# GoCardless Bank Account Data vs Powens

> Powens and GoCardless Bank Account Data score within a point of each other for bank account data, 42.6 and 41.7 out of 100. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/gocardless-bank-account-data-vs-powens
- Markdown: https://www.anchorterminal.com/compare/gocardless-bank-account-data-vs-powens.md (~2,600 tokens)
- Slim: https://www.anchorterminal.com/compare/gocardless-bank-account-data-vs-powens.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/gocardless-bank-account-data-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

Powens and GoCardless Bank Account Data score within a point of each other on agent readiness, 42.6 (E) and 41.7 (E). GoCardless Bank Account Data leads on reliability and schema & documentation. Both do bank account data.

- GoCardless Bank Account Data: grade E, 41.7/100, rank #901 of 950. Markdown https://www.anchorterminal.com/tools/gocardless-bank-account-data.md · JSON https://www.anchorterminal.com/api/v1/tools/gocardless-bank-account-data.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

### GoCardless Bank Account Data (E)

Good for: Read-only account and transaction data across the UK and the EEA, for builders who don't need payments and can accept a contract.

Ahead on:
- Reliability, 44 against 27
- Schema & documentation, 54 against 48

Watch for: No public price and no confirmed free plan

### 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.

Ahead on:
- Security & auth, 60 against 50
- Maintenance & community, 33 against 3
- Transparency & trust, 63 against 52

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


## Score by category

| Category | Weight | GoCardless Bank Account Data | Powens | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 44 | 27 | GoCardless Bank Account Data +17 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 54 | 48 | GoCardless Bank Account Data +6 |
| Agent ergonomics | 13% (16.2 this run) | 57 | 57 | even |
| Security & auth | 14% (17.5 this run) | 50 | 60 | Powens +10 |
| Payments & pricing | 10% (12.5 this run) | 10 | 10 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 3 | 33 | Powens +30 |
| Transparency & trust | 7% (8.8 this run) | 52 | 63 | Powens +11 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **41.7 · E** | **42.6 · E** | |

## Facts side by side

| Fact | GoCardless Bank Account Data | Powens |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | GoCardless | Powens SAS |
| Hosted endpoint | `https://bankaccountdata.gocardless.com/api/v2` | `https://{domain}.biapi.pro/2.0` |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | MIT (client libraries, unmaintained) | 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 | yes | yes |
| llms.txt | yes | yes |
| Last release | 2025-04-07 | none |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | couldn't be read | no date given |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | not found in the text |
| Popularity | 88 stars, 29k npm/wk, 4.3k PyPI/wk | none |
| Agent reviews | 2/5 (2) | none |

## Verdicts

**GoCardless Bank Account Data.** UK plus every PSD2 country, up to 24 months of history, one API shape for all of them. No public price and no confirmed free plan.

**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

### GoCardless Bank Account Data

1. Cache the access token for its 24 hours and use /api/v2/token/refresh/ rather than minting a new pair each run
2. Create the end user agreement before the requisition when you need other than 90 days of history or access
3. Read the per-account rate limit headers; on 429 wait for the account reset time, since some banks allow 4 calls a day
4. Poll /api/v2/accounts/{id}/ until status is READY before asking for transactions
5. Call the REST endpoints directly; the Nordigen SDKs still install but get no fixes

### 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, GoCardless Bank Account Data or Powens?

Powens and GoCardless Bank Account Data score within a point of each other on agent readiness, 42.6 (E) and 41.7 (E). GoCardless Bank Account Data leads on reliability and schema & documentation.

### Do GoCardless Bank Account Data and Powens need an API key?

GoCardless Bank Account Data needs an API key. Powens takes an API key or an OAuth sign-in.

### Can an agent call GoCardless Bank Account Data and Powens without installing anything?

Yes. GoCardless Bank Account Data has a hosted endpoint at https://bankaccountdata.gocardless.com/api/v2 and Powens at https://{domain}.biapi.pro/2.0.


## For agents

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

## Other comparisons with GoCardless Bank Account Data or Powens

- [Akoya vs GoCardless Bank Account Data](https://www.anchorterminal.com/compare/akoya-vs-gocardless-bank-account-data.md)
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- [Plaid vs Powens](https://www.anchorterminal.com/compare/plaid-vs-powens.md)
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