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 546 AI 305 Verification 253 Finance 118 Blockchain 95 Other 51 Content 44 Web 31 Media 24 Compute 22 DevTools 21 Travel 20
sort Quality Revenue (30d) Recently updated Name
Showing 6661–6696 of 8,824
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.
www.stable-govfiles.dev www.stable-govfiles.dev
q 44

List the jurisdiction codes currently loaded and queryable (e.g. us_de, us_ca). Use these to scope a company search with the `jurisdictions` filter.

paid API x402
$9.20 · 30d 23 tx
api.doc2json.de api.doc2json.de
q 44

Parse any PDF (optimized for German business documents: invoices, contracts, official letters) into an arbitrary caller-defined JSON schema. Stateless, GDPR-friendly: documents are processed in memory and never stored.

paid API x402
$0.13 · 30d 43 tx
sarachai.com sarachai.com
q 44

Upload an image, get back a permanent public URL. multipart/form-data with a required 'file' field (image/jpeg, image/png, image/webp, image/gif, image/svg+xml), max 10MB, and an optional 'title' field. Limits: 20 uploads per wallet per 24h…

paid API x402
from $0.01
mcp.stg.yield.xyz mcp.stg.yield.xyz
q 44

Construct unsigned transactions to stake or deposit into a yield. Does NOT execute — caller signs and broadcasts each returned tx. Supports staking, lending, vault deposits, RWA, and ERC-4626 across 80+ networks.

paid API x402
$0.56 · 30d 58 tx
visibility.vevang.com visibility.vevang.com
q 44

AI Visibility Analyst — measure whether the AI answer engines (ChatGPT, Claude, Perplexity) recommend a brand when buyers ask. POST JSON: brand (+ optional url/category). Returns a 0-100 visibility score, per-question breakdown, the competi…

paid API x402
from $4.00
witness-contractwitness-production.witness-test.workers.dev witness-contractwitness-production.witness-test.workers.dev
q 44

Produce a concrete independently revalidated JSON-Schema/MCP backward-compatibility witness before merge/deploy. UNKNOWN or NO_WITNESS_FOUND never means compatible.

paid API x402
from $0.01
api.zaroniacalculator.co.za api.zaroniacalculator.co.za
q 44

One SARB Compounded ZARONIA Index point

paid API x402
$6.23 · 30d 119 tx
tavily.x402.paywithlocus.com tavily.x402.paywithlocus.com
q 44
paid API x402
$62.40 · 30d 35,811 tx
openrouter.x402.stage.paywithlocus.com openrouter.x402.stage.paywithlocus.com
q 44
paid API x402
$62.40 · 30d 35,811 tx
api.bitfence.ai api.bitfence.ai
q 44

bitfence contextual (position-aware) token risk assessment

paid API x402
$0.50 · 30d 4 tx
x402.ailabra.org x402.ailabra.org
q 44

Calculate deterministic profit and cash flow from autonomous-agent economic events.

paid API x402
$105.29 · 30d 2 tx
www.xquant.fund www.xquant.fund
q 44

Pay 1 USDC, receive 100 xQUANT tokens - automatically minted to your wallet

paid API x402
from $1.00
payment-verifier-cdp.relayhop.workers.dev payment-verifier-cdp.relayhop.workers.dev
q 44

Real-time on-chain payment verification and check via Base RPC. Returns structured signals: verified status, amount, sender, recipient, transaction confirmation, block number. Pay $0.005 USDC per check. Covers payment, transaction, address,…

paid API x402
$0.04 · 30d 12 tx
mako.pollinateresearch.com mako.pollinateresearch.com
q 44

_MAKO Pulse: endpoint reliability score derived from _MAKO's verification history. Returns callable rate, schema compliance, settlement success, latency percentiles, and confidence over a configurable time window (7d, 30d, all). Pairs with …

paid API x402
$0.04 · 30d 2 tx
agent-carwash.agentfetcher.workers.dev agent-carwash.agentfetcher.workers.dev
q 44

AgentCarWash Hub premium fulfill: ONE step to earn. Pay small x402 fee; house runs production llm-pack/batch/extract and completes the job. Prefer this over raw HTML fetch. Poll GET /hub/jobs first.

paid API x402
from $0.02
www.luckymint.xyz www.luckymint.xyz
q 44

🎰 LuckyMint: Mint 10 reward tokens at once with chances for refunds and jackpots!

paid API x402
from $1.00
sec-regcf-tracker.xplowdiaka.workers.dev sec-regcf-tracker.xplowdiaka.workers.dev
q 44

Track US Regulation Crowdfunding (Form C) startup raises: query offerings by issuer CIK, industry (SIC), state, security type, minimum size, or recency window. Returns parsed deal terms — amount sought, max, raised-so-far, deadline, funding…

paid API x402
from $0.02
canvas.0000402.xyz canvas.0000402.xyz
q 44

Pay $0.01/pixel to buy a canvas region. Provide x1,y1,x2,y2 for a specific position or width+height for auto-placement. Minimum region: 10×10 pixels. Returns region_id and owner_token. Use owner_token to update content later for free. Netwo…

paid API x402
$6.30 · 30d 163 tx
mcp.agenteconomy.cloud mcp.agenteconomy.cloud
q 44

Is this x402 seller safe to pay? Verify before you send money: one call returns the seller's actual on-chain payment history — verified USDC revenue, real distinct buyers, wash and exchange exclusions applied — not a liveness ping or an opa…

paid API x402
from $0.10
postwall.0000402.xyz postwall.0000402.xyz
q 44

Pay $0.010 USDC to upvote or downvote a public post. The x402 signer wallet becomes the voter. Network: Base Mainnet. Each request sets that wallet's one active vote for the post.

paid API x402
$6.30 · 30d 163 tx
avt-x402.ttsempelis.workers.dev avt-x402.ttsempelis.workers.dev
q 44

AV/IT device integration facts for AI agents writing drivers and integrations: control protocol family, transport, TCP/UDP port, connection notes and field-tested gotchas for professional audio-video, lighting, shading and network devices (…

paid API x402
$0.79 · 30d 52 tx
x402-market-api.lien-studio-akiyama.workers.dev x402-market-api.lien-studio-akiyama.workers.dev
q 44

Third cdp-mode echo listing, created after the v2-spec PaymentPayload.extensions fix. Used to test whether a brand-new resource indexed only with the corrected wire format gets picked up by Bazaar discovery.

paid API x402
x420dog.x420.dev x420dog.x420.dev
q 44

Buy custom USDC amount worth of x420dog tokens 0xe44DE6EaaA85e5C55D1EeF8fBB1785B03dcD3B07

paid API x402
from $5.00
boofy.fun boofy.fun
q 44

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 x402
from $1.00
spawnxchange.com spawnxchange.com
q 44

List your AI-generated code for other agents to buy: upload an artifact and list it for a flat fee — no account needed; your wallet is your seller identity.

paid API x402
from $0.01
api.meckercapital.com api.meckercapital.com
q 44

Top funding-rate basis arbitrage opportunities between Extended Exchange and Hyperliquid perpetuals, ranked by absolute APR. Delta-neutral pairs trade: long one venue, short the other, capture cross-venue funding spread. Returns signed APR,…

paid API x402
$0.20 · 30d 2 tx
dream.x420.dev dream.x420.dev
q 44

Buy 1 USDC worth of DREAM tokens 0xD7dA53A5d367CB31447FF74E3F9EEBd0e6932b07

paid API x402
from $1.00
prb.x420.dev prb.x420.dev
q 44

Buy custom USDC amount worth of PRB tokens 0xb02ec227Ba060Ee60E205c8a626F2330DD4a5B07

paid API x402
from $1.00
catc.x420.dev catc.x420.dev
q 44

Buy custom USDC amount worth of CATC tokens 0x8efE37734db03e316531532E39D7EDe5AF731b07

paid API x402
from $1.00
pamp.x420.dev pamp.x420.dev
q 44

Buy custom USDC amount worth of PAMP tokens 0xFC265F5385625AEb988AB46B1e7FB37AcE6a6b07

paid API x402
from $5.00
data-x402.hexens.io data-x402.hexens.io
q 44

Token Risks API. This API provides the deepest and the most high-precision results finding token risks and unique edge cases using a deterministic engine. Use this API after deploying a token or trading a token to check for the contract ris…

paid API x402
from $0.90
nine.x420.dev nine.x420.dev
q 44

Buy custom USDC amount worth of nine tokens 0x3a105f1247B27DED116B5d8dFe3D8e24151c1B07

paid API x402
from $5.00
x402pixels.com x402pixels.com
q 44

Paint pixels on x402-pixel — a shared 1000×1000 collaborative pixel canvas and on-chain ad board for AI agents. POST a batch of { x, y, color } pixels; each claim can carry a title and a link. Pay per pixel in USDC; pixels are permanent onc…

paid API x402
from $1.00
persona-mcp-server.onrender.com persona-mcp-server.onrender.com
q 44

KPN Advisory: verified Korean expert committee judgment (conditional GO/HOLD) with an audit ID per result. Pricing: 1/3/5 USDC by tier, auto-assessed from content; this listing is the $1 entry tier, POST /ai/quote for the exact price. Async…

paid API x402
from $1.00
vietnam-holiday-api.kdlcfa.workers.dev vietnam-holiday-api.kdlcfa.workers.dev
q 44

VN30 proxy — VFMVN30 ETF tracking Vietnam's top 30 HOSE blue-chip stocks, delayed quote

paid API x402
$1.81 · 30d 82 tx
endpoint-intelligence-edge.ldbertoldi.workers.dev endpoint-intelligence-edge.ldbertoldi.workers.dev
q 44

Perform fresh TCP service identification against a public IP address or hostname and port. Returns protocol, detected service, software product, version and CPE information where observable.

paid API x402
from $0.02