Head to head · Spend transactions · October 2026 research run

Expensify vs Pleo API + MCP

Pleo API + MCP scores 62.9 (B) on agent readiness against Expensify's 41.1 (E), and leads in 6 of 7 scored categories. Expensify leads on payments & pricing. Both do spend transactions.

Which one, for what

Expensify E

Good for A finance team already on Expensify that wants an agent to export approved reports to an accounting system, create expenses and reports, keep categories, tags and employees in step with an HR system, or mark reports reimbursed.

Ahead on

  • Payments & pricing, 30 against 15

Watch for

No OpenAPI spec, llms.txt, version number or changelog was found for the Integration Server API

Pleo API + MCP B

Good for An agent that completes, codes, reviews and queues expenses for a Pleo customer on the Optimise plan, or for a bookkeeping integration that exports accounting entries and syncs tags, tax codes, accounts and vendors.

Ahead on

  • Reliability, 71 against 62
  • Schema & documentation, 82 against 28
  • Agent ergonomics, 55 against 45
  • Security & auth, 71 against 34
  • Maintenance & community, 64 against 23
  • Transparency & trust, 75 against 58

Watch for

The pricing page lists MCP on the Optimise plan only (£18 per user per month, three users minimum, sold through a demo)

Score by category

CategoryWeight this runExpensifyPleo API + MCPEdge
Reliability16%206271Pleo API + MCP +9
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.22882Pleo API + MCP +54
Agent ergonomics13%16.24555Pleo API + MCP +10
Security & auth14%17.53471Pleo API + MCP +37
Payments & pricing10%12.53015Expensify +15
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.82364Pleo API + MCP +41
Transparency & trust7%8.85875Pleo API + MCP +17
Negative events≤1500
Total41.1 · E62.9 · B

Facts side by side

FactExpensifyPleo API + MCP
KindHTTP APIHTTP API
VendorExpensify, Inc.Pleo Technologies A/S
Hosted endpointhttps://integrations.expensify.com/Integration-Server/ExpensifyIntegrationshttps://external.pleo.io
TransportsHTTPHTTP, Streamable HTTP
AuthOAuth or keyOAuth or key
PricingFreemiumPaid
x402nono
LicenceProprietary service under the Expensify Terms of Service. The Expensify app client and help articles on GitHub (Expensify/App) are MITProprietary service under Pleo's Master Service Agreement, API Terms of Service and AI Access Terms
Read-only variant documentedyesno
llms.txtnoyes
Last releasenone2026-10-02
Terms last updated2026-09-10no date given
Privacy policy last updated2026-04-01
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessyesnot found in the text
Terms restrict benchmarkingnot found in the textnot found in the text
Terms or service can change without noticeyesnot found in the text
Arbitration or class-action waiveryesnot found in the text

Verdicts

Expensify

One endpoint exports reports through caller-written templates and creates expenses, reports, rules and workspace settings, with limits of 5 requests per 10 seconds published and a status page that tracks the API separately. There is no OpenAPI spec, changelog, SDK, pagination or idempotency key, and one credential pair carries the whole account's rights.

Pleo API + MCP

The hosted MCP server acts with the connecting user's own Pleo permissions, is off until an admin enables it per entity, and can't move money, change cards or alter limits. It is listed only on the Optimise plan, its tool definitions aren't published, API keys need enabling by Pleo support, and no official SDK or SLA was found.

Before you call either

Expensify

  1. POST requestJobDescription as a form field to the single endpoint. Keep it out of the URL query string, because it carries the secret
  2. Read responseCode in the body on every reply. HTTP status can be 200 on failure, and validation errors use 410
  3. Stay under 5 requests per 10 seconds and 20 per 60 seconds. No Retry-After header is documented, so space retries yourself
  4. Export in two calls. A file job returns a filename, then a download job fetches it. Amounts are in cents
  5. Don't retry a create job blindly. No idempotency key exists, so export and check before resending. Set dry-run to true when testing the Advanced Employee Updater

Pleo API + MCP

  1. Ask a company admin to enable Pleo MCP access under Settings, General, Pleo AI for each entity before connecting. It is off by default
  2. Name the entity in every request when working outside the default one. Each MCP request targets one entity and the choice doesn't persist
  3. Set the AI client to require approval for Pleo write tools. Pleo leaves confirmation to the client and doesn't enforce it server-side
  4. Send API keys as the Basic auth username with an empty password to external.pleo.io. Legacy tokens for openapi.pleo.io don't work there
  5. Budget every endpoint against one bucket of 600 requests a minute per credential, and on 429 wait for Retry-After or back off from one second
  6. Swap mcp.staging.pleo.io for mcp.pleo.io in the Claude Code command when moving from staging to production. Each needs its own OAuth sign-in

Questions

Which is better for AI agents, Expensify or Pleo API + MCP?

Pleo API + MCP scores 62.9 (B) on agent readiness against Expensify's 41.1 (E), and leads in 6 of 7 scored categories. Expensify leads on payments & pricing.

Do Expensify and Pleo API + MCP need an API key?

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

Can an agent call Expensify and Pleo API + MCP without installing anything?

Yes. Expensify has a hosted endpoint at https://integrations.expensify.com/Integration-Server/ExpensifyIntegrations and Pleo API + MCP at https://external.pleo.io.

Other comparisons with Expensify or Pleo API + MCP

Machine-readable

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.