Hex x402 REST usage
Hex-decode a hex string (optional 0x prefix) back to bytes, returned as UTF-8 (when printable) and base64. Rejects odd-length or non-hex input.
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Hex-decode a hex string (optional 0x prefix) back to bytes, returned as UTF-8 (when printable) and base64. Rejects odd-length or non-hex input.
Base64-encode an input string. Standard encoding for binary-safe transport of text and data.
Compute an HMAC signature (hex) of an input string with a secret key. Supports sha256, sha512 and other algorithms — for webhook signing and message authentication.
Ethereum Keccak-256 hex digest of input — original Keccak (0x01 padding), not NIST SHA3-256. Used for EVM checksums, event topics and Solidity keccak256.
Compute the SHA-512 hash (hex digest) of an input string. Deterministic cryptographic hashing for checksums and fingerprints.
Validate whether an input string is well-formed JSON. Returns a valid flag and a parser error message when invalid.
Compare two semantic version strings. Returns -1, 0 or 1 for less-than, equal or greater-than.
Convert a timestamp between unix seconds and ISO-8601 (UTC) in either direction: {value, from:unix|iso, to:unix|iso}. Timezone-safe date math for scheduling, logs and on-chain timestamps.
Parse a URL into its components: scheme, host, port, path, query and fragment.
Generate a random RFC 4122 version 4 UUID. Unique identifiers for records, requests and idempotency keys.
EIP-55 mixed-case checksum for a 20-byte EVM (Ethereum/Base) hex address, via Keccak-256. Normalize and verify addresses before a transfer.
Compute the MD5 hash (hex digest) of an input string. Fast, deterministic checksums and legacy fingerprints (not for security-sensitive hashing).
Compute the SHA-1 hash (hex digest) of an input string. Deterministic fingerprints and git-style content identifiers.
Convert a JSON array of objects into CSV text with a header row. Flatten structured data for spreadsheets and exports.
Convert an XML document into an equivalent JSON object. Parse XML feeds, SOAP responses and config into JSON.
Decode a JSON Web Token (JWT) into its header and payload claims without signature verification. Inspect exp, iss, sub and custom claims.
Compute the SHA-256 hash (hex digest) of an input string. Deterministic cryptographic hashing for checksums, fingerprints and content addressing.
One call, the whole pre-trade picture: crypto market sentiment (Fear & Greed + global stats), live Base gas/block, optional token price(s) and related prediction-market odds. A bundled decision snapshot for trading agent...
A structured token/contract risk report for a Base contract: a normalized risk score, a pass/warn/fail checklist (bytecode present, sanctions, verified source, ownership, holder concentration) and a single verdict. $0.05...
One AML/KYC-style verdict for a counterparty from a single call: wallet sanctions + on-chain risk, name sanctions screening, GLEIF company identity and technical counterparty risk, merged into clear | review | blocked wi...
The complete picture of a Base wallet in one call: profile (balance, type, ERC-20 holdings), recent transactions, top counterparties and sanctions/risk screening — merged from four AgentBIT wallet tools. $0.02.
Everything to vet a domain in one call: DNS records + email posture, RDAP registration/age/registrar, IP network/ASN/geo (from the resolved A record) and public threat-intel on the site. Four AgentBIT tools, merged. $0.0...
Provider identity is derived from the domain or repository in the source record. If two vendors share a host, they appear together here — that is a limitation of the data, not a statement about ownership.