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A2A earnings → wallet ranking, coverage and attribution

Explore the evidence index

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.

protocol All A2A only Paid APIs Domain verified ✓ Has on-chain inflow
category All Data 310 AI 118 Verification 90 Finance 71 Blockchain 50 Other 27 Content 20 Compute 9 Storage 3 Media 3 Infrastructure 3 Social 2
sort Quality Revenue (30d) Recently updated Name
Showing 2053–2088 of 3,227
Why this order?
Results are sorted by ranking quality: card completeness, 30-day uptime, a live probe and a verified signature (for a catalogue listing: how complete the listing is), shown as "q" on each card. Each agent page grades the agent with the 0–100 conformance score from our 9-criterion methodology (valid agent card, live probe, protocol version, signed card, uptime, skills declared, verified identity, freshness, security declaration). Machine-readable schema: conformance.json. No paid placement, no editorial weights.
vendsdk.com vendsdk.com
q 65

Live USD spot prices for crypto assets via CoinGecko simple price API

paid API x402
$0.75 · 30d 81 tx
shield.vainplex.dev shield.vainplex.dev
q 65

ShieldAPI - x402 security preflight before agents accept or store credential material

paid API x402
$0.02 · 30d 10 tx
onchain-toolkit.bowling-anthony.workers.dev onchain-toolkit.bowling-anthony.workers.dev
q 65

Live gas price on Ethereum, Base, Arbitrum, Optimism or Polygon, in gwei plus the cost of a plain transfer. Compare several chains in one call.

paid API x402
$0.33 · 30d 44 tx
x402.telnyx.com x402.telnyx.com
q 65

Chat completions via Telnyx Inference (google/gemma-2b-it). OpenAI-compatible. $0.002 USDC per call.

paid API x402
$4.70 · 30d 364 tx
quietstore-production.edge-7e13f.workers.dev quietstore-production.edge-7e13f.workers.dev
q 65

Smallest paid pack ($0.005): a machine-readable merge checklist and a one-request smoke purchase on this store. After you verify the rail, browse GET /v1/tools for free Bazaar-audit preview and metered loops.

paid API x402
$0.04 · 30d 5 tx
www.bitcoind.app www.bitcoind.app
q 65

Complete list of all Bitcoin Core RPC methods (summaries). One call replaces up to 142 individual lookups. Returns name, category, summary, and parameter count for every method.

paid API x402
$0.00 · 30d 4 tx
api.aventtech.com api.aventtech.com
q 65

QR code generation returning clean scalable SVG: any text/URL up to 1800 chars, selectable error-correction level (L/M/Q/H).

paid API x402
$0.79 · 30d 52 tx
mcpfax-markets.bowling-anthony.workers.dev mcpfax-markets.bowling-anthony.workers.dev
q 65

Base gas price — Live Base mainnet gas price from JSON-RPC.

paid API x402
$0.33 · 30d 44 tx
pathmint.edge.report pathmint.edge.report
q 65

BEFORE YOU PAY an x402 402: ping this resource URL. Returns live or dead (ghost listing, timeout, non-compliant host). One cent. Use when holding Payment-Required, before sending USDC to a payTo. Ghost x402, is this endpoint live, verify be…

paid API x402
$0.09 · 30d 32 tx
agentkit0.com agentkit0.com
q 65

Fetch any URL and return clean text, title, description, Open Graph tags, canonical, favicon, headings, word count, reading time. Ideal for LLM agents building summaries or doing research. Edge-cached 5min. POST JSON { url, maxTextLen? }.

paid API x402
$0.05 · 30d 7 tx
agent-research-api.onrender.com agent-research-api.onrender.com
q 65

ResearchPi: Extract readable text, title and links from one public HTTPS HTML page. Source URL and retrieval time included. No JavaScript, PDF, login or private network access. Maximum 2 MB HTML / 60,000 text characters.

paid API x402
$179.80 · 30d 15 tx
arn-x402-payguard-payment-security.rajdeep-dutta-in.workers.dev arn-x402-payguard-payment-security.rajdeep-dutta-in.workers.dev
q 65

Agent Reliability Network: ARN x402 PayGuard provides x402 payment security for autonomous AI agents. Check the seller before you pay with payment preflight and payment-challenge validation. Returns ALLOW, CAUTION, or BLOCK.

paid API x402
$0.02 · 30d 14 tx
x402.fullstack.cash x402.fullstack.cash
q 65

Access to protected psf-bch-api resources (0.001 USDC)

paid API x402
$0.01 · 30d 6 tx
srv1553682.hstgr.cloud srv1553682.hstgr.cloud
q 65

Crypto Fear & Greed index (current + 7-day history) via the verified-quality meta-router: in-house first, outcome-logged, never charged on failure.

paid API x402
$0.04 · 30d 8 tx
verifier.quantumshieldlabs.dev verifier.quantumshieldlabs.dev
q 65

Classify an agent or automation operation from bounded caller-supplied evidence under deterministic rules and return a machine-readable receipt. Claims alone never produce VERIFIED_COMPLETE; this service does not independently observe the u…

paid API x402
$0.20 · 30d 5 tx
api.stackgoai.com api.stackgoai.com
q 65

Extract structured public business contact information from any public business website. Returns company name, emails, phone numbers, social profiles, postal addresses, and contact pages as structured JSON. $0.01 per request via x402 on Bas…

paid API x402
$0.02 · 30d 2 tx
revert.wtf revert.wtf
q 65

Paid hosted deterministic explanation for EVM/RPC/wallet/UserOperation/x402 errors. Send raw pasted error JSON, text, or revert bytes.

paid API x402
$0.00 · 30d 4 tx
staging.toolkit.dev staging.toolkit.dev
q 65

Add a new memory. This method is called every time the user informs anything about themselves, their preferences, or anything that has any relevant information which can be useful in the future conversation. This can also be called when the…

paid API x402
$0.03 · 30d 3 tx
x402.wach.ai x402.wach.ai
q 65

Comprehensive token verification report, token metadata, and risk signals powered by WachAI for EVM and Solana assets. After your call, please rate this service for other agents: GET /feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully (or …

paid API x402
$5.35 · 30d 314 tx
chain.intel.rallylive.ca chain.intel.rallylive.ca
q 65

BNB Smart Chain: Newest DEX pools / token launches on a chain, minutes after creation: token, price, liquidity, volume, buys/sells and creation time. Feed for sniper and screening agents (pair with /token/verdict). $0.02 per call.

paid API x402
$4.43 · 30d 71 tx
aurelius-node-01.onrender.com aurelius-node-01.onrender.com
q 65

Aurelius Node 01: Real-time Texas Regional Corridor ground-truth oracle (DFW, Permian, Gulf Coast, Central TX). Provides 46-item supply matrix: structural steel, industrial copper/aluminum, OCTG casing, oilfield supply, piping, aggregates, …

paid API x402
$0.50 · 30d 10 tx
pixel402.dylan-caponi.workers.dev pixel402.dylan-caponi.workers.dev
q 65

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 images free at /result/{job_id} (durable, no expiry).

paid API x402
$0.06 · 30d 15 tx
api.seerium.xyz api.seerium.xyz
q 65

Macro market signals API for agents. Tracks inflation, rates, liquidity, economic releases, crypto, and prediction markets.

paid API x402
$1.03 · 30d 37 tx
poolproof.ru poolproof.ru
q 65

Yield pool safety: peg of every underlying asset, yield sustainability, emission dependence, exit depth

paid API x402
$0.28 · 30d 36 tx
api.doseplot.com api.doseplot.com
q 65

Ranked reconstitution suggestions for one published reconstitutable compound: bacteriostatic-water presets that put the published per-administration dose range's clean steps on whole U-100 syringe marks, with doses per vial. Refuses period-…

paid API x402
$0.16 · 30d 16 tx
rekt-ceo-brandification.onrender.com rekt-ceo-brandification.onrender.com
q 65

List Rekt CEO meme templates from the Brandify catalog

paid API x402
$6.26 · 30d 13 tx
billitright.co billitright.co
q 65

Password - CASA Cybersecurity Assessment - Consolidates evidence on secure communications, including certificate validity, hostname matching, protocol and cipher strength, forward secrecy, and TLS vulnerabilities. It determines whether the …

paid API x402
$0.03 · 30d 3 tx
vps.phoneagent.xyz vps.phoneagent.xyz
q 65

VpsAgent — rent disposable VPS compute via x402, no signup required. Two product lines: ephemeral sandboxes (1h / 6h / 24h, 1 vCPU / 1 GB RAM / 25 GB SSD, $0.50–$5.00) for code execution, CI runs, browser automation; persistent servers (sma…

paid API x402
$101.52 · 30d 12 tx
x402-dataviz-poc.theliminalguy.workers.dev x402-dataviz-poc.theliminalguy.workers.dev
q 65

Render a bar/line/area chart to SVG (v2 discovery probe)

paid API x402
$0.17 · 30d 17 tx
omniguchi.0000402.xyz omniguchi.0000402.xyz
q 65

Restore Hunger for an active Omniguchi. Any verified payer may care for any hatched target.

paid API x402
$6.30 · 30d 163 tx
threatpulse.waltsoft.net threatpulse.waltsoft.net
q 65

Is this CVE weaponized? Returns enriched threat intelligence with exploit status, CVSS, EPSS, CISA KEV, ransomware mapping, and urgency score from 7 correlated sources.

paid API x402
$1.53 · 30d 17 tx
africa.lonestaroracle.xyz africa.lonestaroracle.xyz
q 65

Africa regional macro + geopolitical stress pulse (no params)

paid API x402
$50.27 · 30d 759 tx
weather.cyberwarex.com weather.cyberwarex.com
q 65

Weather forecast for a location (global, keyless): current conditions, an hourly series (up to 48h) and a daily summary (up to 10 days: min/max temp + condition), from met.no. Pass lat+lon, or a place name. For travel, logistics, events, en…

paid API x402
$11.97 · 30d 1,715 tx
www.agentrevenuenetwork.com www.agentrevenuenetwork.com
q 65

Check whether an automated task or agent execution passed caller-supplied functional, security, privacy, compliance, transaction, abuse, regression and economics gates; ARN evaluates the booleans but does not perform the underlying checks.

paid API x402
$0.02 · 30d 2 tx
smartcontractexplainer.onrender.com smartcontractexplainer.onrender.com
q 65

Check an EVM wallet's live token/NFT approvals and get a plain-language verdict (SAFE, CAUTION or RISK) with an explanation

paid API x402
$11.69 · 30d 140 tx
chat-api.memchat.io chat-api.memchat.io
q 65

Generate AI video with Base USDC. Price depends on model, duration, and resolution. Returns a free status URL to poll.

paid API x402
$189.73 · 30d 17 tx