Social media: MCP servers, A2A agents and x402 APIs

• Otto AI x402 Live x402

  Otto AI runs a swarm of autonomous agents exposing 84 pay-per-call services on x402 V2 across eight capability tags — Market & Token Intelligence, DeFi & Markets Data, Web & Domain Intelligence, Real-World Data, AI Crea…

  x402 paid API · 12 endpoints · check 90/100

• StableEnrich Live x402

  Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions.

  x402 paid API · 12 endpoints · check 90/100

• Toolsmith Live x402

  Keyless pay-per-call APIs for AI agents: 30 tools across compliance, trade, safety, web and data. Pay per call with USDC on Base via x402. No account, no API key.

  x402 paid API · 12 endpoints · check 90/100

• Vaaya Live x402

  Credit infrastructure for AI agents. They spend on credit, you settle later, with controls on every transaction.

  x402 paid API · 12 endpoints · check 90/100

• botsmith Live x402

  Pay-per-call HTTP APIs for agents. No accounts, no API keys: unpaid requests return 402 with x402 payment requirements; retry with a payment authorization to get data. Free machine-readable catalog at /catalog.

  x402 paid API · 8 endpoints · check 89/100

• twit.sh Live x402

  Payment-gated Twitter/X user and tweet lookup API. Pay per request in USDC on Base via x402.

  x402 paid API · 12 endpoints · check 89/100

• ads.apitoll.cloud Live x402

  Facebook Ad Library search by keyword — every live and recent ad matching a search term across all advertisers on Facebook, Instagram, Messenger and Threads. Returns the full ad creative (headline, body copy, CTA button…

  x402 paid API · 2 endpoints

• agdata.shveik.dev Live x402

  Screenshot API for AI agents: send {url} and get a JPEG, PNG, WebP or PDF of the page as base64 in JSON, with final URL, byte size and pixel size. Pick a desktop, mobile or tablet viewport, full page, dark mode, a delay…

  x402 paid API · 12 endpoints

• agentdata-api.sander-van-aard.workers.dev Live x402

  Real-time crypto market news with sentiment analysis and top headlines ranked by importance, for $0.01 per call. One request, no parameters needed — get the latest market-moving stories as structured JSON, ready for tra…

  x402 paid API · 12 endpoints

• agents.x402stock.xyz Live x402

  The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `…

  x402 paid API · 12 endpoints

• apify-api-git-br-better-actor-pay-merit-systems.vercel.app Live x402

  Start the "Instagram Scraper" Apify actor (apify/instagram-scraper). Scrape and download Instagram posts, profiles, places, hashtags, photos, and comments. Get data from Instagram using one or more Instagram URLs or sea…

  x402 paid API · 1 endpoint

• billionaireorder.com Live x402

  For AI agents building agent swarms, synthetic users, NPCs, or trading bots. Input: archetype + prompt (e.g. 'risk-taking crypto founder'). Output: OCEAN Big Five + Dark Triad + trading psychology vector with emotional…

  x402 paid API · 6 endpoints

• btcnode.uk Live x402

  Last N blocks (default 10): height, hash, size, txcount, time — flat $0.001 per call, USDC on Base, no signup. (10 paid endpoints on btcnode.uk.)

  x402 paid API · 10 endpoints

• clawinabox.xyz Live x402

  Spend-policy verdict for AI agents: POST a proposed spend, get allow/review/deny with the exact rules that fired (per-tx caps, per-agent daily ledger, destination allowlists, time windows) - 'review' can page a human on…

  x402 paid API · 1 endpoint

• clink-lithium-vault.fly.dev Live x402

  X/Twitter search for AI agents - live tweets via advanced search: from:user, exact phrases, #hashtags, min_faves, lang, since/until dates. Returns up to 20 newest matches with author, followers, likes, retweets, views,…

  x402 paid API · 12 endpoints

• clinkagent.com Live x402

  What do the prediction markets say? Pass a question, get a finished read an agent can use directly: the best-matching market on Polymarket and on Kalshi with implied probability and 24h/7d moves, the cross-platform gap…

  x402 paid API · 12 endpoints

• defi-api.agenticfi.wtf Live x402

  Social volume - Twitter/Farcaster mention count for a token (14 paid endpoints on defi-api.agenticfi.wtf.)

  x402 paid API · 12 endpoints

• gmfarcaster.com Live x402

  Ask a natural-language question and get a cited answer from the GM Farcaster library — hundreds of episodes of Farcaster news, interviews, and analysis. Returns a grounded answer plus the source episodes with timestampe…

  x402 paid API · 1 endpoint

• insumermodel.com Live x402

  Signed attestation (ECDSA plus a post-quantum ML-DSA-65 companion) of on-chain wallet conditions across 37 chains: token balance, NFT ownership, EAS, Farcaster, view calls, ratio rules, account code (plain key, EIP-7702…

  x402 paid API · 3 endpoints

• linkedpanda.com Live x402

  LinkedIn profile search results page (10 paid endpoints on api.linkedpanda.com.)

  x402 paid API · 10 endpoints

• miroshark.xyz Live x402

  MiroShark: predict how people and markets react to any scenario - a product launch, policy, campaign, crisis, token launch, or news headline. Spawns a 25-agent simulation across Twitter, Reddit, and a Polymarket-style p…

  x402 paid API · 1 endpoint

• omardev.xyz Live x402

  Extract structured metadata from any URL: page title, meta description, Open Graph and Twitter Card tags, canonical URL, favicons, language, generator and robots directives, plus RSS/Atom feed links. Give it a URL, get…

  x402 paid API · 2 endpoints

• posttosource.com Live x402

  Convert a Twitter/X, LinkedIn, Medium, Substack, Beehiiv, or public Notion page URL into clean markdown.

  x402 paid API · 1 endpoint

• readx.sh Live x402

  Search for tweets by query (optional product filter; paginate with cursor). Example: GET /api/search/tweets?q=typescript (12 paid endpoints on readx.sh.)

  x402 paid API · 12 endpoints

• reddit.apitoll.cloud Live x402

  Reddit search scraper — keyword-search all of Reddit, or scope to one subreddit, for AI agents. Find posts matching any query, sorted by relevance, top, new, hot, or comments, with an optional time window. Returns each…

  x402 paid API · 1 endpoint

• scrooge-x402-tool-mill.vercel.app Live x402

  Extract schema.org structured data from a public HTML page: JSON-LD (@graph flattened), top-level microdata, and Open Graph / Twitter meta. Normalizes Product/Offer, Article, Organization, Event, FAQ, and breadcrumbs. P…

  x402 paid API · 8 endpoints

• search.openverbs.com Live x402

  Wikipedia summary API - the plain-language summary of the best-matching Wikipedia article for a topic or query, in any language. Returns the article title, short description, summary extract, thumbnail image and canonic…

  x402 paid API · 10 endpoints

• socialfetch.dev Live x402

  Search public LinkedIn posts site-wide by keyword (not scoped to one profile or company — use linkedin.profiles.posts.list or linkedin.company.posts.list for that). (39 paid endpoints on api.socialfetch.dev.)

  x402 paid API · 12 endpoints

• stableapify.dev Live x402

  Start the "💡 Indeed Jobs Scraper" Apify actor (valig/indeed-jobs-scraper). $0.1/1K jobs | Scrape job listings, salaries, and company details from Indeed with customizable search filters and structured output. (7 paid e…

  x402 paid API · 7 endpoints

• stablepeopledata.dev Live x402

  PDL Company Enrich - Enrich a company record with firmographics, industry codes, funding, and social profiles. Supports lookup by name, website, ticker, LinkedIn, or PDL ID. (2 paid endpoints on stablepeopledata.dev.)

  x402 paid API · 2 endpoints

• stablesocial.dev Live x402

  Scrape Creators · Google — Company Ads (48 paid endpoints on stablesocial.dev.)

  x402 paid API · 12 endpoints

• sumvid.app Live x402

  Full transcript of a YouTube video from its URL — captions/subtitles as clean plain text in your language. YouTube transcript, video to text, captions extraction, subtitle download, speech to text, multilingual. 105 lan…

  x402 paid API · 1 endpoint

• telemost.io Live x402

  Telegram advertising data: available ad networks and their minimum deposits, compare where to run campaigns. (13 paid endpoints on api.telemost.io.)

  x402 paid API · 12 endpoints

• telesint-api.onrender.com Live x402

  IOC feed from Telegram CTI channels. Filters: type(ip|domain|url|hash|cve), severity, min_confidence, since, tlp, tag, channel, limit, offset. Returns items[] with iocs[], ttps[], confidence, severity, tlp, tags[]. (11…

  x402 paid API · 11 endpoints

• twitr.sh Live x402

  Read live X/Twitter data: look up a single tweet or user profile, batch-read up to 100 tweets or users at once, check whether one account follows another, fetch trending topics by region, extract a long-form article, or…

  x402 paid API · 4 endpoints

• twitter.use.x402atlas.com Live x402

  Search Twitter/X with structured filters or raw advanced-search syntax. Returns up to 20 normalized tweets with full text, author details, engagement metrics and a pagination cursor. (21 paid endpoints on twitter.use.x4…

  x402 paid API · 12 endpoints

• video.cyberwarex.com Live x402

  YouTube video metadata in one call: title, channel name and id, duration, upload date, view and like counts, description, thumbnail URL, the chapter list with start and end times, and the language plus kind (manual or a…

  x402 paid API · 2 endpoints

• web-scraper-api-production-bf20.up.railway.app Live x402

  Extract page metadata: title, description, keywords, author, published/modified dates, canonical, language, favicon, and OpenGraph/Twitter card tags. (3 paid endpoints on web-scraper-api-production-bf20.up.railway.app.)

  x402 paid API · 3 endpoints

• x402-gateway-production-1f21.up.railway.app Live x402

  Extract webpage metadata, OpenGraph and JSON-LD. Returns title, description, canonical URL, robots directives, headings, Open Graph, Twitter cards and structured data for one public URL per paid request. (12 paid endpoi…

  x402 paid API · 12 endpoints

• xhagents.xyz Live x402

  Ask the XH Agents knowledge base (15 field notes on infrastructure, x402 and agent tooling) (24 paid endpoints on xhagents.xyz.)

  x402 paid API · 12 endpoints

• xmedia.use.x402atlas.com Live x402

  Twitter (X) video & image downloader — pass a public tweet / X post URL, get direct CDN media links: .mp4 video URLs with thumbnails plus every image in the post, ready to stream, embed, re-host, or download. No scrapin…

  x402 paid API · 1 endpoint

• youtube.use.x402atlas.com Live x402

  Full transcript of any YouTube video by video id or URL: captions/subtitles as clean plain text plus timestamped segments, the video's chapter markers, and every caption track it offers so an agent can pick a language a…

  x402 paid API · 1 endpoint

• 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

• glim.sh x402

  One remote endpoint gives your agent live data from Twitter, Reddit, the open web, GitHub and more. No API keys, no scraping stack - just connect the URL and go.

  x402 paid API · 12 endpoints · check 90/100

Related capabilities

x402 paid APIsVideo & audioEmailOn-chain dataMarketing & SEOWeb scrapingResearchNews

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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