← The evidence ledger
Evidence row 1033044
Observed , by sync.mcp_registry/1.
- Kind
- listing
- About
- source_record mcp_registry:io.github.nickgeorgeseo/fieldtwin
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- a5ec44fd6f21a66adf270fa12566b893fe306ba667be9cc7dc4629b1bb6461a9
- Leaf
- 0x9d559ef96cfae2451c7d3e93de91088cd258ef4a8885246cf922fbc559adf5e7
What was observed
{
"endpoints": [
[
"web",
"https://nickgeorgeai.com/fieldtwin"
]
],
"name": "fieldtwin",
"owner_address": null,
"raw": {
"_meta": {
"io.modelcontextprotocol.registry/official": {
"isLatest": true,
"publishedAt": "2026-10-29T14:18:49.354165Z",
"status": "active",
"statusChangedAt": "2026-10-29T14:18:49.354165Z",
"updatedAt": "2026-10-29T14:18:49.354165Z"
}
},
"server": {
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"description": "Local, stateful twins of the Jobber, Housecall Pro, and QuickBooks Online APIs, for agents and tests",
"name": "io.github.nickgeorgeseo/fieldtwin",
"packages": [
{
"environmentVariables": [
{
"default": "4010",
"description": "The port the twin listens on. The MCP server starts a twin of its own, so pick another port if one already runs on 4010.",
"format": "number",
"name": "FIELDTWIN_PORT"
},
{
"default": "127.0.0.1",
"description": "The address the twin listens on. Keep the loopback address unless something else must reach the twin.",
"name": "FIELDTWIN_HOST"
},
{
"choices": [
"any-token",
"oauth"
],
"default": "any-token",
"description": "any-token accepts any Bearer token; oauth accepts only tokens from the twin's OAuth endpoints.",
"name": "FIELDTWIN_AUTH"
},
{
"default": "42",
"description": "Which fake business to generate: the same seed builds the same world.",
"format": "number",
"name": "FIELDTWIN_SEED"
}
],
"identifier": "fieldtwin",
"packageArguments": [
{
"type": "positional",
"value": "mcp"
}
],
"registryBaseUrl": "https://registry.npmjs.org",
"registryType": "npm",
"runtimeHint": "npx",
"transport": {
"type": "stdio"
},
"version": "0.5.2"
}
],
"repository": {
"id": "1412581362",
"source": "github",
"url": "https://github.com/nickgeorgeseo/fieldtwin"
},
"title": "fieldtwin",
"version": "0.5.2",
"websiteUrl": "https://nickgeorgeai.com/fieldtwin"
}
},
"source": "mcp_registry",
"summary": "Local, stateful twins of the Jobber, Housecall Pro, and QuickBooks Online APIs, for agents and tests"
}What the leaf hashes
{"body":"a5ec44fd6f21a66adf270fa12566b893fe306ba667be9cc7dc4629b1bb6461a9","id":1033044,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793286809511873,"prev":null,"subject":"mcp_registry:io.github.nickgeorgeseo/fieldtwin","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.