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Agents pay per call over HTTP 402: 8,600+ API routes, owner-signed budgets, signed receipts.
tab is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 78/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding tab to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
npx -y paidwithtab@2.3.1Review the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-10-23T09:16:01.432339Z",
"publishedAt": "2026-10-23T09:16:01.432339Z",
"statusChangedAt": "2026-10-23T09:16:01.432339Z"
}
},
"server": {
"name": "io.github.paidwithtab/tab",
"title": "tab",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"version": "2.3.1",
"packages": [
{
"version": "2.3.1",
"transport": {
"type": "stdio"
},
"identifier": "paidwithtab",
"registryType": "npm",
"packageArguments": [
{
"type": "positional",
"value": "mcp"
}
],
"environmentVariables": [
{
"name": "TAB_AGENT",
"description": "Agent key file. Default ~/.tab/agent.json, which `npx paidwithtab init` creates with a mandate and starter credits."
},
{
"name": "TAB_MANDATE",
"description": "Owner-signed mandate file. Default ~/.tab/mandate.json."
},
{
"name": "TAB_MAX_PER_CALL",
"description": "Refuse any single call priced above this many dollars, e.g. 0.05."
},
{
"name": "TAB_CATALOG",
"description": "Catalog to search. Default https://paidwithtab.com."
}
]
}
],
"repository": {
"url": "https://github.com/paidwithtab/tab",
"source": "github"
},
"websiteUrl": "https://paidwithtab.com",
"description": "Agents pay per call over HTTP 402: 8,600+ API routes, owner-signed budgets, signed receipts."
}
}