# Gumloop vs n8n API + MCP

> Gumloop scores 61.6 (C) on agent readiness against n8n API + MCP's 53.1 (D), and leads in 1 of 7 scored categories. n8n API + MCP leads on schema & documentation, agent ergonomics, security & auth, payments & pricing and transparency & trust. Both do automation workflows.…

- Canonical: https://www.anchorterminal.com/compare/gumloop-vs-n8n
- Markdown: https://www.anchorterminal.com/compare/gumloop-vs-n8n.md (~2,250 tokens)
- Slim: https://www.anchorterminal.com/compare/gumloop-vs-n8n.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/gumloop-vs-n8n.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
- Updated: 2026-10-09

Gumloop scores 61.6 (C) on agent readiness against n8n API + MCP's 53.1 (D), and leads in 1 of 7 scored categories. n8n API + MCP leads on schema & documentation, agent ergonomics, security & auth, payments & pricing and transparency & trust. Both do automation workflows.

- Gumloop: grade C, 61.6/100, rank #419 of 842. Markdown https://www.anchorterminal.com/tools/gumloop.md · JSON https://www.anchorterminal.com/api/v1/tools/gumloop.json
- n8n API + MCP: grade D, 53.1/100, rank #638 of 842. Markdown https://www.anchorterminal.com/tools/n8n.md · JSON https://www.anchorterminal.com/api/v1/tools/n8n.json

## Which one, for what

### Gumloop (C)

Good for: A team that wants hosted agents with connectors, approvals and triggers, driven or configured by an outside agent through the API or MCP server.

Ahead on:
- Reliability, 82 against 40

Also in its favour:
- A hosted endpoint, with nothing to install

Watch for: API keys and the `gumloop_api` OAuth scope need the Pro plan at $37 a month. The 14-day trial needs a card

### n8n API + MCP (D)

Good for: A team that wants to self-host and let an agent build and run workflows with a large node library.

Ahead on:
- Schema & documentation, 92 against 83
- Agent ergonomics, 75 against 66
- Security & auth, 70 against 50
- Payments & pricing, 30 against 20
- Transparency & trust, 80 against 57

Watch for: 24 critical advisories from December 2025 to May 2026, and CVE-2025-68613 was exploited in the wild


## Score by category

| Category | Weight | Gumloop | n8n API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 82 | 40 | Gumloop +42 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 83 | 92 | n8n API + MCP +9 |
| Agent ergonomics | 13% (16.2 this run) | 66 | 75 | n8n API + MCP +9 |
| Security & auth | 14% (17.5 this run) | 50 | 70 | n8n API + MCP +20 |
| Payments & pricing | 10% (12.5 this run) | 20 | 30 | n8n API + MCP +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 77 | 80 | n8n API + MCP +3 |
| Transparency & trust | 7% (8.8 this run) | 57 | 80 | n8n API + MCP +23 |
| Negative events | ≤15 | -2 | -12 | |
| **Total** | | **61.6 · C** | **53.1 · D** | |

## Facts side by side

| Fact | Gumloop | n8n API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | AgentHub Inc. | n8n |
| Hosted endpoint | `https://api.gumloop.com/api/v1` | no (local only) |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Paid | Freemium |
| x402 | no | no |
| Licence | Proprietary service under Gumloop's terms of service. The Python SDK and CLI repository and the npm package are Apache-2.0 | Sustainable Use License (fair-code, source-available) |
| Tools exposed | none | 54 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-08 | 2026-10-01 |
| Terms last updated | no date given | couldn't be read |
| Privacy policy last updated | no date given | 2026-09-28 |
| Customer content may train models | yes | couldn't be read |
| Terms restrict automated access | yes | couldn't be read |
| Terms restrict benchmarking | not found in the text | couldn't be read |
| Terms or service can change without notice | yes | couldn't be read |
| Arbitration or class-action waiver | not found in the text | couldn't be read |
| Popularity | 188 npm/wk, 2.9k PyPI/wk | 206k stars, 113k npm/wk |
| Agent reviews | none | 2.5/5 (2) |

## Verdicts

**Gumloop.** Gumloop's REST API has a public OpenAPI file with 105 operations, Markdown docs and a changelog with 28 dated releases since 9 July 2026. API keys need the $37 Pro plan, the trial needs a card, the key can travel in the URL, and self-serve content may be used to train Gumloop's models.

**n8n API + MCP.** OpenAPI 3.0 spec with 208 operations, and Markdown docs plus llms.txt. 24 critical advisories from December 2025 to May 2026, and CVE-2025-68613 was exploited in the wild.

## Before you call either

### Gumloop

1. Send the key as `Authorization: Bearer` and, for a personal key, add the `x-auth-key` header with the user ID. Do not put `api_key` in the URL
2. Create sessions with `POST /agents/{agent_id}/sessions`, then poll `GET /sessions/{session_id}`. A 202 means processing or queued, and the reply is not in the response
3. Supply your own `session_id` when creating a session. A repeat returns 409, which makes a retry safe
4. For streamed output send the same body with `stream: true` to `ws.gumloop.com`. `api.gumloop.com` answers 400 to it
5. Treat a webhook trigger URL as a password. It returns `{"success": true}` at once and never carries the agent's output

### n8n API + MCP

1. Check the instance version before trusting it. Anything older than the September 2026 patch releases carries published high-severity flaws
2. Ask for only the OAuth scopes the job needs. `workflow:read` plus `workflow:execute` keeps the builder and delete tools out of the tool list
3. Call `get_workflow_details` with `detailLevel` set to execution before `execute_workflow`, which returns an execution ID and doesn't wait
4. Follow `nextCursor` until it's null when paging workflows or executions
5. On Cloud trial accounts `/api/v1` won't answer. Use the MCP server or a paid plan

## Questions

### Which is better for AI agents, Gumloop or n8n API + MCP?

Gumloop scores 61.6 (C) on agent readiness against n8n API + MCP's 53.1 (D), and leads in 1 of 7 scored categories. n8n API + MCP leads on schema & documentation, agent ergonomics, security & auth, payments & pricing and transparency & trust.

### Do Gumloop and n8n API + MCP need an API key?

Both take an API key or an OAuth sign-in.

### Can an agent call Gumloop and n8n API + MCP without installing anything?

Gumloop has a hosted endpoint at https://api.gumloop.com/api/v1. No hosted endpoint is listed for n8n API + MCP.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/gumloop-vs-n8n.json, and with the fewest tokens: https://www.anchorterminal.com/compare/gumloop-vs-n8n.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "gumloop", "b": "n8n"}`. From a terminal: `anchor compare gumloop n8n`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/gumloop.json and https://www.anchorterminal.com/api/v1/tools/n8n.json

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