# Gumloop vs Microsoft Power Automate

> Microsoft Power Automate and Gumloop score within a point of each other on agent readiness, 62 (B) and 61.6 (C). Gumloop leads on reliability and schema & documentation. Both do automation workflows. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/gumloop-vs-power-automate
- Markdown: https://www.anchorterminal.com/compare/gumloop-vs-power-automate.md (~2,350 tokens)
- Slim: https://www.anchorterminal.com/compare/gumloop-vs-power-automate.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/gumloop-vs-power-automate.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

Microsoft Power Automate and Gumloop score within a point of each other on agent readiness, 62 (B) and 61.6 (C). Gumloop leads on reliability and schema & documentation. 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
- Microsoft Power Automate: grade B, 62/100, rank #405 of 842. Markdown https://www.anchorterminal.com/tools/power-automate.md · JSON https://www.anchorterminal.com/api/v1/tools/power-automate.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 63
- Schema & documentation, 83 against 68

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

### Microsoft Power Automate (B)

Good for: Organisations already on Microsoft 365 and Dataverse that want an agent to inventory, deploy or adjust flows inside existing roles and solutions.

Ahead on:
- Security & auth, 61 against 50
- Payments & pricing, 25 against 20
- Transparency & trust, 76 against 57

Watch for: Flows under My flows can't be managed in code, and Microsoft calls the `api.flow.microsoft.com` API unsupported


## Score by category

| Category | Weight | Gumloop | Microsoft Power Automate | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 82 | 63 | Gumloop +19 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 83 | 68 | Gumloop +15 |
| Agent ergonomics | 13% (16.2 this run) | 66 | 69 | Microsoft Power Automate +3 |
| Security & auth | 14% (17.5 this run) | 50 | 61 | Microsoft Power Automate +11 |
| Payments & pricing | 10% (12.5 this run) | 20 | 25 | Microsoft Power Automate +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 77 | 76 | Gumloop +1 |
| Transparency & trust | 7% (8.8 this run) | 57 | 76 | Microsoft Power Automate +19 |
| Negative events | ≤15 | -2 | 0 | |
| **Total** | | **61.6 · C** | **62 · B** | |

## Facts side by side

| Fact | Gumloop | Microsoft Power Automate |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | AgentHub Inc. | Microsoft |
| Hosted endpoint | `https://api.gumloop.com/api/v1` | no (local only) |
| Transports | HTTP, Streamable HTTP | 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 | Proprietary service under the Microsoft Product Terms for Microsoft Power Platform |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-10-08 | 2026-10-02 |
| Terms last updated | no date given | no date given |
| Privacy policy last updated | no date given | 2026-09-01 |
| Customer content may train models | yes | yes |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 188 npm/wk, 2.9k PyPI/wk | 11k PyPI/wk |

## 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.

**Microsoft Power Automate.** Cloud flows in a solution are rows an agent can read and write through the Dataverse Web API under Entra ID OAuth and security roles, with published limits and a 99.9 per cent SLA. Flows under My flows can't be managed in code, a flow's body is one hand-built JSON string, and setup needs a tenant administrator.

## 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

### Microsoft Power Automate

1. Filter `workflows` on `category eq 5` for cloud flows, and add `$select`, because `clientdata` holds the whole definition
2. Flows created through the API start with `statecode` 0 (off). The docs say to turn the flow on before use
3. Put the flow in a solution first. Flows that sit only under My flows are outside the supported API
4. On 429 wait the `Retry-After` seconds. Reads of `flowruns` count against the daily Power Platform request allowance
5. Treat an HTTP trigger URL with `sig=` as a secret, and prefer the tenant or named-user trigger modes with a bearer token for `https://service.flow.microsoft.com/`

## Questions

### Which is better for AI agents, Gumloop or Microsoft Power Automate?

Microsoft Power Automate and Gumloop score within a point of each other on agent readiness, 62 (B) and 61.6 (C). Gumloop leads on reliability and schema & documentation.

### Do Gumloop and Microsoft Power Automate need an API key?

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

### Can an agent call Gumloop and Microsoft Power Automate without installing anything?

Gumloop has a hosted endpoint at https://api.gumloop.com/api/v1. No hosted endpoint is listed for Microsoft Power Automate.


## For agents

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

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