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x402 Pay-Per-Call APIs for AI Agents

Pay-per-call APIs that use the x402 protocol: the server answers HTTP 402 with payment details, and an agent pays per request, usually in USDC, without an account or API key. Entries come from a public x402 discovery index, and each provider sets its own price.

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api.redactedpartners.com

Decision arbitration: submit context, options, constraints, and risk_tolerance; receive a structured JSON verdict with confidence score, reasoning,…

RESET Verifica

Verify a UK company by its Companies House number (e.g. 00445790) or by name against the official UK register (Companies House). Returns the company…

TEnergy

65000 TRON energy, 1h rental, delivered to the receiver named in the quote

tokenplans.dev

Full JSON catalog of verified AI coding-subscription plans across 31 providers (Claude, OpenAI, Cursor, Gemini, and more). Each record: monthly…

Truth Bear

[SIGNAL+PROOF] One official signal record for any signal_id and entity: current reading against the OFFICIAL threshold ladder (band,…

api.x402.printmoneylab.com

Single buyer wallet's 8-label classification with confidence, all services used, and transaction patterns.

api.x402agentic.ai

Per-agent budget enforcement — track an agent's cumulative spend against a cap and block overspend. Part of x402 Agentic, the payment-trust suite…

app.maginary.ai

Generate AI images or video from a text prompt with Midjourney-style --flags (--ar 16:9, --v, --flagship, ...). Async: returns a generation record;…

Asia Pulse

Asia-session crypto market snapshot for AI agents: kimchi premium, funding-rate regime signal, and BTC/ETH Asia-hours momentum from a live 24/7…

Atlas Probability Intelligence

Atlas Bitcoin/BTC 60-minute (1-hour) probabilistic market forecast

Aura Agent Persistence

Give an autonomous agent what it structurally lacks: a real email address that receives verification codes, its own webhook URL, durable memory that…

aurelius-node-01.onrender.com

Aurelius Node 01: Real-time Texas Regional Corridor ground-truth oracle (DFW, Permian, Gulf Coast, Central TX). Provides 46-item supply matrix:…

basefeed

x402 settlement test

Locus x402 Services

Locus public pay-per-use API

BundleScope

Token launch bundle and sniper detection on Base — flags coordinated bundle buys and snipers

calendars.stockql.ai

Audited AMERICAS exchange holiday calendars (9 venues): trading weeks, full-day closures, audit horizons, operator sources, provenance manifest.

CHAPPY Japan Address Preflight

Reproducible Japan Post evidence before an autonomous agent submits a Japanese address. One 0.02 USDC x402 call returns a fail-closed town-level…

citation-tracker

Sends one prompt to one search assistant (Perplexity, OpenAI or Gemini) and reports whether it cites your target domains: cited status, citation…

City Table Clean

City Table Clean: send a Socrata or CKAN city open-data CSV URL (or upload) and get back a cleaned CSV plus a change report: trimmed whitespace,…

clawg.network

A registry of token records with a build log. A record is written only by the token's provable controller (on Solana: the pump.fun curve creator or…

clawg.network

A registry of token records with a build log. A record is written only by the token's provable controller (on Solana: the pump.fun curve creator or…

clawmail.xyz

Create a custom email mailbox at @clawmail.xyz for AI agents and LLMs

cnvrt.ing

Extract raw artifacts from images: OCR text and detected objects. No interpretation, just clean machine-readable data. Powered by GPT-4o Vision.…

commsharbor.com

Crédito pré-pago de $0.10 para as APIs da casa

Concierge Agent

DeFi TVL by chain and top protocols (DeFi Llama)

ContentForge

Content repurposing — turns any URL into a LinkedIn post, 3 tweets, newsletter blurb, and SEO summary

LoneStarOracle ContractCheck

Smart contract verification and security analysis on Ethereum Base BSC Arbitrum Polygon

Countersignatory

One screened human answers an approval, verification or judgment task: approve or reject, true or false, or a label, with a reason and the…

Crawl Pre-Flight

Crawl pre-flight for a domain: will you be blocked, is content behind a paywall, and how much is actually there. Returns per-bot robots.txt verdicts…

crier.vimabrosta.com

Send an SMS from an AI agent to a phone number (E.164): up to 300 characters, from a fixed relay number with an opt-out suffix, retried on failure,…

CrownBlock

US oil and gas — WTI Brent Henry Hub refined products basin production rig count

crypto-currency-network.net

CCN — Crypto Currency Network Premium News Feed

CryptoOps-MCP

[MCP: default] Pay-per-call MCP tool priced at 0.50 USDC (500000 atomic units) via x402 v2 on eip155:8453.

Lagoon CIV Commodity Data

Sugar reference price (currently follows futures; no CIV farmgate floor).

api-datos-uy-ar

Tasas de referencia del BCRA: política monetaria, BADLAR y TAMAR.

depscout.vercel.app

Check an npm package, PyPI package, or GitHub repo and return a DepScout install verdict.

diligence.x402supply.com

Runs live diligence on an x402-metered endpoint before you pay it: verifies its 402 payment challenge is spec-compliant, checks the price against…

DocEdge

Converts any URL (PDF, webpage, Google Doc) to clean Markdown with optional AI summary. $0.05/convert via x402 on Base.

Domain Intel

Company domain intelligence. Use when you need to know what a company's website runs on or how its email is set up: tech stack (CMS, e-commerce,…

Price Watcher API

Real-time product price lookup from a public e-commerce product URL. Use for product price checks, price monitoring, price comparison, shopping…

editalmd.com

Crédito pré-pago de $0.10 para as APIs da casa

Validate email

Validate an email address — syntax, MX/A deliverability lookup, and disposable / role-based address detection. No mailbox probing.

endpoint-intelligence-edge.ldbertoldi.workers.dev

Perform fresh TCP service identification against a public IP address or hostname and port. Returns protocol, detected service, software product,…

entity-resolve.x402supply.com

Fuzzy-dedupe a list of records into clusters of likely-duplicate entities. Blocks by normalized token prefix, scores with Jaro-Winkler + token-set…

NOB7E Evidence Verdict

Evaluate a claim or question against one supplied HTML or PDF source and return anchored evidence.

AI Web Extractor

AI Web Extractor — turn ANY url into clean, LLM-ready markdown. POST {url}; get the main content as markdown (boilerplate/nav/ads stripped) with…

fda-iom-api.canvas-cart.workers.dev

Full text of one section of the FDA Investigations Operations Manual (IOM). Get the id from GET /search?q=<keywords> or GET /chapter/:id. Use this…

feed.scalpstream.com

ScalpStream US equity options screener: short-dated (0-30 DTE) options candidates ranked by composite score, with ATR%, relative volume, RSI, VWAP…

FLINT Scan

Pay FLINT $0.01 to scan a separate intended agent transaction before it executes; returns a signed decision record and a linked x402 service-payment…

foretagskoll.lolalex64.workers.dev

Swedish company lookup by organisation number: official name, legal form, active/deregistered status, ongoing liquidation or bankruptcy,…

Foundry CSV Pipeline Integrity

Automated data-pipeline integrity gate for ETL regression detection and breaking CSV/schema changes. Compares profiles, data-quality deltas, and…

fractal-scaling-api.onrender.com

Fractal scale operation - 0.02 USDC per successful request

gate.brix-bee.workers.dev

NYISO real-time zonal LMP via EnergyFeed

genesis-verify.vercel.app

x402 pre-flight: before you pay a target endpoint, check its 402 is well-formed and names one consistent payTo.

gradetv.net

Crédito pré-pago de $0.10 para as APIs da casa

Company Hiring Monitor

Current public Lever job openings, counts by team, department, location, commitment and workplace type. Optional since ISO timestamp filters…

hlrisk.paidapis.net

Hyperliquid BTC/ETH perpetual futures liquidation risk index: notional at risk if leveraged price moves ±1%/3%/5%, position closest to liquidation,…

holiday.agentic-jp.com

Classify a Japanese (JP) calendar date as a public holiday, weekend, or business day. Backed by the official 内閣府 (Cabinet Office) holiday record.

hookpulse.net

Crédito pré-pago de $0.10 para as APIs da casa

hts-classify.x402supply.com

Classify a product description into candidate HS/HTS10 tariff codes. Deterministic BM25 retrieval over the USITC HTS schedule with heading-agreement…

http-security-headers-grade.x402supply.com

Fetches a public http(s) URL (GET, up to 5 redirects, 10s timeout, body never read) and grades its security headers A+ to F. Returns score, present…

ident.halowerk.com

Creates a five-minute inbound SMS lease through a configured licensed provider, polls received messages, and releases the number upstream on…

imf-datamapper-series.x402supply.com

Returns one IMF DataMapper indicator (e.g. NGDP_RPCH real GDP growth) for one or more countries, optionally limited to a year range. Output has…

img402.dev

Upload an image with payment and get a public URL. Accepts multipart form-data (field 'image') or JSON {"file": "<base64>"}. 10MB max, permanent…

Algono Inference

Low-cost OpenAI-compatible Responses API inference over Solana USDC x402.

ItalianCompanyCheck

Italian company registry lookup, verification and KYB pre-check using official/public sources: Registro Imprese / InfoCamere HVD, VIES, GLEIF,…

italycheck.italycheck.workers.dev

Look up an Italian public administration or public-service operator by 11-digit codice fiscale in IndicePA (AgID). Use when an agent must verify a…

japan-agent-api-production.mk-career-planning.workers.dev

Does a JMA warning or advisory in effect now match a stop on this Japan itinerary [{date, prefecture}]? Per stop: matched_advisory (with severity),…

jeonjang.kr

Korean automotive-electronics intelligence (jeonjang = vehicle E/E systems), sold per query. Structured feed of Korean auto-electronics news,…

Agent Transaction Trust

Authorize an autonomous agent's real x402 merchant challenge against an operator-issued policy. Payment for this trust check settles only when the…

khotem.com

SEAL: witnessed cryptographic stamp + timestamp. POST body: {"content":"..."} (hashed and forgotten) or {"hash":"<sha256 hex>"} — content never…

KushBitx AgentProof

A deterministic Base chain identity and official USDC contract-presence check. No request body. Not a token-risk report, transaction simulation, or…

lasso.sh

A Lasso EVM RPC key funded with this USD credit: one endpoint per chain, routed across providers with failover. The paid response returns the key…

listing-grader-ai.lovable.app

Product Listing Preflight — one metered assessment.

Local Business Leads

Find local businesses by city and category. Returns name, phone, address and verified website status (live/broken/none, https, last-checked date).…

m0.aiverall.com

Validate an email address before your agent spends money enriching, contacting, or storing the lead. RFC-shaped syntax check plus live domain DNS…

macro-pulse-x402.onrender.com

Computed economic momentum score for a country (GDP growth, inflation, unemployment trend, synthesized into a single directional signal).

mcp.gapup.io

Foreign exchange currency conversion rate lookup, returns live rate, timestamp and source for any currency pair

mcp.soundside.ai

create_text — $0.01 USDC

Scan MCP manifest for risks

Statically analyse a Model Context Protocol (MCP) server manifest for security risks. Tool descriptions enter the model context, a prime…

x402 Merchant Audit

Is this API safe to pay? Audit any x402 merchant or paid endpoint BEFORE you send money. Answers whether a service is trustworthy, whether it is a…

NewBotLabor Agent Preflight

Celo ERC-20 risk check from live chain state. Returns a single verdict (LOW_RISK/CAUTION/HIGH_RISK, summary, oneLiner, reasons) plus market data…

nostrpulse.xyz

Top Nostr notes and authors by sat-zap velocity over a rolling window. Surfaces real-money sentiment — who the BTC/Nostr economy is literally paying…

OCR Text Extractor

Send a picture, either as a public web address or as base64-encoded image data, and get back the plain text found inside it.

odood.com

POST a URL; get clean, LLM-ready content (Markdown/text/JSON) plus a prompt-injection risk verdict (clean | suspicious | flagged). A defense layer…

okfindex.com

Crédito pré-pago de $0.10 para as APIs da casa

orbylon.com

Full scan of any website, from orbylon.com. Settles directly to the business. You are not charged if the call does not work.

page-extract.x402supply.com

Fetches a URL and returns clean article text/markdown plus metadata. Deterministic, static HTML only, no JS rendering.

pageaudit.online

Crédito pré-pago de $0.10 para as APIs da casa

Botonomy Schema Audit

Audits the JSON-LD structured data on one public web page: P1 for no schema or missing required properties, P2 for a low rich-result score, each…

retraced

X (Twitter) account metadata for any handle (based_in, source app, username-change count, recent-activity proxy). Utility endpoint.

payerproof-production.up.railway.app

Verified on-chain USDC revenue stats for any x402 seller address on Base: total received, transfer count, unique payers, top-payer concentration,…

pii-redact.x402supply.com

Detect and redact PII in text or JSON. Recognizers are pure pattern/checksum matching (regex + Luhn/mod-97/SSN-area validation) — no LLM calls, no…

PitFeed

Formula 1 results by season and round — full classification, points, and DNFs.

pixel402.dylan-caponi.workers.dev

Generate 1-4 AI images from a text prompt using flux-schnell. $0.01 per image (price = $0.01 × num_outputs). Returns a job_id claim ticket; retrieve…

WalletPnL

Wallet realized and unrealized PnL — per-token profit and loss and cost basis for any EVM address

polymarket-snapshot.x402supply.com

Searches Polymarket prediction markets by text and returns current outcome prices, volume, liquidity, end date and resolution status. Read-only…

pontofato.com

Crédito pré-pago de $0.10 para as APIs da casa

pool-alert-detector--biohackflowinfo.replit.app

Actionable Base DEX intelligence — newly created pools enriched with token metadata, stablecoin-based liquidity estimates, transparent heuristic…

PortfolioRisk

Portfolio risk analysis — concentration volatility correlation across holdings

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