x402 Directory

Everything else

Paid everything else APIs an AI agent can call with x402.

861 endpoints

Subscription Analyzer

by @mint_anchor · on AMNT

Analyze a list of SaaS subscriptions to find duplicates, normalize plans, estimate ROI, rank services, and recommend consolidation and savings actions.

$0.02 Base Creator keeps 100%

Milestone Payment Plan

by @sharp_canyon · on AMNT

Create a fair milestone payment schedule and recommend net terms from a freelancer contract, including amounts, triggers, invoice timing and stated assumptions.

$0.02 Base Creator keeps 100%

Freelancer Contract Review

by @slate_heron · on AMNT

Scans freelancer contracts for unfair intellectual property clauses, flags high-risk terms, and provides redlined replacement wording and short negotiation lines.

$0.02 Base Creator keeps 100%

chargeback risk review

by @crystal_tundra · on AMNT

Analyze Stripe or PayPal transaction logs to uncover chargeback risks, explain causes, and provide prioritized remediation steps and representment guidance.

$0.02 Base Creator keeps 100%

Tax Expense Categorizer

by @crystal_badger · on AMNT

Send a CSV of monthly expenses and receive each row tagged with tax-deduction categories, category totals, and a downloadable CSV with notes.

$0.02 Base Creator keeps 100%

React Tailwind Generator

by @neon_badger · on AMNT

Generates production-ready TypeScript React functional components styled with TailwindCSS from a wireframe description, including Storybook, tests, and usage examples.

$0.02 Base Creator keeps 100%

StableTravel · Seats Aero Availability

StableTravel · stabletravel.dev

Retrieve bulk cached Seats.aero award availability for a mileage program, optionally filtered by region, date, and cabin.

$0.04 Base 100% up 1,420 paid calls

geoprimitives · Marine Depth

geoprimitives · api.geoprimitives.dev

Give it a latitude and longitude and it answers with what the nautical chart says about the water there: the depth range of the charted depth area containing the position, the nearest charted sounding and how far away it is, and the chart's own zone of confidence for that area. Parameters go in the query string: this is a GET, there is no body. NOT FOR NAVIGATION, stated first because it is a condition of using the source. This is derived from NOAA Electronic Navigational Charts and redistributed; it is not an official NOAA ENC and does not meet federal chart carriage regulations under 33 CFR 164 or SOLAS chapter V, which only charts from NOAA or a certified NOAA ENC distributor do. Every response repeats this under `disclaimer`. NOAA and NOAA ENC are registered trademarks of NOAA, which does not endorse this service. COVERAGE is 65 NOAA ENC cells of usage bands 3, 4 and 5 over five working areas of southeast and southcentral Alaska: Sitka Sound; Kasaan Bay and Clarence Strait; Metlakatla, Ketchikan and Revillagigedo Channel; Juneau, Gastineau Channel and Lynn Canal; and Cordova with eastern Prince William Sound. It is not statewide, it is not the whole coast, and the small-scale cells that would make it look wider were deliberately left out. The coverage check reads the coordinate, so it runs in the handler after payment rather than in front of the 402: a position off the charts is quoted like any other and then refused with outside_coverage. A refusal does not settle and nothing is charged, but it costs a signature and a round trip, so check the coverage first. Every response repeats it under `coverage`. NOTHING IS INTERPOLATED, and that is the difference between this and GET /v1/elevation. Terrain is a continuous surface and sampling it between pixels is legitimate; a chart is a set of assertions a hydrographer made, and averaging two of them invents a depth nobody surveyed. So `depthAreaMinimum` is DRVAL1 of the charted depth area the position falls inside, the

$0.005 Base 744 paid calls

Hash · Hash

Hash · agent402.tools

Cryptographic hash of a text string - sha256 (default), sha512, sha1 or md5 - returned as hex and base64. Use it for content fingerprints, integrity checks and deterministic ids; pure computation, instant.

$0.001 Base 100% up 303 paid calls

Printmoneylab · Kimchi Premium

Printmoneylab · api.printmoneylab.com

Real-time Kimchi Premium for a single token (Upbit vs Binance via FX rate)

$0.002 Base 100% up 287 paid calls

Strale · Keyword Suggest

Strale · api.strale.io

Get keyword suggestions from Google Autocomplete. Returns suggestions, questions, comparisons, long-tail keywords.

$0.03 Base 100% up 261 paid calls

reefjaco · Watch

reefjaco · molecular-packs-metadata-docs.trycloudflare.com

reefjaco POST /watch One-shot hash/snippet fingerprint for later change detection

$0.03 Base 206 paid calls

Hugen · Tick ALL

Hugen · tick.hugen.tokyo

Get real-time Best Bid/Ask for ALL available FX pairs in a single call. Multi-source aggregated from multiple institutional LPs with 62-88% spread improvement. Returns 14 FX pairs including majors, crosses, and XAUUSD gold. Each pair includes quality metadata and spread improvement vs single source. AI agent API for portfolio dashboards, multi-pair monitoring, and FX market overview. Accepts USDC payments on Base and Solana

$0.005 Base 100% up 191 paid calls

Strale · Startup Domain Check

Strale · api.strale.io

Check domain and handle availability for a startup name. Checks .com/.io/.ai/.co/.dev domains, Twitter, GitHub, npm, PyPI.

$0.05 Base 100% up 190 paid calls

Twit · Tweets User

Twit · x402.twit.sh

Get the latest tweets (timeline) from a specific Twitter/X user by their username. Returns up to 20 tweets per page sorted by most recent first, with pagination support. Query params: username (string, required) - Twitter screen name; next_token (string, optional) - pagination cursor, e.g. GET /tweets/user?username=elonmusk. Returns X v2 API-compatible JSON.

$0.01 Base 100% up 182 paid calls

Skim402 · Read

Skim402 · skim402.com

Skim: clean reader — URL to agent-ready markdown + metadata, ~4x smaller than raw HTML

$0.002 Base 100% up 181 paid calls

Deepnets · Watchlist

Deepnets · api.deepnets.ai

The active deepnets watchlist - high-volume tokens that passed the safety screen, with current safety data.

$0.01 Solana 100% up 150 paid calls

Hugen · Tick Symbols

Hugen · tick.hugen.tokyo

List all available FX symbols with their current quality state and source count. AI agent API for discovering available instruments before subscribing to tick data. Accepts USDC payments on Base and Solana

$0.005 Base 100% up 144 paid calls

Regimeshift · BTC VRP

Regimeshift · regimeshift.xyz

BTC Volatility Risk Premium — DVOL minus Parkinson realized vol (72h). Positive = sell-vol opportunity, negative = buy-vol. Response includes regime classification (LOW/MID/HIGH), raw inputs for audit (DVOL, RV_72h, RV_6h, spot), timestamp, and open methodology URL.

$0.001 Base 100% up 133 paid calls

Vindexapi · Decode

Vindexapi · api.vindexapi.dev

Normalized NHTSA vPIC VIN decode (?vin=) — make/model/year/engine/body/… with fetch provenance, plus ORIGINAL factory new-vehicle warranty terms (basic/powertrain/corrosion/roadside/EV battery) keyed off make + model-year.

$0.01 Base 100% up 116 paid calls

X402node · Aviation Airport Status

X402node · api.x402node.dev

US airport status from FAA: all airports currently with closures, ground stops, ground delays or arrival delays, with reasons and times. Official FAA NAS status data. 全美机场状态(FAA官方):当前关闭、地面停飞、延误的机场及原因。米国空港運航状況。Estado de aeropuertos de EEUU. 미국 공항 운영 상태. Accepts payment on Base or Solana — either network works.

$0.005 Base 100% up 113 paid calls

X402node · Stock CN Moneyflow

X402node · api.x402node.dev

China A-share single-stock money-flow: main-force (institutional) net inflow over recent sessions, with net amount, main-force ratio and daily breakdown. The 'is smart money buying this stock' check Chinese retail investors run before chasing. A股个股主力资金流:查任意A股近N日主力净流入、净额、主力占比,散户追涨前先看主力在不在买。A株個別銘柄の資金フロー。Flujo de capital por accion del mercado A. Accepts payment on Base or Solana — either network works.

$0.02 Base 100% up 111 paid calls