# com.coinbucha/bitcoin-signals

> Leading non-price Bitcoin signals over MCP: sovereign, hiring, hashrate. Not financial advice.

- name: com.coinbucha/bitcoin-signals
- version: 0.1.1
- connection class: R0 (autonomous)
- trust: 93/100
- quality: 77/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.coinbucha%2Fbitcoin-signals
- tools: https://api.protogrid.dev/v1/servers/com.coinbucha%2Fbitcoin-signals/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "bitcoin-signals": {
      "type": "http",
      "url": "https://coinbucha.com/api/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 85
- provenance: 85
- drivers: +repository +dns-namespace +website +reachable +uptime-100% ~updated-66d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 77/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 79 (weight 30)

- pass `tools.descriptions`: every tool has a description
- warn `tools.description_length`: 2 tools have descriptions over 1,024 characters, which crowds the context
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 9 of 9 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: scan_signals (destructiveHint); get_hiring_signal (destructiveHint); get_sovereign_reserves (destructiveHint); …
- pass `tools.token_cost`: about 2,672 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 75 (weight 15)

- warn `stability.changes`: 18 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 9, about 2,672 tokens to load them all
- tool set hash: bb9a2b86684b46964a21bdf248faf39c
- tools last changed: 2026-10-18T02:44:08.986Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.coinbucha/bitcoin-signals.svg)](https://protogrid.dev/servers/com.coinbucha/bitcoin-signals)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-18 `get_signal_history` changed (description)
  - before: Dated strength history for one CoinBucha signal, newest first. Returns { as_of, signal_type, title, unit, count, points[], truncated, available_points, tier_window_points, freshness, why, disclaimer, cite }, where each point carries date, signal_strength (0-100) and direction (tailwind | headwind | neutral). Example: {"signal_type": "network_hashrate", "days": 30}. `signal_type` is one of sovereign_adoption, hiring_velocity, corporate_treasury, network_hashrate. Anonymous and free-tier callers receive the most recent points only and are told so by `truncated` and `available_points`; no figure is ever altered or interpolated to fit a window. A history question beyond that window is a bulk question: data_contract.bulk_url names the CSV of the signal's dated figures. Observational data; information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
  - after: Dated strength history for one CoinBucha signal, newest first. Returns { as_of, signal_type, title, unit, count, points[], truncated, available_points, tier_window_points, freshness, why, disclaimer, cite }, where each point carries date, signal_strength (0-100) and direction (tailwind | headwind | neutral). Example: {"signal_type": "network_hashrate", "days": 30}. `signal_type` is one of sovereign_adoption, hiring_velocity, corporate_treasury, network_hashrate. Anonymous and free-tier callers receive the most recent points only and are told so by `truncated` and `available_points`; no figure is ever altered or interpolated to fit a window. Beyond that window: a cut answer carries `more`, naming the per-call x402 route /api/paid/signal-history (every signal's full series in one call, USDC) and whether it is open now; or data_contract.bulk_url names the free CSV of the signal's dated figures. Observational data; information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- 2026-10-18 `sovereign_diff` changed (description)
  - before: What changed between two frozen, immutable sovereign-reserve snapshots. Takes optional { from, to } snapshot dates (YYYY-MM-DD); defaults to the two newest. Returns { status, as_of, from, to, counts, added[], removed[], changed[], envelope[], disclaimer, cite }, where each changed row carries country_code, country_name, source_quality { from, to } and changes[] of { field, basis (reported | derived), from, to }. With fewer than two snapshots it returns status "insufficient_snapshots" and diff: null — not an empty diff. Example: {"from": "2026-09-04", "to": "2026-10-01"}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
  - after: What changed between two frozen, immutable sovereign-reserve snapshots. Takes optional { from, to } snapshot dates (YYYY-MM-DD); defaults to the two newest. Returns { status, as_of, from, to, counts, added[], removed[], changed[], envelope[], disclaimer, cite }, where each changed row carries country_code, country_name, source_quality { from, to } and changes[] of { field, basis (reported | derived), from, to }. With fewer than two snapshots it returns status "insufficient_snapshots" and diff: null — not an empty diff. Example: {"from": "2026-09-04", "to": "2026-10-01"}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. The whole frozen series in one call: the per-call x402 route /api/paid/sovereign-snapshots (USDC); the per-date snapshot files stay free. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- 2026-10-09 `get_signal_history` changed (description)
  - before: Dated strength history for one CoinBucha signal, newest first. Returns { as_of, signal_type, title, unit, count, points[], truncated, available_points, tier_window_points, freshness, why, disclaimer, cite }, where each point carries date, signal_strength (0-100) and direction (tailwind | headwind | neutral). Example: {"signal_type": "network_hashrate", "days": 30}. `signal_type` is one of sovereign_adoption, hiring_velocity, corporate_treasury, network_hashrate. Anonymous and free-tier callers receive the most recent points only and are told so by `truncated` and `available_points`; no figure is ever altered or interpolated to fit a window. Observational data; information, not financial advice.
  - after: Dated strength history for one CoinBucha signal, newest first. Returns { as_of, signal_type, title, unit, count, points[], truncated, available_points, tier_window_points, freshness, why, disclaimer, cite }, where each point carries date, signal_strength (0-100) and direction (tailwind | headwind | neutral). Example: {"signal_type": "network_hashrate", "days": 30}. `signal_type` is one of sovereign_adoption, hiring_velocity, corporate_treasury, network_hashrate. Anonymous and free-tier callers receive the most recent points only and are told so by `truncated` and `available_points`; no figure is ever altered or interpolated to fit a window. A history question beyond that window is a bulk question: data_contract.bulk_url names the CSV of the signal's dated figures. Observational data; information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- 2026-10-09 `get_daily_brew` changed (description)
  - before: The day's machine-readable digest of the whole signal set — the CoinBucha Daily Brew. Takes no arguments. Returns { date, btc_price_usd, headline, signals_summary[], attribution, source_terms }, one summary line per signal with its strength, direction and one-line why. Example: {}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice.
  - after: The day's machine-readable digest of the whole signal set — the CoinBucha Daily Brew. Takes no arguments. Returns { date, btc_price_usd, headline, signals_summary[], attribution, source_terms }, one summary line per signal with its strength, direction and one-line why. Example: {}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- 2026-10-09 `get_network_signal` changed (description)
  - before: Bitcoin network hashrate level and trend, derived from difficulty (expected, 2016-block epoch). hashrate_eh = difficulty × 2^32 / 600 s for the epoch in force, read from block headers — an expected rate, not a measured one. Takes no arguments. Returns { as_of, hashrate_eh (exahashes per second), pct_30d, pct_90d, hashrate_source, basis, difficulty, difficulty_height, difficulty_source_url, why, disclaimer }. Example: {}. Information, not financial advice.
  - after: Bitcoin network hashrate level and trend, derived from difficulty (expected, 2016-block epoch). hashrate_eh = difficulty × 2^32 / 600 s for the epoch in force, read from block headers — an expected rate, not a measured one. Takes no arguments. Returns { as_of, hashrate_eh (exahashes per second), pct_30d, pct_90d, hashrate_source, basis, difficulty, difficulty_height, difficulty_source_url, why, disclaimer }. Example: {}. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- 2026-10-09 `get_etf_flows` changed (description)
  - before: RETIRED: this tool is no longer advertised and serves no flow figures. No spot-Bitcoin-ETF flow source is available that is both key-free and permitted to redistribute, so CoinBucha never had a licensed figure to serve here. It remains callable so existing integrations do not break: it takes no arguments and returns { available: false, status, as_of, date_basis, unit, note, disclaimer }, stating the absence explicitly. Read that absence as absent — never as a zero flow. For live signals use scan_signals, get_sovereign_reserves, get_treasury_holdings, get_hiring_signal, get_network_signal or get_daily_brew. Example: {}. Information, not financial advice.
  - after: RETIRED: this tool is no longer advertised and serves no flow figures. No spot-Bitcoin-ETF flow source is available that is both key-free and permitted to redistribute, so CoinBucha never had a licensed figure to serve here. It remains callable so existing integrations do not break: it takes no arguments and returns { available: false, status, as_of, date_basis, unit, note, disclaimer }, stating the absence explicitly. Read that absence as absent — never as a zero flow. For live signals use scan_signals, get_sovereign_reserves, get_treasury_holdings, get_hiring_signal, get_network_signal or get_daily_brew. Example: {}. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- 2026-10-09 `get_treasury_holdings` changed (description)
  - before: Bitcoin held on the balance sheets of tracked public companies, in aggregate and by largest holder. Takes no arguments. Returns { as_of, total_btc, company_count, total_value_usd, top[], why, disclaimer, attribution, source_terms }, where top[] lists the largest holders as { name, symbol, btc }. Example: {}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice.
  - after: Bitcoin held on the balance sheets of tracked public companies, in aggregate and by largest holder. Takes no arguments. Returns { as_of, total_btc, company_count, total_value_usd, top[], why, disclaimer, attribution, source_terms }, where top[] lists the largest holders as { name, symbol, btc }. Example: {}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- 2026-10-09 `sovereign_diff` changed (description)
  - before: What changed between two frozen, immutable sovereign-reserve snapshots. Takes optional { from, to } snapshot dates (YYYY-MM-DD); defaults to the two newest. Returns { status, as_of, from, to, counts, added[], removed[], changed[], envelope[], disclaimer, cite }, where each changed row carries country_code, country_name, source_quality { from, to } and changes[] of { field, basis (reported | derived), from, to }. With fewer than two snapshots it returns status "insufficient_snapshots" and diff: null — not an empty diff. Example: {"from": "2026-09-04", "to": "2026-10-01"}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice.
  - after: What changed between two frozen, immutable sovereign-reserve snapshots. Takes optional { from, to } snapshot dates (YYYY-MM-DD); defaults to the two newest. Returns { status, as_of, from, to, counts, added[], removed[], changed[], envelope[], disclaimer, cite }, where each changed row carries country_code, country_name, source_quality { from, to } and changes[] of { field, basis (reported | derived), from, to }. With fewer than two snapshots it returns status "insufficient_snapshots" and diff: null — not an empty diff. Example: {"from": "2026-09-04", "to": "2026-10-01"}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- 2026-10-09 `get_sovereign_reserves` changed (description)
  - before: Nation-state Bitcoin holdings, ranked largest first. Returns { as_of, btc_price_usd, count, sovereigns[], disclaimer, attribution, source_terms }; each row carries country_name, country_code, holdings_btc, status, tier (1 = largest holders), framework, sources[], its own as_of, and source_quality (primary = confirmed against the state's own publication; secondary = reported, not confirmed at source — derived from that row's sources[]). Filter by country name or ISO code, or by tier. Example: {"country": "US"} or {"tier": 1} — call with {} for the full ranking. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice.
  - after: Nation-state Bitcoin holdings, ranked largest first. Returns { as_of, btc_price_usd, count, sovereigns[], disclaimer, attribution, source_terms }; each row carries country_name, country_code, holdings_btc, status, tier (1 = largest holders), framework, sources[], its own as_of, and source_quality (primary = confirmed against the state's own publication; secondary = reported, not confirmed at source — derived from that row's sources[]). Filter by country name or ISO code, or by tier. Example: {"country": "US"} or {"tier": 1} — call with {} for the full ranking. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- 2026-10-09 `get_hiring_signal` changed (description)
  - before: Hiring velocity across tracked Bitcoin and crypto-infrastructure employers, counted from their live ATS boards. Returns { as_of, companies[], note, why, disclaimer }; each company carries company, ticker, category, ats, careers_url, open_roles, open_roles_30d_ago, open_roles_90d_ago and the derived delta_30d, delta_90d and pct_30d. Example: {"company": "coinbase"} for one employer, or {} for every employer tracked. When a company filter matches no tracked employer the response adds coverage_note and tracked_count, saying that the name is outside the tracked set — a limit of coverage, not a finding about whether that company is hiring. Information, not financial advice.
  - after: Hiring velocity across tracked Bitcoin and crypto-infrastructure employers, counted from their live ATS boards. Returns { as_of, companies[], note, why, disclaimer }; each company carries company, ticker, category, ats, careers_url, open_roles, open_roles_30d_ago, open_roles_90d_ago and the derived delta_30d, delta_90d and pct_30d. Example: {"company": "coinbase"} for one employer, or {} for every employer tracked. When a company filter matches no tracked employer the response adds coverage_note and tracked_count, saying that the name is outside the tracked set — a limit of coverage, not a finding about whether that company is hiring. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.

Full history: https://api.protogrid.dev/v1/servers/com.coinbucha%2Fbitcoin-signals/changes

## Remotes

- https://coinbucha.com/api/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (9)

- `get_daily_brew`: The day's machine-readable digest of the whole signal set — the CoinBucha Daily Brew. Takes no arguments. Returns { date, btc_price_usd, headline, signals_summary[], attribution, source_terms }, one summary line per signal with its strength, direction and one-line why. Example: {}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- `get_etf_flows`: RETIRED: this tool is no longer advertised and serves no flow figures. No spot-Bitcoin-ETF flow source is available that is both key-free and permitted to redistribute, so CoinBucha never had a licensed figure to serve here. It remains callable so existing integrations do not break: it takes no arguments and returns { available: false, status, as_of, date_basis, unit, note, disclaimer }, stating the absence explicitly. Read that absence as absent — never as a zero flow. For live signals use scan_signals, get_sovereign_reserves, get_treasury_holdings, get_hiring_signal, get_network_signal or get_daily_brew. Example: {}. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- `get_hiring_signal`: Hiring velocity across tracked Bitcoin and crypto-infrastructure employers, counted from their live ATS boards. Returns { as_of, companies[], note, why, disclaimer }; each company carries company, ticker, category, ats, careers_url, open_roles, open_roles_30d_ago, open_roles_90d_ago and the derived delta_30d, delta_90d and pct_30d. Example: {"company": "coinbase"} for one employer, or {} for every employer tracked. When a company filter matches no tracked employer the response adds coverage_note and tracked_count, saying that the name is outside the tracked set — a limit of coverage, not a finding about whether that company is hiring. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- `get_network_signal`: Bitcoin network hashrate level and trend, derived from difficulty (expected, 2016-block epoch). hashrate_eh = difficulty × 2^32 / 600 s for the epoch in force, read from block headers — an expected rate, not a measured one. Takes no arguments. Returns { as_of, hashrate_eh (exahashes per second), pct_30d, pct_90d, hashrate_source, basis, difficulty, difficulty_height, difficulty_source_url, why, disclaimer }. Example: {}. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- `get_signal_history`: Dated strength history for one CoinBucha signal, newest first. Returns { as_of, signal_type, title, unit, count, points[], truncated, available_points, tier_window_points, freshness, why, disclaimer, cite }, where each point carries date, signal_strength (0-100) and direction (tailwind | headwind | neutral). Example: {"signal_type": "network_hashrate", "days": 30}. `signal_type` is one of sovereign_adoption, hiring_velocity, corporate_treasury, network_hashrate. Anonymous and free-tier callers receive the most recent points only and are told so by `truncated` and `available_points`; no figure is ever altered or interpolated to fit a window. Beyond that window: a cut answer carries `more`, naming the per-call x402 route /api/paid/signal-history (every signal's full series in one call, USDC) and whether it is open now; or data_contract.bulk_url names the free CSV of the signal's dated figures. Observational data; information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- `get_sovereign_reserves`: Nation-state Bitcoin holdings, ranked largest first. Returns { as_of, btc_price_usd, count, sovereigns[], disclaimer, attribution, source_terms }; each row carries country_name, country_code, holdings_btc, status, tier (1 = largest holders), framework, sources[], its own as_of, and source_quality (primary = confirmed against the state's own publication; secondary = reported, not confirmed at source — derived from that row's sources[]). Filter by country name or ISO code, or by tier. Example: {"country": "US"} or {"tier": 1} — call with {} for the full ranking. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- `get_treasury_holdings`: Bitcoin held on the balance sheets of tracked public companies, in aggregate and by largest holder. Takes no arguments. Returns { as_of, total_btc, company_count, total_value_usd, top[], why, disclaimer, attribution, source_terms }, where top[] lists the largest holders as { name, symbol, btc }. Example: {}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- `scan_signals`: Ranked cross-signal feed of CoinBucha's leading, non-price Bitcoin indicators. Returns { as_of, btc_price_usd, count, signals[], disclaimer, attribution, source_terms }, where each signal carries id, type, title, value, unit, signal_strength (0-100), direction (tailwind | headwind | neutral), a one-line why, sources[] and its own as_of. Optional filters narrow by strength, direction or signal type. Example: {"min_strength": 70, "direction": "tailwind"} — call with {} for the full ranked list. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. Observational data; information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.
- `sovereign_diff`: What changed between two frozen, immutable sovereign-reserve snapshots. Takes optional { from, to } snapshot dates (YYYY-MM-DD); defaults to the two newest. Returns { status, as_of, from, to, counts, added[], removed[], changed[], envelope[], disclaimer, cite }, where each changed row carries country_code, country_name, source_quality { from, to } and changes[] of { field, basis (reported | derived), from, to }. With fewer than two snapshots it returns status "insufficient_snapshots" and diff: null — not an empty diff. Example: {"from": "2026-09-04", "to": "2026-10-01"}. CoinGecko values carry attribution: "Powered by CoinGecko" and source_terms. The whole frozen series in one call: the per-call x402 route /api/paid/sovereign-snapshots (USDC); the per-date snapshot files stay free. Information, not financial advice. Every answer carries data_contract { source, as_of, status, corrections_url, license }. This server answers bounded questions, one question, one answer; for bulk, history, backfills and scheduled pulls use the CSVs and datapackage.json at https://coinbucha.com/data.