Repository, build, lint, test and code-understanding services that an agent can call while working in a codebase.
EIP-1967 proxy resolver for a Base contract: implementation, admin, beacon addresses + is_proxy. Use when an agent must know what code actually runs behind a proxy before trusting or calling it.
Check up to 32 JSON argument values against a closed, declared scalar tool contract: types, required fields, code-point length and exact safe-integer bounds. Rounded fractions/underflow are not integers. Returns unknown...
An npm package's latest version, description, license, repository, dependencies, peer dependencies, TypeScript types, size, publish dates, deprecation and weekly downloads. Use to choose or audit a JavaScript dependency.
Food product details from its EAN/UPC barcode: name, brand, quantity, ingredients, allergens, Nutri-Score, NOVA processing group, Eco-Score and nutrients per 100 g, from Open Food Facts. Use for nutrition apps, shopping...
Hex encode or decode text. mode: encode (default) or decode.
Verify an HS256/384/512 JWT signature against a secret and check expiry. Returns valid + decoded payload. (HMAC algorithms only.)
US airport delays and ground stops: give an airport code like JFK, get live FAA ground stops, ground delay programs, arrival and departure delays and closures, or list every delayed airport.
Encode or decode base64. POST {"mode":"encode","input":"..."} or {"mode":"decode",...}. Supports standard and url-safe alphabets via {"urlsafe":true}. Decoding validates the input and reports an error rather than returni...
Call when an agent needs a Code 39 mod-43 check character. Not a product. Start and stop asterisks are not data.
Call when an agent needs a BIP-173 Bech32 checksum check. Decoded payload is not returned. Not a balance.
Local-only hex → utf8 / bytes32 / address / selector. No 4byte.directory. Offline. Amp port.
Call when an agent has an IATA airport code and needs the city and country. Unknown codes return 404. Not a live schedule or a fare.
SWIFT code, BIC validation. Check a BIC (SWIFT code) against the ISO 9362 structure: institution code, a real country code with its name, location code, branch code, whether it is the head office (XXX or 8 characters), a...
Sorts groups by size, then assigns each to the available room that has all required features and minimizes unused capacity, hourly cost and room identifier in that order. This fast heuristic is not guaranteed globally op...
Filters supplied official export restrictions by destination and commodity-code prefix. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-ba...
Simulate a transaction before signing: runs `eth_estimateGas` for `{ to, from?, data?, value? }` and returns the estimated gas units and estimated fee (current gas price x gas, in wei + ETH). If the node rejects the call...
Turn a 4-byte function selector or full calldata into its human-readable function signature, and (when calldata is present) the decoded argument values. Supply an `abi` for a fully deterministic offline decode, or omit i...
Buy an admin-issued prepaid API code for one GPT model and a token budget
Buy a prepaid API code for one GPT model and a token budget
Decode a MessagePack or CBOR byte stream (supplied as a base64/base64url/hex string) back into a JSON value. A malformed envelope, malformed bytes, or a value that is not JSON-representable is rejected before payment.
Deterministic utility operations for agents: sha256/sha512/HMAC hashing, JWT decode, base64 encode/decode, UUID generation, JSON validation, CSV↔JSON, XML→JSON, URL parsing and semver comparison. Sub-millisecond, no exte...
Working code snippets for a library, matched to a topic. Give an ecosystem, package name and a topic or symbol and get the fenced code blocks from the README or docs whose language, code or nearest heading matches, each...
Compute the GS1 check digit for a code body missing it.
Serialize a JSON value into a compact MessagePack or CBOR byte stream, returned as a base64 (default), base64url or hex string, along with the byte length.