Sefaria Library
REMOTE · SEFARIA-MCP.SHIMONKOLODNY.WORKERS.DEV · SCANNED AUG 3
Access Sefaria's library of Jewish texts, commentaries, and learning schedules via MCP
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 9 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS not yet verified: we couldn't determine whether a plaintext access path exists. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability71
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 452 tokens (~50/item across 9 items; 9 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management27
- Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
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
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · sefaria-mcp.shimonkolodny.workers.dev
claude mcp add --transport http dev-workers-shimonkolodny-sefaria-mcp-sefaria https://sefaria-mcp.shimonkolodny.workers.dev/mcp
[mcp_servers.dev-workers-shimonkolodny-sefaria-mcp-sefaria] url = "https://sefaria-mcp.shimonkolodny.workers.dev/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"dev-workers-shimonkolodny-sefaria-mcp-sefaria": {
"type": "remote",
"url": "https://sefaria-mcp.shimonkolodny.workers.dev/mcp",
"enabled": true
}
}
} openclaw mcp add dev-workers-shimonkolodny-sefaria-mcp-sefaria --url https://sefaria-mcp.shimonkolodny.workers.dev/mcp --transport streamable-http
mcp_servers:
dev-workers-shimonkolodny-sefaria-mcp-sefaria:
url: "https://sefaria-mcp.shimonkolodny.workers.dev/mcp" {
"mcpServers": {
"dev-workers-shimonkolodny-sefaria-mcp-sefaria": {
"type": "http",
"url": "https://sefaria-mcp.shimonkolodny.workers.dev/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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.
- 3 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 31 Jul 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
- 30 Jul 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 28 Jul 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Jul 26 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 59
First indexed and scored.
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 3 Aug 2026 · Probed https://sefaria-mcp.shimonkolodny.workers.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=shimonkolodny.workers.dev | CN=YE2,O=Let's Encrypt,C=US | 22 Jun 2026 | 20 Sept 2026 | ECDSA 256 | ECDSA-SHA384 | 5bea02c9ad8739576116f81692abf7fd993 |
| SANs: *.shimonkolodny.workers.dev, shimonkolodny.workers.dev | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
DNSSEC insecure
Validation of sefaria-mcp.shimonkolodny.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://sefaria-mcp.shimonkolodny.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://sefaria-mcp.shimonkolodny.workers.dev/mcp | Inconclusive | 406 |
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.
get_calendars ~96
Returns daily learning schedules (Parashat Hashavua, Daf Yomi, etc.) for a specific date
| Name | Type | Req | Description |
|---|---|---|---|
| custom | number | — | Customization (1 for diaspora, 0 for Israel parasha scheme) |
| date | string | — | Date in YYYY-MM-DD format (defaults to today) |
| timezone | string | — | Timezone name (e.g., 'America/New_York', 'Asia/Jerusalem') |
No output schema declared.
No examples provided.
get_index ~56
Returns metadata for a specific text, such as section names and categories
| Name | Type | Req | Description |
|---|---|---|---|
| title | string | yes | The title of the text (e.g., 'Genesis') |
| v2 | boolean | — | Use v2 index for more detailed records |
No output schema declared.
No examples provided.
get_links ~57
Returns a list of known connections (commentary, citations, etc.) for a specific text segment
| Name | Type | Req | Description |
|---|---|---|---|
| ref | string | yes | The text reference to find links for |
| with_text | boolean | — | Include the text of the linked source |
No output schema declared.
No examples provided.
get_shape ~36
Returns the structure and section counts for a specific text reference
| Name | Type | Req | Description |
|---|---|---|---|
| ref | string | yes | The text reference (e.g., 'Genesis') |
No output schema declared.
No examples provided.
get_text ~69
Retrieve the text and metadata for a specific reference (e.g., 'Genesis.1.1' or 'Berakhot 2a')
| Name | Type | Req | Description |
|---|---|---|---|
| context | number | — | 0 to return just the specific text, 1 to include surrounding context |
| ref | string | yes | The citation reference |
No output schema declared.
No examples provided.
get_toc ~25
Returns the table of contents for all texts in the library, grouped by category
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_topics ~22
Returns a list of JSON objects containing metadata for topics in the database
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_versions ~37
Returns available text versions for a specific reference
| Name | Type | Req | Description |
|---|---|---|---|
| ref | string | yes | The text reference (e.g., 'Genesis.1.1') |
No output schema declared.
No examples provided.
search_texts ~54
Search the Sefaria library for a query string.
| Name | Type | Req | Description |
|---|---|---|---|
| query | string | yes | The search query |
| size | number | — | Number of results to return |
| type | string | — | Type of documents to search |
No output schema declared.
No examples provided.