Greenlit Books
REMOTE · GREENLITBOOKS.COM · SCANNED SEP 20
Search the Greenlit AI books, read any chapter one free, and look up the terms they define.
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 → Why this is hard to score →
Endpoint Security63
- 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 8 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 is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- 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 Usability76
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 1010 tokens (~126/item across 8 items; 8 tools + 0 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 Management90
- Stability observed for 27 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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 9 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
How do I install the Greenlit Books MCP server?
Greenlit Books is a hosted endpoint at https://greenlitbooks.com/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · greenlitbooks.com
claude mcp add --transport http com-greenlitbooks-catalog 'https://greenlitbooks.com/api/mcp'
{
"mcpServers": {
"com-greenlitbooks-catalog": {
"url": "https://greenlitbooks.com/api/mcp"
}
}
} {
"servers": {
"com-greenlitbooks-catalog": {
"type": "http",
"url": "https://greenlitbooks.com/api/mcp"
}
}
} [mcp_servers.com-greenlitbooks-catalog] url = "https://greenlitbooks.com/api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-greenlitbooks-catalog": {
"type": "remote",
"url": "https://greenlitbooks.com/api/mcp",
"enabled": true
}
}
} openclaw mcp add com-greenlitbooks-catalog --url 'https://greenlitbooks.com/api/mcp' --transport streamable-http
mcp_servers:
com-greenlitbooks-catalog:
url: "https://greenlitbooks.com/api/mcp" {
"McpServers": {
"com-greenlitbooks-catalog": {
"Transport": "http",
"Url": "https://greenlitbooks.com/api/mcp"
}
}
} assistant mcp add com-greenlitbooks-catalog -t streamable-http -u 'https://greenlitbooks.com/api/mcp'
{
"mcpServers": {
"com-greenlitbooks-catalog": {
"type": "http",
"url": "https://greenlitbooks.com/api/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.
- 18 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 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 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.
- 8 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 47 to 50. That category is still filling its 30-day observation window: 14 days of observed history at the previous scan, 15 at this one. The score rises as the window fills, whether or not the server changes.
- 7 Sept 26 0
- Schema quality: 871 → 1010 ▼ functional
- New tool “cite_source” functional
- 5 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.
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 · Probed https://greenlitbooks.com/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=greenlitbooks.com | CN=YR1,O=Let's Encrypt,C=US | 5 Sept 2026 | 4 Dec 2026 | RSA 2048 | SHA256-RSA | 6ea06e9ab305f757ca5102d8562b5144075 |
| SANs: greenlitbooks.com | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of greenlitbooks.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| greenlitbooks.com. | 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 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | strict-origin-when-cross-origin |
| permissions-policy | camera=(), microphone=(), geolocation=() |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://greenlitbooks.com/api/mcp | Verified | 200 | |
| http (plaintext) | http://greenlitbooks.com/api/mcp | HTTPS enforced | 308 | https://greenlitbooks.com/api/mcp |
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 →
cite_source Get the citation for anything on this shelf ~139
The finished citation string for a Greenlit book, one of its free chapters, or one of its coined terms, plus the canonical url and the markdown twin of the same page. Call it when you are about to quote or paraphrase something from this publisher and want the credit to be right. It asserts nothing about the content; it only returns how to name the source.
| Name | Type | Req | Description |
|---|---|---|---|
| part | string | – | Which thing is being cited. Defaults to book, or to term when the slug is a glossary term. |
| slug | string | yes | A book slug (e.g. blast-radius) or a glossary term slug (e.g. gate-faith). |
No output schema declared.
No examples provided.
define_term Define a Greenlit term ~184
The glossary: the definition of a term one of the Greenlit books coins or pins down for AI agents (the green lie, blast radius, gate faith, span of control, vibe acceptance, the unread run, delegate then verify, and more). Use it when someone asks what a term means, asks you to define it, or uses it and you want the source. Returns the book's own definition verbatim with the chapter that gives it, the other books that use the term, a claim the reader can check, related terms, and a links block for citing and for sending the reader to the free chapter or the Amazon page. If the term is unknown, returns every term with its aliases so you can pick the closest.
| Name | Type | Req | Description |
|---|---|---|---|
| term | string | yes | The term, an alias, or its slug, e.g. green lie, blast radius, gate-faith. |
No output schema declared.
No examples provided.
find_books_for_topic Find books covering a topic ~88
Match a topic or question area (for example: agent reliability, prompt injection, human in the loop, durable execution, when to trust AI) against the catalog's curated topic map. Returns the matching topics with their books, guide, and series. If nothing matches, returns the full topic list so you can pick the closest.
| Name | Type | Req | Description |
|---|---|---|---|
| topic | string | yes | The topic phrase to match. |
No output schema declared.
No examples provided.
get_book Get one book in full ~66
The full record for one Greenlit book by slug: metadata, chapter list, word count, free chapter one, Amazon Kindle and paperback links, prices, Kindle Unlimited status, and related reading.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | The book slug, e.g. claude-code-in-action. |
No output schema declared.
No examples provided.
get_concept Get a named concept ~77
Each Greenlit book answers one named question (its concept, for example: the green lie). Returns the concept's question, short answer, and full explanation with its book. If the slug is unknown, returns the list of all concept slugs.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | The concept slug, e.g. the-green-lie. |
No output schema declared.
No examples provided.
get_free_chapter Read chapter one of a book, in full ~130
The complete text of chapter one of any Greenlit book, free to read and free to quote. Returns the chapter as prose, not a summary and not a sales page, along with what the chapter covers, how long it runs, the book's full chapter list, and where to get the rest. Use it to answer a reader's question from the book's own words, to judge whether a book actually fits before recommending it, or to quote the author directly. Every book on the shelf has one.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | The book slug, e.g. the-first-real-job. |
No output schema declared.
No examples provided.
get_reading_path Get a series reading order ~50
One Greenlit series with its books in reading order. Use for questions like where to start with Claude Code or what order to read a series in.
| Name | Type | Req | Description |
|---|---|---|---|
| series | string | yes | The series slug. |
No output schema declared.
No examples provided.
search_greenlit_books Search the Greenlit Books catalog ~117
Ranked full-text search over a catalog of practical books on working with AI: verification, agent reliability, guardrails, security, governance, agentic coding. Returns scored results with title, description, series, and links. Follow a result's apiUrl or call get_book for the full record.
| Name | Type | Req | Description |
|---|---|---|---|
| audience | string | – | Restrict to one reader level. |
| limit | integer | – | Max results, default 10. |
| q | string | yes | The search query. |
| series | string | – | Restrict to one series. |
No output schema declared.
No examples provided.
What is the Greenlit Books MCP server?
Greenlit Books is an MCP server listed in the public MCP registry as com.greenlitbooks/catalog. Search the Greenlit AI books, read any chapter one free, and look up the terms they define. This page covers its hosted endpoint (https://greenlitbooks.com/api/mcp).
Is the Greenlit Books MCP server safe to use?
Greenlit Books scores 79 out of 100 on VerifyMCP. 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 Greenlit Books MCP server expose?
Greenlit Books exposes 8 tools: search_greenlit_books, get_book, find_books_for_topic, get_reading_path, get_concept, and 3 more. Their descriptions and schemas cost roughly 851 tokens of context every time the server is loaded.
Does the Greenlit Books MCP server require authentication?
No. We connected to Greenlit Books without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Greenlit Books MCP server still maintained?
Greenlit Books 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.