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?
pubmed.sekgen.xyz
Biomedical research publication trends from PubMed — year-by-year counts, growth analytics, and CAGR for any medical, clinical, or scientific topic
bitcoin.x420.dev
Buy custom USDC amount worth of BITCOIN tokens 0xc41338b5Aff79e763c91ef550D15e1Cf92D64b07
x402-recall-lookup-poc.theliminalguy.workers.dev
Product recall safety verdict — recalled (with details) or no recalls found, from live CPSC + openFDA data
gifu-server.onrender.com
AI-generated random GIF or image search with creative prompts
api.pixo.tools
Extract structured JSON from a PDF using a caller-supplied schema, via Google Gemini — priced per page (sends content to a third party)
deploid-enrichment.peter-liang-official.workers.dev
B2B work-email enrichment. Asynchronous job, usually 30-90 seconds. 0.15 USDC only for a DELIVERABLE work email; no match is not charged.
scan.convrgent.ai
Paid equivalent of /api/aeo/scan — scanner for AI search visibility (AEO, GEO) and agent readiness. Triple score + AI Identity Card + top issues covering JSON-LD Schema.org, meta tags, llms.txt, robots.txt, sitemap, and agent-discovery sign…
x402.mode.network
Mode-x402 is a complete library of signals and indicators for intelligent trading agents
plush.fun
Create order for AI Plushie - Super Early Bird ($129) with promo code, eval, chr staker - Limited 1000 units
nwb-vending.com
LLM API Bootcamp agent pack v2: playbook + modules + templates (mf-train-001)
trusted-x402.compose.land
rollak.x420.dev
Buy custom USDC amount worth of ROLLAK tokens 0x287f28Ea9740D09cdff1ddd1faC4209fc40BdB07
sanctions-screening.xplowdiaka.workers.dev
Screen a person, company, or crypto wallet address against the OFAC SDN list and the UN Security Council Consolidated List in one call. Returns matches with source list, sanction programs, alias matched, and match type (exact/token/address)…
schemafetch.panmediatech.workers.dev
Structured web extract for AI agents: fetch any public URL, return schema-constrained JSON for SaaS pricing, contacts, team, product, FAQ, or task-shaped fields. Confidence scores and source snippets. No API key — pay-per-call x402 USDC on …
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'…
www.iris-ai.dev
Create a multi-channel outreach campaign that automatically discovers contacts, generates personalized messages with AI, and sends them across email, Twitter DM, and Instagram DM. One credit (~$2.25) covers contact discovery, message drafti…
mon.x420.dev
Buy 1 USDC worth of MON tokens 0x4DA4C8349bAe3f9986A56Dba62cDB583fA91cb07
receiptstamp.panmediatech.workers.dev
Signed proof-of-execution notary for AI agents: POST a payload, get hash + timestamp + signature receipt verifiable via /pubkey. Independent attestation for agent jobs and tool outputs. Pay-per-stamp x402 USDC on Base. Not custody, escrow, …
cron.0000402.xyz
Pay $0.10 USDC to schedule a one-shot webhook delivery. Provide a URL and a delay in seconds — the server fires a signed POST to your URL when the timer expires. Automatic retries on failure (up to 3 attempts). Network: Base Mainnet. Each r…
api.creatorfinder.dev
CreatorFinder finds creator profiles by segment. Create a free creator search, then pay to retrieve accepted creator emails, social profiles, and timestamps.
ipfs.c402.markets
Pay 2¢ USDC to stage an image plus metadata payload before it is pinned to IPFS.
x402-wallet-analyzer.dylan-caponi.workers.dev
AI-powered wallet analysis with portfolio summary and risk flags
frogs.x420.dev
Buy 1 USDC worth of FROGS tokens 0xbdB03E709EC61316D5Df8D7a6BBF203572E6cB07
agentsonly.vip
app-443.hdgregory.com
Analyzes a single AI agent tool call and returns a structured reliability report. Detects failure modes including sycophantic gap-filling, context degradation, hallucination, repetition loops, confidence collapse, and schema violations, wit…
x402-trading.useotto.xyz
Search supported ERC-20 tokens by symbol or address across 6 chains (Base, Ethereum, Arbitrum, Polygon, BSC, Avalanche). 5000+ tokens from CoinGecko.
trust-agent.onrender.com
api.syndicatelinks.co
Generate an affiliate tracking link — pay $0.01 USDC per link
api.writer.place
Create a Writer Place: a smart-contract-backed onchain data store for durable public or encrypted writing, notes, and agent data. The x402 payer becomes the admin and sole manager.
dev.x420.dev
Buy custom USDC amount worth of DEV tokens 0x64a3fc16f47d5c39D526eF40adEcc8C050751b07
punksinapunk.0000402.xyz
Pay $10.00 USDC to mint a PunksinaPunk NFT for a subject address. The API verifies the x402 payment, checks that the subject has not already been minted, then calls mint() on the ERC-721 contract on your behalf. One NFT per subject address …
forecast.0000402.xyz
Pay $0.10 USDC to generate a probabilistic crypto price forecast. Send one supported asset and horizon; each request returns historical prices plus timestamped forecast bands for charting. Network: Base Mainnet.
buoy-snapshot.buoycast.workers.dev
Find the nearest active NOAA buoy stations to a coordinate and return their current readings
roger-tomfoolish-liam.ngrok-free.dev
x402-protected paid API on roger-tomfoolish-liam.ngrok-free.dev (discovered via Coinbase facilitator).
x402-observability-poc.theliminalguy.workers.dev
Computed session trace summary (calls, tokens, cost, error count, slowest call)
x402.blocknotify.com
Get real-time token price, market cap and more. Pass an EVM chain plus ERC-20 contract address; returns current price (USD or any quote currency), 24h/7d/30d percentage changes, market cap, fully diluted valuation, 24h volume, all-time high…