Context7
Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.
Description from the maker (original English)
Behavioral oracle for Rust crate APIs: runtime behavior, yank/advisory, deprecation, sig search
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
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Works in Claude on the web, desktop and mobile:
https://api.codeitall.dev/mcpRun this in your terminal
claude mcp add --transport http codeitall https://api.codeitall.dev/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"codeitall": {
"url": "https://api.codeitall.dev/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"codeitall": {
"type": "http",
"url": "https://api.codeitall.dev/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
https://api.codeitall.dev/mcpMenu names can differ slightly by plan and over time.
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These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
We have not read this server’s tool list yet; we check endpoints in rotation.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026
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We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
Not checked yet; we check endpoints in rotation
Not checked yet; we check endpoints in rotation
Not checked yet; we read the tool list when we check the endpoint
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
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It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
The GitHub repo last changed –, and the latest version (0.1.0) reached the registry 5 months ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
In the same category: Context7, Codebase Memory, Exa
Servers in the same category from other makers, sorted by stars.
Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.
Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.
Connect AI agents to Exa for web search, content fetching, and multi-step research.
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Version-pinned behavioral oracle for Rust package APIs, built for AI coding agents. Five deterministic tools backed by a Postgres substrate of 66,549,370 `pattern_records` and 107 successful probe runs across 7 task families (datetime, duration, base64, JSON strict-vs-permissive, JWT verify, AEAD encrypt/decrypt, constant-time compare).
Hosted, free, no signup: https://api.codeitall.dev
This repository is codeitall's public surface — the API reference,
OpenAPI spec, the "For AI Agents" page, and the per-family pages. The
ingest/indexer and server source are not redistributed; you consume
codeitall by querying the hosted API, not by running it yourself.
The differentiator from a docs RAG: the substrate captures runtime behavior (what a function actually does on a canonical input set, observed empirically), not just documentation (what it claims to do). It targets the documentation-vs-runtime gap — yank status, RustSec advisories, deprecation renames, and cross-implementation behavior tables.
| Tool | Use it for | ||
|---|---|---|---|
answer_api_question | Open-ended Rust API questions; routes deterministically (rule-based, no LLM) and falls back to bge-m3 cosine retrieval. | ||
signature_search | You know the signature shape (fn(&str) -> Result , _>); get ranked candidate functions + crate, downloads, yank status. | ||
behavior_lookup | A specific (crate, fn_name); get the probe-observation table verbatim — each row `(input, outcome=ok\ | err\ | panic, value_or_error)`. |
compare_implementations | A task category (e.g. "base64 crates"); get the side-by-side cross-implementation behavior table. | ||
find_modern_equivalent | A suspected-deprecated call; get the current canonical alternative + yank/advisory rows. |
No generative LLM sits between a request and its response. Every response is SQL + deterministic templating; the only model in the hot path is bge-m3, a deterministic text→vector embedder used for the cosine fallback (same input → same vector → same hits). This is a regression-pinned invariant.
# Mint a free anonymous key (no email, no signup):
curl -sX POST https://api.codeitall.dev/v1/keys \ -H 'content-type: application/json' -d '{}'
curl -sX POST https://api.codeitall.dev/v1/answer_api_question \ -H 'content-type: application/json' \ -d '{"question":"how do I parse a duration string in rust"}'
GET aliases exist for every tool (browse-only clients); signature_search also accepts a shape_b64 (base64url) parameter so URL re-encoding can't mangle type-signature characters.
https://api.codeitall.dev/mcp (Bearer key), or stdio for self-hosters.POST/GET /v1/ .openapi.json (live: https://api.codeitall.dev/openapi.json).for-ai-agents.html — positioning, tool list, key snippet (live: https://api.codeitall.dev/for-ai-agents.html).api-reference.html / api-reference.md — generated tool reference + scope/coverage.agents/ — one page per probe family.Free. Per-IP key issuance cap (10/day) and per-key quota (10,000/day). No paid tier, no email capture, no signup.