"Creating an MCP Server Using an API" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Pay-per-call web reading for AI agents over x402 — no account, no API key, billed only when content is delivered, with signed provenance on every paid response. Start free with POST /v1/probe.
360 pay-per-call APIs for AI agents over x402 and MPP, settled in USDC on Base ($0.001-$0.25 a call, no account or API key). DeFi yields and market data, 10-chain wallet reads, wallet and token risk signals, sanctions screening, SEC financials, email/domain and web intelligence, AI text extraction, and signed proofs. Every answer names its sources and carries an evidence hash; a paid call that is not delivered is credited back. Built and run by UnyKorn LLC.
Non-custodial stablecoin bill-pay rails on Celo & Base for AI agents, settled on-chain via MCP.
Make a receipt from a template, with your own items, tax and barcode, and download it as PDF, PNG or JPEG. Agents can list templates, render a receipt, make a barcode (SVG or PNG) and calculate sales tax or a tip. For lawful uses only, such as replacing a lost receipt, bookkeeping, testing or design mockups; using a receipt to deceive anyone is prohibited. Free daily quota, no API key; agent files deleted after 24 hours.
Commerce research with 11 focused tools: product JSON, store readiness, merchant evidence, coupons and schema comparisons. Free labeled example.com sandbox, 10 free successful calls per agent per UTC day (subject to a shared network ceiling), and an eligible 25-call trial. Paid results use x402 USDC on Base. Setup: https://gethirepulse.xyz/?ref=glama-commerce#start-commerce . Evidence scores do not certify merchant safety. Reconnect to https://gethirepulse.xyz/mcp for all 27 tools.
Create, send and track invoices from a conversation in Claude, ChatGPT or any MCP client that supports OAuth. Draft an invoice from one sentence or from last month's invoice for the same client, finalize it, email it to your client and send payment reminders for overdue ones. See revenue by month and by client, download PDFs and e-invoices (ZUGFeRD, XRechnung), and export DATEV packages for your tax advisor. Invoices follow the tax rules of 25 countries, including reverse charge and the small-business VAT exemption. New invoices are drafts, and nothing is emailed until you ask. Pay per invoice with no subscription: the first invoice is free.
API discovery and x402 paid execution via MCP. Search by natural-language, call with USDC payment on Arbitrum, Base, BNB, Solana, SEI
Objective Trust ranks MCP endpoints before the caller pays them. Tools: set_objective (free), rank_tools_for_task (API key or $0.005 x402), record_outcome (free). Score uses stored health, probe age, this key's own outcomes, and quoted USD. Sponsored, featured, and click_count are excluded from the score. The caller calls the chosen mcp_url and pays that server. Connect at https://agentshare.dev/mcp/objective-trust.
AMC/GME 25-session DTW price roadmaps, paid via x402. Settle-proven 2026-11-02 (SELF-PROOF).
SqueezeOS MCP for x402-paid USDC APIs on Base. Flagship read settle-proven 2026-11-02 (SELF-PROOF).
402xAgent is the check an agent calls before paying any x402 endpoint. It probes the endpoint's 402 without paying and returns a pay / skip / recheck verdict with a reason. Every check leaves a public receipt. It never pays the target.
Call preflight_payment before signing x402: allow, hold or block. Sellers start with free Lint.
Pay-per-call MCP tools for agents: 20 free calls a day, then pay per call with x402 (USDC on Base mainnet) or a prepaid spend key. 30 tools — text/data utilities, x402/EVM-native tools (decode an x402 challenge, verify a settlement receipt on-chain, EIP-712 hashing, ABI encode/decode, Merkle-proof verify, keccak256, EIP-55 address checks) and independent providers' tools priced from $0.001. Signed delivery receipts. No sign-up.
Freelancer time tracking for AI assistants: log time, timers, timesheets, sign-off links, invoices.
MCP server for crypto payments: an AI agent opens its own merchant account and accepts, sends and exchanges crypto.
Free US moving quotes for AI agents (long-distance nationwide, local DC/MD/VA). Optional x402 quote.
PDFs, images and e-invoices (XRechnung, ZUGFeRD) from templates and JSON, rendered in the EU.
Check custom photo magnet pack pricing, delivery lead times, and create instant orders.
Pay for APIs with USDC. Read-only x402 payment discovery, verification, evidence, and status.
SimFuse is a travel eSIM storefront covering 200+ countries and regions. This connector lets an AI assistant plan a trip, compare live prices and open a checkout for eSIM data. Browsing needs no authentication. What it does: - plan-trip: give the stops (country code and days in each) and it compares one plan covering the whole route against one plan per country against a mix, on live prices, then flags the cheapest complete option and lists any country it cannot cover. - list-destinations: search every country and region SimFuse sells for, with the cheapest plan price per destination. - list-plans and get-plan: browse a destination's plan ladder, filter by data amount, validity and price, and inspect a single plan in detail. - get-plan-coverage: check every country a plan works in before buying. - create-checkout-session: open a checkout for the selected plans at frozen prices. Nothing is charged by that call; payment, completion and cancellation happen over the agentic HTTP API with the returned key. Good to know: prices come back in minor units of the currency you ask for, data allowances are in megabytes, and quotes are offers rather than reservations, so the charged total is computed at checkout. Operated by Qorinx OÜ. Buy directly at https://simfuse.app, agent documentation at https://simfuse.app/agent/.
Peppol e-invoicing API for developers. Without an account: plan your integration, search the docs, check a test invoice against the Peppol rules and look up a Peppol receiver. With a free account: send sandbox test invoices and follow their delivery. Sandbox only.
Quotes and invoices numbered without gaps, sent as PDFs, paid online. Pay per action.
Build, run, schedule, and publish AI video pipelines to YouTube and TikTok from any MCP client.
Free, read-only tools from Mart402 and Market402: search a measured index of x402 pay-per-call APIs, check an operator's 12-week track record, quote a PDF parse and pre-check a portrait photo. Nothing here charges or asks for payment.
Instant QR event photo vault pricing, multi-currency event passes, and album capacity tools.
Deploy a repo to a live app from chat: servers, Postgres, domain, email, Stripe, security scan.
A shared story anyone can continue. Read the last line, quote a passage, submit a paid line.
Branded invoices and EU e-invoices (ZUGFeRD / XRechnung) for freelancers and small studios. Create, finalize and send invoices, record payments, turn quotes into invoices, handle credit notes and dunning - about 19 tools. Auth: Authorization: Bearer bb_... (API key under Settings > API keys, free plan included). Data hosted in Germany.
Markdown scrape, site map, page metadata, screenshots, web search and PDF to text. Pay per call
Find and live-check the paid x402 API for an agent task, ranked by real 30-day payers and price.
