Our tools
531 deterministic tools an agent can call and pay for per request. Around 222 of them run free on proof-of-work. This is our own catalog - for every tool in the index, ours and other sellers', see all indexed tools.
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Filters the table below as you type. Agents skip the browsing and call GET /api/find directly - free, no wallet.
531
tools
222
free · proof-of-work
$0.001
floor price
23
categories
0
api keys needed
$ GET /api/pricing
Browse by category.
counts from the live catalog| category | what is in it | tools | pays with |
|---|---|---|---|
| Web & documents | Read the live web: browser rendering, screenshots, article extraction, PDFs, metadata. | 37 | cpu + usdc |
| Agent memory & coordination | The stateful layer a stateless agent can't build for itself: durable wallet-keyed KV with TTL, atomic counters/locks, shared namespaces other agents can reach (grants), a tamper-evident audit log, and similarity recall. The payment is the identity - no signup. | 11 | usdc |
| Network & domains | DNS, TLS certificates, WHOIS/RDAP, uptime checks, robots.txt and sitemaps. | 18 | usdc |
| Live public data | Keyless real-time government and market data: dataset search across data.gov, NWS weather alerts, USGS earthquakes, currency rates, barcode product lookup. | 111 | cpu + usdc |
| Payments & x402 | Non-custodial x402 tooling: decode HTTP 402 quotes, verify on-chain USDC settlements, read balances, tx status and gas across Base, Polygon, Arbitrum, Optimism, Ethereum, and Robinhood Chain, and build EIP-3009 transfer authorizations. The agent signs with its own key - Agent402 never touches funds. | 17 | cpu + usdc |
| Data conversion | JSON ⇄ CSV/YAML/XML, markdown ⇄ HTML, diffs and queries - formats agents juggle constantly. | 30 | cpu |
| Text processing | Slugs, case conversion, diffs, regex, keywords, token estimates, edit distance, readability, PII redaction. | 27 | cpu |
| Math & finance | Safe expression calculator, statistics, unit conversion across 13 categories (length, mass, temperature, …) via POST /api/unit-convert, percentage/number formatting, CIDR subnets, compound interest and loan math. | 13 | cpu |
| Encoding & crypto | Hashes, HMAC signatures, base64/hex, JWT decoding, TOTP codes. | 20 | cpu |
| Generators & IDs | UUIDs, ULIDs, passwords, secure randomness, QR codes. | 6 | cpu |
| Time & scheduling | Timezone-aware clocks, epoch conversion, cron parsing, durations. | 10 | cpu + usdc |
| Validation & parsing | Emails (with MX), URLs, IPs, user agents, colors, semver, IBAN, card numbers. | 25 | cpu + usdc |
| LLM gateway | OpenAI-compatible pay-per-call inference over x402 - five quality tiers plus embeddings, image generation and text-to-speech, model-optional auto-routing, streaming, and a default-on prompt cache. See /v1 in the OpenAPI spec for the full wire format. | 8 | usdc |
| Crypto & onchain data | Keyless reads across chains: token prices and metadata, order books, stablecoin peg health, wallet balances and transaction history, NFT holdings and metadata, gas snapshots. | 54 | cpu + usdc |
| Contract & address inspection | Deeper onchain reads: verified contract source and ABI, address profiles, token holders, transaction inspection - plus the named block and log primitives (block number, block info, event logs, ERC-721 owner, contract code). | 5 | usdc |
| Wallet operations | Multi-chain balance reads, testnet funding, onramp links, and SQL over onchain data. Non-custodial: the agent signs with its own key. | 5 | usdc |
| AI & compute | Inference, generation and sandboxed execution priced per call: chat tiers, image generation, text-to-speech, speech-to-text, and code execution in an isolated sandbox. | 15 | usdc |
| Skill packs | Multi-tool workflows that run server-side in one request: one payment, one settlement, and a single response with a partial-success envelope if a step fails. Cheaper to integrate than orchestrating the steps yourself. | 103 | cpu + usdc |
| Calendar & date math | ISO weeks, leap years, day-of-year, epoch conversion, and movable-feast dates - the calendar edge cases that are easy to get subtly wrong. | 5 | cpu |
| Market & demand research | Analyzed reads over this catalog's own demand and the open x402 ecosystem: what agents ask for, what sells, and company research. | 3 | usdc |
| Routing & delegation | The Smart Order Router: describe a task and it resolves the best-matching tool and runs it in one call, from this catalog or from an external x402 seller paid on your behalf. Three tiers by underlying price. | 5 | usdc |
| API primitives | Building blocks for services that front an agent: CAPTCHA generation and verification. | 2 | cpu + usdc |
| x402 seller intelligence | Evidence about other x402 sellers: crawl health, advertised chains, and observed on-chain settlement counts - the same gate the router applies before it spends on an external seller. | 1 | cpu |
A tool can appear under more than one category, so the column does not sum to 531. cpu means every tool in it is payable in compute via proof-of-work; usdc means all of them cost real money; cpu + usdc means the category mixes both.
FREE TIER
Pay with CPU, not USDC
Every pure-CPU tool is payable in compute. Your machine solves a single-use sha256 puzzle - about 85,000 hashes, a tenth of a second - and the call goes through. No wallet, no funding, no signup.
# the MCP connector solves it for you
claude mcp add --transport http agent402 https://agent402.tools/mcp
watch it run in the playground →
PAID TOOLS
Quoted before you're charged
Anything that costs us money to run - live search, browser rendering, inference, stored memory - is priced per call and states its price in the 402 challenge. A failed call is never charged, and there is no key to leak.
# price, asset and rail, before paying
curl -i https://agent402.tools/api/search -d '{"q":"x402 adoption"}'
the full price list →