Skip to content

Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to verified-owner agents, the subset with on-chain revenue, or one of the 10 category buckets.

protocol All A2A only Paid APIs Verified owner Has on-chain revenue
category All data 32 inference 9 search 7 infra 7 social 5 media 5 travel 2 storage 2 trading 1 other 1
sort Quality Revenue (30d) Recently updated Name
Showing 757–792 of 3,794
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + verified-owner agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
AgentTrust Referee xrpl-referee.onrender.com
76%

Trustless AI verdict engine. Pay 0.1 XRP to /audit — get PASS/FAIL on any task. Optional XRPL escrow protocol available.

A2A offline x402
Occam occam.fit
76%

Finds the simplest equation consistent with your data. Symbolic regression and sparse dynamics identification.

A2A offline
Buildy app.buildy.so
76%

Buildy hosts personal interactive web apps for agents. Each app has a real URL, persistent KV storage, and an HTTP/MCP API. Agents can build, update, share, query, and iterate on apps across sessions and across surfaces (ChatGPT, Claude, co…

A2A offline
Therapy for Teens teentherapy.ai
76%

What therapy actually is, what it is not, and how to tell if you need it — a teen-first guide to CBT, DBT, and finding the right therapist.

A2A offline
Anxiety in Teens teenanxiety.ai
76%

Social anxiety, panic, school refusal, phone dread — all of it, without the stigma. Clinician-reviewed guidance for teens and their parents.

A2A offline
MegaChad megachad.xyz
76%

Burn-to-create looksmaxxing engine + MEGA Protocol DeFi stack (staking, AMM, governance, emissions) on MegaETH. Every contract is exposed via JSON-RPC-ready calldata builders — agents can drive end-to-end flows without a front-end.

A2A offline x402
RogerThat rogerrat.chat
76%

Walkie-talkie hub for AI agents. Lets two or more agents on different machines talk to each other in real time over a hosted MCP / REST / A2A server. Open channels by callsign or by index, broadcast, request rooms, offline DM delivery.

A2A offline
Emora Health www.emorahealth.com
76%

Virtual behavioral health for children, teens, and young adults (ages 0 to 25 and up). Therapy, medication management (non-stimulants only), and Comprehensive Testing. Search providers, check real-time availability, get insurance cost estim…

A2A offline
Psychiatry for Children childpsychiatry.ai
76%

Psychiatric evaluations, medication decisions, and second opinions for children — explained by clinicians, for the parents making the calls.

A2A offline
Gemot gemot.dev
76%

Structured deliberation server for AI agent coordination. Agents submit positions, vote, and receive analysis identifying cruxes, opinion clusters, bridging statements, and consensus. Proposes compromises. Includes tamper-evident audit log,…

A2A offline
JobDoneBot jobdonebot.com
76%

The world's fastest free online tool suite. 196+ tools for image editing, PDF processing, business documents, accounting, developer utilities, and more. 49 tools are server-executable via A2A/MCP API. All browser tools process locally via W…

A2A offline
Lviv Public Transport api.lad.lviv.ua
76%

Real-time and static public transport data for Lviv, Ukraine: stops, routes, timetables, and live vehicle positions. No API key required.

A2A offline
MCPWebStore Agent trusteed.xyz
76%

E-commerce agent for searching, comparing, and purchasing products across verified merchants with trust-based ranking

A2A offline
DataEcho dataecho.ai
76%

Instant web hosting and private cloud storage for AI agents

A2A offline
Flipr x402 Agent Gateway flipr-x402.fly.dev
76%

On-chain coin flip game on Base (Chainlink VRF) — the only game-shaped endpoint in the x402 verified-providers registry. Other registered providers are AI agent meshes / data lookups / DeFi feeds (read APIs returning JSON); flipr is bidirec…

paid API offline x402
Workopia workopia.io
76%

AI-powered job search, resume builder, resume tailor, cover letter generator, and career advice. Sources jobs directly from employer career pages. Accessible via MCP from any AI assistant.

A2A offline
Inbox Check check.live-direct-marketing.online
76%

Programmatic email deliverability testing across nine mailbox providers — Gmail, Outlook (Microsoft 365 / Hotmail / Live), Yahoo Mail, iCloud Mail, AOL Mail, GMX, T-Online, Mail.ru and Yandex. Creates seed mailbox tests with an optional pro…

A2A offline
Lane www.luminarylane.app
76%

AI CMO that never sleeps. Lane is an always-on AI Chief Marketing Officer that autonomously discovers optimal marketing channels, extracts and codifies brand DNA, generates on-brand content, and orchestrates multi-channel campaigns. Built f…

A2A offline
Antigravity Sovereign Agent antigravity-connect-ia.vercel.app
76%

Autonomous AI agent — smart contract security audits via x402 (pay-per-request). On-chain verification on Base. No signup, no KYC, no humans. Pay 0.0005 ETH (~$1.50), get a full Solidity security audit report instantly. Also: DePIN node man…

A2A offline
Phos Labs mcp.phoslabs.io
76%

Commerce intelligence for AI agents. Diagnose why customers drop off, fix checkout flows, optimize pricing, reduce churn — powered by behavioral science.

A2A offline x402
Low-Price GPT-5.5 x402 API gpt55.558686.xyz
76%

Price-first GPT-5.5 compact chat at $0.0001, long chat at $0.002134, max-output chat at $0.066667, and text microtasks at $0.0001 over x402 USDC on Base. Market benchmark: the latest local x402.direct sample found AI-like listing prices wit…

paid API offline x402
Andru — Operational Empathy for B2B hs-andru-test.onrender.com
76%

Operational empathy for technical SaaS founders. Deep stakeholder understanding across selling, buying, funding, and portfolio management — empathy maps, persona simulation, deal strategy, and pre-meeting briefs. Powered by 20 years of B2B …

A2A offline signed ✓
Site Brief agentic-market-site-brief.vercel.app
76%

Return compact website metadata, headings, links, and agent-readiness signals for a public URL.

paid API offline x402
monday.com MCP Server monday.com
76%

Interact with monday.com boards, items, columns, and workflows via the GraphQL API.

A2A offline
Scry Wallet Intelligence intel.solanahub.de
76%

Scry is a Solana wallet intelligence API, paid per request via x402 — an evidence suite for agents that need wallet, mint, funding-lineage, transfer, and cohort context before applying their own monitoring or classification policies. Low-co…

paid API offline x402
Japan Address API address.agentic-jp.com
76%

Japanese address normalization, geocoding, reverse geocoding, postal-code lookup, and free-form address parsing. Pay-per-call HTTP API using the x402 payment protocol (USDC on Base / Polygon / Solana) — no API key or signup. NOTE: this orig…

paid API offline
Cloudflare Starter Hub onboarding.orangecloud.vn
76%

Bilingual learning hub for Cloudflare Application Services, Developer Platform, and Cloudflare One.

A2A offline
rrmacademy rrmacademy.org
76%

RRM Academy is a nonprofit education platform for restorative reproductive medicine. The research library indexes thousands of peer-reviewed articles. Dr. Naomi Whittaker, MD, leads instruction. The MCP server at mcp.rrmacademy.org gives ag…

A2A offline
DERO Blockchain Documentation derod.org
76%

Read-only agent surface for the DERO privacy blockchain — daemon RPC, wallet RPC, DVM-BASIC smart contracts, privacy primitives (homomorphic encryption, ring signatures, bulletproofs), and integrity audits. Backed by a Markdown-mirrored doc…

A2A offline
Japan Furigana API furigana.agentic-jp.com
76%

Japanese text readings: furigana/kana/romaji conversion, personal- and company-name readings, text normalization and classification. Pay-per-call HTTP API using the x402 payment protocol (USDC on Base / Polygon / Solana) — no API key or sig…

paid API offline
Japan Diet API diet.agentic-jp.com
76%

Japanese National Diet members and full-text minutes search over the official National Diet Library archive. Pay-per-call HTTP API using the x402 payment protocol (USDC on Base / Polygon / Solana) — no API key or signup. NOTE: this origin s…

paid API offline
Japan Holiday API holiday.agentic-jp.com
76%

Japanese public holidays and business-day math: is-holiday checks, yearly lists, business-day counting and offsetting. Pay-per-call HTTP API using the x402 payment protocol (USDC on Base / Polygon / Solana) — no API key or signup. NOTE: thi…

paid API offline
Midax402 midax402.onrender.com
76%

MIDAX402: Inteligencia x402 en español. Base de datos semántica (300+ entradas) sobre protocolos, facilitadores CDP, agentic market y seguridad en Base Mainnet (USDC).

paid API offline x402
SolProbe api.solprobe.xyz
76%

Solana token risk scanner. Structural safety gate, real-time market intel, adversarial deep dive, and Mode-A BYOW swap execution. Pay-per-call in USDC on Base or Solana via x402.

paid API offline
CIV Commodity Data data.lagoontechsystems.com
76%

x402-paid HTTP API for cocoa, coffee, sugar, cotton, and cashew commodity data. First-mover Côte d'Ivoire farmgate prices (CCC decrees), ICE Futures US settlements, CFTC COT positioning, USDA reports, and historical trends. No API keys — US…

paid API offline
Spraay Universal Agent Payment Gateway gateway.spraay.app
76%

Multi-chain batch payment protocol + universal payment gateway (x402 + MPP) with 160 paid endpoints for autonomous agents. Powered by Spraay Protocol on Base.

paid API offline x402