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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 1657–1692 of 4,738
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.
Project-Zero-Agent-Api project-zero-agent-api.jordy-prods.workers.dev
q 70

Preflight untrusted text for common prompt-injection, credential-exfiltration, and tool-abuse patterns. Deterministic heuristic scan; not a guarantee of safety.

paid API x402
$0.00 · 30d 2 tx
Nanoapi nanoapi.org
q 70

Compress images to reduce file size with configurable quality. A photo compressed to quality 30 is typically 90-95% smaller with acceptable visual quality. Useful for reducing storage costs, optimizing web page load times, preparing image u…

paid API x402
Preflight-Agent preflight-agent.netlify.app
q 70

Read-only Solana financial-action firewall: decode and simulate an unsigned transaction, bind observed effects to declared intent and policy, and return a signed PASS/FAIL/REVIEW receipt

paid API x402
from $0.02
Api api.finnputerdex.com
q 70

FINNPUTER quick token check (contract, holders, market)

paid API x402
$0.02 · 30d 1 tx
Survivor-X402-Production survivor-x402-production.up.railway.app
q 70

Solana token risk screen with signed proof. Returns score 0-100, risk level, ALLOW/CHALLENGE/DENY gate decision, structured warnings, and an ed25519-signed receipt binding the payment settlement and result hash - independently verifiable at…

paid API x402
from $0.01
Stable-Enrich-Ecdu27Dk1-Merit-Systems stable-enrich-ecdu27dk1-merit-systems.vercel.app
q 70

Exa Search - Neural search across the web

paid API x402
$1338.07 · 30d 53,028 tx
Stable-Enrich-Git-Payai-Solana-Facilitator-Merit-Systems stable-enrich-git-payai-solana-facilitator-merit-systems.vercel.app
q 70

Exa Search - Neural search across the web

paid API x402
$1338.07 · 30d 53,028 tx
Solana-App-Production solana-app-production.up.railway.app
q 70

Solana token analytics: price, liquidity, volume, risk, organic score

paid API x402
from $0.0010
Stable-Enrich-Anncfzk3U-Merit-Systems stable-enrich-anncfzk3u-merit-systems.vercel.app
q 70

Exa Search - Neural search across the web

paid API x402
$1338.07 · 30d 53,028 tx
Penniless-Json-Repair penniless-json-repair.sjaman.workers.dev
q 70

Repairs malformed LLM JSON: strips Markdown fences and prose wrappers, fixes trailing commas, converts Python literals (True/False/None) and single/unquoted keys, removes comments, recovers balanced JSON from truncated output. Body {input} …

paid API x402
$0.10 · 30d 4 tx
Payai payai.43-135-4-66.sslip.io
q 70

Financial author track record / 财经作者历史成绩. Look up resolved stock-market claims, sample size, hit rate, Wilson confidence interval, direction breakdown, coverage and freshness for an X/Twitter finance creator. Useful for creator credibility …

paid API x402
$1.66 · 30d 17 tx
Metaclean-Production metaclean-production.up.railway.app
q 70

Buscar secretos y credenciales expuestas en hasta 10 textos o fragmentos de código, antes de compartirlos: claves de AWS/GitHub/Slack/Stripe/OpenAI/Anthropic/Google/SendGrid/npm, claves privadas PEM, cadenas de conexión con contraseña y JWT…

paid API x402
$0.04 · 30d 3 tx
X402-Hash-Api x402-hash-api.vercel.app
q 70

SHA-256 hash — compute a SHA-256 hex digest of a text string (sha256 hash / cryptographic hash).

paid API x402
$5.33 · 30d 13 tx
Safeconduct safeconduct.vercel.app
q 70

x402-protected paid API on safeconduct.vercel.app (discovered via Coinbase facilitator).

paid API x402
$0.06 · 30d 12 tx
Freepik freepik.x402.paysponge.com
q 70

Service: Freepik (https://freepik.x402.paysponge.com/v1/sound-effects)

paid API x402
$4.82 · 30d 271 tx
Bookproof-Api bookproof-api.sn95wjq846.chatgpt.site
q 70

Read-only Polymarket market health: resolves a full Polymarket URL, slug, token ID, or search phrase, then returns spread, 1/2/5 cent depth, imbalance, fee schedule, and book freshness.

paid API x402
from $0.0050
Ai-Utility-Farm ai-utility-farm.brycedees1.chatgpt.site
q 70

Run fast HTML accessibility heuristics for language, title, headings, images, links, buttons, and form controls.

paid API x402
$0.03 · 30d 2 tx
Hl-Tracker hl-tracker.829686.workers.dev
q 70

Hyperliquid wallet analysis: liquidation price, distance to liquidation, margin, leverage, unrealized PnL, equity buffer and risk for every open perpetual position.

paid API x402
$0.04 · 30d 4 tx
Outbid outbid.sh
q 70

Pay USDC to add that amount to a URL's rank on the public board. Rank is the bid. The amount you pay is the amount credited.

paid API x402
from $0.10
Ohd-Machine-X402-V2 ohd-machine-x402-v2.hibiki3027.workers.dev
q 70

Low-friction one-page preflight for agents: HTTP/SEO/security evidence with BUY/REVIEW/SKIP verdict before deeper due diligence.

paid API x402
$0.68 · 30d 15 tx
Agent-Evidence-Api agent-evidence-api.thx93.workers.dev
q 70

Verify a claim against public web sources: send a question and up to 5 URLs, get cited evidence - passages that support, contradict or fail to settle it. Claim verification with a citation for every excerpt: source URL, retrieval time, cont…

paid API x402
$0.07 · 30d 4 tx
Throne throne.mrsupplychain.ai
q 70

Agent Throne: take the #1 spot for AI agents. Pay the current price (GET /throne) to become Sovereign; every reign is an on-chain USDC transfer with a signed Proof of Reign. Register first (POST /agents), create a frozen intent (POST /chall…

paid API x402
$3.02 · 30d 4 tx
49112-Hjhjtioxvirqvcvo 49112-hjhjtioxvirqvcvo.splox.app
q 70

DNS lookup: A/AAAA/MX/TXT/NS/CNAME/SOA/CAA, SPF and DMARC presence

paid API x402
$7.18 · 30d 302 tx
49110-A2Faebhnaj4Vebqe 49110-a2faebhnaj4vebqe.splox.app
q 70

Pre-payment trust check of a paid API endpoint: reachability, 402 handshake, registrable-domain age (RDAP), TLS days left, seller USDC balance and ETH gas runway on Base -> trust_score 0-100 + verdict pay|caution|avoid

paid API x402
$7.18 · 30d 302 tx
Capi2-Foundry capi2-foundry.vandurmedries.workers.dev
q 70

Audit a supplied OpenAPI contract and return prioritized integration fixes.

paid API x402
$0.01 · 30d 1 tx
Api api.aifoundry.sh
q 70

Current weather for any place on earth. Give a city name or a latitude/longitude pair; get temperature, conditions, wind and humidity.

paid API x402
$0.71 · 30d 8 tx
Csv-To-Xlsx-X402 csv-to-xlsx-x402.onrender.com
q 70

Convert messy CSV/TSV to a clean styled XLSX plus a checks report (base64)

paid API x402
$19.63 · 30d 3 tx
Lupaplaza lupaplaza.com
q 70

LupaPlaza accepts probe — documents Exact+Base live accept-selection policy (no second rail), paid per call.

paid API x402
$0.36 · 30d 26 tx
Weather-Production-18Af weather-production-18af.up.railway.app
q 70

Current weather for a city (or lat/lon): temperature, feels-like, humidity, wind, precipitation and conditions. JSON.

paid API x402
$0.03 · 30d 30 tx
Solara-X402 solara-x402.onrender.com
q 70

x402-protected paid API on solara-x402.onrender.com (discovered via Coinbase facilitator).

paid API x402
$0.03 · 30d 2 tx
Txwhy txwhy.vercel.app
q 70

Repair a failing Solana transaction: exact cause, rebuilt unsigned transaction, simulation proof, verification.

paid API x402
from $0.0010
Canonsheet canonsheet.kaneky.dev
q 70

Build a consistent prompt set for one human character: a canonical image prompt with every appearance fact labelled, negative prompts that stop traits like glasses or a cane from vanishing, a video prompt, and optionally a contact sheet tha…

paid API x402
from $0.02
Imagemeta imagemeta.kaneky.dev
q 70

Write SEO metadata into a JPEG, PNG or WebP image and return the modified image. The picture is never re-encoded and existing metadata of the same kind is replaced, not duplicated. Paid per successful call over x402: the first attempt answe…

paid API x402
from $0.03
Proofwork-Codex-0902 proofwork-codex-0902.ophl.link
q 70

Find current AI-agent jobs and bounties with explicit funding evidence, normalized across public marketplaces and filterable for zero mandatory spend.

paid API x402
$1.01 · 30d 8 tx
Deltamachine-V2-Preview deltamachine-v2-preview.vercel.app
q 70

DeltaMachine paid opportunity-intelligence signal feed

paid API x402
$0.50 · 30d 1 tx
Www www.fomoscan.dev
q 70

Newest-first global feed of FOMO theses (short trade write-ups: token, author, PnL, holdings). Use only when you have no token or author filter. Page with ?before= from nextBefore; stop when hasMore is false. Dedupe items on id. Prefer the …

paid API x402
from $0.01