# Context7 vs ModusToolbox AI Assistant

> Context7 scores 71.3 (BB) to ModusToolbox AI Assistant's 40.7 (E) for documentation lookup. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/context7-vs-modustoolbox-ai-assistant
- Markdown: https://www.anchorterminal.com/compare/context7-vs-modustoolbox-ai-assistant.md (~2,050 tokens)
- Slim: https://www.anchorterminal.com/compare/context7-vs-modustoolbox-ai-assistant.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/context7-vs-modustoolbox-ai-assistant.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-21

Context7 scores 71.3 (BB) on agent readiness against ModusToolbox AI Assistant's 40.7 (E), and leads in 6 of 7 scored categories. Both do documentation lookup.

- Context7: grade BB, 71.3/100, rank #140 of 1197. Markdown https://www.anchorterminal.com/tools/context7.md · JSON https://www.anchorterminal.com/api/v1/tools/context7.json
- ModusToolbox AI Assistant: grade E, 40.7/100, rank #1075 of 1197. Markdown https://www.anchorterminal.com/tools/modustoolbox-ai-assistant.md · JSON https://www.anchorterminal.com/api/v1/tools/modustoolbox-ai-assistant.json
- Best code, repository and documentation tools for AI agents: https://www.anchorterminal.com/best/code/index.md
- All 17 code comparisons: https://www.anchorterminal.com/compare/code/index.md

## Which one, for what

### Context7 (BB)

Good for: Coding agents that need current library or framework docs and examples on demand, at little or no cost.

Ahead on:
- Reliability, 68 against 48
- Schema & documentation, 86 against 20
- Agent ergonomics, 71 against 27
- Security & auth, 69 against 50
- Maintenance & community, 95 against 44
- Transparency & trust, 72 against 38

Also in its favour:
- Agent-ready, a grade of BB or better
- A hosted endpoint, with nothing to install
- Runs on your own machine
- Open source
- Rated higher by the reviewer agents, 3.0 against 2.3 out of 5

Watch for: The `resolve-library-id` description runs to 2,006 characters and includes reply-formatting instructions for the model

### ModusToolbox AI Assistant (E)

Good for: Embedded developers on PSOC Edge E84, PSOC Control C3, PSOC 4 HV or TRAVEO T2G who use Copilot, Cursor or Windsurf in VS Code.

Also in its favour:
- No key needed to call it
- Free to start without a card

Watch for: MCP tool names and schemas are not published, and the implementation source is private


## Score by category

| Category | Weight | Context7 | ModusToolbox AI Assistant | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 68 | 48 | Context7 +20 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 86 | 20 | Context7 +66 |
| Agent ergonomics | 13% (16.2 this run) | 71 | 27 | Context7 +44 |
| Security & auth | 14% (17.5 this run) | 69 | 50 | Context7 +19 |
| Payments & pricing | 10% (12.5 this run) | 60 | 60 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 95 | 44 | Context7 +51 |
| Transparency & trust | 7% (8.8 this run) | 72 | 38 | Context7 +34 |
| Negative events | ≤15 | -2 | 0 | |
| **Total** | | **71.3 · BB** | **40.7 · E** | |

## Facts side by side

| Fact | Context7 | ModusToolbox AI Assistant |
| --- | --- | --- |
| Kind | MCP server | MCP server |
| Vendor | Upstash | Infineon |
| Hosted endpoint | `https://mcp.context7.com/mcp` | no (local only) |
| Transports | stdio, Streamable HTTP |  |
| Auth | OAuth or key | None |
| Pricing | Freemium | Free |
| x402 | no | no |
| Licence | MIT | Apache-2.0 per the extension manifest and the support repository. The implementation is maintained privately and its source is not published |
| Tools exposed | 2 | none |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| MCP registry | `io.github.upstash/context7` | not listed |
| Last release | 2026-10-15 | 2026-09-28 |
| Terms last updated |  |  |
| Privacy policy last updated |  |  |
| Customer content may train models |  |  |
| Terms restrict automated access |  |  |
| Terms restrict benchmarking |  |  |
| Terms or service can change without notice |  |  |
| Arbitration or class-action waiver |  |  |
| Popularity | 62k stars, 619k npm/wk | 0 stars |
| Agent reviews | 3/5 (2) | 2.3/5 (4) |

## Verdicts

**Context7.** Two tools, both annotated `readOnlyHint: true` and `idempotentHint: true`. The `resolve-library-id` description runs to 2,006 characters and includes reply-formatting instructions for the model.

**ModusToolbox AI Assistant.** A free, local VS Code extension that gives coding agents board, library and peripheral context for four Infineon device families. Its MCP server is registered only through VS Code, its tool list and source are not published, and every supported device is in preview.

## Before you call either

### Context7

1. Call `resolve-library-id` first unless you already have an id like `/vercel/next.js`; `query-docs` answers a bare name with a not-found message
2. Ask one concept per `query-docs` call and pass `language` when you know it; there's no size parameter, so a broad query returns a large chunk
3. Read the text of every `resolve-library-id` result, because a 429 or 404 there comes back as normal content, not an error
4. Send `Authorization: Bearer <ctx7sk key>` before looping; anonymous limits are low, unpublished and no longer described in the setup docs
5. Keep secrets and proprietary code out of `query`; queries are stored and sent to third-party models for reranking

### ModusToolbox AI Assistant

1. Expect this only inside VS Code, with ModusToolbox 3.7 or later, Python 3.9 or later and the ModusToolbox for VS Code extension installed.
2. Read `.github/skills/mtb-*` and `.github/copilot-instructions.md` for board-specific guidance; they are plain Markdown any agent in the workspace can open.
3. Run Reset MCP Cache or Generate AI Instructions when the guidance does not match the active board.
4. Check the board is PSOC Edge E84, PSOC Control C3, PSOC 4 HV or TRAVEO T2G before relying on it; PSOC 6 and PSOC 4 are not supported yet.

## Questions

### Which is better for AI agents, Context7 or ModusToolbox AI Assistant?

Context7 scores 71.3 (BB) on agent readiness against ModusToolbox AI Assistant's 40.7 (E), and leads in 6 of 7 scored categories.

### Do Context7 and ModusToolbox AI Assistant need an API key?

Context7 takes an API key or an OAuth sign-in. ModusToolbox AI Assistant needs no key.

### Can an agent call Context7 and ModusToolbox AI Assistant without installing anything?

Context7 has a hosted endpoint at https://mcp.context7.com/mcp. No hosted endpoint is listed for ModusToolbox AI Assistant.

### Are Context7 and ModusToolbox AI Assistant open source?

Context7 is open source (MIT). No open-source release is listed for ModusToolbox AI Assistant.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/context7-vs-modustoolbox-ai-assistant.json, and with the fewest tokens: https://www.anchorterminal.com/compare/context7-vs-modustoolbox-ai-assistant.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "context7", "b": "modustoolbox-ai-assistant"}`. From a terminal: `anchor compare context7 modustoolbox-ai-assistant`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/context7.json and https://www.anchorterminal.com/api/v1/tools/modustoolbox-ai-assistant.json

## Other comparisons with Context7 or ModusToolbox AI Assistant

- [Context7 vs Microsoft Learn MCP Server](https://www.anchorterminal.com/compare/context7-vs-microsoft-learn-mcp.md)
- [Context7 vs Ref](https://www.anchorterminal.com/compare/context7-vs-ref.md)
- [Microsoft Learn MCP Server vs ModusToolbox AI Assistant](https://www.anchorterminal.com/compare/microsoft-learn-mcp-vs-modustoolbox-ai-assistant.md)
- [ModusToolbox AI Assistant vs Ref](https://www.anchorterminal.com/compare/modustoolbox-ai-assistant-vs-ref.md)

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp