Head to head · Shipping rates · October 2026 research run
EasyPost vs Sendcloud
Sendcloud scores 62 (B) on agent readiness against EasyPost's 54.3 (C), and leads in 6 of 7 scored categories. EasyPost leads on maintenance & community. Both do shipping rates.
Which one, for what
EasyPost C
Good for An agent that quotes rates across carriers, buys a label, verifies an address, follows tracking by webhook and requests a refund from one merchant account, mainly on US carriers.
Ahead on
- Maintenance & community, 85 against 67
Also in its favour
- No incidents deducted, where Sendcloud loses 3 points for them
Watch for
No OpenAPI spec was found in the docs or in the EasyPost GitHub organisation. The reference is prose and tables, with a Postman workspace
Good for An agent shipping parcels for a European shop that wants many carriers behind one account, including its own carrier contracts on paid plans.
Ahead on
- Reliability, 68 against 53
- Schema & documentation, 89 against 55
- Agent ergonomics, 71 against 63
- Payments & pricing, 37 against 22
Watch for
One OAuth scope, api, and key pairs with full account access. No read-only credential was found in the reviewed documentation
Score by category
| Category | Weight this run | EasyPost | Sendcloud | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 53 | 68 | Sendcloud +15 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 55 | 89 | Sendcloud +34 |
| Agent ergonomics | 13%16.2 | 63 | 71 | Sendcloud +8 |
| Security & auth | 14%17.5 | 47 | 49 | Sendcloud +2 |
| Payments & pricing | 10%12.5 | 22 | 37 | Sendcloud +15 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 85 | 67 | EasyPost +18 |
| Transparency & trust | 7%8.8 | 70 | 72 | Sendcloud +2 |
| Negative events | ≤15 | 0 | -3 | |
| Total | 54.3 · C | 62 · B |
Facts side by side
| Fact | EasyPost | Sendcloud |
|---|---|---|
| Kind | HTTP API | HTTP API |
| Vendor | Simpler Postage, Inc. (d/b/a EasyPost) | Sendcloud B.V. |
| Hosted endpoint | https://api.easypost.com/v2 | https://mcp.sendcloud.com/mcp |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Proprietary service under the EasyPost Master Customer Agreement. The official client libraries on GitHub are MIT, with the Go library under ISC | Proprietary service under Sendcloud's terms and conditions |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| Last release | 2026-09-28 | 2026-10-05 |
| Terms last updated | 2026-08-25 | no date given |
| Privacy policy last updated | 2026-08-25 | no date given |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 149 stars, 100k npm/wk, 42k PyPI/wk | none |
Verdicts
EasyPost
Docs written for agents (llms.txt, a Markdown copy of each page, a JSON page index), seven official SDKs and free test keys make the REST API easy to start on. No OpenAPI spec or idempotency keys were found, every key has full account access, and the status page shows a connectivity outage on 23 July 2026 that affected all operations.
Sendcloud
API v3 has 29 public OpenAPI 3.1 specs, an llms.txt index, a dated changelog and a hosted MCP server with toolset filtering. OAuth has one scope, api, so a credential can't be limited to reading. The changelog records response fields removed from tracking events on 25 September 2026 with no earlier deprecation entry.
Before you call either
EasyPost
- Use a test API key while building. It buys no postage and contacts no carrier, and test tracking codes simulate each tracking status
- Don't blind-retry
POST /shipments/:id/buyafter a timeout. Retrieve the shipment first and check forpostage_label, since no idempotency key exists - Send the API key as the HTTP Basic username with an empty password on the REST API, and as a Bearer token on the MCP server
- Handle
errorsas either an array of objects or an array of strings. The docs say both shapes occur - Pass a scoped
carrier_accountslist when rating. Only the first 60 accounts are rated and the call doesn't fail when more are enabled
Sendcloud
- Use API v3 at https://panel.sendcloud.sc/api/v3. The v2 create-parcel endpoint is closed to accounts created from April 2026
- Test with
shipping_option_codesendcloud:letter(returns usesendcloud:letterreturn). Any other label is billed unless cancelled within the carrier's deadline - Set
external_reference_idon every shipment so a retry returns the existing shipment (409) instead of a second label - Read the
errorsarray on synchronous announce responses. A carrier failure can arrive inside a success status - Connect MCP with
?toolsets=shipments,shipping-options,parcel-tracking,returnsto keep the tool list short. Create and cancel tools act on the live account
Questions
Which is better for AI agents, EasyPost or Sendcloud?
Sendcloud scores 62 (B) on agent readiness against EasyPost's 54.3 (C), and leads in 6 of 7 scored categories. EasyPost leads on maintenance & community.
Do EasyPost and Sendcloud need an API key?
EasyPost needs an API key. Sendcloud takes an API key or an OAuth sign-in.
Can an agent call EasyPost and Sendcloud without installing anything?
Yes. EasyPost has a hosted endpoint at https://api.easypost.com/v2 and Sendcloud at https://mcp.sendcloud.com/mcp.
Other comparisons with EasyPost or Sendcloud
Machine-readable
- This page as Markdown
/compare/easypost-vs-sendcloud.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/easypost.json·/api/v1/tools/sendcloud.json - From a terminal
anchor compare easypost sendcloud(the CLI) - Over MCP
compare_tools {"a": "easypost", "b": "sendcloud"}at/mcp, no key