MCP server for advanced web search using Tavily
Nothing to run from here
The Durability Curve is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
4
tools declared
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trust score
remote
at its publisher
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calls last 7d
What it does
Search The Durability Curve: essays, claim ledgers, weekly calls, its five laws and free tools.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http the-durability-curve-mcp https://mcp.durabilitycurve.com/mcp
# 2 — ask your agent for something these tools do
# search, get_essay, get_claim_ledger and 1 more
The Durability Curve costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Publishernot claimed
DUAll 1 server
durabilitycurve1 server
1 category
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
Claude Codedeclared by this listing
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http the-durability-curve-mcp https://mcp.durabilitycurve.com/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
Free on mcprush, and it answers at its publisher’s own address: this marketplace is not in the path, so there is no key of ours to hold and no card to add.
What it writes
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
What you approve
4 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Search or list the public archive of The Durability Curve: essays on which kinds of work keep their value as AI gets cheaper, the checked claims in each essay's claim ledger, the dated calls printed in The Durability Curve Weekly, the five laws and two derived principles the essays are tested against, and the free tools. With a query, returns ranked matches, each with its kind (essay, claim, call,
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | no | What to look for, in plain words, e.g. "agent reliability", "memory chip deposits" or a call ID like "W02-5". Leave empty to LIST instead (newest first), with the filters below. |
| limit | integer | no | How many results to return, 1 to 25. Default 5. |
| kind | string | no | Only this kind of result: essay, claim, call, law (the framework's laws and principles) or tool (the free tools). A list (empty query) defaults to essays. |
| series | string | no | Only essays (and their claims) in this series, e.g. "The Blueprint". Case does not matter. |
| has_ledger | boolean | no | true: only essays that have a claim ledger. false: only essays without one. |
| sort | string | no | relevance (default for a query) or newest. A list is always newest first. |
Get the full public text of one Durability Curve essay as markdown. Its metadata carries the title, date and canonical field, and a link to the essay's claim ledger when it has one. For a paid essay only the free part is public, and the text says where it stops. When citing, link the canonical field in the response metadata. These tools retrieve The Durability Curve's public material. They do not
| Parameter | Type | Required | Notes |
|---|---|---|---|
| slug | string | yes | The essay's site or Substack slug (case-insensitive), or its full durabilitycurve.com/blog/ or harryfloyd.substack.com/p/ URL. |
Get the claim ledger for one essay: each load-bearing claim it makes, the source it was checked against, the quoted words, where in the source they appear, the date the source was read, and a status saying how the claim was checked. The response defines every status. Claims removed during checking are listed separately under "struck", with the reason; they are not claims the essay makes. Only some
| Parameter | Type | Required | Notes |
|---|---|---|---|
| slug | string | yes | The essay's site or Substack slug (case-insensitive), or its full durabilitycurve.com/blog/ or harryfloyd.substack.com/p/ URL. |
Get the calls printed in The Durability Curve Weekly: dated, checkable predictions, each with the confidence printed at the time and the date or event it resolves on. The wording is exactly as printed and never changes after publication. outcome is null until a call resolves. These tools retrieve The Durability Curve's public material. They do not certify that any claim is true.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| status | string | no | open, resolved or all (default). |
| resolves_before | string | no | YYYY-MM-DD. Only calls whose latest resolution date is before this day, earliest first. A call that resolves on an event "or" a date counts by that date. |
Free
$0 forever
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install The Durability Curve or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
—
Alert at 80% · then the tool returns a normal MCP error
Used this month: —
—Grade not published
No rule-by-rule report on file for this release
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither. So there is no grade — not a withheld one, an unmeasured one.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 0.3.0.
0.3.0
undated
latestNo release note was published with this version.
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no reviews yet
Who can review
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Sign in to write one
Any signed-in account that does not publish The Durability Curve can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
No reviews yet
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.