x402.freeq.one publishes 15 machine-payable endpoints over the x402 protocol, priced from $0.001 to $0.005 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /mcp | POST | $0.001 | 402 |
| /tools/html_to_markdown | POST | $0.001 | 402 |
| /tools/jobs | POST | $0.002 | 402 |
| /tools/markdown | GET | $0.001 | 402 |
| /tools/mermaid | GET | $0.005 | 402 |
| /tools/og_image_generator | POST | $0.001 | 402 |
| /tools/qr_generator | GET | $0.001 | 402 |
| /tools/verify_batch | GET | $0.005 | 402 |
| /tools/verify_semaphore | GET | $0.001 | 402 |
| /tools/verify_worldid | GET | $0.005 | 402 |
| /tools/wallet_checksum | GET | $0.001 | 402 |
| /tools/wallet_verify_nostr | GET | $0.001 | 402 |
| /tools/wallet_verify_siwe | GET | $0.001 | 402 |
| /tools/wallet_verify_solana | GET | $0.001 | 402 |
| /tools/whale_alerts | POST | $0.002 | 402 |
Pay-per-call MCP gateway: 7 tools (markdown, token_price, wallet_portfolio, whale_alerts, cross_chain_balance, changelog_openapi, changelog_git). Per-tool prices on Base via the Coinbase CDP x402 faci…
x402-gateway tool: html_to_markdown — Convert an HTML string to clean, LLM-ready Markdown. Handles headings, links, images, tables, lists and code blocks. Options: heading style (atx|setext), bullet l…
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 descripti…
x402-gateway tool: markdown — 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, in…
x402-gateway tool: mermaid — 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),…
x402-gateway tool: 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 UR…
x402-gateway tool: qr_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,…
x402-gateway tool: verify_batch — Batch verify up to 10 Semaphore proofs in a single request. Returns per-proof results with total count and average duration.
x402-gateway tool: verify_semaphore — Verify a Semaphore ZK proof locally using Groth16 (embedded official vkey). No external dependency. Send the proof object from @semaphore-protocol/proof generateP…
x402-gateway tool: verify_worldid — 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.…
x402-gateway tool: wallet_checksum — Convert an Ethereum address to its EIP-55 checksummed form. SIWE messages require the checksummed address on line 2 before signing.
x402-gateway tool: wallet_verify_nostr — Verify a NIP-98 Nostr HTTP auth event. Returns the signer pubkey. Stateful replay protection: each event id can only be verified once.
x402-gateway tool: wallet_verify_siwe — Verify a Sign-In-With-Ethereum (EIP-4361) signature. Stateless oracle: checks the signature against the message and returns the wallet address + chainId. Never …
x402-gateway tool: wallet_verify_solana — Verify an ed25519 Solana wallet signature over a message containing a 'Nonce: <value>' line. Returns the signer pubkey. Consumes the nonce — one verification …
Pay-per-call MCP gateway: 12 tools (markdown, token_price, wallet_portfolio, whale_alerts, cross_chain_balance, changelog_openapi, changelog_git, mermaid, html_to_markdown, qr_generator, og_image_gene…