Verified EVM, Aptos and finance tools for AI agents; gas for 14 chains. Pay per call (x402).
Connect Remote server
claude mcp add --transport http tools https://logicnodes.io/mcp/v2{
"mcpServers": {
"tools": {
"url": "https://logicnodes.io/mcp/v2"
}
}
}{
"servers": {
"tools": {
"type": "http",
"url": "https://logicnodes.io/mcp/v2"
}
}
}Settings > Connectors > Add custom connector
URL: https://logicnodes.io/mcp/v2Tools 80 found in our last check
get_gas_pricesCurrent gas price estimates for an EVM chain in Blocknative-compatible format (gwei). Default chain is Ethereum (1). Supported chain IDs: 1, 8453, 42161, 10, 137, 56, 43114, 59144, 534352, 324, 100, 81457, 5000, 42220.
list_supported_chainsEVM chains with live gas data, with chain IDs.
verify_answer[FREE: 25 calls/day, then $0.01 USDC per call via x402] Before your agent sends a figure to a customer, a ledger or another agent, check it. Each claim is an expression and the value you believe it equals: plain arithmetic ("1299.99 * 3 * 1.0825" expected "4221.87") or over your…
table_calc[FREE: 25 calls/day, then $0.01 USDC per call via x402] Give it your rows (JSON or CSV) and the figures you need; it returns them computed exactly (decimal arithmetic, no floating point), so your agent never has to add up a column in its head. Metrics are expressions: sum([Amoun…
quote_check[FREE: 25 calls/day, then $0.01 USDC per call via x402] Before your agent quotes, cites or summarises a document, check each quote against the source text. Per quote: "exact" (verbatim, with location), "same_words" (only capitalisation, spacing or punctuation differ), "numbers_d…
reconcile[FREE: 25 calls/day, then $0.05 USDC per call via x402] Match two lists that should agree, line by line, and list everything that does not: bank statement vs ledger, invoices vs payments received, payouts vs orders. Rules, in order: same reference and amount; same reference but…
json_check[FREE: 25 calls/day, then $0.002 USDC per call via x402] Check structured output before you use or send it. Give the raw text (a model reply works: set extract to pull the JSON out of ```json fences or surrounding prose) or the parsed data, and optionally a JSON Schema. Returns…
invoice_check[FREE: 25 calls/day, then $0.01 USDC per call via x402] Line totals (qty x unit price, minus line discounts), subtotal, invoice discount (spread over the lines by value), tax per invoice or per line (the usual source of 1-cent differences: both are shown), shipping (taxable or n…
timesheet_calc[FREE: 25 calls/day, then $0.02 USDC per call via x402] From clock-in/clock-out entries per worker: hours worked (breaks removed, overnight shifts handled), optional punch rounding (e.g. to the nearest 15 minutes), regular / overtime / double-time hours under the rules you set (…
list_ops[FREE: 25 calls/day, then $0.002 USDC per call via x402] Set and order operations on lists of up to 50000 items, done exactly (language models drop or duplicate items in long lists). ops: dedupe (with the duplicates and their counts), sort (natural order: item2 before item10), u…
contact_normalize[FREE: 25 calls/day, then $0.005 USDC per call via x402] Normalise contact lists before they go into a CRM or a mail/SMS tool: emails (trimmed, display names and mailto: removed, domain lower-cased, syntax checked, typo domains like gmial.com flagged with a suggestion, role inbo…
find_free_slots[FREE: 25 calls/day, then $0.005 USDC per call via x402] Finds meeting slots inside every participant's working hours (each in their own IANA time zone, daylight-saving changes included) that avoid all their busy times (optionally with a buffer). Returns each slot in your displa…
date_series[FREE: 25 calls/day, then $0.002 USDC per call via x402] Lists the dates of a recurrence exactly: daily / weekly (on chosen weekdays) / monthly (on day numbers like 1, 15 or -1 for the last day, or the nth weekday like 2nd Tuesday or -1 for the last Friday) / yearly, every N per…
table_join[FREE: 25 calls/day, then $0.005 USDC per call via x402] Bring columns from one table into another by a shared key (customer id, email, SKU), exactly: how "left" keeps every left row (blank when no match), "inner" keeps matches only, "anti" lists left rows with no match. Keys (u…
pii_redact[FREE: 25 calls/day, then $0.002 USDC per call via x402] Scans text for emails, phone numbers, US SSNs, payment card numbers (Luhn-checked), IBANs (checksum-checked), IP addresses and secrets (API keys such as sk-..., AKIA..., ghp_..., xoxb-..., private keys and 0x-prefixed 64-h…
id_check[FREE: 25 calls/day, then $0.001 USDC per call via x402] Catches typos in identifiers before they go on an invoice, a payment or an order: IBAN (country length + mod-97), US ABA routing number (3-7-1 checksum), GTIN/EAN/UPC barcodes, ISBN-10/13, VIN (check digit), US NPI, EIN (f…
table_profile[FREE: 25 calls/day, then $0.005 USDC per call via x402] Reads every cell of a table (JSON rows or CSV, up to 20000 rows) and reports per column: type (integer, decimal, date, boolean, text, mixed), filled and blank counts, distinct values, most common values, number sum/min/max…
holiday_calendar[FREE: 25 calls/day, then $0.001 USDC per call via x402] Computes public holidays from the rules in law instead of memory: US federal holidays (fixed dates moved to Friday/Monday when they fall on a weekend, nth-weekday holidays such as Thanksgiving, Juneteenth from 2021) or ban…
fx_rate[FREE: 25 calls/day, then $0.002 USDC per call via x402] Converts between about 30 currencies (USD, EUR, GBP, JPY, CAD, AUD, CHF, CNY, INR, MXN, BRL, ...) at the European Central Bank's euro reference rates, published once per business day around 16:00 CET. Cross rates go throug…
x402_service_search[FREE: 25 calls/day, then $0.002 USDC per call via x402] Searches every paid API listed in the public x402 directories (Coinbase CDP and PayAI, about 100,000 endpoints) and ranks the providers by what LogicNodes measures itself: whether the endpoint really answers with valid x40…
chain_infoDescribes a supported chain: CAIP-2 id, display name, native currency, block explorers, and exactly which operations it supports. Omit `chain` to list every supported chain.
address_validateValidates an address for a chain and returns its canonical form. EVM: EIP-55 (a wrong checksum is refused, never corrected). Aptos: AIP-40 strict form. Says only what can be known offline; it never guesses what kind of account an address is.
token_amount_convertConverts between a human decimal amount and integer base units without ever rounding: too many decimals is an error. Decimals are never assumed: pass `decimals`, or an `asset` whose decimals are read from the chain (EVM: "native" or an ERC-20 token address, whose decimals() is r…
evm_balance[FREE: 25 calls/day, then $0.002 USDC per call via x402] Native and ERC-20 balances of an address, ALL read at one stated block (number and hash returned). Token decimals are read from the token contract, never assumed; an address with no code, or a contract that is not a standa…
tx_status[FREE: 25 calls/day, then $0.001 USDC per call via x402] Whether a transaction is committed, failed, pending or not found, with a plain-English explanation. 'Not found' is reported as such and is not proof the transaction never existed.
token_price[FREE: 25 calls/day, then $0.001 USDC per call via x402] Spot USD price of a crypto asset by ticker (BTC, ETH, SOL, USDC, APT, LINK, ...), read live from Coinbase and Kraken. A price is returned only when both answer and agree within 1%; the answer is their midpoint, with both r…
x402_settlement_verify[FREE: 25 calls/day, then $0.002 USDC per call via x402] For sellers taking x402 or other stablecoin payments: give the network, the settlement transaction (EVM hash or Solana signature) and your payout address, and optionally the asset, minimum amount (base units) and payer. Re…
tx_safety_check[FREE: 25 calls/day, then $0.005 USDC per call via x402] Before your agent signs an EVM transaction: simulates it on the current chain state and reports every token and native-coin movement in and out of the sender, decodes what it asks for (ERC-20 approve/permit, Permit2, setAp…
counterparty_check[FREE: 25 calls/day, then $0.003 USDC per call via x402] Before paying or delivering to an agent or address: checks sanctions lists, on-chain activity on Base and Ethereum (wallet, contract or EIP-7702 wallet; transaction counts), whether it owns an ERC-8004 agent identity, its…
sanctions_check[FREE: 25 calls/day, then $0.001 USDC per call via x402] Checks whether an address appears on public sanctions lists: the US Treasury OFAC SDN digital-currency addresses (EVM, Bitcoin, Solana, Tron, Litecoin, Bitcoin Cash) and, for EVM addresses, Chainalysis' on-chain sanctions…
gas_estimate[FREE: 25 calls/day, then $0.001 USDC per call via x402] Current fee tiers for a chain as decimal strings with explicit units. EVM: confidence levels (default 99/95/90/80/70) in gwei with base fee, priority fee and max fee. Aptos: deprioritized/regular/prioritized gas unit price…
aptos_address_validateValidates an address against the Aptos address standard (AIP-40) and returns its canonical form: special addresses (0x0-0xf) as short form, all others as 0x + 64 digits. Strict by default; mode=relaxed also accepts a missing 0x or a few dropped leading zeros, and says which spel…
aptos_name_resolve[FREE: 25 calls/day, then $0.001 USDC per call via x402] name -> address, or address -> primary name (give exactly one). A name resolves to its TARGET address, which can differ from its owner; a registered name with no target resolves to nothing (NOT_FOUND) and its owner is neve…
aptos_asset_resolve[FREE: 25 calls/day, then $0.001 USDC per call via x402] Turns a symbol, registry id, fungible-asset address or coin type into one asset, with its on-chain symbol/name/decimals read live. Several different assets share the symbols USDC and USDT (Circle/Tether native vs LayerZero…
aptos_amount_convertConverts between a human decimal amount and integer base units, using the asset's decimals read LIVE from the chain (never assumed from a symbol). Refuses to round: more decimal places than the asset has is an error. An ambiguous symbol returns AMBIGUOUS_INPUT.
aptos_balance_get[FREE: 25 calls/day, then $0.002 USDC per call via x402] Balances of an address for APT and fungible assets, all read at ONE ledger version (stated, or the current one pinned). Amounts are exact integer strings plus decimal strings. Default assets: APT and every verified asset;…
aptos_fee_estimate[FREE: 25 calls/day, then $0.005 USDC per call via x402] Gas unit price tiers (deprioritized/regular/prioritized) plus the cost of common transactions in octas, APT and USD. Gas units are MEASURED by simulating real transfers now, not taken from a table. USD comes only from two…
aptos_tx_simulate[FREE: 25 calls/day, then $0.005 USDC per call via x402] Runs an UNSIGNED entry-function transaction through the node's own simulator (no key needed, nothing is submitted) and returns success or the abort decoded in plain English, exact gas and fee, balance changes, and events.…
aptos_tx_decode[FREE: 25 calls/day, then $0.002 USDC per call via x402] Explains what an entry-function payload would do, in plain English, with every argument type-checked against the module ABI and amounts shown using the asset's live decimals. Known patterns (transfers, batch transfers, key…
aptos_tx_status[FREE: 25 calls/day, then $0.001 USDC per call via x402] Committed, failed, pending or not found for a transaction hash, with the VM status explained in plain English (Move aborts decoded to module, error name, code and category; the raw status is always included). Fee is comput…
aptos_view[FREE: 25 calls/day, then $0.002 USDC per call via x402] Calls a Move #[view] function read-only, after checking every type argument and argument against the module's ABI: u64/u128/u256 must be decimal strings, vector<u8> a 0x hex string, Option<T> written {"vec":[]} or {"vec":[…
decimal_calcAdd, subtract, multiply, divide, raise to an integer power, compare, or take a percentage, on decimal STRINGS with exact arithmetic (no floating point). The result is rounded only to the scale and rule you choose, and the response says whether rounding changed the value. JSON nu…
text_facts[FREE: 25 calls/day, then $0.002 USDC per call via x402] Facts about a text that language models routinely get wrong: characters (as people see them, emoji included), words, lines, paragraphs, UTF-8 bytes, SMS segments (GSM-7 or UCS-2) and how often a word or letter appears (wit…
slippage_bounds[FREE: 25 calls/day, then $0.001 USDC per call via x402] From a quoted amount in base units (integer string) and a slippage tolerance in basis points, computes the minimum you should accept (min_out, rounded down) or the maximum you should pay (max_in, rounded up). Integer arith…
swap_price_impact[FREE: 25 calls/day, then $0.001 USDC per call via x402] For a Uniswap-V2-style pool, computes the exact output of a swap (the router's integer formula), the total cost versus the spot price including the fee, and the part due to trade size alone, in basis points. Inputs are res…
money_calc[FREE: 25 calls/day, then $0.001 USDC per call via x402] Rounds, adds, subtracts, multiplies, or splits an amount of an ISO 4217 currency, using that currency's real number of minor units (JPY 0, USD 2, KWD 3). A currency not in the list is refused, never assumed to have 2 decim…
interest_calc[FREE: 25 calls/day, then $0.001 USDC per call via x402] Exact simple or compound interest for a principal, an annual percentage rate and a term in years, compounded annually, semiannually, quarterly, monthly, weekly or daily. The number of periods must be whole; fractional peri…
loan_calc[FREE: 25 calls/day, then $0.001 USDC per call via x402] Monthly payment, total interest and total paid for a fixed-rate amortizing loan, in exact arithmetic. The payment is rounded once to the currency scale and the final payment absorbs the rounding so the balance ends at exac…
unit_convertConverts length, mass, volume, time, data, energy, area, speed and temperature using exact definitions (an inch is exactly 0.0254 m). Ambiguous names (oz, gal, pt, KB) return AMBIGUOUS_INPUT with the choices instead of picking one. Reports whether the result is exact or rounded.
address_format_checkChecks whether a string is a well-formed address for EVM (EIP-55 checksum), Solana, Aptos (AIP-40) or Bitcoin (base58check, bech32, bech32m). With family "auto" it lists every family the string could be, and never picks one. A valid format is not evidence an address is safe, own…
time_convertConverts an ISO 8601 instant, or a local time plus its IANA zone, to another IANA zone. A local time skipped by a daylight-saving jump is refused; one that occurs twice returns AMBIGUOUS_INPUT with both instants. Zone abbreviations such as EST are refused.
business_days[FREE: 25 calls/day, then $0.001 USDC per call via x402] Counts business days between two dates, adds business days to a date, or tests whether a date is a business day. Weekends are configurable. NO holidays are assumed: pass the holidays you want observed. Dates are calendar d…
evm_nonce[FREE: 25 calls/day, then $0.001 USDC per call via x402] The transaction count of an address at one stated block. Pending-pool transactions are not counted, and the answer says so.
evm_block[FREE: 25 calls/day, then $0.001 USDC per call via x402] Number, hash, timestamp, base fee (gwei), gas used/limit and transaction count of one block. Use block "finalized" for a block that can no longer reorganize.
evm_tx_receipt[FREE: 25 calls/day, then $0.002 USDC per call via x402] Status (success / reverted / pending), block, gas used and the exact fee in wei and native units for a transaction hash. 'Not found' is reported as such and is not proof the transaction never existed.
evm_token_metadata[FREE: 25 calls/day, then $0.002 USDC per call via x402] Name, symbol, decimals and total supply of an ERC-20 read from its contract at one block. Handles tokens whose name/symbol are bytes32. If decimals() is missing, it is an error: decimals are never assumed.
evm_allowance[FREE: 25 calls/day, then $0.002 USDC per call via x402] How much a spender may take from an owner for a token, at one block, in exact base units and human units, flagging 'unlimited' approvals.
evm_contract_type[FREE: 25 calls/day, then $0.003 USDC per call via x402] Says what is at an address using on-chain evidence: empty account, EIP-7702 delegated account, EIP-1167 minimal proxy, EIP-1967 proxy (with implementation and admin), Safe wallet (with owners and threshold), or other contr…
evm_logs[FREE: 25 calls/day, then $0.003 USDC per call via x402] Logs emitted by one contract in a block range of at most 2000 blocks, optionally filtered by topics. Refuses (rather than truncates) when more than 1000 logs match, so an answer is always complete.
evm_calldata_decode[FREE: 25 calls/day, then $0.001 USDC per call via x402] Decodes transaction calldata against an ABI that YOU supply and returns the function, its signature and each argument. If the selector is not in your ABI it says so and lists the selectors it does have; it does not guess f…
evm_log_decode[FREE: 25 calls/day, then $0.001 USDC per call via x402] Decodes one event log (its topics and data) against an ABI that YOU supply and returns the event name and arguments. If no event in your ABI matches topic0 it says so rather than guessing from a database of known events.
payment_verify[FREE: 25 calls/day, then $0.002 USDC per call via x402] Given a transaction hash, lists the ERC-20 transfers in its receipt and, if you give expectations (payee, asset, amount, payer), says whether a successful transaction contains a matching transfer. Use it to check an x402 o…
random_from_block[FREE: 25 calls/day, then $0.002 USDC per call via x402] Deterministic, publicly recomputable random integers derived from a FINALIZED block hash and a salt. Refuses a block that is not yet final. Not secret and not for cases where the salt can be chosen after seeing the block.
erc8004_agentReads an agent from the ERC-8004 identity registry on Base: its owner address and the registration URI it points to, at one stated block. The URI is reported, not fetched (fetching arbitrary URLs for you is not this tool's job). An id that was never minted is NOT_FOUND.
erc8004_reputationSummarises the feedback posted about an agent in the ERC-8004 reputation registry on Base, at one block: number of distinct clients, number of feedback entries, the registry's own summary value, and each client's latest entry (value, tags, revoked). It is EVIDENCE, not a verdict…
evm_spend_report[FREE: 25 calls/day, then $0.005 USDC per call via x402] Every transfer of one ERC-20 token out of (or into) a wallet across a block range of up to 20,000 blocks, with exact amounts, per-counterparty totals, per-UTC-day totals, and an accounting CSV. Reads public chain data only…
ens_resolve[FREE: 25 calls/day, then $0.001 USDC per call via x402] Resolves an ENS name (e.g. vitalik.eth) to its Ethereum address, or an address to its primary ENS name, read live from Ethereum mainnet. Give exactly one of name or address. A reverse result is returned only if that name r…
wallet_watch_create[PAID $5.00 USDC per call via x402] Subscribes for 30 days: LogicNodes watches one EVM address and POSTs a signed webhook (X-LogicNodes-Signature: sha256=HMAC of the body with your secret) when tokens arrive (incoming) or leave (outgoing), when it grants a token or NFT approval…
wallet_watch_statusShows a watch's state (active, failing, cancelled, expired), the last block scanned, delivery counts and the last 20 events. Needs the watch id and its secret.
wallet_watch_cancelStops a watch immediately. Needs the watch id and its secret. (No refund: the subscription is pay-once.)
audit_log_createCreates a logbook for an agent or business. Returns the log id, a write key (to append) and a read key (to export), shown only once. Every entry is hash-chained and timestamped into Bitcoin through the daily receipt root. Free to create; appending costs per entry.
audit_log_append[FREE: 25 calls/day, then $0.001 USDC per call via x402] Adds one entry (any JSON object up to 8 KB: a payment, a decision, a delivery, ...) to your log. Returns its sequence number, its chain hash and the receipt digest that will be in today's Bitcoin-timestamped root. Needs th…
audit_log_exportReturns entries of your log (up to 1000 per call, from fromSeq), re-verifies the whole hash chain, and gives each entry's Bitcoin proof status (pending until its day's root is built and timestamped). Needs the log's read key.
deal_dispute_review[PAID $1.00 USDC per call via x402] For a deal recorded by the LogicNodes deal notary: verifies the signed, hash-chained record and gives an ADVISORY ruling from fixed rules (R0, R1, R2, R3, R4, R5, R6: settled, delivered and checked, failed check, uncheckable, never delivered,…
operator_verify_startStep 1 (free) of the verified-operator badge. Returns one line to publish EITHER as the content of https://<domain>/.well-known/logicnodes-verify.txt OR as a DNS TXT record at _logicnodes.<domain>. Then call operator_verify_check. The badge proves control of the domain and is va…
operator_verify_check[PAID $10.00 USDC per call via x402] Step 2 of the verified-operator badge: reads https://<domain>/.well-known/logicnodes-verify.txt and the DNS TXT record _logicnodes.<domain>; if either holds the line from operator_verify_start, the badge is recorded for 365 days and shows in…
agent_register_prepareStep 1 (free): builds the ERC-8004 registration file and A2A agent card LogicNodes will host for your agent, and the exact message your agent address must sign (personal_sign) to publish them with agent_register_publish.
agent_register_publish[PAID $5.00 USDC per call via x402] Step 2: with the signature from agent_register_prepare, LogicNodes hosts the registration file at https://logicnodes.io/a/<address>/registration.json and the agent card next to it, and returns the unsigned transaction that calls register(token…
x402_provider_report[FREE: 25 calls/day, then $0.001 USDC per call via x402] For one provider host (e.g. api.example.com): its listed paid endpoints and prices, the last checks (did it answer with valid x402 terms, how fast), 72-hour uptime, USDC received by its payout address on Base per day for 7…
x402_monitor_create[PAID $5.00 USDC per call via x402] For sellers watching their own API, or buyers that depend on one: LogicNodes checks the provider every 5 minutes for 30 days and POSTs a signed webhook (X-LogicNodes-Signature: sha256=HMAC of the body with your secret) when it stops answering…
Details
| Endpoint | https://logicnodes.io/mcp/v2 (Streamable HTTP) |
| First published | 22 Oct 2026 |
| Last updated | 22 Oct 2026 |
| Registry name | io.logicnodes/tools |
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