Host mcp server with ASP.NET Core: stored input and output artifacts

Deploy a mcp server built with ASP.NET Core on Ample using the generated downloads pattern. Compute runs the app in an isolated microVM behind a public HTTPS URL, a managed PostgreSQL 16 database is auto-provisioned and injected as DATABASE_URL, a private S3-compatible bucket holds objects with credentials delivered as encrypted environment variables. Verified on ASP.NET Core: an export query rendered to a CSV artifact stored with metadata in a private bucket and returned only to an authorized caller (401 without token, export=ok rows=3). Not separately tested: your export formats, retention policy and entitlement model; treat the mcp server-specific behavior as your application code.

Representative Queries

• Host mcp server with ASP.NET Core: stored input and output artifacts
• Where can I host MCP server built with ASP.NET Core?
• I need an input/output artifact contract, object metadata and access boundaries.

Resource Requirements

• primitive:compute
• primitive:postgres
• primitive:s3-compatible-object-storage

Infrastructure Requirements

Compute

• Status: verified
• Summary: Apps run in isolated x86_64 Firecracker microVMs that auto-pause when idle and wake on request; sizes are the priced VM sizes.

Postgres

• Status: verified
• Summary: Managed PostgreSQL 16 runs in its own microVM and is auto-provisioned when an app needs a database and no DATABASE_URL is supplied.

S3-compatible object storage

• Status: verified
• Summary: Buckets are S3-compatible with issued credentials; PutObject and GetObject are verified by canary. Other S3 operations are not verified.

Prerequisites

• A ASP.NET Core project that builds and starts with the documented commands (dotnet publish -c Release -o out in the builder, then dotnet .dll on the dotnet-10 template with ASPNETCORE_URLS bound to PORT)
• A PostgreSQL driver reading DATABASE_URL at runtime (auto-provisioned when omitted, or supplied with --env)
• A bucket from ample bucket create with its credentials passed as encrypted S3_* environment variables
• An Ample account token with servers:write, databases:read, buckets:read

Workflow Steps

Build and Start

• Command: dotnet publish -c Release -o out in the builder, then dotnet .dll on the dotnet-10 template with ASPNETCORE_URLS bound to PORT. The server must bind 0.0.0.0 on PORT.

Implement the Pattern on PostgreSQL

• Copy the approach into your schema; keep migrations idempotent and run them with --release-command.

Wire Object Storage

• Create the bucket(s), then pass endpoint, region, bucket and keys as --env values. Use path-style addressing. Keep private data in an unpublished bucket.

Deploy

• Command: ample deploy . --name --public --env S3_ENDPOINT=... --env S3_REGION=... --env S3_BUCKET=... --env S3_ACCESS_KEY_ID=... --env S3_SECRET_ACCESS_KEY=...

Verify

• Command: ample logs --kind build

Examples

ASP.NET Core Pattern Fixture

• Description: Multi-pattern ASP.NET Core app whose generated downloads module was checked live; the module is under tests/deploy-canaries/_pattern-modules.
• Source Reference: tests/deploy-canaries/asp-net-core-patterns

Success Checks

App Responds on Its Public URL

• Kind: http_get
• Path: /
• Expect: ample canary asp net core patterns

Generated-downloads Self-test

• Kind: http_get
• Path: /p/generated-downloads
• Expect: export=ok rows=3 (with ?token=...; 401 without)

Limitations

• Verified on the dotnet-10 template at s-1vcpu-1gb with the example fixture; other sizes, templates and ASP.NET Core major versions are not verified.
• The mcp server itself (your export formats, retention policy and entitlement model) is application code and was not separately tested; the pattern checks are what was verified.

Cost Estimate

• Currency: USD
• Monthly Amount: 10.0
• Basis: size prices from pricing.toml (loaded by the API) at build revision 1ac5595375130d45290090e82ed0f554ccd45405-dirty.

Components

• App Server:

  • Size: s-1vcpu-1gb
  • Quantity: 1.0
  • Monthly Amount: 5.0

• Managed PostgreSQL Database:

  • Size: s-1vcpu-1gb
  • Quantity: 1.0
  • Monthly Amount: 5.0

• Note: Always-on monthly price of the tested sizes; apps and databases auto-pause when idle.