Head to head · Personal transactions · October 2026 research run
Emma vs Plum
Plum scores 27.4 (F) on agent readiness against Emma's 17.4 (F), and leads in 3 of 7 scored categories. Both do personal transactions.
Best subscription, bill and budgeting tools for AI agents · All 43 personal finance comparisons
Which one, for what
Emma F
Best for UK users who want subscriptions, bills and budgets in one app, with savings and investing.
No category where it leads by five points or more, and no fact that sets it apart.
Watch for
No public API or MCP server an outside agent can call.
Plum F
Best for UK and European users who want saving and investing automated from their spending.
Ahead on
- Reliability, 60 against 15
- Transparency & trust, 58 against 49
Watch for
No public API or MCP server an outside agent can call.
Score by category
| Category | Weight this run | Emma | Plum | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 15 | 60 | Plum +45 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 10 | 10 | even |
| Agent ergonomics | 13%16.2 | 0 | 0 | even |
| Security & auth | 14%17.5 | 0 | 0 | even |
| Payments & pricing | 10%12.5 | 30 | 30 | even |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 54 | 56 | Plum +2 |
| Transparency & trust | 7%8.8 | 49 | 58 | Plum +9 |
| Negative events | ≤15 | 0 | 0 | |
| Total | F 17.4/100 | F 27.4/100 |
Facts side by side
| Fact | Emma | Plum |
|---|---|---|
| Kind | Platform | Platform |
| Vendor | Emma Technologies Ltd | Plum Fintech Limited |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | ||
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Closed service under Emma's terms and conditions (Emma Technologies Ltd) | Closed service under Plum's terms (Plum Fintech Limited and Saveable Limited) |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-12 | 2026-10-12 |
| Terms last updated | no date given | 2026-07-15 |
| Privacy policy last updated | no date given | no date given |
| Customer content may train models | not found in the text | not found in the text |
| 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 | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | not found in the text |
Verdicts
Emma
Emma tracks subscriptions, bills and budgets for UK users through Open Banking, with a free plan and public prices for paid tiers, and iOS releases about every week. There is no public API or MCP server an outside agent can call. No status page or security contact was found, and the terms forbid bots and scrapers.
Plum
Plum automates saving and investing for UK and European users from their bank data, with a free tier, public prices, a status page and weekly iOS releases. There is no public API or MCP server an outside agent can call, and its AI tools run only inside the app. No security contact was found.
Before you call either
Emma
- Don't plan to call Emma from another agent. Hand the task to the person in the Emma app or web app.
- For a one-off cancellation question, the public pages at emma-app.com/how-to-cancel can be read like any web page.
Plum
- Don't plan to call Plum from another agent. Hand the task to the person in the Plum app.
- Plum moves real money between accounts and investments, so leave any change to automations or withdrawals to the person.
Questions
Which is better for AI agents, Emma or Plum?
Plum scores 27.4 (F) on agent readiness against Emma's 17.4 (F), and leads in 3 of 7 scored categories.
Other comparisons with Emma or Plum
Machine-readable
- This page as Markdown
/compare/emma-vs-plum.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/emma.json·/api/v1/tools/plum.json - From a terminal
anchor compare emma plum(the CLI) - Over MCP
compare_tools {"a": "emma", "b": "plum"}at/mcp, no key