# MX Platform API vs Powens

> MX Platform scores 62.5 (B) to Powens's 42.6 (E) for bank account data. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/mx-vs-powens
- Markdown: https://www.anchorterminal.com/compare/mx-vs-powens.md (~2,500 tokens)
- Slim: https://www.anchorterminal.com/compare/mx-vs-powens.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/mx-vs-powens.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

MX Platform API scores 62.5 (B) on agent readiness against Powens's 42.6 (E), and leads in 5 of 7 scored categories. Both do bank account data.

- MX Platform API: grade B, 62.5/100, rank #430 of 950. Markdown https://www.anchorterminal.com/tools/mx.md · JSON https://www.anchorterminal.com/api/v1/tools/mx.json
- Powens: grade E, 42.6/100, rank #892 of 950. Markdown https://www.anchorterminal.com/tools/powens.md · JSON https://www.anchorterminal.com/api/v1/tools/powens.json
- Best open banking and bank data APIs for AI agents: https://www.anchorterminal.com/best/banking-data/index.md
- All 105 bank data comparisons: https://www.anchorterminal.com/compare/banking-data/index.md

## Which one, for what

### MX Platform API (B)

Good for: A US or Canadian bank, credit union or fintech with a signed MX contract that wants aggregation, verification and categorised transactions plus embeddable finance widgets.

Ahead on:
- Reliability, 63 against 27
- Schema & documentation, 85 against 48
- Agent ergonomics, 74 against 57
- Payments & pricing, 15 against 10
- Maintenance & community, 71 against 33

Watch for: No public price, SLA or client agreement. Production keys are requested from MX in the Client Dashboard

### Powens (E)

Good for: A European product, strongest in France, that needs account and transaction data plus wealth, loan and document data under Powens' own licence.

Watch for: No OpenAPI or other machine-readable contract was found. The reference is hand-written tables


## Score by category

| Category | Weight | MX Platform API | Powens | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 63 | 27 | MX Platform API +36 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 85 | 48 | MX Platform API +37 |
| Agent ergonomics | 13% (16.2 this run) | 74 | 57 | MX Platform API +17 |
| Security & auth | 14% (17.5 this run) | 60 | 60 | even |
| Payments & pricing | 10% (12.5 this run) | 15 | 10 | MX Platform API +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 71 | 33 | MX Platform API +38 |
| Transparency & trust | 7% (8.8 this run) | 63 | 63 | even |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **62.5 · B** | **42.6 · E** | |

## Facts side by side

| Fact | MX Platform API | Powens |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | MX Technologies, Inc. | Powens SAS |
| Hosted endpoint | `https://api.mx.com` | `https://{domain}.biapi.pro/2.0` |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | Proprietary service. The SDKs and the OpenAPI files on GitHub are MIT | Proprietary service under Powens' General Terms and Conditions of Sale. The Powens Connect iOS SDK on GitHub is LGPL-3.0 |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| Last release | 2026-09-29 | none |
| Terms last updated | no document linked | no date given |
| Privacy policy last updated | no document linked | no date given |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | 9 stars, 2.6k npm/wk, 2k PyPI/wk | none |

## Verdicts

**MX Platform API.** Three public OpenAPI files, llms.txt, Markdown docs and a written version policy with 18 months of support and `Deprecation` and `Sunset` response headers. No price, client agreement or SLA is published, production keys need MX's approval, every calling IP address must be allowlisted, and the status page records three platform-wide error incidents since 10 July 2026.

**Powens.** Powens documents a REST API with Markdown docs, cursor pagination, date filters and a hard-delete call for connections, under a French payment institution licence. No OpenAPI file, public price, status page, idempotency key or server SDK was found, and live access needs a signed purchase order.

## Before you call either

### MX Platform API

1. Send `Accept: application/json`, `Accept-Version: v20260929` and Basic auth of `client_id:api_key` on every call. A missing version returns 406
2. Ask the owner to allowlist the calling machine's static IP in the Client Dashboard first. Other addresses get 403, and some failed authentication returns 404
3. Test against `https://int-api.mx.com` with institution `mxbank`, username `mxuser` and any password. It has no aggregation throttle
4. Set your own `id` when creating users and members. A repeat returns 409, which makes a retried create safe
5. Expect 202 without an error when a standard aggregation is throttled (three hours by default). Balance checks stop at 5 per member every 2 hours with 429
6. Pass `includes[]=merchant` or `includes[]=category` as an array on transaction lists. A comma-separated string returns 400

### Powens

1. Ask the owner for the domain name, client ID and client secret from the console. Every call goes to `https://{domain}.biapi.pro/2.0`
2. Send `limit` on every transactions list. It is required, at most 1,000, and the next page comes from `_links.next.href` used as given
3. Enable an account with `POST` and `{"disabled": false}` only after the account holder consents. Accounts arrive disabled with no transactions
4. Store the permanent user token as a secret. It does not expire, and the default webhook sends it in the `Authorization` header
5. Stay under 30 calls a minute in the sandbox and use webhooks in place of polling, as the fair usage policy asks

## Questions

### Which is better for AI agents, MX Platform API or Powens?

MX Platform API scores 62.5 (B) on agent readiness against Powens's 42.6 (E), and leads in 5 of 7 scored categories.

### Do MX Platform API and Powens need an API key?

MX Platform API needs an API key. Powens takes an API key or an OAuth sign-in.

### Can an agent call MX Platform API and Powens without installing anything?

Yes. MX Platform API has a hosted endpoint at https://api.mx.com and Powens at https://{domain}.biapi.pro/2.0.


## For agents

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

## Other comparisons with MX Platform API or Powens

- [Akoya vs MX Platform API](https://www.anchorterminal.com/compare/akoya-vs-mx.md)
- [Akoya vs Powens](https://www.anchorterminal.com/compare/akoya-vs-powens.md)
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- [Basiq vs Powens](https://www.anchorterminal.com/compare/basiq-vs-powens.md)
- [Belvo vs MX Platform API](https://www.anchorterminal.com/compare/belvo-vs-mx.md)
- [Belvo vs Powens](https://www.anchorterminal.com/compare/belvo-vs-powens.md)
- [Enable Banking vs MX Platform API](https://www.anchorterminal.com/compare/enable-banking-vs-mx.md)
- [Enable Banking vs Powens](https://www.anchorterminal.com/compare/enable-banking-vs-powens.md)
- [Flinks vs MX Platform API](https://www.anchorterminal.com/compare/flinks-vs-mx.md)
- [Flinks vs Powens](https://www.anchorterminal.com/compare/flinks-vs-powens.md)
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- [GoCardless Bank Account Data vs Powens](https://www.anchorterminal.com/compare/gocardless-bank-account-data-vs-powens.md)
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- [MX Platform API vs Salt Edge Account Information](https://www.anchorterminal.com/compare/mx-vs-salt-edge.md)
- [MX Platform API vs Teller](https://www.anchorterminal.com/compare/mx-vs-teller.md)
- [MX Platform API vs Tink](https://www.anchorterminal.com/compare/mx-vs-tink.md)
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- [MX Platform API vs Yodlee Core API](https://www.anchorterminal.com/compare/mx-vs-yodlee-financial-data.md)
- [Plaid vs Powens](https://www.anchorterminal.com/compare/plaid-vs-powens.md)
- [Powens vs Salt Edge Account Information](https://www.anchorterminal.com/compare/powens-vs-salt-edge.md)
- [Powens vs Teller](https://www.anchorterminal.com/compare/powens-vs-teller.md)
- [Powens vs Tink](https://www.anchorterminal.com/compare/powens-vs-tink.md)
- [Powens vs TrueLayer](https://www.anchorterminal.com/compare/powens-vs-truelayer.md)
- [Powens vs Yapily](https://www.anchorterminal.com/compare/powens-vs-yapily.md)
- [Powens vs Yodlee Core API](https://www.anchorterminal.com/compare/powens-vs-yodlee-financial-data.md)