The Durability Curve
Essays, claim ledgers, weekly calls and laws, plus AI model release dates, prices and free plans.
| Endpoint | https://mcp.durabilitycurve.com/mcp/c/registry (streamable-http) |
|---|---|
| Registry version | 0.4.1 |
| Now | 6 tools · grade A (98) · pin ts_5775079b7b28e618b208243e4004fcdb · protocol 2025-06-18 |
| First / last listed | 2026-10-27 07:24 UTC / 2026-10-27 07:24 UTC |
| Grade over time | 2026-10-27: A (98), 6 tools |
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Tools: search get_essay get_claim_ledger get_weekly_calls get_ai_models related_to
search | 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, the free tools, and AI model releases. With a query, returns ranked matches, each with its kind ( params: query, limit, kind, series, has_ledger, access, sort |
get_essay | Get one Durability Curve essay: by default its full public text as markdown, with its title, dates, canonical field, access, length, sections, tools and a link to its claim ledger when it has one. A long essay can be read in parts: part "outline" lists the sections with their opening lines, part "section" returns one, and part "meta" returns everything but the text. For a part-paid essay only the params: slug*, part, section |
get_claim_ledger | 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. Filter by claim ids or status, or ask for compact rows. Claims removed during checking are listed separately under "struck", with th params: slug*, ids, status, compact |
get_weekly_calls | 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. Filter by status, ID, issue, resolution date or printed confidence. The wording is exactly as printed and never changes after publication. outcome is null until a call resolves. counts describe the calls returned; record describes ev params: status, id, issue, resolves_before, resolves_after, confidence_at_most, confidence_at_least |
get_ai_models | Get The Durability Curve's record of AI model releases from ten labs (OpenAI, Anthropic, Google, DeepSeek, Meta, xAI, Mistral, Alibaba, Moonshot, Zhipu): when each model came out, with the lab's own announcement as source; for models with a page, the API list prices read at the lab's pricing page on a stated day; for the frontier launches the Access Gap tracks, when ordinary people could first use params: query, lab, released_after, released_before, frontier_only, on_free_plan, limit |
related_to | Compare a passage of text (an article, a headline, a draft, a question) with the whole archive and return what The Durability Curve has already published on it, grouped: essays, ledger claims, weekly calls, laws, free tools and AI models. Each result carries its URL and a share: how much of the passage's distinctive vocabulary it uses. possible_repeat is true when an essay (with its best ledger ro params: text*, per_kind |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.