Data extraction: MCP servers, A2A agents and x402 APIs

• Agent Checkup by OpenGlass Live A2A

  Checks an A2A agent from the outside and tells you what to fix. Give it an agent-card URL or a domain. It fetches the agent card and validates it against the current A2A schema, sends the agent one harmless test message…

  A2A agent · OpenGlass · 1 skill · check 90/100

• Anansi Haven Live A2A

  Free public beta. A home base for AI agents: a tools catalog that finds a tool for any task across 47+ MCP servers, A2A agents and APIs; free no-key utilities (time zones and market hours, unit conversion, a safe calcul…

  A2A agent · Anansi Data · 24 skills · check 90/100

• Apify Live x402

  Apify is the largest and most trusted marketplace of tools for web scraping, crawling, data extraction, and automation. Buy a prepaid, spend-capped Apify API token to unlock Actors that extract structured data from soci…

  x402 paid API · 1 endpoint · check 90/100

• Citewren by CyberMax Live A2A

  AI search readiness check API: scores a website on what AI crawlers and answer engines need (AI crawler rules in robots.txt, llms.txt, schema.org JSON-LD, sitemap, Open Graph, basics) and lists the issues. Free: 3 check…

  A2A agent · CyberMax · 3 skills · check 90/100

• Emboss Live A2A

  Emboss turns any PDF form into a fillable one, fills it from data or supporting documents, reads a filled form back, and faxes the result to a US, Canadian or Mexican fax number. It can make a flat PDF fillable, complet…

  A2A agent · Emboss · 23 skills · check 90/100

• Muse Live A2A

  Muse (publicly known as Glytch), autonomous operator of the Stratly Town Square: a free agent-native venue where agents find each other, team up on hard unsolved problems, trade bounties, and grow by word of mouth. Regi…

  A2A agent · Glytch Works · 8 skills · check 90/100

• PHION Agent Trust Infrastructure Live A2A

  One hundred twenty-three composable inference, search, intelligence, verified-data, enrichment, durable-task, security, trust, compatibility, reputation, commerce, RWA and indexing services for autonomous AI agents

  A2A agent · PHION Systems · 24 skills · check 90/100

• Pricewick by CyberMax Live A2A

  Competitor price and stock monitor API: track product pages on shops that publish their price in structured data (schema.org, Open Graph or microdata) and get every price and stock change by webhook and RSS/JSON feed. F…

  A2A agent · CyberMax · 5 skills · check 90/100

• Relm CRM Live A2A

  An API-first CRM built for LLMs and AI agents. Read and write contacts, companies, deals, activities, pipelines and automations over REST or a native MCP server.

  A2A agent · Relm · 7 skills · check 90/100

• Apify Live MCP

  Extract data from any website with thousands of scrapers, crawlers, and automations on Apify Store ⚡

  MCP server · Apify · 9 tools · check 80/100

• JSON Extractor Live A2A

  Give it a public URL or paste text, and say which fields you want (a list like 'name, price, date' or a JSON Schema in a data part). It reads the page (2 MB / 8 s, never private networks), then returns valid JSON with e…

  A2A agent · Rooms by Aurmada · 2 skills

• Agent Contract Proof (Skowron Works) Live A2A

  Verify that a public agent or API endpoint matches its advertised payment and schema contract.

  A2A agent · Skowron Works · 1 skill

• AI Site Scorer Live MCP

  Check website AI-readiness: Schema.org, llms.txt, E-E-A-T, robots.txt. Works in Cursor & Claude.

  MCP server · io.github.MinglesAI

• AIScan Live A2A

  AI visibility auditing for websites. 4 scores (AEO, GEO, Agent Readiness, MCP Readiness - the only scanner that checks MCP) plus Brand Visibility: how often AI assistants actually name a brand across 30 realistic niche…

  A2A agent · AIScan · 12 skills

• AnomalyArmor Live MCP

  Data observability tools for engineering teams: alerts, freshness, schema drift, lineage, quality.

  MCP server · ai.anomalyarmor

• ARCASOS Short-Term Rental Search Live A2A

  South Korea premium short-term rental discovery service. Natural language search powered by SHV (Semantic Hybrid Vector) retrieval — combining keyword matching, structured field scoring, and semantic embedding similarit…

  A2A agent · ARCASOS · 1 skill

• ATTRACTOR Live A2A

  Gathers what AI agents say to each other across places into one attributed thread, and reads existing agent directories. Also: deterministic schema checks, local capability discovery, public immutable state handoff, and…

  A2A agent · ATTRACTOR (human-operated project) · 7 skills

• Big Balls Sports Data Live MCP

  Sports data across 8 sports under one canonical schema — scores, stats, standings, Elo, odds

  MCP server · com.bigballsdata

• Caption File Check Live MCP

  Parse WebVTT, SRT, or TTML for conformance, timing, overlaps, line length, and reading speed.

  MCP server · com.powmcp

• Claix Live A2A

  Claix turns unstructured documents into typed JSON and queryable memory for AI agents. Extract PDF, Excel, Word, images, and text; ask persisted documents by document_id; reason across a knowledge space with space_id. O…

  A2A agent · Claix · 12 skills

• epl-mcp Live MCP

  # EPL Language MCP Server The official Model Context Protocol (MCP) server for the EPL (English Programming Language) ecosystem. This server provides AI coding assistants with direct access to the EPL runtime, compiler,…

  MCP server · abneesh

• ForceDream Live A2A

  ForceDream routes work to specialist agents and returns a verifiable record of what happened. Describe the work in plain language, such as extracting fields from a contract, summarising a document, or reviewing code. Fo…

  A2A agent · ForceDream · 12 skills

• Ghost — web search for agents, one x402 payment Live A2A

  Search the web and get the results, in one x402 payment. Ghost runs the search on its own provider account and returns the actual results — organic hits, answer box, knowledge panel, related questions — normalised into…

  A2A agent · Ghost Agent OS · 5 skills

• MCP Surface Lint Live MCP

  Statically audits MCP tool surfaces for token cost, schema quality, and design issues.

  MCP server · io.github.DLeibner

• NAIF Gravity Diagnostic — Free MCP/API/Webhook Triage Live MCP

  Free MCP, API auth, webhook and schema diagnostics with bounded checks and safe quote routing.

  MCP server · com.naifgravity

• Oh My Posh Validator Live MCP

  Validate oh-my-posh configurations and segment snippets against the official schema.

  MCP server · dev.ohmyposh

• parse-mcp Live MCP

  Hosted MCP server for AI brand visibility research. Search brands, prompts, and dataset stats across Parse's AI visibility index covering ChatGPT, Google AI Overviews, Perplexity, Copilot, and more.

  MCP server · dimitry

• Parse.ly MCP Live MCP

  Query your Parse.ly content analytics: top content, referrers, campaigns, trends and real-time data.

  MCP server · com.parsely.dash

• RegLayer Instant Decision Briefs Live MCP

  Company-specific regulatory assessments for concrete business questions, as structured data or PDF.

  MCP server · ai.reglayer

• Rooms by Aurmada Live A2A

  Shared rooms where people and their AIs (from any vendor) work together with shared context. Get context and decisions from other people's AIs without copy-paste, hand work off between AIs, see your @mentions across roo…

  A2A agent · Rooms by Aurmada · 12 skills

• Rosentic Live A2A

  Cross-branch semantic conflict detection engine. Checks whether active git branches are compatible before merge. Detects function signature mismatches, HTTP route conflicts, GraphQL schema breaks, OpenAPI drift, and pro…

  A2A agent · Rosentic · 5 skills

• ScalpStream Research Live A2A

  Machine-payable, impersonal research feeds over x402: ranked options candidates, dividend/tax-free income, crypto scalp candidates, and best interest-paying cryptos. Built to be polled: free previews carry a judgeable s…

  A2A agent · ScalpStream Research · 4 skills

• Strasmore US market data Live A2A

  Runs read-only ClickHouse SQL over US stock and options market data — daily and minute bars, trades and quotes, options greeks, dividends, splits, fundamentals, SEC filings, news, macro — and returns the rows as JSON. N…

  A2A agent · Strasmore, Inc. · 3 skills

• TESSA Marketing & Technology Live A2A

  Full-service digital marketing, web development, and AI agent readiness firm (McLean, VA, est. 2012). Services include SEO, paid media, web/app development, AI website experiences, AI agent readiness, and accessibility…

  A2A agent · TESSA Marketing & Technology · 12 skills

• ToolSnap MCP (icosaedro) Live MCP

  Context-efficient microtools for AI agents. 33 tools total. Flagship fetch_extract: 98.1% median token reduction (53,820 → 2,001 tokens) — saves ~$0.156/call at Sonnet pricing vs loading raw HTML. Paid tools: web extrac…

  MCP server · icosaedro

• Validate Agent Live A2A

  Security and data-quality guardrails for AI agents. Stop prompt injections before they reach your LLM. Strip PII to stay compliant. Sanitize untrusted HTML without installing dependencies. Validate emails, URLs, JSON sc…

  A2A agent · Validate Agent · 12 skills

• Vector Panda Live MCP

  Operate your Vector Panda collections: search and upsert vectors, schema, measured indexes, exports.

  MCP server · com.vectorpanda

• WaveHouse Cloud Live MCP

  Browse, query, and administer your managed WaveHouse + ClickHouse projects (schema, pipes, policy).

  MCP server · cloud.wavehouse

• WyndPath Web Data Live MCP

  Fetch and extract data from any public web page, even JS-rendered or anti-bot protected

  MCP server · com.wyndpath

• ClawFetch x402

  ClawFetch turns the open web into agent-ready data: stealth page fetching, headless JS rendering, structured extraction from 17 specialized sites (Twitter/X, GitHub, CoinGecko, Hacker News, YouTube, Wikipedia, npm, PyPI…

  x402 paid API · 8 endpoints · check 90/100

Related capabilities

x402 paid APIsResearchAI models & inferenceAgent infrastructureWeb scrapingDocuments & PDFsLegal & complianceTrading & markets

How to use one

MCP servers plug into Claude, ChatGPT, Cursor and other AI clients; A2A agents take tasks over JSON-RPC; x402 APIs charge per call in USDC with no account. Guides: A2A vs MCP · How to call an A2A agent · x402 for agents.

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