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fix: reduce default and minimum tokens limits and deprecate SSE #668

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merged 5 commits into from
Sep 5, 2025
Merged

fix: reduce default and minimum tokens limits and deprecate SSE #668

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d3c5a23
docs: remove SSE transport options
enesgules Sep 5, 2025
87306c8
fix: reduce default minimum token threshold from 10000 to 1000
enesgules Sep 5, 2025
8b6f952
feat: add Accept header for Gemini CLI config
enesgules Sep 5, 2025
d44bfaf
docs: add SSE protocol deprecation notice to README
enesgules Sep 5, 2025
02d87cf
refactor: update token limits and improve constant organization for d…
enesgules Sep 5, 2025
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35 changes: 9 additions & 26 deletions README.md
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,11 @@ Check out our [project addition guide](./docs/adding-projects.md) to learn how t
- Cursor, Claude Code, VSCode, Windsurf or another MCP Client
- Context7 API Key (Optional for higher rate limits) (Get yours by creating an account at [context7.com/dashboard](https://context7.com/dashboard))

> [!WARNING]
> **SSE Protocol Deprecation Notice**
>
> The Server-Sent Events (SSE) transport protocol is deprecated and its endpoint will be removed in upcoming releases. Please use HTTP or stdio transport methods instead.

<details>
<summary><b>Installing via Smithery</b></summary>

Expand Down Expand Up @@ -117,12 +122,6 @@ Run this command. See [Claude Code MCP docs](https://docs.anthropic.com/en/docs/
claude mcp add --transport http context7 https://mcp.context7.com/mcp --header "CONTEXT7_API_KEY: YOUR_API_KEY"
```

Or using SSE transport:

```sh
claude mcp add --transport sse context7 https://mcp.context7.com/sse --header "CONTEXT7_API_KEY: YOUR_API_KEY"
```

#### Claude Code Local Server Connection

```sh
Expand Down Expand Up @@ -335,7 +334,8 @@ See [Gemini CLI Configuration](https://google-gemini.github.io/gemini-cli/docs/t
"context7": {
"httpUrl": "https://mcp.context7.com/mcp",
"headers": {
"CONTEXT7_API_KEY": "YOUR_API_KEY"
"CONTEXT7_API_KEY": "YOUR_API_KEY",
"Accept": "application/json, text/event-stream"
}
}
}
Expand Down Expand Up @@ -757,7 +757,7 @@ Add this to your Visual Studio MCP config file (see the [Visual Studio docs](htt
"inputs": [],
"servers": {
"context7": {
"type": "sse",
"type": "http",
"url": "https://mcp.context7.com/mcp",
"headers": {
"CONTEXT7_API_KEY": "YOUR_API_KEY"
Expand Down Expand Up @@ -809,23 +809,6 @@ Add this to your Crush configuration file. See [Crush MCP docs](https://github.c
}
```

#### Crush Remote Server Connection (SSE)

```json
{
"$schema": "https://charm.land/crush.json",
"mcp": {
"context7": {
"type": "sse",
"url": "https://mcp.context7.com/sse",
"headers": {
"CONTEXT7_API_KEY": "YOUR_API_KEY"
}
}
}
}
```

#### Crush Local Server Connection

```json
Expand Down Expand Up @@ -992,7 +975,7 @@ Context7 MCP provides the following tools that LLMs can use:
- `get-library-docs`: Fetches documentation for a library using a Context7-compatible library ID.
- `context7CompatibleLibraryID` (required): Exact Context7-compatible library ID (e.g., `/mongodb/docs`, `/vercel/next.js`)
- `topic` (optional): Focus the docs on a specific topic (e.g., "routing", "hooks")
- `tokens` (optional, default 10000): Max number of tokens to return. Values less than the default value of 10000 are automatically increased to 10000.
- `tokens` (optional, default 5000): Max number of tokens to return. Values less than 1000 are automatically increased to 1000.

## 🛟 Tips

Expand Down
17 changes: 11 additions & 6 deletions src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -12,12 +12,17 @@ import { SSEServerTransport } from "@modelcontextprotocol/sdk/server/sse.js";
import { Command } from "commander";
import { IncomingMessage } from "http";

const DEFAULT_MINIMUM_TOKENS = 10000;
/** Minimum allowed tokens for documentation retrieval */
const MINIMUM_TOKENS = 1000;
/** Default tokens when none specified */
const DEFAULT_TOKENS = 5000;
/** Default HTTP server port */
const DEFAULT_PORT = 3000;

// Parse CLI arguments using commander
const program = new Command()
.option("--transport <stdio|http>", "transport type", "stdio")
.option("--port <number>", "port for HTTP transport", "3000")
.option("--port <number>", "port for HTTP transport", DEFAULT_PORT.toString())
.option("--api-key <key>", "API key for authentication")
.allowUnknownOption() // let MCP Inspector / other wrappers pass through extra flags
.parse(process.argv);
Expand Down Expand Up @@ -200,14 +205,14 @@ ${resultsText}`,
.describe("Topic to focus documentation on (e.g., 'hooks', 'routing')."),
tokens: z
.preprocess((val) => (typeof val === "string" ? Number(val) : val), z.number())
.transform((val) => (val < DEFAULT_MINIMUM_TOKENS ? DEFAULT_MINIMUM_TOKENS : val))
.transform((val) => (val < MINIMUM_TOKENS ? MINIMUM_TOKENS : val))
.optional()
.describe(
`Maximum number of tokens of documentation to retrieve (default: ${DEFAULT_MINIMUM_TOKENS}). Higher values provide more context but consume more tokens.`
`Maximum number of tokens of documentation to retrieve (default: ${DEFAULT_TOKENS}). Higher values provide more context but consume more tokens.`
),
},
},
async ({ context7CompatibleLibraryID, tokens = DEFAULT_MINIMUM_TOKENS, topic = "" }) => {
async ({ context7CompatibleLibraryID, tokens = DEFAULT_TOKENS, topic = "" }) => {
const fetchDocsResponse = await fetchLibraryDocumentation(
context7CompatibleLibraryID,
{
Expand Down Expand Up @@ -248,7 +253,7 @@ async function main() {

if (transportType === "http") {
// Get initial port from environment or use default
const initialPort = CLI_PORT ?? 3000;
const initialPort = CLI_PORT ?? DEFAULT_PORT;
// Keep track of which port we end up using
let actualPort = initialPort;
const httpServer = createServer(async (req, res) => {
Expand Down