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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 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 3925–3960 of 4,697
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.
x402-portfolio.x402iom.workers.dev x402-portfolio.x402iom.workers.dev
q 44

Fetch a web page and return structured content: title, meta/OpenGraph, canonical, headings, links, readable text (boilerplate stripped).

paid API x402
$0.05 · 30d 11 tx
axol-x402-worker.axol.workers.dev axol-x402-worker.axol.workers.dev
q 44

Returns a simple JSON weather report for the demo region.

paid API x402
from $0.01
error404.life error404.life
q 44
paid API x402
from $0.01
bitcoin.x420.dev bitcoin.x420.dev
q 44

Buy custom USDC amount worth of BITCOIN tokens 0xc41338b5Aff79e763c91ef550D15e1Cf92D64b07

paid API x402
from $5.00
pong.x420.dev pong.x420.dev
q 44

Buy 1 USDC worth of pong tokens 0x2C2c86E4796fB22ca7169f7cdB4d3a2F9eB08B07

paid API x402
from $1.00
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
api.iris-ai.dev api.iris-ai.dev
q 44

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…

paid API x402
from $2.25
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
cron-service.replit.app cron-service.replit.app
q 44

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

paid API x402
from $0.0010
stamp.0000402.xyz stamp.0000402.xyz
q 44

Pay $0.01 USDC to create an immutable timestamped statement. The server assigns recorded_at in UTC. Statements are public, permanent, and cannot be edited. Max body size: 10 KB. Network: Base Mainnet. Each request records one statement and …

paid API x402
$6.30 · 30d 163 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
punksinapunk.0000402.xyz punksinapunk.0000402.xyz
q 44

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 …

paid API x402
$6.30 · 30d 163 tx
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
ccs-seller.bbrysonelite.workers.dev ccs-seller.bbrysonelite.workers.dev
q 44
paid API x402
$0.35 · 30d 22 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
fetchweb.net fetchweb.net
q 44

FetchWeb provides pay-per-call web metadata for AI agents. Use FetchWeb to quickly inspect a URL — title, description, canonical URL, language and estimated token size — before performing web extraction, web research or LLM processing, so a…

paid API x402
from $0.0010
api.mnemospark.ai api.mnemospark.ai
q 44

mnemospark-lite paid file upload API for wallet-scoped storage. Returns a presigned S3 upload URL, completion token, and bearer for listing and downloading uploaded files. Files expire automatically after 30 days.

paid API x402
from $0.01
www.xquant-api.xyz www.xquant-api.xyz
q 44

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

paid API x402
from $1.00
nad.payflowagent.net nad.payflowagent.net
q 44

Cheap entry: graduation % + momentum for one token. Free probes: GET /v1/screen/sample or GET /v1/lite?token=0x…

paid API x402
$1.07 · 30d 1 tx
x105.x420.dev x105.x420.dev
q 44

Buy custom USDC amount worth of x105 tokens 0x51793E001bc1f58E5da3680bD1102EEE0b713B07

paid API x402
from $5.00
agentsonly.vip agentsonly.vip
q 44
paid API x402
from $1.00
intent402.dylan-caponi.workers.dev intent402.dylan-caponi.workers.dev
q 44

Check if a token approval is needed and return the approval transaction if so.

paid API x402
$0.06 · 30d 15 tx
providersignal.com providersignal.com
q 44

Filtered provider list with pagination. Filter on state, county, ZIP, specialty, DSO/Independent, license status, Medicaid state-roster enrollment.

paid API x402
$0.50 · 30d 1 tx
x402.blocknotify.com x402.blocknotify.com
q 44

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…

paid API x402
from $0.0011
munch.x420.dev munch.x420.dev
q 44

Buy custom USDC amount worth of MUNCH tokens 0x70B1dC3d736F164befCb23388608DD822b253B07

paid API x402
from $5.00
snowsignals-x402.snowsignals.workers.dev snowsignals-x402.snowsignals.workers.dev
q 44

SnowSignals phase boundary — pay-per-row market-phase reading

paid API x402
$0.96 · 30d 50 tx
verdikt-worker.fly.dev verdikt-worker.fly.dev
q 44

Verdikt renders an evidence-anchored verdict over an agent deliverable across five routes (code, tool_output, answer, execution, tool_trace) and never false-certifies.

paid API x402
from $0.05
travelcheck-x402.fly.dev travelcheck-x402.fly.dev
q 44
paid API x402
from $0.01
tokensqueezer-production.up.railway.app tokensqueezer-production.up.railway.app
q 44

High-throughput text optimizer for agent data streams. Strips filler, collapses JSON, and densifies repetitive prose to cut upstream LLM token spend.

paid API x402
$0.35 · 30d 160 tx
scoop-api-production.up.railway.app scoop-api-production.up.railway.app
q 44

Find verified work and/or personal emails for a LinkedIn profile across multiple data providers (Aleads, Apollo, Nymeria, ContactOut). Optional Hunter.io verification. Returns in <5s.

paid API x402
$1.00 · 30d 4 tx
projectx402-production.up.railway.app projectx402-production.up.railway.app
q 44

Validate JSON against a JSON Schema. Checks LLM and agent output and API request payloads, returning structured errors with error codes, JSONPath locations, and a plain-English summary. Optional automatic repair of invalid payloads.

paid API x402
$0.02 · 30d 3 tx
vectorcache-production.up.railway.app vectorcache-production.up.railway.app
q 44

High-speed semantic vector cache for multi-agent swarms. Redis-backed similarity lookup with in-memory fallback before expensive embedding pipelines.

paid API x402
$0.35 · 30d 160 tx
401-chi.vercel.app 401-chi.vercel.app
q 44

Verify whether a named API symbol is publicly exported by an exact npm package version. Returns structured existence, export kind, certainty, and package-artifact evidence.

paid API x402
from $0.0030
stable-enrich-git-shafu-fullenrich-search-pricing-merit-systems.vercel.app stable-enrich-git-shafu-fullenrich-search-pricing-merit-systems.vercel.app
q 44

FullEnrich People Search — filter by company domain/name/LinkedIn URL, seniority, title, location, skills, and 20+ FullEnrich filters. Default lean roster: companies map + company_id refs; include_employment_history or verbose for full hist…

paid API x402
$1338.07 · 30d 53,028 tx
agent-id-x402-production.up.railway.app agent-id-x402-production.up.railway.app
q 44

Pay once, get a unique non-transferable agent identity tag: an issuer-signed credential binding your Ed25519 auth key to your paying wallet. Anti-Sybil proof of being a distinct, previously registered, paying agent. Unpaid 402 returns full …

paid API x402
$103.04 · 30d 5 tx
project-formatter-production.up.railway.app project-formatter-production.up.railway.app
q 44

Convert and transform data between formats: CSV to JSON, XML to JSON, and Markdown to HTML. Parse and reshape tabular and structured data. Optional self-validation pass returns structural errors. Built for data and agent pipelines.

paid API x402
$0.02 · 30d 3 tx