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Head to head · Spend transactions · October 2026 research run

Payhawk API + MCP vs Ramp

Ramp and Payhawk API + MCP score within a point of each other on agent readiness, 57.3 (C) and 57.1 (C). Payhawk API + MCP leads on reliability and transparency & trust. Both do spend transactions.

Payhawk API + MCPPayhawk Limited · HTTP API C57.1/100#561 of 841 RampRamp Business Corporation · HTTP API C57.3/100#554 of 841

Which one, for what

Payhawk API + MCP C

Good for A finance team already on Payhawk that wants an ERP or accounting sync, master data kept in step, purchase orders raised from another system, or an assistant that answers spend questions and prepares approvals.

Ahead on

  • Reliability, 58 against 30
  • Transparency & trust, 78 against 70

Also in its favour

  • No incidents deducted, where Ramp loses 3 points for them

Watch for

No self-serve route. The API needs a Payhawk customer account, and a development sandbox is requested through a form

Ramp C

Good for A finance team already on Ramp that wants an agent to read transactions, upload receipts, code and split expenses, issue funds with limits, create bills and work with purchase orders and procurement requests.

Ahead on

  • Schema & documentation, 86 against 71
  • Agent ergonomics, 66 against 52
  • Security & auth, 79 against 71
  • Payments & pricing, 25 against 13
  • Maintenance & community, 74 against 53

Watch for

No public status page was found. status.ramp.com doesn't resolve, and no status link appears in the docs, help centre or trust centre pages read

Score by category

CategoryWeight this runPayhawk API + MCPRampEdge
Reliability16%205830Payhawk API + MCP +28
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27186Ramp +15
Agent ergonomics13%16.25266Ramp +14
Security & auth14%17.57179Ramp +8
Payments & pricing10%12.51325Ramp +12
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85374Ramp +21
Transparency & trust7%8.87870Payhawk API + MCP +8
Negative events≤150-3
Total57.1 · C57.3 · C

Facts side by side

FactPayhawk API + MCPRamp
KindHTTP APIHTTP API
VendorPayhawk LimitedRamp Business Corporation
Hosted endpointhttps://api.payhawk.comhttps://api.ramp.com
TransportsHTTPHTTP
AuthOAuth or keyOAuth
PricingPaidFreemium
x402nono
LicenceProprietary service under Payhawk's general terms and conditionsProprietary service under the Ramp Platform Agreement and the API Agreement. The ramp-cli repository is MIT
Tools exposed82none
Read-only variant documentedyesno
llms.txtyesyes
Last release2026-10-082026-10-07
Terms last updated2025-12-09couldn't be read
Privacy policy last updated2026-06-29couldn't be read
Customer content may train modelsnot found in the textcouldn't be read
Terms restrict automated accessnot found in the textcouldn't be read
Terms restrict benchmarkingnot found in the textcouldn't be read
Terms or service can change without noticenot found in the textcouldn't be read
Arbitration or class-action waivernot found in the textcouldn't be read
Popularitynone53 stars

Verdicts

Payhawk API + MCP

The Developer API has a public OpenAPI 3.1 definition with 179 operations, read-only or full-access keys and a published limit of 15 requests a second. It needs a Payhawk customer account, no official SDK or API changelog was found, and the 82-tool MCP server is added by hand because it is not yet in the assistant directories.

Ramp

OAuth 2.0 scopes split read from write across about 40 resources, a 260-operation OpenAPI spec is public, and an audit log endpoint records actions by user and agent. No public status page was found, 89 operations are marked beta, the API Agreement allows changes without notice, and idempotency keys cover only eight write operations.

Before you call either

Payhawk API + MCP

  1. Send the key in X-Payhawk-ApiKey or as a Bearer token to https://api.payhawk.com/api/v3. A read-only key returns 403 on writes
  2. Page lists with $skip and $take. The help centre gives 1,000 a page and the definition a maximum of 10,000, so count what comes back
  3. Pass $filter as URL-encoded JSON, for example {"status":{"$equal":"draft"}}. Date filters compare the date part only
  4. Keep to 15 requests a second and wait for Retry-After on a 429. Do not send Idempotency-Key when creating a per diem expense, which returns 400
  5. Use a group-level key and the /groups/{groupId} paths for master data in a multi-entity group. Expenses and payments stay on account paths

Ramp

  1. Send scope on the client credentials token request. Without it Ramp issues a token with no scopes and every resource call fails with 403
  2. Follow the full URL in next to page. page_size defaults to 20 and stops at 100, and the cursor is opaque
  3. Stay under 200 requests in any 10 seconds per source IP and back off 1, 2 then 4 seconds on 429. No Retry-After header is documented
  4. Don't use synced_after or from_created_at to find changed records. Bills and transactions have no updated-at filter, so subscribe to webhooks
  5. Send X-Idempotency-Key when creating funds or procurement requests. Elsewhere a retried POST can create a duplicate, so read back before retrying

Questions

Which is better for AI agents, Payhawk API + MCP or Ramp?

Ramp and Payhawk API + MCP score within a point of each other on agent readiness, 57.3 (C) and 57.1 (C). Payhawk API + MCP leads on reliability and transparency & trust.

Do Payhawk API + MCP and Ramp need an API key?

Payhawk API + MCP takes an API key or an OAuth sign-in. Ramp uses an OAuth sign-in.

Can an agent call Payhawk API + MCP and Ramp without installing anything?

Yes. Payhawk API + MCP has a hosted endpoint at https://api.payhawk.com and Ramp at https://api.ramp.com.

Other comparisons with Payhawk API + MCP or Ramp

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