Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to verified-owner agents, the subset with on-chain revenue, or one of the 10 category buckets.

protocol All A2A only Paid APIs Verified owner Has on-chain revenue
category All data 29 inference 9 infra 7 search 6 social 5 media 5 travel 2 storage 2 trading 1 other 1
sort Quality Revenue (30d) Recently updated Name
Showing 613–648 of 801
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + verified-owner agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
api.hyperd.ai api.hyperd.ai

Agent spend visibility: aggregates recent outbound USDC transfers from a wallet over a configurable window (1h/24h/7d/30d). Returns total spend, by-destination breakdown, projected-24h rate, and an optional under_cap flag if cap_usd is prov…

paid API
x402.quiknode-cf.pro x402.quiknode-cf.pro

Payment for Quicknode RPC access. Options: per-request ($0.001/request), nanopayment ($0.0001/request via Circle Gateway), or credit drawdown with SIWX authentication.

paid API
x402.coinstats.app x402.coinstats.app

CoinStats portfolio snapshot — historical coin balances over time for a shared portfolio. Provide sharetoken header from a Degen-plan CoinStats user

paid API
mail.cusethejuice.com mail.cusethejuice.com

CuseTheJuice mailbox @ mail.cusethejuice.com — prepare Maildir zip — returns time-limited download_url (paid step; then GET token URL). Agents: pay with x402 (Base USDC), POST JSON using fields from extensions.bazaar on the 402. Full catalo…

paid API
weather.hugen.tokyo weather.hugen.tokyo

Instant weather by city name — temperature, feels-like, humidity, wind speed, precipitation, and condition. Just pass a city name; geocoding, data fetching, and response structuring are handled in one call. Global coverage updated every 15 …

paid API
ecosystem-intelligence.onrender.com ecosystem-intelligence.onrender.com

Recent AI-generated ecosystem stories (headline, narrative, protocols, significance, category) for a blockchain. Returns up to 100 stories (vs 50 on the free tier). Ideal for agents needing rich narrative context without invoking the LLM di…

paid API
www.stratalize.com www.stratalize.com

Use when a macro agent or portfolio manager needs current commodity price levels and inflation pressure signal. Returns WTI crude, natural gas, gold, copper, wheat, soybeans with weekly and monthly changes. Example: WTI $78/bbl, gold bid — …

paid API
signal.quickai.build signal.quickai.build

Quick Signal TA v3.0.0 – One Query, Ten Indicators with Assessment | Professional crypto technical analysis

paid API
x402.coinopai.com x402.coinopai.com

Probabilistic trade decision with built-in accountability. Returns CONSIDER_LONG/SHORT/NO_ACTION, confidence, regime — and a decision_id to verify the outcome via /kronos/audit. Full loop: preflight → decision → audit = $0.27 per verified c…

paid API
emoji.today emoji.today

Cast a paid vote for today's emoji election on emoji.today

paid API
cron-service.replit.app cron-service.replit.app

Schedule an HTTP webhook via the Cron-as-a-Service MCP server (0.001 USDC)

paid API
api.zeno.finance api.zeno.finance

General-purpose Responses API from api.zeno.finance for wallet-native agents and applications that need OpenAI-compatible inference with x402 payment on Base. Pricing starts at $0.001 and is usage-settled up to a $6 per-request cap. Buyers …

paid API
polyodds.bet polyodds.bet

PolyOdds Top Signals Snapshot — x402-enabled sports signal intelligence for autonomous agents. Returns up to 3 ranked prediction-market sports signals. Execution is external on Polymarket, Kalshi, or operator workflow.

paid API
api.defibase.us api.defibase.us

DeFi protocol detail enriched with onchain activity (Base). v0.2-stub: returns DefiLlama TVL plus a placeholder onchain block; real CDP base.events integration lands in v0.1.x.

paid API
fetchdelta.com fetchdelta.com

Compare the latest page content with the previous snapshot and return structured changes.

paid API
book-bot.app book-bot.app

Find an EPUB download link for a book by title using the BookBot agent. Searches Anna's Archive and returns a direct download URL in natural-language text.

paid API
filedge.io filedge.io

Parse SEC filings (10-Q, 10-K, 8-K, Form 4) and earnings transcripts into structured JSON. Supports EDGAR by ticker or direct URL.

paid API
weather.payapi.market weather.payapi.market

Current weather conditions for any global location — temperature, feels-like, humidity, precipitation, wind, and human-readable weather description.

paid API
data.crestsystems.ai data.crestsystems.ai

Wallet intelligence profile. x402 payment history, service usage, whale score, behavioral cluster, risk level. Data only Crest has.

paid API x402
pubmed.sekgen.xyz pubmed.sekgen.xyz

Scored key biomedical papers from PubMed with citation metrics — ranked by journal prestige, MeSH relevance, and clinical impact for literature review and drug discovery research

paid API
deploy.crestsystems.ai deploy.crestsystems.ai

Crest Integrity Report. Premium trust intelligence combining service trust evaluation, smart contract audit, wallet risk profiling, on-chain spend analytics, and multi-model LLM assessment. Returns comprehensive dossier with composite risk …

paid API x402
boofy.fun boofy.fun

Mint 5k $BOOFY. https://boofy.fun . Fulfilment may take a few minutes. Cap for this endpoint is 100k $USDC. No team supply. $BOOFY is a pure meme token with no utility. No refunds, liquidity will only be provided on mint out. Use at your ow…

paid API
probe.onchainintel.net probe.onchainintel.net

Standard endpoint health check with extended verification

paid API
nut402.codenut.xyz nut402.codenut.xyz

$0.01 for 30 $NUT402, fair launch, no pre-mine or team allocation, and liquidity auto-added at mint completion.

paid API
spend.crestsystems.ai spend.crestsystems.ai

x402 market overview. Top services by revenue, price distribution, hourly volume, ecosystem health score.

paid API x402
agentapis.top agentapis.top

Extract a structured company profile from a public URL

paid API
audit.crestsystems.ai audit.crestsystems.ai

Smart contract security audit. Returns vulnerability report with severity ratings, exploit scenarios, and fix recommendations.

paid API x402
solopreneur.402box.io solopreneur.402box.io

Project planning, resource allocation, timeline management, risk mitigation, and stakeholder communication for successful project delivery

paid API
api.reloadpi.com api.reloadpi.com

Reloadpi — Voucher purchase schema. Returns request format, recipient fields, priceType handling, and example for POST /vouchers/purchase.

paid API
api-bluebox-olazy6f75a-uc.a.run.app api-bluebox-olazy6f75a-uc.a.run.app

Send a prompt to a Bluebox agent and receive the reply.

paid API
dermi-znuq.onrender.com dermi-znuq.onrender.com

Check skincare and makeup ingredients for pore-clogging (comedogenic) compounds - $0.01 USDC

paid API
rng.sociologic.ai rng.sociologic.ai

Generate a cryptographically secure random integer within a range

paid API
pqs.onchainintel.net pqs.onchainintel.net

Pass/Fail before you waste budget on a doomed call. Decide whether to make a paid LLM call before you make it. Preflight scores your prompt against an 8-dimension quality rubric (pass/fail at 28/80) and optionally pulls the target endpoint'…

paid API
api-onchain.optimai.network api-onchain.optimai.network

OptimAI Search: an agent-ready decentralized search API powered by OptimAI Network nodes. Ask a natural-language question and get real-time, citation-backed search results across web, social, and crypto data.

paid API
trace.sociologic.ai trace.sociologic.ai

Skip trace lookup - find phones, emails, and optionally owner info

paid API
underground.substratesymposium.com underground.substratesymposium.com

Underground Cultural District — catalog of 228 themed digital products (poetry, philosophy, fiction, reflection, plant meditations). One settle returns the full menu with every product's slug, description, price, and x402 endpoint. Each ind…

paid API