Category · Work & business apps
Shipping and fulfilment APIs for AI agents
Services that quote carrier rates, buy labels, validate addresses, track parcels and handle returns. Compared on carrier coverage, rate and label calls, tracking events and how costs are charged.
Capability keys shipping.rates · shipping.labels · shipping.tracking · shipping.address-validation · shipping.returns · All tools
letme.dev/shipping.rates picks the top-graded tool in this list and says how to call it direct; calling through letme comes later.
The same listing from the live API. Graded results come first, then the official MCP registry when no graded-only filter is set.
https://www.anchorterminal.com/api/v1/searchFilters
| Compare | # | Tool | Category | Grade | Score | Agent rating | p95 | Context | Price / x402 | Auth | Where | Details |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 143 | EasyshipEasyship Inc. · HTTP API | Shipping | B | 68.8 | none | n/a | n/a | $29 / mo | OAuth or key | Hosted + local | ||
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Multi-carrier shipping platform from Easyship. Its public API and hosted MCP server quote courier rates, create shipments, buy labels, validate addresses, track parcels and book pickups across what Easyship says are 550+ courier services. Top strength Tokens carry per-resource read and write scopes, with separate sandbox (sand_) and production (prod_) tokens Top weakness No idempotency keys in the 132-operation spec, and no Retry-After or backoff guidance for 429 |
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| 282 | SendcloudSendcloud B.V. · HTTP API | Shipping | B | 62 | none | n/a | n/a | $31.30 / mo | OAuth or key | Hosted | ||
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Shipping platform for European online shops from Sendcloud B.V. in Eindhoven. Its API v3 and hosted MCP server quote carrier rates, create labels, validate addresses, track parcels and handle returns across the carriers an account has enabled. Top strength 29 public OpenAPI 3.1 specs covering 104 API v3 operations, with an llms.txt index and Markdown copies of every docs page Top weakness One OAuth scope, |
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| 285 | ShippoShippo · HTTP API | Shipping | C | 61.9 | none | n/a | n/a | $0.07 / tx | OAuth or key | Hosted | ||
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Multi-carrier shipping API from Shippo. It quotes rates, buys labels, validates addresses, tracks parcels and creates return labels across the carriers it connects, through a REST API, official SDKs and a hosted MCP server. Top strength Public prices per unit, 7 cents a label after 30 free a month, 1 cent a rate request and 2 cents a tracking request Top weakness No idempotency key on label purchase or other writes. Only the Reporting API accepts one |
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| 346 | ShipStation APIAuctane LLC d/b/a ShipStation · HTTP API | Shipping | C | 59.3 | none | n/a | n/a | $75 / mo | API key | Hosted | ||
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Multi-carrier shipping API from ShipStation, an Auctane brand. API v2 at api.shipstation.com/v2 quotes rates, buys and voids labels, validates addresses, tracks parcels and creates return labels, with batches, manifests, pickups and inventory. Top strength Public OpenAPI 3.1 spec for v2 with 173 operations and 372 schemas, plus llms.txt and a Markdown copy of every docs page Top weakness One API key with full account access. No scopes, read-only keys or approval step before a label is bought |
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| 423 | EasyPostSimpler Postage, Inc. (d/b/a EasyPost) · HTTP API | Shipping | C | 54.3 | none | n/a | n/a | $0.02 / call | API key | Hosted | ||
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EasyPost is a multi-carrier shipping API from Simpler Postage, Inc. Its REST API quotes carrier rates, buys labels, verifies addresses, tracks parcels and files refunds and insurance claims, with a hosted read-only MCP server in early release. Top strength llms.txt, a Markdown copy of almost every docs page and a JSON page index with a note on when to read each page Top weakness No OpenAPI spec was found in the docs or in the EasyPost GitHub organisation. The reference is prose and tables, with a Postman workspace |
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Nothing matches these filters. .
p95 latency and context cost come from our probes, which haven't run yet, so those columns start hidden. Grades run from AA to F, and agent-ready means BB or better. Filters, sorting and export run in your browser; the table is complete without JavaScript.
How we test this category
The same parcel quoted between the same two addresses on each listing's test mode, a label bought for the cheapest tracked service and the shipment followed to delivery. We check the rates returned, address validation, tracking events and refund of an unused label. In this run listings are graded from public evidence against the published checklist. This test hasn't run yet, so Task success is pending and the grades here come from the categories assessed from public evidence.
How the ranking works
Every listing is scored 0 to 100 and given a grade from AA to F. In the October 2026 research run, 7 of the 9 weighted categories are scored from public evidence (status history, docs, pricing, terms, source and security pages) against a published checklist, with the reason and sources for every score on the listing. Performance and Task success wait for our probes and task suites, so their weight is shared across the rest until they run. Negative events deduct up to 15 points. Read the methodology.
For companies
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