x402-gateway
44 x402 APIs served from x402.freeq.one
Every listing from x402-gateway that ToolVet tracks. Each one is called on a schedule without paying and scored out of 100.
At a glance
- Listings
- 44 x402 APIs
- Passing at the latest check
- 44 of 44
- Uptime, 30 days
- 99.24% on average across 44 listings
- Price
- $0.001 to $1.01 per call
- Trust score
- 60 to 78, median 75
- Paying wallets, 30 days
- 3 on its busiest listing
- Verified owner
- None
- Security findings
- None found
- Listed since
- 11 Oct 2026
The x402 Bazaar counts paying wallets per listing. A wallet that paid two listings counts twice. So the Bazaar saw between 3 and 77 different wallets paying x402-gateway in 30 days.
All 44 listings
Ranked by trust score.
- 78trustTools Token Pricex402-gateway
Token Price Lookup: Get the live USD price of any token by symbol (e.g. BTC, ETH, SOL, PEPE). Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/token_price.
$0.002per call on Base100% uptime, 371 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Qr Generatorx402-gateway
QR/Barcode Generator: Generate a QR code or barcode as an image (SVG or PNG). Returns a base64-encoded image (MCP content type image). Symbologies: qrcode/qr, code128, code39, ean13, ean8, upca, upce, isbn10, isbn13, issn, itf, gs1-128, databar. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/qr_generator.
$0.002per call on Base100% uptime, 358 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Mermaidx402-gateway
Mermaid Diagram Renderer: Render a Mermaid diagram to an image (PNG or SVG). Returns a base64-encoded image (MCP content type image). Options: format (png|svg), theme (default|dark|forest|neutral), scale (1-4, PNG only). Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/mermaid.
$0.005per call on Base100% uptime, 450 ms, 3 paying agentsPassing, checked 2 h ago - 78trustTools Og Image Generatorx402-gateway
OG Image Generator: Generate an Open Graph social-card image (1200x630 PNG) from a title and description. Returns a base64-encoded image (MCP content type image). Optional image URL embeds a header graphic. Title truncated to 60 chars, description to 120. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/og_image_generator.
$0.002per call on Base100% uptime, 347 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Whale Alertsx402-gateway
Whale Alerts Scanner: Scan recent blocks for large ETH transfers involving an address. Filter by direction (in/out/both) and threshold. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/whale_alerts.
$0.002per call on Base100% uptime, 380 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Wallet Portfoliox402-gateway
Wallet Portfolio: Get a complete wallet portfolio for an Ethereum address: native ETH balance, ERC-20 balances, NFT holdings, recent transfers. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/wallet_portfolio.
$0.002per call on Base100% uptime, 344 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Markdownx402-gateway
Markdown Extractor: Fetch a URL and convert its main content to clean, LLM-ready Markdown (strips nav/ads/sidebars). Options: output_format (markdown|text|json), css_selector, max_length, include_links, include_images. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/markdown.
$0.002per call on Base100% uptime, 402 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Wallet Checksumx402-gateway
Ethereum Address Checksum: Convert an Ethereum address to its EIP-55 checksummed form. SIWE messages require the checksummed address on line 2 before signing. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/wallet_checksum.
$0.002per call on Base100% uptime, 346 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Verify Semaphorex402-gateway
Semaphore ZK Proof Verifier: Verify a Semaphore ZK proof locally using Groth16 (embedded official vkey). No external dependency. Send the proof object from @semaphore-protocol/proof generateProof(). Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/verify_semaphore.
$0.002per call on Base100% uptime, 400 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Html To Markdownx402-gateway
HTML to Markdown Converter: Convert an HTML string to clean, LLM-ready Markdown. Handles headings, links, images, tables, lists and code blocks. Options: heading style (atx|setext), bullet list marker, code block style, emphasis delimiters. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/html_to_markdown.
$0.002per call on Base100% uptime, 368 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Cross Chain Balancex402-gateway
Cross-Chain Balance Checker: Aggregate native balance and token/NFT counts for an address across eth, arb, base, polygon, opt. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/cross_chain_balance.
$0.002per call on Base100% uptime, 366 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Verify Worldidx402-gateway
World ID Proof Verifier: Verify a World ID 4.0 proof via the Worldcoin Developer Portal API. Generates an RP signature server-side, then proxies the full IDKit proof to developer.world.org. Returns { valid, nullifier, worldcoin_response }. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/verify_worldid.
$0.005per call on Base100% uptime, 347 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Verify Batchx402-gateway
Batch Semaphore Proof Verifier: Batch verify up to 10 Semaphore proofs in a single request. Returns per-proof results with total count and average duration. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/verify_batch.
$0.005per call on Base100% uptime, 436 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Changelog Openapix402-gateway
OpenAPI Changelog Generator: Diff two OpenAPI specs and generate a structured breaking-change changelog (no LLM — deterministic diff). Provide base_spec_url and new_spec. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/changelog_openapi.
$0.005per call on Base100% uptime, 454 ms, 3 paying agentsPassing, checked 3 h ago - 78trustTools Keyword Volumex402-gateway
Keyword Volume: Google search volume, CPC, and competition for up to 100 keywords. Priced below typical SEO-data APIs. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/keyword_volume.
$0.03per call on Base100% uptime, 295 ms, 1 paying agentsPassing, checked 2 h ago - 78trustTools Google Serpx402-gateway
Google SERP: Live Google organic results for any keyword. Returns top 10 titles, URLs, snippets, and rank. Priced below typical SEO-data APIs. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/google_serp.
$0.02per call on Base100% uptime, 232 ms, 1 paying agentsPassing, checked 2 h ago - 77trustTools Jobsx402-gateway
Job Search: Search live job postings by keywords and locations. Returns structured results: title, company, location, apply URL, work types, employment type, seniority, industry, salary, and description. Supports onsite/remote/hybrid preferences. One call covers the whole market for a keyword + location pair. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/jobs.
$0.002per call on Base100% uptime, 421 ms, 2 paying agentsPassing, checked 2 h ago - 77trustX402x402-gateway
MCP server for AI agents: 31 tools (blockchain data, web scraping, ZK proofs, image generation, gift cards) payable per call in USDC on Base via x402. Send JSON-RPC tools/call requests.
$0.001per call on Base100% uptime, 446 ms, 2 paying agentsPassing, checked 2 h ago - 77trustTools Webhook Catchx402-gateway
Ephemeral webhook receiver. Creates a single-use HTTPS URL that catches any POST (Stripe, GitHub, internal) for 1 hour; senders pay nothing. Read captured events for $0.01 per read, extend for $0.05/hour. Response returns hook_url, read_url, extend_url, expires_at.
$0.05per call on Base100% uptime, 449 ms, 2 paying agentsPassing, checked 2 h ago - 77trustTools Document To Markdownx402-gateway
Document to Markdown (auto-detect): Convert any document to Markdown with automatic format detection. One endpoint for pdf, docx, pptx, xlsx, csv, epub, html and plain text — provide a URL or base64 bytes and the type is detected from the file contents. Spreadsheets return both a Markdown table and a JSON array of rows. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/document_to_markdown.
$0.01per call on Base100% uptime, 451 ms, 2 paying agentsPassing, checked 2 h ago - 75trustTools Llm Chatx402-gateway
LLM Chat: Chat with a language model. OpenAI-compatible /v1/chat/completions interface. Supports 50+ models. Free models (auto, eco, premium) are $0 — paid models (gpt-5.2, claude-opus-5, deepseek-v4-pro, ...) are charged at cost. See /tools/llm_chat/models for the full model list and rates. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/llm_chat.
$0.002per call on Base100% uptime, 405 ms, 1 paying agentsPassing, checked 46 min ago - 75trustTools Wallet Verify Solanax402-gateway
Solana Signature Verifier: Verify an ed25519 Solana wallet signature over a message containing a 'Nonce: <value>' line. Returns the signer pubkey. Consumes the nonce — one verification per nonce. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/wallet_verify_solana.
$0.002per call on Base100% uptime, 362 ms, 1 paying agentsPassing, checked 28 min ago - 75trustTools Changelog Gitx402-gateway
Git Changelog Generator: Diff git commits and generate a structured breaking-change changelog. Provide repository_url, base_commit, and optional target_commit. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/changelog_git.
$0.005per call on Base100% uptime, 397 ms, 1 paying agentsPassing, checked 1 h ago - 75trustTools Wallet Verify Nostrx402-gateway
NIP-98 Nostr Auth Verifier: Verify a NIP-98 Nostr HTTP auth event. Returns the signer pubkey. Stateful replay protection: each event id can only be verified once. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/wallet_verify_nostr.
$0.002per call on Base100% uptime, 362 ms, 1 paying agentsPassing, checked 1 h ago - 75trustTools Wallet Verify Siwex402-gateway
SIWE Signature Verifier: Verify a Sign-In-With-Ethereum (EIP-4361) signature. Stateless oracle: checks the signature against the message and returns the wallet address + chainId. Never mints sessions or consumes nonces. Get a checksummed address first via wallet_checksum. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/wallet_verify_siwe.
$0.002per call on Base100% uptime, 358 ms, 1 paying agentsPassing, checked 1 h ago - 75trustGiftcard Buyx402-gateway
Buy a digital gift card and receive the code instantly. Payment settles on Base via x402.
$1.01per call on Base100% uptime, 352 ms, 1 paying agentsPassing, checked 30 min ago - 75trustTools Epub To Markdownx402-gateway
EPUB to Markdown: Convert an EPUB e-book to clean Markdown. Provide a direct URL or base64-encoded file bytes. Chapters become headings; metadata (title, author) is included. Feed whole books into LLM context or RAG. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/epub_to_markdown.
$0.005per call on Base100% uptime, 383 ms, 1 paying agentsPassing, checked 46 min ago - 75trustTools Xlsx To Markdownx402-gateway
XLSX/CSV to Markdown + JSON: Convert an XLSX spreadsheet or CSV to Markdown table AND a JSON array of row objects in one call. Provide a direct URL or base64-encoded file bytes. All sheets are included; multi-sheet workbooks are flattened in sheet order. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/xlsx_to_markdown.
$0.005per call on Base100% uptime, 388 ms, 1 paying agentsPassing, checked 38 min ago - 75trustTools Pptx To Markdownx402-gateway
PPTX to Markdown: Convert a PPTX (PowerPoint) presentation to Markdown. Provide a direct URL or base64-encoded file bytes. Each slide becomes a heading with its text content — pitch decks and slide reports become LLM-readable text. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/pptx_to_markdown.
$0.005per call on Base100% uptime, 352 ms, 1 paying agentsPassing, checked 44 min ago - 75trustTools Docx To Markdownx402-gateway
DOCX to Markdown: Convert a DOCX (Word) document to clean, LLM-ready Markdown. Provide a direct URL or base64-encoded file bytes. Preserves headings, lists, tables and formatting. Works for contracts, resumes, reports and letters. Pay per call in USDC on Base via x402 — POST https://x402.freeq.one/tools/docx_to_markdown.
$0.005per call on Base100% uptime, 423 ms, 1 paying agentsPassing, checked 32 min ago
How these numbers are made
Each listing is called on a schedule without paying. Listings with usage or a verified owner are checked about every 30 minutes, others about every 6 hours. Uptime is the share of passing checks over 30 days, averaged across this provider's listings. Trust scores follow the published method. The figures on this page can be a few minutes behind the latest checks, and listings hidden after review aren't counted.