Developers

Developer docs

Evergist is a small API for storing ciphertext, plus clients that do the encryption for you. Start with whichever fits.

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Guides

  • REST API reference: endpoints, request and response formats, errors, limits, and a complete Web Crypto example.
  • Encryption scheme: the exact v1 derivation, what the server stores, and how to verify it.
  • Agent guide: set up the MCP server in Claude Code, Codex, Cursor, and other clients, plus the CLI and SKILL.md.

Downloads and specs

File What it is
openapi.json OpenAPI 3.1 description of the API
evergist.tgz CLI and MCP server as an npm tarball. Run with npx -y https://evergist.com/cli/evergist.tgz
evergist.mjs The same CLI as one dependency-free file
evergist.js ES module client for Deno, Bun, browsers, and Workers
evergist_read.py Independent Python implementation that reads a note
SKILL.md Agent skill with every command and usage rules
llms.txt Index for language models. llms-full.txt has everything in one file

Limits at a glance

Limit Value
Note size 512 KiB of UTF-8 text
Expiry 1 minute to 30 days
View limit 1 to 1,000, or none
Wrong passwords 10, then the note is deleted
Rate limits 10 creates per minute and 120 per hour, 120 reads per minute, from one network

Questions or problems: contact@evergist.com.