Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Changed the definition of "address_report", "gas_now", "token_balance" and 2 more
⟨5 unchanged words⟩ ,"is_contract":{},"network":{},"provenance":{"description":"Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.","properties":{"may_be_cached":{"type":"boolean"},"publisher":{"type":"string"},"served_at":{"format":"date-time","type":"string"},"upstream":{"items":{"type":"string"},"type":"array"}},"type":"object"},"tx_count":{},"usdc_balance":{}},"type":"object"}
⟨4 unchanged words⟩ {},"gas_price_wei":{},"network":{},"provenance":{"description":"Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.","properties":{"may_be_cached":{"type":"boolean"},"publisher":{"type":"string"},"served_at":{"format":"date-time","type":"string"},"upstream":{"items":{"type":"string"},"type":"array"}},"type":"object"}},"type":"object"}
⟨6 unchanged words⟩ ,"holder":{},"network":{},"provenance":{"description":"Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.","properties":{"may_be_cached":{"type":"boolean"},"publisher":{"type":"string"},"served_at":{"format":"date-time","type":"string"},"upstream":{"items":{"type":"string"},"type":"array"}},"type":"object"},"symbol":{},"token":{}},"type":"object"}
⟨5 unchanged words⟩ ,"name":{},"network":{},"provenance":{"description":"Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.","properties":{"may_be_cached":{"type":"boolean"},"publisher":{"type":"string"},"served_at":{"format":"date-time","type":"string"},"upstream":{"items":{"type":"string"},"type":"array"}},"type":"object"},"symbol":{},"token":{},"total_supply" ⟨2 unchanged words⟩
⟨7 unchanged words⟩ ,"hash":{},"network":{},"provenance":{"description":"Where this answer came from. served_at is when Datakoot answered (UTC); upstream lists the official sources consulted. Datakoot may serve a briefly cached copy, so the source's own observation can be older than served_at.","properties":{"may_be_cached":{"type":"boolean"},"publisher":{"type":"string"},"served_at":{"format":"date-time","type":"string"},"upstream":{"items":{"type":"string"},"type":"array"}},"type":"object"},"status":{},"to":{},"value_eth" ⟨2 unchanged words⟩
Changed the definition of "address_report", "gas_now", "token_balance" and 2 more
One-call snapshot ofaany Base address: ETH balance, USDC balance,txtransaction count, and whether it is acontract.smart contract or a regular wallet. Use it to sanity-check a counterparty or a payment address before sending funds. Input: a 0x address.
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{"additionalProperties":true,"properties":{"address":{},"eth_balance":{},"is_contract":{},"network":{},"tx_count":{},"usdc_balance":{}},"type":"object"}Changed the definition of "address_report", "gas_now", "token_balance" and 2 more
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Address Reportbefore
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{"destructiveHint":false,"idempotentHint":true,"openWorldHint":true,"readOnlyHint":true,"title":"Address Report"}before
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Certificate changed, valid to 2026-12-22
Certificate recorded, valid to 2026-10-24
Authorization not required
First tool surface recorded: 5 tools (server version 2.0.0)
Showing the latest 7 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed
Current gas price on the Base networkgas(Coinbase'spriceEthereum(L2), in gwei and wei)., read live from a Base RPC node. Use before sending a Base transaction or estimating its cost. Takes no input.
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{"additionalProperties":true,"properties":{"gas_price_gwei":{},"gas_price_wei":{},"network":{}},"type":"object"}ERC-20 tokenHowbalancemuch of an ERC-20 token aholderwallet holds on Base, returned both human-formatted (formattedusing+therawtoken's decimals).and raw. Pass the token contract address and the holder address, both 0x + 40 hex. Example: USDC 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913.
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{"additionalProperties":true,"properties":{"balance":{},"balance_raw":{},"decimals":{},"holder":{},"network":{},"symbol":{},"token":{}},"type":"object"}ERC-20 token metadata on Base, read on-chain: name, symbol, decimals, and totalsupply.supply, plus whether the address really behaves like an ERC-20. Use it to verify a token contract before trusting or displaying it. Input: the token contract address (0x + 40 hex).
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{"additionalProperties":true,"properties":{"decimals":{},"is_erc20":{},"name":{},"network":{},"symbol":{},"token":{},"total_supply":{}},"type":"object"}Look up a Base transaction by hash:statusand report whether it is pending, succeeded, or failed, with from, to, value, block number, and gas used. Use it to confirm a payment or contract call landed. Input: the transaction hash (0x + 64 hex; the 0x is optional).
{"properties":{"hash":{"description":"Transaction hashon Base:, 0x followed by 64 hexcharacters.characters (the 0x prefix is optional).","type":"string"}},"required": ⟨3 unchanged words⟩
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{"additionalProperties":true,"properties":{"block_number":{},"found":{},"from":{},"gas_used":{},"hash":{},"network":{},"status":{},"to":{},"value_eth":{}},"type":"object"}before
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{"destructiveHint":false,"idempotentHint":true,"openWorldHint":true,"readOnlyHint":true,"title":"Gas Now"}before
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Token Balancebefore
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{"destructiveHint":false,"idempotentHint":true,"openWorldHint":true,"readOnlyHint":true,"title":"Token Balance"}before
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Token Infobefore
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{"destructiveHint":false,"idempotentHint":true,"openWorldHint":true,"readOnlyHint":true,"title":"Token Info"}before
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Tx Statusbefore
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{"destructiveHint":false,"idempotentHint":true,"openWorldHint":true,"readOnlyHint":true,"title":"Tx Status"}