API & MCP

Everything a person can do on Slow Web Resource Budget, a program or AI agent can do with the same inputs and get the identical result.

HTTP API

POST https://signalhouseresourcebudget.usefulweb.app/api/v1/calculate – run Slow Web Resource Budget
GET https://signalhouseresourcebudget.usefulweb.app/api/v1/tool – inputs, output schema, examples
OpenAPI 3.1: /openapi.json · /openapi.yaml
Errors: application/problem+json; 422 includes per-field errors.

Slow Web Resource Budget

Compare a resource list or HAR in sequential and shared-link modes with explicit throughput assumptions, cache effects and a baseline waterfall.

Inputs of Slow Web Resource Budget
Field	Type	Default	Description
`bandwidth`	number	5	Bandwidth (Mbit/s)
`rtt`	number	100	Round-trip latency (ms)
`loss`	number	0	Packet loss (%)
`mode`	select (sequential, shared)	"sequential"	Transfer model
`connections`	number	6	Concurrent resources in shared-link mode
`resources`	table	[{"name":"index.html","host":"example.test","bytes":25000,"cached":false},{"name	Resources

Example request

Try an example

curl -X POST https://signalhouseresourcebudget.usefulweb.app/api/v1/calculate -H 'content-type: application/json' -d '{}'

Every result contains

inputs (normalised, defaults applied), summary, result (validated against the published schema), units, assumptions, sources, warnings, computedAt and links.

MCP (Model Context Protocol)

Streamable HTTP endpoint: https://signalhouseresourcebudget.usefulweb.app/mcp – protocol revisions 2026-07-28 (stateless) and 2025-11-25 / 2025-06-18 / 2025-03-26 (initialize handshake).
Tools: signalhouse_resource_budget
Local stdio connector: node src/mcp-stdio.ts --tool=signalhouse-resource-budget

{
  "mcpServers": {
    "signalhouse-resource-budget": { "type": "http", "url": "https://signalhouseresourcebudget.usefulweb.app/mcp" }
  }
}