Guides

Find a worked example for a document, PDF, image or data task. Use free browser tools for one-off work, or follow an API guide to automate it. Each API guide explains its inputs, output and limits.

Start with a task

New to MCP? Connect your client. Before paying, check API prices and allowances and charge rules.

Project examples and payment recipes

Costs per deliverable, for agents that sell research: a dated 3-site price snapshot, USD 0.036 · a sourced supplier brief as a spreadsheet, USD 0.046 · resale listing drafts, USD 0.005 each · a year of bank statements, checked month to month, USD 0.12 · the data for a BTC/ETH derivatives brief, USD 0.011 · a 500-address list checked before the first send, USD 0.50 · a net-yield decision, about USD 0.01

Recipes: who pays the gas when an agent pays per call · statement converters priced per page vs per file · a supplier PDF price list your agent can quote from · the data behind a derivatives brief for USD 0.011 · check 20 x402 endpoints before paying any · poll an oracle by its heartbeat · report a wrong paid answer · make an MCP agent pay (TypeScript and Python) · OCR or a vision model? · where repeat buyers spend · our revenue, one row per payment · count receipts, not attempts · check a citation before you trust it · DMARC for subdomains under RFC 9989 · one USDC balance per chain · a gas floor in hours, not ETH · hiring velocity from job posts · x402 supply numbers for free · a news watch list for USD 0.06 a day

Data: can tool indexes find a payable, on-task tool?

Shopify inventory imports

x402 price data: what agents pay per call

Listed prices of x402 sellers by category, hand-checked, with Tanod's price on each page. Open data: datasets page. Daily figures: x402-category-prices.json (CC BY 4.0). New priced listings each day: Atom feed.

Side by side: the other APIs agents are offered

For these tasks we list the pay-per-call APIs that the Agent402 router returned on 13 October 2026, with their listed prices next to ours.

Hosted MCP servers

Add one URL to Claude, Cursor or any MCP client. No install or key; free daily calls. Overview: all Tanod MCP servers.

Solidity DeFi bug classes

Short, plain write-ups of the recurring bug classes pactlint checks for. Each has a minimal vulnerable example, the fix, and a box to scan your own contract. The detectors behind them are open source.

How-to guides: Tanod API endpoints

Guides to one task each, with an example request, response and limits. Some calls have a free allowance; others are paid from the first call. Check the guide before sending a request.

Aviation, space and sky

Text AI without an account

Link and address screening

Monitoring and text checks

Documents, web pages and search

Domains, email and IPs

On-chain reads (Base and Ethereum)

Security scans

PDF tools

PDF/UA checks: when automation is enough, and when it is not (machine validation, a worked example and the human review still needed).

Image tools

Text and data utilities

Identifiers, time and URLs

Educational and heuristic, not an audit. The scanner lives at tanod.dev; the detectors are open source (MIT).