Search / io.github.physics-star-cat/databutler-us-rates
protogridR0· no sign-inUS federal 2026 tax brackets, standard deductions, payroll and retirement limits, sourced.
v1.0.0 · active · repository · website · descriptor JSON · versions
{
"mcpServers": {
"databutler-us-rates": {
"type": "http",
"url": "https://databutler.dev/api/mcp/us-rates"
}
}
}claude mcp add --transport http databutler-us-rates https://databutler.dev/api/mcp/us-rates[mcp_servers.databutler-us-rates]
url = "https://databutler.dev/api/mcp/us-rates"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"databutler-us-rates": {
"type": "remote",
"url": "https://databutler.dev/api/mcp/us-rates",
"enabled": true
}
}
}{
"mcpServers": {
"databutler-us-rates": {
"type": "http",
"url": "https://databutler.dev/api/mcp/us-rates"
}
},
"deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=databutler-us-rates&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZGF0YWJ1dGxlci5kZXYvYXBpL21jcC91cy1yYXRlcyJ9"
}{
"servers": {
"databutler-us-rates": {
"type": "http",
"url": "https://databutler.dev/api/mcp/us-rates"
}
}
}{
"mcpServers": {
"databutler-us-rates": {
"httpUrl": "https://databutler.dev/api/mcp/us-rates"
}
}
}extensions:
"databutler-us-rates":
enabled: true
name: "databutler-us-rates"
type: streamable_http
uri: "https://databutler.dev/api/mcp/us-rates"
timeout: 300
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28protocol.statelessonly applies to 2026-07-28 serversprotocol.transportstreamable HTTPprotocol.list_ttlonly applies to 2026-07-28 serversauth.prm, auth.as_metadata, auth.cimdno remote uses OAuthauth.secret_in_urlno templated URLtools.descriptionsevery tool has a descriptiontools.description_length1 tools have descriptions over 1,024 characters, which crowds the contexttools.schemasevery tool has an object input schematools.annotations1 of 1 tools declare readOnlyHint or destructiveHinttools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHinttools.token_costabout 389 tokens to load every tooltools.api_dumptools are not a one-to-one API dumpstability.changesno tool changes in 30 daysstability.rug_pullno tool changed its meaning under the same namedeps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI packageNo tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.
Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.
+repository +namespace-matches-repo +website +reachable +uptime-100% +updated-16d-ago -duplicate-repo(16 names)
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
| remote | auth | reachable | uptime 30d | p50 | protocol | last ok |
|---|---|---|---|---|---|---|
https://databutler.dev/api/mcp/us-rates streamable-http | none | yes | 100% | 195 ms | 2025-11-25 | 2026-10-20 |
us_rates_lookupread-only | Current US federal (tax year 2026) rates and thresholds read from the IRS revenue procedures and notices, SSA's Federal Register notice and irs.gov pages, each figure with its source URL, the quoted sentence or table row, verifiedDate and the prior-year value where one exists. Categories: income-tax (rate schedules for Single, Married filing jointly, Head of household and Married filing separately as bracket rows, standard deduction by filing status, additional and dependent standard deduction, top rate), social-security (OASDI wage base, employee and employer rates, COLA, quarter of coverage), medicare (rate, Additional Medicare Tax rate and thresholds by filing status, employer withholding threshold), retirement (401(k)/403(b)/457(b)/TSP deferral limit, age-50 and age-60–63 catch-ups, Roth catch-up wage threshold, § 415(c) and compensation limits, IRA and IRA catch-up, SIMPLE, highly compensated employee), hsa (contribution limits, HDHP minimum deductible and out-of-pocket maximum, excepted-benefit HRA), estate-gift (basic exclusion, GST exemption, annual gift exclusions). Federal only: state income taxes, AMT, EITC and capital-gains brackets are not covered. An unknown category answers covered:false with the nearest keys. |
Schemas: list_tools.
15 other active names share this repository (showing 10): io.github.physics-star-cat/databutler, io.github.physics-star-cat/databutler-calendar, io.github.physics-star-cat/databutler-de-rates, io.github.physics-star-cat/databutler-facts, io.github.physics-star-cat/databutler-policy-rates, io.github.physics-star-cat/databutler-provenance, io.github.physics-star-cat/databutler-software-eol, io.github.physics-star-cat/databutler-stats, io.github.physics-star-cat/databutler-tax, io.github.physics-star-cat/databutler-uk-exam-dates
And 11 more from this publisher.
{
"name": "io.github.physics-star-cat/databutler-us-rates",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://databutler.dev/api/mcp/us-rates",
"type": "streamable-http"
}
],
"version": "1.0.0",
"repository": {
"url": "https://github.com/physics-star-cat/databutler",
"source": "github"
},
"websiteUrl": "https://databutler.dev/api",
"description": "US federal 2026 tax brackets, standard deductions, payroll and retirement limits, sourced."
}