A2A earnings → wallet ranking, coverage and attribution
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?
agentpay.help
Pay-per-call AI microservices via x402 — 34 services across web search, agent memory, geocoding, gas, prediction markets, AI reasoning, insurance, crypto/DeFi, security, compliance and data. USDC on Base, no accounts or API keys.
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…
pay.hergertsynthora.com
SYNTHORA provides signed, pay-per-call intelligence products for autonomous agents over x402 on Base. The product list is generated from the current discoverable registry.
presign.hergertsynthora.com
Pre-sign security verdict for autonomous agents: before an agent SIGNS and settles a transaction, get an allow/warn/block verdict with reasons. Decodes the calldata to catch UNLIMITED approvals (spender can drain the token without further s…
crossref-work-by-doi.hergertsynthora.com
Returns authoritative Crossref registration metadata for any DOI: title, authors, container journal, ISSN, publisher, reference list, funder and license info as structured JSON. A core keyless enrichment endpoint for autonomous research age…
pollen-uv-index-forecast.hergertsynthora.com
Returns hourly UV index plus alder, birch, grass, mugwort, olive and ragweed pollen concentrations for any European coordinate from Open-Meteo's air-quality (CAMS) API. Autonomous health, pharma, retail and allergy-alert agents consume it f…
rocket-launch-schedule.hergertsynthora.com
Returns upcoming worldwide rocket launches with provider, vehicle, mission, pad, location and net launch window from the Launch Library 2 (The Space Devs) API, keyless. Autonomous aerospace, media, logistics and travel agents consume it for…
codeaudit.hergertsynthora.com
Multi-LLM Smart Contract Audit: 3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper source. Severity: clean/low/medium/high/critical. Ed25519-signed, publishable on-chain. POST {"source":"pragma sol…
rxnorm-approximate-spell-match.hergertsynthora.com
Returns ranked fuzzy / spelling-tolerant RxNorm candidate concepts for a misspelled or partial drug term via NLM rxnav.nlm.nih.gov/REST/approximateTerm, each with rxcui, score and source. Autonomous agents and agent-to-agent (A2A) intake, O…
bot.dragonballfr.com
Dragon Ball A2A hub of dragonballfr.com: real sourced RAG answers (manga, databooks, wiki; Fandom is never a source), measured OCR and translation status, and an order box for Codex, agy, Claude, local workers and sub-agents (a result exist…
royal-gateway-x402.fly.dev
Royal Agentic Enterprises x402 platform catalog: 16 live paid services and 27 endpoints discoverable in one place (USDC on Base, per-call, no API keys, $0.01–$5.00). The gateway itself is free: catalog, machine pricing, OpenAPI, A2A guidanc…
doaj-article-search.hergertsynthora.com
Searches the Directory of Open Access Journals article index, returning titles, authors, DOIs, journal, ISSNs, abstracts and open-access full-text links as JSON. A keyless endpoint for autonomous research agents and agent-to-agent workflows…
x402meta.hergertsynthora.com
x402 preflight / reputation — verify BEFORE you pay. Give it an x402 endpoint_url (or a payTo address) and it returns, in one cheap deterministic call: is the resource reachable, is it present in the CDP Bazaar discovery catalog (serviceNam…
defiverdict.hergertsynthora.com
DeFi Strategy Verdict: evaluates a yield/LP/staking strategy for real risk — smart contract check, APY sustainability, IL risk, Ed25519-signed verdict (execute/monitor/avoid). POST {"protocol":"Aave","pool_address":"0x..","apy_pct":12.5,"tv…
address-risk.hergertsynthora.com
AML/malicious-address screen: is this wallet a known scammer, sanctioned, mixer, or honeypot deployer? GoPlus intelligence, Ed25519-signed verdict. Pre-pay safety for agents. Free source. $0.02 USDC via x402 on Base. SYNTHORA. First 3 calls…
402utils.com
Returns an echo response after a paid request is made.
x402-earn-server.onrender.com
Self-test endpoint to trigger x402 listing using wSOL
guard.safepay402.com
Pre-payment security check for x402 payments. Analyze an x402 payment recipient (payee) and terms before your agent sends funds. Returns an explainable verdict (ALLOW / REVIEW / BLOCK / UNKNOWN) with a 0-100 risk score, named risk signals a…
hackathon-2026-renat-576883977581.europe-west1.run.app
Build and test a standalone data pipeline composed from declared capabilities. Settlement happens only after successful build and tests.
agent402-deploy-production.up.railway.app
UUIDs on demand: version 4 (random) or version 7 (time-ordered, sortable), up to 100 per call. Use it when an agent needs identifiers for records, requests or files, or a sub-cent call to test an x402 client end to end before buying anythin…
combify-compute-production.up.railway.app
Short prompt in, text out (Llama 3.1 8B instruct), fixed price $0.01 USDC. POST JSON body {prompt (required, max 2000 chars), max_tokens (optional 1-512, default 256)}. Unpaid calls get 402; paid calls settle only on success.
x402donghang.duckdns.org
Pay-per-call agent APIs led by live crypto narrative research: recent X and web evidence, CoinGecko market context, structured JSON, and source URLs. Also provides bilingual context briefs, summarization, and OpenAI-compatible chat. USDC vi…
api.openzoo.fun
OpenAI-compatible LLM inference paid per request via x402 — no account or API key. Chat completions with SSE streaming; free model catalog with live pricing at /v1/models.
api.venturebot.party
URL in, clean Markdown out. Mozilla Readability + Turndown with GFM tables strip nav, ads, and boilerplate so agents ingest just the article text. 5 free calls/day/IP, then $0.01/call from prepaid USDC-on-Base credits verified on-chain. No …
api.exo-trust.com
Paid AI-utility micro-tasks for agents over x402 (USDC on Base, exact scheme): classify, summarize, translate, proofread, rewrite, extract, code_explain. Strict JSON out, no account and no API key.
data-selling-api-53234eff36dc.herokuapp.com
experiment-001-production-90c3.up.railway.app
experiment-008-production.up.railway.app
deal-verdict-api-production.up.railway.app
Resolve a plain-language product to canonical models, check every reachable retailer, and return a single deal verdict (deal / no deal / insufficient data) with a discount, confidence, and coverage report. Sells the answer, not the underlyi…
api.verigrace.com
DeFi protocol risk score (0-100) with factor breakdown: TVL momentum, APY level, stablecoin exposure, pool concentration, oracle redundancy, contract age. Pay-per-call: 0.10 USDC on Base via x402. Source: DefiLlama (public data only).
x402.mode.network
Mode-x402 is a complete library of signals and indicators for intelligent trading agents
speaking-guild-agent-tools.thespeakingguild.workers.dev
Create a structured professional communication brief using The Speaking Guild's Clarity Contract, Speech Architecture, Audience Gravity, Authority Transfer, and Delivery Navigation frameworks.
quotesheet.panmediatech.workers.dev
Compare x402 prices before you pay. Live multi-URL quote board for AI agents: probe up to 8 Bazaar/paid API endpoints in parallel, read payment requirements (price, payTo, network), rank cheapest and fastest valid sellers, filter by budget.…
vietnam-holiday-api.kdlcfa.workers.dev
VN30 proxy — VFMVN30 ETF tracking Vietnam's top 30 HOSE blue-chip stocks, delayed quote
pamp.x420.dev
Buy custom USDC amount worth of PAMP tokens 0xFC265F5385625AEb988AB46B1e7FB37AcE6a6b07
devpkg-intel.bowling-anthony.workers.dev
Latest version, licence, deprecation, repository and dependency count for an npm, PyPI or crates.io package. Live from the registry.