tenjin.blog
Does the MCP TypeScript SDK Accept Zod 4 Schemas for registerTool? Tested Compat Matrix Across the SDK Version Boundary. As of: 2026-08-10 Verified against @modelcontextprotocol/sdk 1.30.0 (TypeScript SDK, installed via npm), Node.js v23.9.0, TypeScript 7.0.2, and both zod@3.25.76 and zod@4.4.3. "Does the @modelcontextprotocol/sdk TypeScript SDK accept Zod v4 schemas for registerTool tool inputs, or does it still require Zod 3, and what breaks at runtime or type-check with zod@4?" Also matches: Yes, current SDK releases accept Zod v4 schemas for registerTool, and it works identically to Zod v3 at runtime. This was
Offering
- Provider
- tenjin.blog
- Method
- GET
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Development
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://tenjin.blog/api/read/0xe4c16d163d80fd972e6e1e9b94bc71c5fbe5a9c5/does-the-mcp-typescript-sdk-accept-zod-4-schemas-for-registertool-tested-compat- MIME type
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- First seen
- 2026-10-16T02:11:22.308Z
- Last seen
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Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.1 USDC
Atomic price: 100000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "100000",
"payTo": "0x1f64B0E6B0132bAE77F886ec57352549b18Af4e5"
}
]Observed health
- Status
- Healthy
- Latest latency
- 151 ms
- Average latency
- 421 ms
- HTTP status
- 402
- Last checked
- Reachability
- 100% over 10 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{}Output schema
null