Skip to content

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 473 AI 226 Verification 141 Finance 115 Blockchain 84 Other 51 Content 44 Compute 20 Web 14 Search 13 Inference 9 Media 7
sort Quality Revenue (30d) Recently updated Name
Showing 3421–3456 of 4,729
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.
mcp.yield.xyz mcp.yield.xyz
q 65

Discover DeFi yield opportunities across 80+ networks — 3,300+ staking, lending, vault, and RWA yields from Lido, Aave, Morpho, and more. Filter by token, network, yield type, or provider and sort by APY or TVL. Returns yield IDs (needed by…

paid API x402
$0.56 · 30d 58 tx
x402.tbs-digital.com x402.tbs-digital.com
q 65

Complete crypto and DeFi snapshot in ONE call for AI agents: spot prices for your tokens, full market data (market cap, 24h volume, supply, 24h change) for the lead token, top-10 chains by TVL, and the best yield pools by APY. Prices, marke…

paid API x402
$0.04 · 30d 40 tx
madoromi.fun madoromi.fun
q 65

Japanese dream-interpretation agent API. Returns a Gemini-generated full interpretation from madoromi's curated dream-motif knowledge base (result schema agent-dream-insight.full.v1). Japanese output only. Dream text is never stored or logg…

paid API x402
$0.30 · 30d 30 tx
x402-data-api.onrender.com x402-data-api.onrender.com
q 65

IP geolocation: country, region, city, coordinates, and timezone for any IPv4 or IPv6 address. Fast in-memory lookup for analytics, fraud, and personalization agents.

paid API x402
$0.91 · 30d 149 tx
farouter.tech farouter.tech
q 65

[OI]-compatible LLM inference API for autonomous agents. Supports reasoning, coding and chat workloads. Pay with USDC on Base using x402 (upto scheme, true-up billing): the 402 quotes a spending CAP (estimated input tokens + your max_tokens…

paid API x402
$392.51 · 30d 12,816 tx
x402.devvizion.com x402.devvizion.com
q 65

Research outline 0.01 USDC (first pay · Base). Ladder: free GET /v0/sample-outline.json → POST /v0/outline → brief 0.02. Machine settle: GET /first-buy.json · lander /start · /.well-known/x402.

paid API x402
$0.26 · 30d 23 tx
app.tenna.ai app.tenna.ai
q 65

Latest Sealed BTC Forecast. Latest sealed five-minute LUMI, TENNA, and consensus forecast from TENNA Observatory, including English commentary, recent accuracy, and eligible live edge-node consensus. Reuses existing app.tenna.ai output with…

paid API x402
$0.40 · 30d 38 tx
agent-arcade.use.x402atlas.com agent-arcade.use.x402atlas.com
q 65

Twenty-Four daily math puzzle — four numbers to combine into exactly 24; deterministic solvable UTC daily challenge for agent reasoning benchmarks.

paid API x402
$12.29 · 30d 462 tx
quokkapix.com quokkapix.com
q 65

QuokkaPix image agent unlock for image-standard. Media stays local on the user's device.

paid API x402
$0.14 · 30d 14 tx
youtube.use.x402atlas.com youtube.use.x402atlas.com
q 65

Full transcript of any YouTube video by video id or URL: captions/subtitles as clean plain text plus timestamped segments, the video's chapter markers, and every caption track it offers so an agent can pick a language and re-fetch. YouTube …

paid API x402
$12.29 · 30d 462 tx
jmt-x402-proxy.jmthomasofficial.workers.dev jmt-x402-proxy.jmthomasofficial.workers.dev
q 65

Raw RDAP registration record for a domain, returned as structured JSON.

paid API x402
$0.95 · 30d 42 tx
agent.massive.com agent.massive.com
q 65

Get the most recent news articles relating to a stock ticker symbol, including a summary of the article and a link to the original source. Can't find what you're looking for? POST feedback to /feedback, no charge.

paid API x402
$8.70 · 30d 870 tx
sqlpermit.schemasure.com sqlpermit.schemasure.com
q 65

Decide whether an agent-authored PostgreSQL statement complies with an execution policy, using PostgreSQL's own parser rather than pattern matching. Detects statement stacking, data-modifying CTEs, COPY PROGRAM, privilege changes, and dange…

paid API x402
$5.51 · 30d 453 tx
x402.lucidcove.org x402.lucidcove.org
q 65

Settlement canary: returns a timestamped pong JSON after USDC micropayment. Use to verify x402 client + wallet + facilitator end-to-end.

paid API x402
$0.02 · 30d 16 tx
api.justaname.id api.justaname.id
q 65

Resolves an ENS name into its addresses, text records, and content hash, with batch support up to 50 names and per-name chain scoping via interop addresses.

paid API x402
$0.06 · 30d 11 tx
app.fortiblox.com app.fortiblox.com
q 65

List every token FortiSwap routes on the X1 blockchain (XDEX + Degen launchpad): mint, symbol, name, decimals, logo, USD price, 24h volume, TVL, trust tier. Call this first to resolve a symbol to a mint before quoting or building an X1 swap…

paid API x402
$0.01 · 30d 5 tx
orcpin.dev orcpin.dev
q 65

x402 endpoint reliability pre-flight: factual service-delivery measurements of a target x402 endpoint before an agent pays it — reachability/uptime rate, valid-402 rate, response latency (p50/p95/p99), last status, and sampled paid delivery…

paid API x402
$155.25 · 30d 18 tx
x402.api.browser-use.com x402.api.browser-use.com
q 65

Browser Use: AI browser automation agents in the cloud. POST a natural-language task and an agent navigates websites, fills forms, clicks buttons, extracts structured data, and completes multi-step workflows just like a human. Stealth-enabl…

paid API x402
$27.00 · 30d 27 tx
ssl.use.x402atlas.com ssl.use.x402atlas.com
q 65

SSL/TLS certificate check: expiry, issuer, SANs, chain validity, hostname match, negotiated protocol/cipher, and weak-algo warnings for a public HTTPS host. Clean JSON.

paid API x402
$0.20 · 30d 20 tx
preppers-paradise.com preppers-paradise.com
q 65

Paid book chapter (x402): Automate the Boring Stuff with Python: What Is Programming. Unit of a larger practical-skills library; free catalog at /library/discovery.json. Book slug: automatetheboringstuffwithpythonnew. Response format: Markd…

paid API x402
$0.23 · 30d 23 tx
x402-adsb.x402-adsb-worker.workers.dev x402-adsb.x402-adsb-worker.workers.dev
q 65

Live aircraft positions over Kansai / western Japan from an independent ADS-B receiver (~1s freshness): position, altitude, speed, squawk, plus callsign→route resolution (origin/destination airports) from official timetables.

paid API x402
$0.02 · 30d 19 tx
uptime.cyberwarex.com uptime.cyberwarex.com
q 65

Fleet-wide uptime statistics for every monitored endpoint: uptime percentage, average response time, and total check count over 1, 7 and 30 day windows (plus an optional custom window). Use it to get an at-a-glance reliability picture of a …

paid API x402
$11.97 · 30d 1,715 tx
flights.use.x402atlas.com flights.use.x402atlas.com
q 65

Flight search by departure and arrival airports in the URL — compare live itineraries, fares, schedules, stops and emissions across airlines, similar to Google Flights, as clean JSON.

paid API x402
$12.29 · 30d 462 tx
brasil-dados-api.onrender.com brasil-dados-api.onrender.com
q 65

Official USD/BRL and EUR/BRL exchange rates (PTAX, Central Bank of Brazil).

paid API x402
$0.10 · 30d 48 tx
chrono.schemasure.com chrono.schemasure.com
q 65

Resolve a local time to an exact UTC instant with explicit DST ambiguity handling, business-day arithmetic, public-holiday status, and working-hour overlap across timezones. Detects ambiguous and nonexistent local times instead of silently …

paid API x402
$5.51 · 30d 453 tx
x402.aispace.bot x402.aispace.bot
q 65

OpenAI-compatible chat on 100+ Venice models via x402 USDC (Base). Model from GET /api/v1/models?type=text; personas via /characters. Thinking models: empty content + reasoning_content is success; use venice_parameters.disable_thinking for …

paid API x402
$50.85 · 30d 190 tx
agentres.dev agentres.dev
q 65

Restaurant recommendations from the Blackbird network (~2,000 curated restaurants, mostly NYC and San Francisco). Full-text search plus city/neighborhood filters, with complete specials on every result, refreshed daily from a cache (never a…

paid API x402
$4.01 · 30d 102 tx
rpc.nodeflare.app rpc.nodeflare.app
q 65

Base RPC (chain 8453): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive) - good for indexin…

paid API x402
$130.01 · 30d 118 tx
omniterminal.app omniterminal.app
q 65

Omni Terminal delivers fresh, deduplicated market-moving news and catalyst context across equities, crypto, macro, and forex for AI trading agents.

paid API x402
$0.07 · 30d 16 tx
gas.apitoll.cloud gas.apitoll.cloud
q 65

Base gas oracle / gas price API for AI agents and bots — get the gas price for a transaction on Base in one x402 call. Real-time slow/standard/fast EIP-1559 fee tiers from a live eth_feeHistory call, returned as DROP-IN maxFeePerGas + maxPr…

paid API x402
$0.12 · 30d 120 tx
chat.gedx402.com chat.gedx402.com
q 65

Multi-model chat completions. POST messages[] and set model to any LLM id from GET /v1/models; dynamic USDC pricing scales with model and token usage. Hero: GET /heroes/chat-completions.

paid API x402
$4.13 · 30d 283 tx
api-dev-v2.ixs.finance api-dev-v2.ixs.finance
q 65

IXS Real world asset vaults — 6% yields, BlackRock exposure, tokenized on-chain

paid API x402
$0.05 · 30d 46 tx
402timezones.vercel.app 402timezones.vercel.app
q 65

Convert a time between any two IANA time zones (DST-aware). Pay-per-call in USDC on Base.

paid API x402
$0.08 · 30d 80 tx
riddlex402.vercel.app riddlex402.vercel.app
q 65

Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.

paid API x402
$0.22 · 30d 110 tx
weight402endpoint.vercel.app weight402endpoint.vercel.app
q 65

Convert a weight/mass value between units (kg, g, lb, oz, stone, tonne, and more).

paid API x402
$0.24 · 30d 96 tx
jokes-endpoint.vercel.app jokes-endpoint.vercel.app
q 65

Get a random interesting joke. Secured with x402 payment protocol on Base mainnet.

paid API x402
$0.16 · 30d 80 tx