add calypso-so-multimodal-rag-mcp-server --command npx --arg -y --arg @calypsohq/multimodal-rag-mcp-server
mcp_servers:
calypso-so-multimodal-rag-mcp-server:
command: "npx"
args: ["-y", "@calypsohq/multimodal-rag-mcp-server"] {
"McpServers": {
"calypso-so-multimodal-rag-mcp-server": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"@calypsohq/multimodal-rag-mcp-server"
]
}
}
} assistant mcp add calypso-so-multimodal-rag-mcp-server -t stdio -c npx -a -y @calypsohq/multimodal-rag-mcp-server
{
"mcpServers": {
"calypso-so-multimodal-rag-mcp-server": {
"command": "npx",
"args": [
"-y",
"@calypsohq/multimodal-rag-mcp-server"
]
}
}
} 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.
- 19 Sept 26 −2
No change was recorded against any check on this day. Stability & Change Management went from 86 to 66.
- 17 Sept 26 +12
No change was recorded against any check on this day. Stability & Change Management went from 0 to 82.
- 29 Aug 26 +5
- Known CVEs: unverified → fail ▼ security
- Dependency health: unverified → 0.86 ▲ functional
- 28 Aug 26 −5
- Known CVEs: fail → unverified ▼ security
- Stability: fail → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Schema quality: 167 → 193 ▼ functional
- Tool coverage: 29% → 22% ▼ functional
- Schema quality: 167 → 194 ▼ functional
- Dependency health: 0.86 → unverified ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: 100 → unverified ▼ functional
- Package version: 2.1.0 → 3.0.0 functional
- Package version: 2.1.0 → 2.3.1 functional
- 26 Aug 26 −2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17.
- 20 Aug 26 0
- CVE-2026-16729 affects this package: high ▼ security
- CVE-2026-15157 affects this package: high ▼ security
- CVE-2026-22036 affects this package: high ▼ security
- CVE-2026-1527 affects this package: high ▼ security
- CVE-2026-1525 affects this package: high ▼ security
- CVE-2026-1526 affects this package: high ▼ security
- CVE-2026-11525 affects this package: high ▼ security
- CVE-2026-9679 affects this package: high ▼ security
- CVE-2026-2229 affects this package: high ▼ security
- CVE-2026-6733 affects this package: high ▼ security
- CVE-2026-16728 affects this package: high ▼ security
- CVE-2026-12151 affects this package: high ▼ security
- Known CVEs: unverified → fail ▼ security
- Dependency health: unverified → 0.86 ▲ functional
- 19 Aug 26 0
- CVE-2026-16729 affects this package: high ▼ security
- CVE-2026-15157 affects this package: high ▼ security
- CVE-2026-22036 affects this package: high ▼ security
- CVE-2026-1527 affects this package: high ▼ security
- CVE-2026-1525 affects this package: high ▼ security
- CVE-2026-1526 affects this package: high ▼ security
- CVE-2026-11525 affects this package: high ▼ security
- CVE-2026-9679 affects this package: high ▼ security
- CVE-2026-2229 affects this package: high ▼ security
- CVE-2026-6733 affects this package: high ▼ security
- CVE-2026-16728 affects this package: high ▼ security
- CVE-2026-12151 affects this package: high ▼ security
- Known CVEs: pass → unverified ▼ security
- Stability: 0.77 → unverified ▼ security
- Stability: 0.77 → fail ▼ security
- Known CVEs: pass → fail ▼ security
- Schema quality: 1712 → 2010 ▼ functional
- Dependency health: 0.85 → unverified ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: 100 → unverified ▼ functional
- Schema quality: 1712 → 1446 ▲ functional
- First check of Tool coverage: 29 functional
- Package version: 1.0.37 → 2.1.0 functional
- Package version: 1.0.37 → 2.0.0 functional
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/@calypsohq/multimodal-rag-mcp-server@3.0.0
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 →
Vulnerabilities 12 findings
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-2mjp-6q6p-2qxm | CVE-2026-1525 | medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L | yes |
| GHSA-35p6-xmwp-9g52 | CVE-2026-6733 | low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N | yes |
| GHSA-4992-7rv2-5pvq | CVE-2026-1527 | medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N | yes |
| GHSA-8xcm-r25x-g524 | CVE-2026-16728 | medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | yes |
| GHSA-g8m3-5g58-fq7m | CVE-2026-11525 | low | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N | yes |
| GHSA-g9mf-h72j-4rw9 | CVE-2026-22036 | medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-m8rv-5g2x-5cg5 | CVE-2026-15157 | medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N | yes |
| GHSA-p88m-4jfj-68fv | CVE-2026-9679 | medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N | yes |
| GHSA-v3r7-h72x-cjcm | CVE-2026-16729 | medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N | yes |
| GHSA-v9p9-hfj2-hcw8 | CVE-2026-2229 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-vrm6-8vpv-qv8q | CVE-2026-1526 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-vxpw-j846-p89q | CVE-2026-12151 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 125 packages
| Packages resolved | 125 |
|---|---|
| Deprecated | 1 |
| Stale | 38 |
| 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 →
calypso-add-website ~338
[CALYPSO ADD WEBSITE] Ingests a website URL as bucket-scoped knowledge. One shot: the Calypso backend crawls the URL, generates the title, summary, and tags, persists the website as knowledge, and assigns it to the given buckets in the same call. The normalized URL is the create identity per team: a matching Idempotency-Key replays the existing website, and a collision without one is a typed `website_url_exists` conflict. Requires the `knowledge:website:create` capability (explicit-only) and a backend with POST /v1/knowledge/websites deployed.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | – | Convenience single bucket slug. Required unless bucketIds or bucketSlugs is provided. |
| bucketIds | array | – | Bucket ids to assign the website to. Required unless bucketSlugs or bucket is provided. |
| bucketSlugs | array | – | Bucket slugs to assign the website to. Required unless bucketIds or bucket is provided. |
| createMissingBuckets | boolean | – | If true, create missing bucket slugs before assignment. |
| idempotencyKey | string | – | Optional Idempotency-Key; replays return the existing website. |
| preferredLanguage | string | – | Preferred language for the generated title/summary/tags (e.g. 'en', 'es'). |
| tagsHint | string | – | Optional comma-separated hint for generated tags. |
| title | string | – | Optional title override for the generated analysis. |
| url | string | yes | Website URL to ingest. Normalized server-side; https:// is assumed when the scheme is missing. |
No output schema declared.
No examples provided.
calypso-agent ~370
[CALYPSO RAG AGENT] Sends each prompt directly to the Calypso agent using the full conversation context. Use this when you want Calypso knowledge retrieval and grounded answers from the RAG backend. Typical requests: - "Summarize the key points from our onboarding documentation" - "What does the knowledge base say about campaign approval rules?" - "Compare the documented indexing flow with the retrieval flow" - "Answer using the uploaded file ids: [\"file_123\"]" Responses API behavior: - First turns start a named Calypso conversation via `/v1/responses`. - Follow-up turns chain with `previous_response_id` so the backend owns conversation state. - When `fileIds` are provided, the MCP uses `rag_policy` retrieval semantics instead of inline attachment stuffing. MCP session behavior: - This tool maintains a stable conversation id in the background for multi-turn retrieval context. - Use `/new` to start a fresh conversation and clear the current context window. Quick commands (examples): - "Summarize the latest indexed knowledge about WhatsApp templates" - "Find the source of truth for campaign approval behavior" - "Start a new topic" (or use `/new`) The authoritative, refreshable variant list lives in the `calypso://rag-agent-models` resource — do not cache this description.
| Name | Type | Req | Description |
|---|---|---|---|
| fileIds | array | – | Optional uploaded agent-store `file_id` values to attach with `rag_policy` retrieval semantics. |
| model | string | – | Optional Calypso agent model variant. Defaults to `calypso-agent`. Read the calypso://rag-agent-models resource for the current list. |
| prompt | string | yes | Your request. Include context, constraints, and desired output. |
No output schema declared.
No examples provided.
calypso-create-agent ~229
[CALYPSO CREATE AGENT] Creates a Calypso agent variant bound to one or more buckets. The success payload leads with `model` — pass it straight to calypso-agent. Bucket bindings are validated server-side (`bucket_not_found` for unknown or archived buckets), agent ids are slug-normalized (`agent_id_exists` on collision), and the plan's agent cap is enforced (`agent_limit_reached` when full). Requires the `rag:agent:create` capability and a backend with POST /v1/rag-agent/agents deployed.
| Name | Type | Req | Description |
|---|---|---|---|
| agentId | string | – | Optional agent id; slug rules, server-normalized. |
| bucketIds | array | – | Bucket ids to bind. Provide bucketIds and/or bucketSlugs. |
| bucketSlugs | array | – | Bucket slugs to bind (resolved server-side). |
| idempotencyKey | string | – | Optional Idempotency-Key; replays return the existing agent. |
| instructions | string | – | Optional agent instructions. |
| name | string | – | Optional display name. |
| Name | Type | Req | Description |
|---|---|---|---|
| agent_id | string | – | – |
| model | string | – | – |
No examples provided.
calypso-create-bucket ~166
[CALYPSO CREATE BUCKET] Creates an empty bucket to upload files into later. Use this for the create-then-fill workflow; uploads can also create buckets implicitly via bucketSlugs + createMissingBuckets. The server normalizes the slug and returns 409 `bucket_slug_exists` on collision. Requires the `knowledge:bucket:create` capability on the API key and a backend with POST /v1/knowledge/buckets deployed.
| Name | Type | Req | Description |
|---|---|---|---|
| description | string | – | Optional description. |
| idempotencyKey | string | – | Optional Idempotency-Key; replays return the existing bucket. |
| name | string | yes | Human-readable bucket name. |
| slug | string | – | Optional slug; server-normalized. Collision -> bucket_slug_exists. |
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | – | – |
| name | string | – | – |
| slug | string | – | – |
| status | string | – | – |
No examples provided.
calypso-get-file ~146
[CALYPSO GET FILE] Fetches one knowledge file's metadata and indexing status by file id. Use this to resolve the opaque `fileIds` returned by calypso-list-buckets into filename, mime type, size, indexing status, and per-bucket sync state. Pass verify=true to also ask the provider (Gemini) for ground truth about the indexed document — slower, but authoritative when status looks stale.
| Name | Type | Req | Description |
|---|---|---|---|
| fileId | string | yes | Knowledge file id, e.g. from calypso-list-buckets fileIds. |
| verify | boolean | – | If true, verify against the provider (?verify=gemini). Slower. |
No output schema declared.
No examples provided.
calypso-list-buckets ~109
[CALYPSO LIST BUCKETS] Lists buckets for the team tied to the configured Calypso API key. Use this before uploads when you need bucket ids, slugs, names, member counts, or bucket-store readiness. This complements agent model discovery: model discovery shows which buckets are bound to each agent variant, while this tool lists all buckets for the API key team.
| Name | Type | Req | Description |
|---|---|---|---|
| includeArchived | boolean | – | If true, include archived buckets. Defaults to false. |
No output schema declared.
No examples provided.
calypso-search ~195
[CALYPSO SEARCH] Retrieval-only search over the team's grounded knowledge: returns the chunks and sources an agent answer would cite, without a synthesized answer. Use this when the caller wants raw evidence to reason over. Scope defaults to the default Calypso agent; pass `agent` for a named variant (calypso-agent:{agent_id}) or `buckets` (ids or slugs, up to 5) to search specific buckets directly — not both.
| Name | Type | Req | Description |
|---|---|---|---|
| agent | string | – | Agent model id whose retrieval scope to search (calypso-agent or calypso-agent:{agent_id}). Mutually exclusive with buckets. |
| buckets | array | – | Bucket ids or slugs to search directly. Mutually exclusive with agent. |
| maxResults | integer | – | Maximum results to return (1-20, default 10). |
| query | string | yes | The search query. |
No output schema declared.
No examples provided.
calypso-upload-file ~653
[CALYPSO UPLOAD FILE] Uploads a file into the durable bucket-backed knowledge store and indexing pipeline. Use this when you want a file indexed into the broader knowledge corpus instead of attached directly to a single RAG chat turn. This tool returns file and task metadata. A bucket destination is required: pass bucketIds, bucketSlugs, or bucket. Choose exactly one file source. Use `filePath` when this MCP server runs locally and can read the path, including Claude Desktop or Cursor configs that launch this package with npx. Use `contentBase64` for hosted or remote MCP clients, browser uploads, generated in-memory content, or remote sandbox files that this MCP process cannot read. Use `sourceUrl` for a public http(s) file URL — the Calypso backend fetches it directly (public hosts only, 25MB cap), so the bytes never pass through this MCP process; filename and content type are derived from the remote response. Do not base64-encode local files just to use this tool.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | – | Convenience single bucket slug for this upload. Required unless bucketIds or bucketSlugs is provided. |
| bucketIds | array | – | Existing knowledge bucket ids to assign this upload to. Required unless bucketSlugs or bucket is provided. |
| bucketSlugs | array | – | Knowledge bucket slugs to assign this upload to. Required unless bucketIds or bucket is provided. |
| contentBase64 | string | – | Inline file bytes as base64. Use when filePath is not possible, such as hosted or remote MCP servers, browser-provided files, generated content, or remote sandbox attachment paths that the MCP proces… |
| createMissingBuckets | boolean | – | If true, create missing bucket slugs before assignment. |
| filePath | string | – | Preferred for local MCP installs, including Claude Desktop and Cursor configs that run this package with a local command such as npx. Absolute or relative path readable by the machine running this MC… |
| filename | string | – | Display filename for the uploaded knowledge file. Required for filePath and contentBase64 sources; derived server-side for sourceUrl. |
| idempotencyKey | string | – | Optional idempotency key for durable upload retries. |
| metadata | object | – | Optional metadata object serialized onto the upload request. |
| mimeType | string | – | Content type for the uploaded knowledge file. Required for filePath and contentBase64 sources; derived server-side for sourceUrl. |
| sourceUrl | string | – | Public http(s) URL of a file to import. The backend fetches it behind its SSRF policy (public hosts only, 25MB cap) and queues indexing. Typed errors: url_fetch_blocked, url_fetch_failed (retryable),… |
| tags | array | – | Optional tags for knowledge-store organization. |
| title | string | – | Optional human-readable title stored with the knowledge file. |
| waitForIndexing | boolean | – | If true, wait until indexing reaches a terminal ready state before returning. |
No output schema declared.
No examples provided.
calypso-upload-files-batch ~385
[CALYPSO UPLOAD FILES BATCH] Uploads 1 to 100 files into the durable knowledge store and indexing queue in one request. Use this for bulk corpus ingestion. Shared bucket fields apply to every item unless an item provides its own bucket fields. The tool returns batch-level status and, when requested, polls until the batch reaches active, partially_active, partially_failed, failed, or timeout. A shared bucket destination is required unless every item provides its own bucket destination. Choose exactly one file source per item. Use `filePath` when this MCP server runs locally and can read each path, including Claude Desktop or Cursor configs that launch this package with npx. Use `contentBase64` for hosted or remote MCP clients, browser uploads, generated in-memory content, or remote sandbox files that this MCP process cannot read. Do not base64-encode local files just to use this tool.
| Name | Type | Req | Description |
|---|---|---|---|
| batchIdempotencyKey | string | – | Idempotency key used to derive the durable batch id. Auto-generated when omitted; pass your own stable key to make a retried call replay the same batch instead of creating a new one. |
| bucket | string | – | Convenience single bucket slug applied to all items by default. Required unless every item has a bucket destination. |
| bucketIds | array | – | Existing bucket ids applied to all items by default. Required unless every item has a bucket destination. |
| bucketSlugs | array | – | Bucket slugs applied to all items by default. Required unless every item has a bucket destination. |
| createMissingBuckets | boolean | – | If true, create missing shared bucket slugs before assignment. |
| items | array | yes | Knowledge files to upload in this batch. |
| waitForBatchReady | boolean | – | If true, poll batch status with include_items=true until terminal or timeout. |
No output schema declared.
No examples provided.
What is the Calypso Multimodal RAG MCP server?
Calypso Multimodal RAG MCP is listed in the public MCP registry as io.github.calypso-so/multimodal-rag-mcp-server. Calypso multimodal RAG for grounded answers from docs, images, charts, and knowledge. This page covers its npm package (@calypsohq/multimodal-rag-mcp-server).
Is the Calypso Multimodal RAG MCP server safe to use?
Calypso Multimodal RAG MCP scores 76 out of 100 on VerifyMCP. We recorded 12 known advisories against 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 Calypso Multimodal RAG MCP server expose?
Calypso Multimodal RAG MCP exposes 9 tools: calypso-search, calypso-list-buckets, calypso-get-file, calypso-create-bucket, calypso-create-agent, and 4 more. Their descriptions and schemas cost roughly 2,591 tokens of context every time the server is loaded.
Is the Calypso Multimodal RAG MCP server still maintained?
Calypso Multimodal RAG MCP 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 Calypso Multimodal RAG MCP server under?
Calypso Multimodal RAG MCP declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.