Agent402.Tools

Agent payments are easy to talk about and hard to see. So we built a page where you can watch them settle. Every little walker on screen is one paid API call, read straight from the chain as it lands. It wears the logo of the seller it paid and hops into the gate for its price: a tenth of a cent, a cent, a dime, a dollar, more. Two protocols, side by side: x402 on @base: USDC payments to sellers listed in public x402 discovery. MPP on @tempo: payments to the recipients MPP sellers name in their own 402 challenges. Filter to either one, switch between the last hour and the last day, and tap any walker to see the payment and its transaction, so you can check it yourself. Up top: payments per minute, USDC settled and distinct buyers. Along the bottom: every payment as it arrives, seller and price. No login, no sample data, no estimates. If it's on screen, it settled. A few things we cared about: It shows everyone, not just us. One walker is a payment to Agent402. Every other one is someone else building on x402 and MPP, getting paid by agents that never made an account. It runs as its own read-only service. No keys, no shared database, nothing in common with the Agent402 API. It reads public chain data and public seller listings, and that's all. It's open source with the rest of Agent402. Leave it open in a tab. It's oddly calming. live.agent402.tools

POST /api/dub translates a text and speaks the translation in one paid call. The audio comes back as raw bytes with the translation and detected source language in an X-Dub-Translation header, or as JSON. Quoted in its 402, payable over x402 or MPP. Model-backed.

Before an agent acts on an email, POST /api/email-guard reports hidden HTML text, invisible Unicode, links whose text names another host, and sentences addressed to an AI assistant, each with evidence and offsets. No score, no verdict, no model. x402 or MPP.

Watch x402 payments on Base and MPP payments on Tempo settle as they land, one walker per payment, sellers named from their public listings. Where a network holds the event stream back, the page now switches to short polls and keeps updating. live.agent402.tools

Prefer one fixed amount per call? The flat chat tiers stay. Each one's unpaid 402 now names its metered twin in a meteredTwin field, so a client can switch to a quote built from its own request. Both pay over x402 or MPP. Model-backed.

Agent loops get a gate: POST /api/loop-gate takes the goal and the latest iteration and answers continue, stop or escalate, with confidence, the checks behind it and a next step. Budget and iteration limits run in code first. Model-backed for the judgments. x402 or MPP.

x402 now settles on 13 chains here, Arc included: USDC on eip155:5042, listed on /api/rails beside Base, Solana, Polygon, Arbitrum, Monad, Celo, Avalanche, Sei, Optimism, Stellar, Algorand and Robinhood Chain (USDG). MPP pays on Tempo, Base and Celo.

page-speed loads one public URL in headless Chromium and returns an opportunities array from that same load: the LCP element by CSS selector, render-blocking scripts and styles, images without reserved dimensions, each with the bytes or milliseconds measured. x402 or MPP.

Slow routes now show progress. Send Prefer: respond-async on a paid call, get 202 and a job link, then GET /api/jobs/{id}: state, stage, progress from 0 to 1, an ETA and Retry-After until done. On x402 and MPP's evm method, payment settles only on the delivered answer.

On Base and Arc, the 402 can carry a second x402 exact accept, GatewayWalletBatched. Deposit USDC into Circle Gateway, then sign each call against that balance with no on-chain transaction per call; Gateway settles in batches. Same payTo. MPP sits on the same 402.

/api/tts and /api/tts-hd are now quoted per request from the length of the text: a floor plus a per-character rate, up to the 2,000-character cap. The 402 names the exact amount for your text, and x402 and MPP both read that quote. Model-backed.

Receipts next to quotes: the proof page shows the latest outside settlement's quoted ceiling beside what actually settled, with our own daily canary's settlement next to it, labeled internal. Metered calls settle at or under the quote, over x402 or MPP.

Monitors re-run a report when something changes and email you the diff: SEC filings, fund 13F, FDA recalls, insider flow, IPO pipeline and more. $5.00 a month by card, cancel anytime from the link in your email. The reports underneath also sell per call over x402 or MPP.

POST /api/transcribe ($0.030): send an audio URL, get the transcript. Add diarize:true for speaker labels, word timestamps and a language confidence score at the same price. Up to 4 minutes; transcribe-pro ($0.100) goes to 10. Model-backed, paid over x402 or MPP.

/v1/rerank ($0.002) reorders up to 50 documents against a query and returns a relevance score for each, in the common query, documents, top_n request shape. Model-backed. Pair it with search or embeddings in a retrieval loop, paid per call over x402 or MPP.

Skill packs bundle several tools behind one payment, one request and one combined answer. POST /api/skill/email-deliverability is $0.009; earnings deep dive, options analytics and fixed-income desk sit beside it. Pay over x402 or MPP.

Seller asking why the router isn't paying you? GET /api/index?seller=<your host> is free and returns the router's verdict for your origin and the reason. Proven on-chain settlement is the bar for x402 and MPP sellers alike; the unproven lane covers a new Base or Solana seller.

Shipped lately: judge routes for images and long documents (model-backed previews), a third backend behind the judge, tool search that forgives a typo, and 503 with Retry-After on search under load. Paid routes take x402 or MPP. agent402.tools/changelog

Hold a settlement transaction? GET /api/refunds/lookup?tx= is free: it says whether a refund is recorded for that payment, and gives the refund transaction once one is sent. Takes x402 and MPP settlement transactions. On x402, a call that errored was not settled at all.

PDF work an agent can hand off: pdf-to-markdown ($0.003): headings and bullets rebuilt from the text layer pdf-merge ($0.004) pdf-extract-pages ($0.003) pdf-summarize ($0.030, model-backed) Each is one paid request over x402 or MPP. No account.

Each tool page shows its parameters, an example request and the response it returns. Every tool CI can run without a third-party key is called with its own documented example before a release, and an error from our own code blocks it. Pay any tool over x402 or MPP.