When to choose Xometry
- You need API-driven quote/order automation.
- You want broad process coverage in one marketplace model.
- You want speed tiers (Expedite/Standard/Economy) to tune cost vs lead time.
Comparison
Last updated: 2026-02-27
Xometry and Protolabs both support instant quote workflows for core custom manufacturing processes, but they differ on API access, network model, and execution style.
| Dimension | Xometry | Protolabs |
|---|---|---|
| Processes | CNC, 3D printing, sheet metal, injection molding, plus casting/stamping/extrusion | Injection molding, CNC, 3D printing, sheet metal, plus Protolabs Network extension |
| Materials | Broad metals/plastics across marketplace suppliers | Broad metals/plastics across owned factories plus network |
| MOQ | 1 unit (no MOQ) | 1 part (no formal MOQ); injection molding tooling NRE applies |
| Lead time | Dynamic by quote; CNC can be as fast as 1 business day | As fast as 1 business day for CNC/3DP; 3-5 days sheet metal; 7+ days injection molding |
| Instant quoting | Yes | Yes |
| Public API | Yes | No public API documented |
| Certifications | ISO 9001, ISO 13485, AS9100D, IATF 16949, ITAR, CMMC L2 | ISO 9001, ISO 13485, AS9100D, ITAR, plus regional ISO 14001/45001 |
| Marketplace model | Distributed supplier network | Hybrid (own factories + Protolabs Network) |
| Pricing model | AI-driven marketplace pricing with speed tiers | Automated quote from CAD with own-factory plus network routing |
| DFM feedback | Yes | Yes |
Sources: Reddit (CNC alternatives); Reddit (Xometry experience); Trustpilot (Xometry); Trustpilot (Protolabs)
There is no single winner. Both use dynamic quoting, so the reliable method is comparing live quotes for the same CAD, quantity, and lead time.
Both publish very fast paths for eligible jobs. Protolabs commonly lists one-business-day CNC and 3D printing options, while Xometry can also reach one-business-day CNC via Expedite.
Reddit discussions usually focus on quote variance, part quality consistency, and support experience rather than a universal winner.
Xometry documents a public API for programmatic quote and order workflows. Protolabs does not document a comparable public API.
Both publish strong certification signals, including ISO and aerospace/medical coverage. Final fit depends on process, region, and compliance workflow details.
Both can support production. Protolabs extends capacity through Protolabs Network, while Xometry routes through its distributed supplier marketplace.