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agent402
1,224 resources on agent402.tools · browse everything
Live web search: ranked results (title, URL, snippet, age) from an independent search index as clean JSON - fresh pages your model's training cutoff has never seen. Optional freshness filter (pd/pw/pm/py = past day/week/month/year). Start here to ... summarised by us
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- URL encode/decode
Percent-encode or decode a string for URLs. mode: encode (default) or decode. component: true (default) uses encodeURIComponent semantics.
- DNS lookup
Live DNS lookup for a domain: returns name, type and records[]. Supported record types: A, AAAA (addresses as strings), MX ({exchange, priority} objects), TXT (
- Color convert
Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".
- IBAN validate
Validate an IBAN: country code, length, and the ISO 13616 mod-97 checksum.
- MIME lookup
Look up a MIME type by file extension.
- Semver parse/compare
Parse a semantic version, or compare two (a vs b → -1/0/1, with greater/lesser flags).
- Text-to-speech
OpenAI-compatible text-to-speech over x402 - point any OpenAI SDK's audio.speech.create() at base_url https://agent402.tools/v1 and pay $0.06 per call in USDC,
- Memory compare-and-set
Atomically write (or release) a key only if its current value equals `expected` - the coordination primitive for distributed locks and optimistic concurrency ac
- Onramp link (fund a wallet with
Generate a single-use Coinbase Onramp URL that lets a human fund any wallet with a card or Apple Pay - the fastest way to put real USDC into an agent's wallet.
- Calculator
Safely evaluate an arithmetic expression (+ - * / % ^ and parentheses). No code execution - a real parser, not eval.
- Compound interest
Compute future value of a principal under compound interest. Returns future value, total interest earned, and the effective annual rate (APY) given the compound
- DNS lookup
Resolve any DNS record type for a host: A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, SRV, PTR. Returns the records plus a count. Built on Node's native resolver - no
- Finance
Financial math. op: "compound" (future value of principal at a rate) or "loan" (monthly payment + total for a loan).
- A2A Agent Card fetch
Discover and fetch a site's A2A (Agent2Agent protocol) Agent Card - tries /.well-known/agent-card.json then /.well-known/agent.json (or fetches a direct .json U
- x402 security audit
Grade any x402 seller's payment-security posture from the outside - a read-only black-box check mapped to the 'Five Attacks on x402' failure modes. Probes the U
- LLM inference (Pro)
LLM inference proxy (Pro tier) - GPT-4o or GPT-4.1. Supports vision (up to 2 image URLs) and structured output (response_format: json_object or json_schema). No
- Tech stack detection
Detect the technology stack of a public website: CDN, web server, language/runtime, frontend framework (Next.js, Nuxt, SvelteKit, Remix, Astro, React, Vue, Angu
- Onchain SQL schema
The table + column schema for the onchain-sql tool - every queryable table (base.events, base.transactions, base.blocks, base.decoded_user_operations, base.tran
- Air quality (global)
Current air quality index and pollutant concentrations for any location: US AQI, PM2.5, PM10, ozone, NO2, SO2, CO. Open-Meteo air quality API, no key, global.
- Wallet token balances (indexed)
All token balances for any address in one call, from Coinbase's indexed data API - ERC-20 + native on EVM, SPL on Solana; no per-token contract calls, no RPC wr
- US unemployment rate (UNRATE)
Latest US unemployment rate (current, as of date) plus a trailing N-month history of {date, value} for trend, seasonally adjusted, in percent. Source: FRED UNRA
- UUID validate
Validate a UUID and report its version (1-8) and variant. Accepts hyphenated or braced forms.
- Date arithmetic
Add (or subtract) a duration to a date. duration like "2d", "-3h", "1w 2d", "90m". Returns the resulting UTC ISO timestamp.
- Number format
Format a number: thousands separators, fixed decimals, optional currency, or compact (1.2K / 3.4M).
- Roman numerals
Convert an integer (1-3999) to Roman numerals, or a Roman numeral back to an integer. Auto-detects direction.
- JSON flatten/unflatten
Flatten nested JSON to dot-path keys, or unflatten dot-path keys back to nested JSON. mode: flatten (default) | unflatten.
- Truncate
Truncate text to a maximum length, adding an ellipsis (or custom suffix). Optionally break on word boundaries.
- ROT13 / Caesar
Caesar-cipher a string. Default shift 13 (ROT13, self-inverse). Set shift for any rotation 1-25.
- JSON pointer
Resolve an RFC 6901 JSON Pointer (e.g. /items/0/name) against a JSON value. Returns the value or found:false.
- Relative time
Format a timestamp as a human relative phrase ("3 hours ago", "in 2 days") versus now or a reference time.