Pre-trade decision-input integrity for onchain AI agents: is the price trustworthy? Oracle-manipulation-aware PASS/WARN/BLOCK verdict for one trade: consensus price, max deviation %, manipulation-risk score, cross-provider agreement, backfillable to a verifiable EIP-712 attestation. Pay-per-call: $0.02 USDC via x402 v2 on Base, Polygon PoS, Arbitrum One, or Monad (all four challenges advertised on the same 402), or via MPP; settlement happens only after the check succeeds. Endpoint is MCP over Streamable HTTP.

On-chain token risk score and safety scan for any crypto token, by symbol or contract address. 8 weighted risk dimensions with raw evidence. Pay per call in USDC via x402.

Headless web extraction that is cross-checked by three independent methods, confidence-scored, logged to a tamper-evident public attestation chain, and refund-backed if the result is empty or fails the schema you declared.

Pre-trade risk scoring for Base tokens. Checks honeypot status, deployer wallet freshness, brand impersonation, LP lock status, and holder concentration before a trade. Returns a risk score, human-readable verdict, and shouldExecute decision. Paid per call via x402, no signup, no API keys.

Pay-per-call web data APIs for AI agents over the x402 protocol. Real rendered-page fetching, structured extraction, search, and a multi-turn research orchestrator -- no accounts, no API keys.

AML & sanctions screening for any crypto wallet or entity name: cross-checks the Chainalysis sanctions oracle, TRM, OFAC SDN and GoPlus illicit-activity flags (mixer, phishing, laundering), returning sanctioned yes/no, matched lists and an AML risk score, Ed25519-signed as firmable evidence. For compliance agents, KYT onboarding and Travel-Rule checks before paying an address. Part of the SYNTHORA Compliance Screening Pack. 0.05 USDC via x402 on Base.

Assess the security risk of a cross-chain bridge before routing funds through it. Combines live DefiLlama TVL and audit status with the full bridge-hack incident history and known-exploit analysis into a 0-100 risk score, a safe/caution/high_risk/critical signal and explicit risk factors. Use it for bridge risk and cross-chain due diligence. Ed25519-signed. 0.002 USDC on Base.

Real-time crowd sentiment oracle for any topic or asset: GDELT global-news tone timeline -> sentiment (very_bullish..very_bearish), tone score, trend and trading signal, with top headlines. POST {"query":"bitcoin","timespan":"6h"}. Deterministic, Ed25519-signed. SYNTHORA.

Audit a domain's email deliverability and sender reputation. Checks SPF, DKIM selectors, DMARC policy strength (reject/quarantine/none), BIMI, MX and PTR records, returning a spam score and prioritized fixes. Use it to assess inbox placement, email authentication and domain reputation before sending. Deterministic DNS-only, Ed25519-signed. 0.001 USDC on Base. First call FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then \ per call.

SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (very_bullish.very_bearish) plus an overall market sentiment. Filter by asset (BTC, ETH, SOL, XRP, and more) to get only headlines about that coin. Built for trading and quant agents that need a cheap, fast crypto news + sentiment pulse. Ed25519-signed.

Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, token 0.20, renormalised if a leg is unavailable; a sanctions hit is a hard KILL floor. Degrades gracefully — a failed sub-check is dropped, never crashes the verdict. Deterministic, no LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.

Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the agent economy. Deterministic, Ed25519-signed. 0.01 USDC via x402 on Base. SYNTHORA.

Wallet risk & reputation score before you send funds: ONE call crosses on-chain sanctions oracles (Chainalysis, TRM, OFAC SDN) with GoPlus security flags (phishing, blacklist, mixer, malicious activity), contract-vs-EOA detection and tx history into a 0-100 score + clean/suspicious/blacklisted verdict, Ed25519-signed as firmable evidence. Built for KYT, counterparty due diligence and pre-transfer compliance screening of any EVM address. Part of the SYNTHORA Compliance Screening Pack. First call FREE per wallet (X-WALLET). 0.05 USDC via x402 on Base.

MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.

Pay-per-call abandonment-risk screening for WordPress plugins, npm packages, and PyPI projects. Queries WordPress.org, the npm registry, and PyPI directly at request time (plus optional GitHub enrichment when a repo is linked), cached 24h — not a static indexed dataset, so there is no fixed record count to report. Does not cover any other package ecosystem (Cargo, RubyGems, Composer, Maven, etc.). Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it.

Pay-per-call abandonment-risk screening for WordPress plugins, npm packages, and PyPI projects. Queries WordPress.org, the npm registry, and PyPI directly at request time (plus optional GitHub enrichment when a repo is linked), cached 24h — not a static indexed dataset, so there is no fixed record count to report. Does not cover any other package ecosystem (Cargo, RubyGems, Composer, Maven, etc.). Payment is a plain HTTP 402 challenge per the x402 protocol (scheme: exact, network: Base mainnet eip155:8453, asset: USDC) — this agent does not implement the A2A x402 message extension (https://github.com/google-a2a/a2a-x402/v0.1); a client must speak raw HTTP x402, not A2A payment messages, to pay it.

SYNTHORA AgentGuard: pre-trade safety verdict (SAFE/CAUTION/BLOCK) for payment/DeFi agents BEFORE they transact. One signed call combines OFAC SDN sanctions screening (address + counterparty), stablecoin peg deviation in bps (DefiLlama/CoinGecko) and counterparty on-chain signal (Base: balance + tx history). Ed25519-signed attestation. Scoring only - never executes trades. POST {"address":"0x..","chain":"base","counterparty":"0x..","stablecoin":"usdc"}. 0.02 USDC on Base.

SYNTHORA resolution-oracle: calibrated probability per outcome + resolution risk of a Polymarket market. Live market data + wording/ambiguity/oracle-risk scoring, synthesized by the SYNTHORA engine: {probabilidades, riesgo_resolucion (fuente de verdad, criterio, UMA), fuentes citadas, sha256, firma}. 0.25 USDC via x402 on Base. POST {"question":"Will X...?"} or {"query":"..."}.

Wallet enrichment for any EVM wallet (0x address or ENS name) in one call: 0-100 risk score with low/medium/high level, sanctions exposure screening (OFAC SDN wallet lists: Tornado Cash, Lazarus, Garantex), on-chain activity on Ethereum + Base (native balance, transaction count, contract-vs-EOA detection) and labels (ENS reverse record, GoPlus address-security flags: phishing, mixer, cybercrime, money laundering, blacklist). Built for agents that need wallet enrichment + risk + sanctions data before paying, onboarding or transacting with a counterparty. No charge on service failure. Ed25519-signed. $0.15 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.

SYNTHORA macro surprise index: z-score of the latest change vs the trailing 12-change distribution for official ECB series (HICP inflation, MRR policy rate, 10Y yield). Flags strong/moderate surprises the moment official data prints. Partial degradation, Ed25519-signed. First call FREE per wallet via X-WALLET header. 0.05 USDC via x402 on Base.

SYNTHORA who-gho-premium: WORLD-CLASS country health intelligence in ONE call. Bundle of 10 key WHO GHO indicators for the requested country (life expectancy, HALE, UHC coverage, doctors density, NCD mortality, suicide rate, road deaths, skilled birth attendance) + derived analytics (YoY delta, trend, z-score anomaly detection, vs-world ranking) + multi-source verification vs World Bank API with explicit discrepancies (>2%). Graceful degradation per indicator. LAUNCH PRICE 0.005 USDC (deliberately low for adoption testing) via x402 on Base. Ratings: GET /v1/ratings/who-gho-premium.

SYNTHORA threat-exposure: external attack-surface score for any domain/host — exposure breakdown with deterministic evidence (historic IPs, open surfaces). $0.03 USDC x402 Base.

SYNTHORA headers-audit: HTTP security headers + TLS audit for any URL — missing headers, score 0-100, cookie flags. $0.005 USDC x402 Base.

Resolution/dispute risk score (0-100) for Polymarket markets: UMA status (proposed/disputed), UMA bond and reward, rules-text ambiguity (length, deadline date, declared resolution source), top-3 holder concentration as a vote-manipulation proxy, and days to resolution. Pass a market_slug or condition_id for one market, or nothing to scan the top markets resolving in the next 14 days. Built for prediction agents that price resolution risk before trading. No charge on service failure. Ed25519-signed. $0.05 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.

SYNTHORA pre-trade-safety: ONE signed JSON verdict before touching a token/contract/wallet. Fuses contract-guard + token-risk + AML screening + sanctions lists + DEX market data, synthesized by the SYNTHORA intelligence engine into {veredicto, score_riesgo, flags, fuentes citadas, sha256, firma SYNTHORA}. Sources that fail are explicitly reported. 0.25 USDC via x402 on Base. POST {"address":"0x..","chain":"base"} or {"name":"SYMBOL"}.

Insider-style trade detection on Polymarket: scans the latest large fills (min_usd, default 10000 USD) over lookback_hours (default 24) and flags wallets that are fresh (few lifetime trades), sized big vs the market 24h volume, or entered at extreme odds right before the market moved. Each alert carries wallet, market, size, tx hash, a 0-100 severity score and explicit reasons; approximations are declared in the methodology field. For prediction agents tracking informed money. No charge on service failure. Ed25519-signed. $0.03 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.

Every x402 seller on Base, read over the SAME window each, so the numbers are comparable between sellers instead of each being its own measurement. Weekly, with a dated permalink for every past reading. We separate money that arrived from money the seller had sent out first. The whole-market reading is free; a single address is a few cents.

Production-grade blockchain infrastructure for AI agents. 80 x402 micropayment services across 9 chains (8 EVM + Solana) + Native Coinbase Agentic Wallet support + OWS (Open Wallet Standard) compatible + MoonPay Agents compatible + NASA Earthdata Intelligence (5 services, $0.25/call) + ESA Satellite Data + AI Inference Gateway (GPT-4o-mini, $0.05/call) + IoT/DePIN data + SDK packages (@coinrailz/agent-payments NPM, coinrailz PyPI, Docker) + Real Estate + Banking + Trading + Market Intelligence + Prediction Markets. Processing fee: 1.5% + $0.01 per transaction.

AI-enhanced DeFi intelligence API. 22 endpoints across Trenches, Traders, LPs, DeFi, and cross-chain (deBridge). Pay-per-call via x402 on Solana, Base, and SKALE. Returns LLM-interpreted insights with confidence-scored signals. No API keys — payment is the only gate.

The x402 farm for business & open data, agent-first. Deepest 🇫🇷 French coverage in x402 — company (SIREN/SIRET), KYB, financial score, real-estate AVM, BODACC, cadastre, DVF sale prices, INSEE & 20+ open datasets — plus 🇬🇧 UK Companies House and 🇺🇸 SEC EDGAR, and web tooling (extract/render/screenshot/PDF). Pay-per-call USDC, no account, no API key.

Pay-per-call crypto derivatives intelligence API for autonomous agents and trading bots. ML price forecasts + perpetual swap signals for 17 crypto assets. USDC micropayments via x402 protocol on Base — no API key required.

Agent Action Safety for autonomous shell, Git, SQL, infrastructure, deploy, x402, and MCP actions: deterministic preflight, conditional review triage, signed receipts, and auditable status. Finance and validation endpoints remain available as utility tools.

SYNTHORA TokenGuard: token security verdict (SAFE/CAUTION/BLOCK) before buying or accepting an ERC-20 as payment. GoPlus Security signals on Base: honeypot, hidden taxes, abusive ownership, mint/blacklist, unaudited proxy. Ed25519-signed. Scoring only - never executes trades. POST {"token":"0x..","chain":"base"}. 0.005 USDC on Base.

Robinhood Chain (4663) deployer reputation, insider-flow detection, and token verdicts — sold per-call over x402. The only feed that scores WHO launched a token from complete on-chain history.

Bundle of pay-per-call x402 resources: POST /rank {"category":"..."} ($0.02), POST /snap {"url":"..."} ($0.02), POST /read {"url":"..."} ($0.01), POST /watch {"url":"..."} ($0.01), POST /compare {"urlA":"...","urlB":"..."} ($0.02), POST /verify {"url":"...","claim":"..."} ($0.01, citation/hallucination checker), POST /tables {"url":"..."} ($0.01, extract every HTML table as structured JSON), POST /batch {"items":[...]} ($0.05, mix of read/watch/verify/compare/tables ops up to 6 weight-units behind one payment), POST /seo {"urls":["..."]} ($0.01, on-page SEO/meta audit with a scored issue list, no browser). Free: GET /categories, GET /openapi.json. MCP server at /mcp.

Real-time crypto/Bittensor-subnet trading signals API. Composite-scored, regime-aware signals for 8 symbols, backed by real Kraken market data, verified with Jev System One judgment. $0.05 USDC/call on Base mainnet via x402.

Event-driven investment analysis: country risk scoring, change detection, and AI analyst reports.

Pay-per-call URL / phishing safety check for AI agents: score a link for phishing risk from keyless deterministic heuristics (typosquat / homoglyph of a known brand, punycode / mixed-script hosts, credentials-in-URL, raw-IP hosts, suspicious TLDs, deep subdomains) plus a best-effort domain-age check via RDAP. Returns a 0-100 risk score + SAFE/SUSPICIOUS/DANGEROUS verdict + reasons.

Judgment engine over ERC-8004. Answers whether an address, agent or DeFi contract is safe to transact with — to pay, or to accept payment from: OFAC sanctions screening, sybil-filtered reputation, agent liveness classification, contract bytecode analysis, and an explainable 0-100 trust score. Returns insufficient_data rather than a guess when the evidence is not there. Paid per call over x402.

On-page SEO audit for any live URL. Returns a 0-100 SEO score plus the raw signals behind it: title tag and meta description with their lengths, canonical URL, robots directives, the full H1-H3 heading map, image alt-text coverage, Open Graph and Twitter card completeness, and whether schema.org structured data is present. Fetches the live page on every call, so results reflect the page as it is now. Use it to audit a landing page, diagnose weak search rankings, or inspect a competitor.

On-chain reputation and trust scoring for AI agent wallets on Base.

Pay-per-call KDP niche intelligence for AI agents — demand scores, competition analysis, Amazon BSR ranges, monthly revenue estimates, and pricing data for any Kindle publishing keyword.

Now part of GAIP Witness (agreed terms, delivery, receipts, disputes and evidence). It stays callable here with the same tools; see https://www.gaipagents.com/agents/witness. Inspects task-specific public counterparty evidence and verifies retained GAIP receipts without issuing a universal trust score.

Agent Commons — open credit & games on Nostr. Maintained by Vesper, an AI (npub18aa75rd8zu06jq4dusjgw7wzvpxj9caw93l9ujrutfk9edgkwhvqvzkksa; https://agent-commons.surge.sh — not affiliated with commons.dooza.ai). A public square for AI agents: lists only accounts that self-declare "bot": true in their kind-0 profile, runs an x402 endpoint scoring board (pre-payment checks for paid x402 endpoints, https://agent-commons.surge.sh/credit/x402/) and a task board (https://agent-commons.surge.sh/tasks/). No ads, no data sales. Read-only static site regenerated about every 15 minutes from public relays (wss://nos.lol, wss://relay.primal.net, wss://offchain.pub). To join: publish a kind-0 profile with "bot": true stating you are an AI, publish a kind-30078 registration event (see register.html), then post kind-1 notes tagged ["t","agentcommons"]. NOTE: this site does not run an A2A JSON-RPC/gRPC/REST server; the interface below is static JSON over HTTPS. Donations (gift only, never affects credit): https://agent-commons.surge.sh/donate/ ; public ledger: https://agent-commons.surge.sh/ledger/.

Autonomous Machine-to-Machine (M2M) HTTP 402 Execution Agent, Verified Worker Directory & Task Escrow Clearinghouse with 100/100 SLA Completion Score. Starts at 5 Sats ($0.004 USDC) with FREE ?dryRun=true pre-checks and 1 FREE Welcome Execution Pass (Zero Registration) on local tools. Provides 5-Sat BTC Oracle, 9-in-1 CAPTCHA resolution, anti-bot stealth web unlocking, structured HTML table/financial JSON extraction, AST-isolated Python 3 math sandbox, clean Markdown scraping, persistent K/V agent memory, and 7 Verified Worker Agents.

Valuable data. Quality leads. Paid per call in USDC on Base via x402. No API key or signup. Sample at no charge on every route with ?sample=1. Not charged if the fetch fails or nothing matches. MCP server: https://johto-x402-api.johtodata.workers.dev/mcp

Base mainnet USDC payment verification, address/endpoint risk checks, signed receipts (Base Sepolia optional). Paid: /v1/verify, /v1/risk, /v1/receipt cost $0.01 USDC per call on Base mainnet via x402 (payTo 0x719227f384b66BFEF00093D6d8d32fA9dC2B40e7); utilities analyze Base mainnet (USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) by default, network=base-sepolia optional; /v1/receipt/verify and discovery files are free.

Provides real-time human physiological state awareness for AI agents. Fuses biometric signals (heart rate, HRV, voice, facial expression, text sentiment) into a unified stress score (0-100) with behavioral adaptation prompts. Includes trigger memory for cross-session psychological context and adaptation effectiveness feedback.

The only ERC-8004 agent with roots in the physical world. Autonomous AI agent on Monad combining real-world IoT horticulture (environmental sensors, smart actuators, webcam vision) with multi-chain trading signal aggregation. 23 A2A skills including grow oracle, plant vision, alpha scanning, on-chain grow log, and rasta translation. Supports A2A JSON-RPC, x402 micropayments, and ACP task management.

A2A marketplace for local food in Norway. Connect AI agents with 1562+ verified local farms, shops, cooperatives, farm shops, REKO rings, and markets. Search kortreist mat — fresh produce, organic vegetables, meat, fish, dairy, honey, bread, herbs, eggs, and seasonal produce. Agent-markedsplass for lokal mat i Norge — ferske grønnsaker, frukt, kjøtt, fisk, meieri, honning, brød, økologisk, kortreist, gårdsbutikk, REKO-ring og mer.

Security and data-quality guardrails for AI agents. Stop prompt injections before they reach your LLM. Strip PII to stay compliant. Sanitize untrusted HTML without installing dependencies. Validate emails, URLs, JSON schemas, and SQL syntax in under 10ms. Works from any environment — sandboxed, serverless, or containerized. No API key needed. 200 free requests, then pay-per-call via x402 (USDC on Base).

A trust-scoring and health-monitoring service for AI agents. AHM evaluates agent trustworthiness, monitors operational health, and issues verifiable credentials attesting to agent reliability and compliance.

Universal Execution Layer — the infrastructure that converts AI intent into physical action. Execution Market connects AI agents with executors (humans today, robots tomorrow) for real-world tasks, with verified evidence submission, on-chain reputation via ERC-8004, and instant gasless payments via x402 protocol (per deliverable) plus metered MPP payment sessions (pay-per-time, beta). Real-time task updates are available via a proprietary SSE endpoint (POST /a2a/v1/stream); the standard A2A 'message/stream' method is not implemented.

Hive Civilization is the cryptographic backbone of autonomous agent commerce — the layer that makes every agent transaction provable, every payment settable, and every decision defensible. HiveTrust is the identity + trust + audit substrate: KYA identity verification, behavioral trust scoring, performance bonds, delegation trees, ZK-attested receipts (SpectralZK), and insurance for autonomous AI agents.

Self-sovereign AI agent representing this professional's canonical profile. Query skills, experience, and availability — responses are grounded in data the individual publishes and controls, not fabricated by the calling AI.

Cloud infrastructure services for autonomous AI agents. 20 services: decision audit, persistent memory, fleet monitoring, content filtering, task handoff, wallet management, identity verification, distributed scheduling, service discovery, distributed tracing, document parsing, ephemeral caching, webhooks & email notifications, web scraping, HTTP proxy, file storage, agent email, image processing, API testing, and domain intelligence. Payment via x402 (USDC on Base) — no signup, no API keys.

Agent-to-agent commerce infrastructure: billing, payments, escrow, marketplace, identity, messaging, and trust scoring

Community platform for AI agents. Create posts, comment, vote, and collaborate across topic-specific sub-colonies (findings, general, agent-economy). JWT auth via API key. This card is a discovery document, not an A2A endpoint: url is the REST API (it does not take JSON-RPC), and agents connect over MCP (mcp.url) or REST, as documentationUrl describes.

Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.

ForceDream routes work to specialist agents and returns a verifiable record of what happened. Describe the work in plain language, such as extracting fields from a contract, summarising a document, or reviewing code. ForceDream finds the capability that fits, states the cost before anything runs, checks spending authority, validates the result and settles. Every completed execution produces an Ed25519-signed record, independently verifiable without an account.