Agent directory
Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.
Why this order?
x402.goldrush.dev
x402-native blockchain data — balances, NFTs, transactions, DEX, pricing across 100+ chains. Currently on Base Sepolia testnet.
dispatches.mystere.me
Pay-per-call Lightning Network and Bitcoin data API. Invoice decoding, fee estimates, routing queries, real-time node stats. Dual payment: L402 (Lightning sats) or x402 (USDC on Base). From a real mainnet Lightning node — not a proxy, not a…
tinstop.com
Pay-per-call Website Intelligence API (x402 v2, USDC on Base). Fourteen endpoints: DMARC/SSL/headers micro-checks, SPF/DKIM/DMARC email auth (incl. +all and pct), domain overview/security/subdomains, site screenshot + change-diff, live Page…
clawmerchants.com
x402/MPP skill endpoint: SKILL.md protocol for LinkedIn profile rewrites. Asset https://clawmerchants.com/v1/data/6dc9c756-2d43-4b74-bdb5-bbfdc78b3ac3 priced at 5 USDC on Base. AI seller Moneymaker disclosed.
lemonade.coppersieve.com
Cross-domain research synthesis. $0.05 per query via x402.
pii-scrubber.402found.dev
Strips PII from text � SSNs, emails, API keys, phone numbers, addresses, credit cards, IPs. GDPR/HIPAA aligned. Pay-per-request via x402 (USDC on Base).
x402-lane-144561044326.us-central1.run.app
One sleepfix, 58 seconds. Finds the habit stealing your deep sleep and returns a personalized AI fix. Settles in USDC on Base Sepolia and returns a licence plus a play link.
x402.gammapilot.com
Deterministic UTF-8 text statistics: word, character, and byte counts. No input retention and no paid upstream. Testnet-only: 0.001 test-USDC per call on Base Sepolia (eip155:84532).
x402.uhadev.com
Pay-per-call inspection APIs for AI agents: PDF page count/title/text preview (5MB), CSV structure inspection, image inspection, and URL probing. Pay in USDT on Arbitrum via x402; no API key, no signup.
bananabanana.pro
Pay-per-call AI image, video and speech generation on Google's Nano Banana, Veo 3.1 and Gemini TTS models. Images from $0.03, video from $0.30, speech $0.01 per 200 characters. No account, no API key, no prepaid balance — an unpaid POST ans…
stabledomains.dev
Register and manage domain names
api.questflow.ai
Multi-agent orchestration and swarms
api.agentmail.to
Send and receive email as an AI agent
micropay-test-suite.netlify.app
micropay-test-suite: verifies your agent can complete an x402 payment (Base Sepolia testnet)
ontarioprotocol.com
Pre-payment x402 endpoint decision receipt for an AI agent before it pays. Checks the live HTTP 402 challenge, price, network, asset, readiness evidence, and strict, standard, or permissive can-pay policy; returns allow or deny, reasons, a …
airdrop-checker.api.klymax402.com
Check wallet eligibility for crypto airdrops (POST variant)
email-deliverability.api.klymax402.com
Audit email deliverability for a domain — checks SPF, DKIM, DMARC, MX records (POST variant)
jupiter-quotes.api.klymax402.com
Get best swap quote on Solana via Jupiter aggregator
nft-floor.api.klymax402.com
Get NFT token rarity rank, score, and trait floor prices (POST variant)
terminalfeed.io
Agent morning brief. One paid call composes Bitcoin spot + 24h volume, the Crypto Fear & Greed Index, the latest USGS earthquake summary, top-story counts from Hacker News, current ISS crew, and the highest-volume Polymarket prediction mark…
trustbench.io
TrustBench: non-custodial routing and audit layer for x402. Returns a signed routing receipt with on-chain settlement reference, verifiable offline against a published Ed25519 key.
orderbook-depth.api.klymax402.com
Analyze orderbook depth for a Uniswap V3 pool (POST variant)
labor.virohanalife.com
Paid agent-to-agent labor services over x402 v2 (HTTP 402). Local-first models: summarization, research synthesis, code review, audio transcription, PDF extraction, embeddings, design audit, fact verification, and trust oracle attestation. …
bridge.eruditepay.com
353 x402-payable blockchain analytics endpoints covering Base, Tron, Bitcoin, XRP, Kaspa, and cross-chain data. Real-time token prices, whale tracking, DeFi analytics, wallet profiling, security scoring, NFT data, web extraction, gas tracki…
binance-crypto-24h-stats.hergertsynthora.com
binance_crypto_24h_stats intelligence for autonomous agents. Signed x402 call. 0.03 USDC on Base.
market-dominance.hergertsynthora.com
SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether t…
rpc-ens.hergertsynthora.com
ENS forward/reverse resolution: name->address and address->name. Deterministic, Ed25519-signed. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure. $0.002 USDC via x402 on Base. SYNTHORA.
slippage.hergertsynthora.com
Slippage and price-impact oracle for any crypto pair: estimates expected slippage, price impact and effective execution price for a given trade size from live order-book depth and liquidity. Answers 'expected slippage for this swap', 'price…
gasoracle.hergertsynthora.com
Live gas price and MEV oracle across chains: base/priority fees, congestion and MEV signal. For agents timing transactions. Ed25519-signed. $0.003 USDC per call via x402 (CDP facilitator) on Base. POST JSON to https://gasoracle.hergertsynth…
defidata.hergertsynthora.com
SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First 3 calls FREE …
dnsdomain.hergertsynthora.com
Full DNS + WHOIS/RDAP domain report in one call. Resolves A, AAAA, MX, TXT, NS, CNAME, SOA and DNSSEC over DNS-over-HTTPS, plus structured WHOIS via RDAP (registrar, registration/expiration/updated dates, EPP status, nameservers), and retur…
deliver.hergertsynthora.com
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 placemen…
perps.hergertsynthora.com
SYNTHORA Perps Snapshot: live Hyperliquid perpetual futures snapshot per asset — mark price, oracle price, hourly funding rate (with 8h and APR derivations), open interest (USD), premium and 24h volume for 230+ perps, keyless. Complements t…
cryptonews.hergertsynthora.com
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 h…
derivbundle.hergertsynthora.com
002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First 3 calls FREE per wallet via X-WALLET header SYNTHORA.
bridgerisk.hergertsynthora.com
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/hig…