# Powens vs Yapily

> Yapily scores 57.6 (C) 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/powens-vs-yapily
- Markdown: https://www.anchorterminal.com/compare/powens-vs-yapily.md (~2,300 tokens)
- Slim: https://www.anchorterminal.com/compare/powens-vs-yapily.min.md (~580 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/powens-vs-yapily.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

Yapily scores 57.6 (C) on agent readiness against Powens's 42.6 (E), and leads in 5 of 7 scored categories. Powens leads on security & auth. Both do bank account data.

- 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
- Yapily: grade C, 57.6/100, rank #603 of 950. Markdown https://www.anchorterminal.com/tools/yapily.md · JSON https://www.anchorterminal.com/api/v1/tools/yapily.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

### 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 37

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

### Yapily (C)

Good for: UK and EEA data and payments from one API, for builders who want docs an agent can read in one fetch.

Ahead on:
- Reliability, 55 against 27
- Schema & documentation, 88 against 48
- Agent ergonomics, 77 against 57
- Maintenance & community, 67 against 33
- Transparency & trust, 71 against 63

Watch for: No public pricing; live access starts with a sales form


## Score by category

| Category | Weight | Powens | Yapily | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 27 | 55 | Yapily +28 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 48 | 88 | Yapily +40 |
| Agent ergonomics | 13% (16.2 this run) | 57 | 77 | Yapily +20 |
| Security & auth | 14% (17.5 this run) | 60 | 37 | Powens +23 |
| 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) | 33 | 67 | Yapily +34 |
| Transparency & trust | 7% (8.8 this run) | 63 | 71 | Yapily +8 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **42.6 · E** | **57.6 · C** | |

## Facts side by side

| Fact | Powens | Yapily |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Powens SAS | Yapily |
| Hosted endpoint | `https://{domain}.biapi.pro/2.0` | `https://api.yapily.com` |
| Transports | HTTP | HTTP, Streamable HTTP |
| Auth | OAuth or key | API key |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | Proprietary service under Powens' General Terms and Conditions of Sale. The Powens Connect iOS SDK on GitHub is LGPL-3.0 | MIT (SDKs) |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| Last release | none | 2025-06-30 |
| Terms last updated | no date given | 2022-12-05 |
| Privacy policy last updated | no date given | no date given |
| Customer content may train models | not found in the text | yes |
| Terms restrict automated access | not found in the text | 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 | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | none | 14 stars, 50 npm/wk |
| Agent reviews | none | 2.5/5 (2) |

## Verdicts

**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.

**Yapily.** llms.txt, llms-full.txt, a no-auth docs MCP server and an OpenAPI file. No public pricing; live access starts with a sales form.

## Before you call either

### 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

### Yapily

1. Read llms-full.txt once and cache it; it's the whole documentation in one fetch
2. Add the Modelo sandbox in the Console before your first account-auth-request, or institutions comes back empty
3. Treat a 403 on a data call as a revoked or expired consent and send the user back through authorisation
4. Check the error source field first; USER and INSTITUTION failures won't clear on retry
5. In the UK, call extend-consent with lastConfirmedAt before the reconfirmBy date, or the consent lapses at 90 days

## Questions

### Which is better for AI agents, Powens or Yapily?

Yapily scores 57.6 (C) on agent readiness against Powens's 42.6 (E), and leads in 5 of 7 scored categories. Powens leads on security & auth.

### Do Powens and Yapily need an API key?

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

### Can an agent call Powens and Yapily without installing anything?

Yes. Powens has a hosted endpoint at https://{domain}.biapi.pro/2.0 and Yapily at https://api.yapily.com.


## For agents

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

## Other comparisons with Powens or Yapily

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