← The evidence ledger
Evidence row 1475083
Observed , by probe.mcp/1.
- Kind
- mcp.tools
- About
- endpoint 6fb78c50-a755-46da-8589-9742fcb825d4
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 5049c65767c03c6c594066f5140fc0223b11f1149d73a0073032f59425cd2013
- Leaf
- 0x151c2793a009abfe601019714e6e0fcd01cbabad259ba4d2e431c6bd5450210d
What was observed
{
"count": 6,
"tools": [
{
"description": "Compare credit pack prices (extra usage credits sold on top of a subscription, such as ChatGPT credits) across regions, normalised to the price per 100 credits in one currency. Answers questions like \"where are ChatGPT credits cheapest?\".",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"channel": {
"description": "Sales channel: web (ChatGPT website checkout, ChatGPT only) or app_store (iOS in-app purchase). Defaults to web for ChatGPT and app_store for other products.",
"enum": [
"web",
"app_store"
],
"type": "string"
},
"currency": {
"description": "ISO 4217 currency for converted reference prices, e.g. USD, CNY, EUR. Defaults to USD for en and CNY for zh.",
"pattern": "^[A-Z]{3}$",
"type": "string"
},
"limit": {
"default": 10,
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"locale": {
"default": "en",
"description": "Language for region and plan names: en (default) or zh.",
"enum": [
"zh",
"en"
],
"type": "string"
},
"pack": {
"default": "all",
"description": "all (default), unit for single-credit prices, or a pack quantity such as 1000.",
"pattern": "^(?:all|unit|[1-9]\\d{0,30})$",
"type": "string"
},
"page": {
"default": 1,
"maximum": 1000,
"minimum": 1,
"type": "integer"
},
"product": {
"default": "chatgpt",
"description": "Product: chatgpt, claude, gemini, perplexity or grok.",
"enum": [
"chatgpt",
"claude",
"gemini",
"perplexity",
"grok"
],
"type": "string"
},
"region": {
"description": "Optional filter by region code or name.",
"maxLength": 100,
"type": "string"
},
"sort": {
"default": "price_asc",
"description": "price_asc: cheapest per 100 credits first (default); price_desc; region: alphabetical.",
"enum": [
"price_asc",
"price_desc",
"region"
],
"type": "string"
}
},
"type": "object"
},
"name": "compare_credits"
},
{
"description": "Rank the price of one subscription plan (e.g. ChatGPT Plus, Claude Pro, Google AI Pro) across countries and regions, converted to one currency. Answers questions like \"where is ChatGPT Plus cheapest?\" or \"how much is Claude Pro in Turkey?\". Prices are monthly equivalents; for yearly billing the full-year total is also given. Each response includes when the prices and exchange rates were last updated.",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"channel": {
"description": "Sales channel: web (ChatGPT website checkout, ChatGPT only) or app_store (iOS in-app purchase). Defaults to web for ChatGPT and app_store for other products.",
"enum": [
"web",
"app_store"
],
"type": "string"
},
"currency": {
"description": "ISO 4217 currency for converted reference prices, e.g. USD, CNY, EUR. Defaults to USD for en and CNY for zh.",
"pattern": "^[A-Z]{3}$",
"type": "string"
},
"interval": {
"default": "month",
"description": "Billing interval: month (default) or year.",
"enum": [
"month",
"year"
],
"type": "string"
},
"limit": {
"default": 10,
"description": "Rows per page, 1–50.",
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"locale": {
"default": "en",
"description": "Language for region and plan names: en (default) or zh.",
"enum": [
"zh",
"en"
],
"type": "string"
},
"page": {
"default": 1,
"maximum": 1000,
"minimum": 1,
"type": "integer"
},
"plan": {
"description": "Plan key from list_catalog, e.g. plus, pro, business (ChatGPT), claude_pro, gemini_ai_pro, perplexity_pro, supergrok. Defaults to the product's main plan.",
"pattern": "^[a-zA-Z0-9_-]{1,80}$",
"type": "string"
},
"product": {
"default": "chatgpt",
"description": "Product: chatgpt, claude, gemini, perplexity or grok.",
"enum": [
"chatgpt",
"claude",
"gemini",
"perplexity",
"grok"
],
"type": "string"
},
"region": {
"description": "Optional filter by region code, name or currency, e.g. JP, Japan, 日本, EUR.",
"maxLength": 100,
"type": "string"
},
"sort": {
"default": "asc",
"description": "asc: cheapest first (default); desc: most expensive first; name: alphabetical.",
"enum": [
"asc",
"desc",
"name"
],
"type": "string"
},
"tax": {
"default": "all",
"description": "Only regions whose reference price has this tax label.",
"enum": [
"all",
"inclusive",
"exclusive",
"unknown"
],
"type": "string"
}
},
"type": "object"
},
"name": "compare_prices"
},
{
"description": "List the recorded price changes of one plan in one region, newest first, with the previous and new local price. Use it for questions like \"has ChatGPT Plus gotten more expensive in Brazil?\".",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"channel": {
"description": "Sales channel: web (ChatGPT website checkout, ChatGPT only) or app_store (iOS in-app purchase). Defaults to web for ChatGPT and app_store for other products.",
"enum": [
"web",
"app_store"
],
"type": "string"
},
"interval": {
"default": "month",
"description": "Billing interval: month (default) or year.",
"enum": [
"month",
"year"
],
"type": "string"
},
"limit": {
"default": 10,
"maximum": 20,
"minimum": 1,
"type": "integer"
},
"locale": {
"default": "en",
"description": "Language for region and plan names: en (default) or zh.",
"enum": [
"zh",
"en"
],
"type": "string"
},
"plan": {
"description": "Plan key from list_catalog, e.g. plus, pro, business (ChatGPT), claude_pro, gemini_ai_pro, perplexity_pro, supergrok. Defaults to the product's main plan.",
"pattern": "^[a-zA-Z0-9_-]{1,80}$",
"type": "string"
},
"product": {
"default": "chatgpt",
"description": "Product: chatgpt, claude, gemini, perplexity or grok.",
"enum": [
"chatgpt",
"claude",
"gemini",
"perplexity",
"grok"
],
"type": "string"
},
"region": {
"description": "Country or region as an ISO 3166 code (JP), English name (Japan) or Chinese name (日本).",
"maxLength": 60,
"minLength": 1,
"type": "string"
}
},
"required": [
"region"
],
"type": "object"
},
"name": "get_price_history"
},
{
"description": "List monthly subscription price changes AISub recorded across all regions in the last N days, newest first. Use it for questions like \"which countries changed ChatGPT prices this month?\".",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"days": {
"default": 30,
"description": "Look-back window in days, 1–90.",
"maximum": 90,
"minimum": 1,
"type": "integer"
},
"limit": {
"default": 20,
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"locale": {
"default": "en",
"description": "Language for region and plan names: en (default) or zh.",
"enum": [
"zh",
"en"
],
"type": "string"
},
"product": {
"description": "Only changes for this product.",
"enum": [
"chatgpt",
"claude",
"gemini",
"perplexity",
"grok"
],
"type": "string"
}
},
"type": "object"
},
"name": "get_recent_price_changes"
},
{
"description": "Show every plan price of one product in one country or region, for each sales channel and billing interval, with its rank among all regions and its difference from the United States. Answers questions like \"how much does ChatGPT cost in Japan?\" or \"is Claude cheaper in India than in the US?\".",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"currency": {
"description": "ISO 4217 currency for converted reference prices, e.g. USD, CNY, EUR. Defaults to USD for en and CNY for zh.",
"pattern": "^[A-Z]{3}$",
"type": "string"
},
"locale": {
"default": "en",
"description": "Language for region and plan names: en (default) or zh.",
"enum": [
"zh",
"en"
],
"type": "string"
},
"product": {
"default": "chatgpt",
"description": "Product: chatgpt, claude, gemini, perplexity or grok.",
"enum": [
"chatgpt",
"claude",
"gemini",
"perplexity",
"grok"
],
"type": "string"
},
"region": {
"description": "Country or region as an ISO 3166 code (JP), English name (Japan) or Chinese name (日本).",
"maxLength": 60,
"minLength": 1,
"type": "string"
}
},
"required": [
"region"
],
"type": "object"
},
"name": "get_region_prices"
},
{
"description": "List the AI subscription products, sales channels, plan keys, billing intervals and regions that AISub tracks. Call without arguments for an overview; pass a product (and optionally a channel) to also get its region codes and the currencies available for conversion. Use the returned plan keys and region codes with the other tools.",
"inputSchema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"channel": {
"description": "Sales channel: web (ChatGPT website checkout, ChatGPT only) or app_store (iOS in-app purchase). Defaults to web for ChatGPT and app_store for other products.",
"enum": [
"web",
"app_store"
],
"type": "string"
},
"locale": {
"default": "en",
"description": "Language for region and plan names: en (default) or zh.",
"enum": [
"zh",
"en"
],
"type": "string"
},
"product": {
"description": "Product: chatgpt, claude, gemini, perplexity or grok.",
"enum": [
"chatgpt",
"claude",
"gemini",
"perplexity",
"grok"
],
"type": "string"
}
},
"type": "object"
},
"name": "list_catalog"
}
]
}What the leaf hashes
{"body":"5049c65767c03c6c594066f5140fc0223b11f1149d73a0073032f59425cd2013","id":1475083,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793413176507799,"prev":null,"subject":"6fb78c50-a755-46da-8589-9742fcb825d4","subject_kind":"endpoint"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (246033 rows).
- 0x151c4ac954892e94ee65a452489a9997f35008d7c4eafa5f1a7da399f2bb8121
- 0xf6b32dd7c22d17191ba78e24a022531fb1abbe93495a1fb76ea235ecf0123f36
- 0x98b2ea19a0d22647592385bd1b989495953e49c2fb4c448e5bc47ed780bf65ca
- 0x2eb7066feeb2b9e57046169bcc3eea3152eb27728623a567443c6e67699908f6
- 0xf56b405bd90ddc81a3b4037b18e18bf4e463cc76990aad194ad67f748f641371
- 0xf5c90ef0dd78ceefe1ea0e8c4671bbf3d508e548a40430658360b3c7b881613b
- 0xcecf55c405999d427a80e8d93fd78ca98407d0d38eafa92226b7b211dceb4cdd
- 0x8aec023cc8ad7bf0da0c036b16b1042705ce1e943db668cc829ed50781db2135
- 0x857676532309cd3b99d27a5250de8ded55c0bca7e1251609930afdedd79698d4
- 0xc21c039a85662b046b10486308f45fe490ee5d28300a8fbded61a10649304604
- 0x83089b2f1e6a092c7c72a41304ef418058e8ba571e05e233a1a8fdfab934cf9f
- 0xda136ada4a2f6b271a96ac38822fb0e8491f6d58179c5b77280c01de32a2418b
- 0xf2b49afd37f6c7a074cb7e2e9bd6248a3e1bcb90308acf1af6b3be8a3c1b7cfe
- 0x500efd0d65e793a02397af46769412226d4deefe24ac497b68f3a32f6828638e
- 0x95ec49fc7f2c7be30422eaa1d0d6036836dd63ff46a8ed4027258fcf3eb8cf24
- 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
- 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
- 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15
- Day root
- 0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab
- Chained
- 0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980
- Published
- On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0