Claude API Access from Singapore and China: What Actually Works in 2026

If you are a developer in Singapore or China trying to use Claude, you have already noticed that the standard instructions don’t quite apply to you. The console.anthropic.com onboarding assumes a US billing address. The latency numbers assume you are pinging from a US data center. And for developers in mainland China, the direct API doesn’t work at all without a workaround.

This is a practical guide to what actually works in 2026, written for the Asian developer market that is increasingly one of Claude’s most active audiences.

Singapore: What Works Directly

Singapore is a fully supported country for the Anthropic API. You can create an account at console.anthropic.com, add a payment method, and generate API keys with no restrictions. Most major international credit cards work without issues. If you are at a company with a Singapore entity, Anthropic accepts international wire transfers for enterprise contracts.

Latency from Singapore to Anthropic’s US API endpoints typically runs 180–250ms round-trip depending on your ISP and the model you are calling. For most application use cases this is acceptable. For latency-sensitive real-time applications — voice interfaces, live coding assistants — you will want to route through a closer compute layer, which is where Vertex AI becomes relevant.

Vertex AI: The Regional Solution for Both Markets

Google Cloud’s Vertex AI hosts Claude models (Sonnet and Haiku tiers as of mid-2026) and has a data center in Singapore: asia-southeast1. This is the cleanest solution for developers in both Singapore and the broader Asia-Pacific region who want lower latency and enterprise-grade SLAs.

The practical difference: instead of calling api.anthropic.com, you call a Vertex AI endpoint scoped to asia-southeast1. Your tokens are processed in Singapore, not Virginia. For regulated industries — fintech, healthcare, legal — this also means your data doesn’t leave the region, which is a compliance requirement in several Singapore regulatory frameworks (MAS TRM guidelines being the primary one).

To get started with Claude on Vertex AI from Singapore:

1. Create a GCP project and enable the Vertex AI API
2. Request access to Claude models via the Vertex AI Model Garden (approval is typically same-day for Singapore accounts)
3. Set your region to asia-southeast1 in all API calls
4. Authenticate via a GCP service account rather than an Anthropic API key

The pricing on Vertex AI is comparable to direct Anthropic API pricing, with GCP committed use discounts available at higher volumes.

AWS Bedrock: The Other Regional Option

Amazon Bedrock also hosts Claude models and has a Singapore region (ap-southeast-1). If your infrastructure is already on AWS, this is often the simpler path. The setup mirrors Vertex AI: enable Bedrock in your AWS console, request Claude model access, and specify the Singapore region in your SDK calls.

The practical consideration: as of mid-2026, model availability on Bedrock sometimes lags behind the direct Anthropic API by a few weeks when new versions ship. If being on the latest Claude version immediately matters for your use case, the direct API or Vertex AI are more current.

China: The Honest Situation

The direct Anthropic API is not accessible from mainland China without a VPN. Console.anthropic.com is not blocked at the DNS level in the same way Google is, but connectivity is unreliable and payment processing from Chinese-issued cards through Stripe (Anthropic’s payment processor) fails for most users.

The workarounds that Chinese developers are actually using in 2026:

VPN plus international card. Developers with access to a VPN and an international payment card (Hong Kong or Singapore bank account) use the direct API without issues. This is the most common setup among individual developers and small teams.

Hong Kong entity. Companies with a Hong Kong subsidiary or registered office use that entity for the Anthropic API account. Hong Kong is a fully supported region with no connectivity issues.

Third-party API proxies. Several API aggregators operating out of Hong Kong and Singapore re-sell Anthropic API access to mainland China developers. Quality and terms vary significantly — vet carefully before using in production.

Vertex AI via a non-China GCP account. Some development teams maintain a GCP account registered to a Singapore or Hong Kong entity, then call the Vertex AI Claude endpoint from within China via GCP’s global network. Google Cloud has limited but operational connectivity from within China through its global backbone. This is the most enterprise-appropriate solution for teams that need a compliant path.

Latency Reality Check by Access Method

Latency figures are representative ranges based on typical ISP routing. Your numbers will vary.

Payment and Billing Notes

For Singapore developers on the direct Anthropic API: Visa, Mastercard, and American Express issued by Singapore banks work reliably. PayNow and local payment rails are not supported — you need an international card.

For enterprise: Anthropic’s sales team handles invoiced billing for Singapore and other APAC markets. If you are spending meaningfully on the API, contact sales rather than running on a credit card — the invoiced route gives you better cost predictability and eliminates card limit friction.

The Bottom Line

If you are in Singapore, the direct API works and Vertex AI’s asia-southeast1 region gives you a lower-latency, compliance-friendly alternative worth evaluating for production workloads.

If you are in mainland China, the direct API requires a workaround. A Hong Kong entity plus Vertex AI is the cleanest enterprise path. For individual developers, VPN plus an international card is the practical reality.

The Asian developer market is using Claude at scale. The tooling is there — it just requires knowing which path to take from where you are sitting.