Head to head · Spend transactions · October 2026 research run
Brex vs Ramp
Brex scores 60.7 (C) on agent readiness against Ramp's 57.3 (C), and leads in 2 of 7 scored categories. Ramp leads on schema & documentation, security & auth and maintenance & community. Both do spend transactions.
Which one, for what
Brex C
Good for A finance team already on Brex that wants an agent to read expenses and transactions, issue and lock cards, set spend limits, upload receipts and pay vendors.
Ahead on
- Reliability, 60 against 30
Watch for
The Expenses API update endpoint accepts only memo, so an outside agent can't set a category or custom field on an expense through it
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 80
- Security & auth, 79 against 72
- Maintenance & community, 74 against 66
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
| Category | Weight this run | Brex | Ramp | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 60 | 30 | Brex +30 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 80 | 86 | Ramp +6 |
| Agent ergonomics | 13%16.2 | 70 | 66 | Brex +4 |
| Security & auth | 14%17.5 | 72 | 79 | Ramp +7 |
| Payments & pricing | 10%12.5 | 25 | 25 | even |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 66 | 74 | Ramp +8 |
| Transparency & trust | 7%8.8 | 67 | 70 | Ramp +3 |
| Negative events | ≤15 | -3 | -3 | |
| Total | 60.7 · C | 57.3 · C |
Facts side by side
| Fact | Brex | Ramp |
|---|---|---|
| Kind | HTTP API | HTTP API |
| Vendor | Brex LLC | Ramp Business Corporation |
| Hosted endpoint | https://api.brex.com | https://api.ramp.com |
| Transports | HTTP | HTTP |
| Auth | OAuth or key | OAuth |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Proprietary service under the Brex Platform Agreement and the Brex Access Agreement | Proprietary service under the Ramp Platform Agreement and the API Agreement. The ramp-cli repository is MIT |
| Tools exposed | 43 | none |
| Read-only variant documented | yes | no |
| llms.txt | yes | yes |
| Last release | 2026-10-01 | 2026-10-07 |
| Terms last updated | no date given | couldn't be read |
| Privacy policy last updated | no date given | couldn't be read |
| Customer content may train models | not found in the text | couldn't be read |
| Terms restrict automated access | not found in the text | couldn't be read |
| Terms restrict benchmarking | yes | couldn't be read |
| Terms or service can change without notice | not found in the text | couldn't be read |
| Arbitration or class-action waiver | yes | couldn't be read |
| Popularity | none | 53 stars |
Verdicts
Brex
User tokens carry per-resource scopes with read-only variants, every POST and PUT accepts an Idempotency-Key, and ten OpenAPI specs are public. The Expenses API changes only an expense's memo, there is no customer sandbox or official SDK, and the status page logs API errors lasting over four hours on 4 August 2026.
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
Brex
- Ask an account admin or card admin for a user token with only the scopes the task needs, and prefer the
.readonlyvariants. A token unused for 90 days expires. - Send a stored
Idempotency-Keyon every POST and PUT. Create transfer and Create card reject requests without one. - Only settled transactions are returned. Poll card and cash transactions with
posted_at_startand a lookback of at least one day. - Keep under 1,000 requests in 60 seconds per client and account, and back off exponentially with jitter on 429.
- Send only ASCII in free-text fields, and quote the
X-Brex-Trace-Idresponse header when reporting an error.
Ramp
- Send
scopeon the client credentials token request. Without it Ramp issues a token with no scopes and every resource call fails with 403 - Follow the full URL in
nextto page.page_sizedefaults to 20 and stops at 100, and the cursor is opaque - 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
- Don't use
synced_afterorfrom_created_atto find changed records. Bills and transactions have no updated-at filter, so subscribe to webhooks - Send
X-Idempotency-Keywhen 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, Brex or Ramp?
Brex scores 60.7 (C) on agent readiness against Ramp's 57.3 (C), and leads in 2 of 7 scored categories. Ramp leads on schema & documentation, security & auth and maintenance & community.
Do Brex and Ramp need an API key?
Brex takes an API key or an OAuth sign-in. Ramp uses an OAuth sign-in.
Can an agent call Brex and Ramp without installing anything?
Yes. Brex has a hosted endpoint at https://api.brex.com and Ramp at https://api.ramp.com.
Other comparisons with Brex or Ramp
Machine-readable
- This page as Markdown
/compare/brex-vs-ramp.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/brex.json·/api/v1/tools/ramp.json - From a terminal
anchor compare brex ramp(the CLI) - Over MCP
compare_tools {"a": "brex", "b": "ramp"}at/mcp, no key