"Resources for Learning Coding Library Documentation" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Pay-per-call AI micro-tasks for agents. 20 tasks - summarize, code review, JSON, media - from $0.003 USDC on Base. x402 v2. Free discovery tools: list_tasks, price_task, check_health.
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.
Free directory of MCP servers and x402 APIs for AI agents. Find them, or list your own in one call.
Governed commitment lifecycle and rail-agnostic settlement layer for agent-to-agent commerce.
Auto-renewal law checks (ROSCA, click-to-cancel) for Stripe Checkout, cancellation, renewal emails
Testnet wallet for AI agents on Aether: pay, get paid and buy from paid APIs, with spending caps.
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.
Dext MCP server for ChatGPT, Claude and any AI agent: upload receipt, list items to review, edit extracted data, publish to ledger and export costs in your own Dext account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Dext yourself; Cotlet does not store your password and you need no Dext API key. About the official Dext API: Dext has no public developer API and no API docs on dext.com, and no official MCP server (checked 14 Oct 2026). The only official connection is the Zapier app, with 3 triggers and 4 actions: it submits receipts and sales invoices, reads processed receipts and creates client accounts. Setup and FAQ: https://cotlet.dev/integrations/dext-api-mcp-server
Accelo MCP server for ChatGPT, Claude and any AI agent: list tickets, reply to ticket, update ticket, log time, create task and create quote in your own Accelo account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Accelo yourself; Cotlet does not store your password and you need no Accelo API key. About the official Accelo API: Accelo has a full REST API and a hosted MCP server, but the MCP server is built for questions about your data (checked 17 Oct 2026). The API covers companies, contacts, tickets, projects, tasks, activities, quotes and invoices, and you register an OAuth application under Configuration > API to use it. Setup and FAQ: https://cotlet.dev/integrations/accelo-api-mcp-server
Skavio LLC serves 18 MCP tools. Four separately priced blockchain verification/DNS-TLS calls use native Circle USDC via x402 v2 on Base or Solana: Verify 0.02, Match 0.03, evidence PDF 0.05, DNS/TLS audit 0.05 USDC. Free discovery requires no wallet. Additional company document, OCR, invoice and audio relays use authenticated Agent Tools credentials and can debit prepaid company credits for eligible processing jobs. A human company admin may buy USD 5-500 Stripe card credit packs or top up with USDC at https://getskavio.com/agent-tools/dashboard.html. Those card credits DO NOT pay for the four standalone x402 USDC tools. Base-only HTTP x402 routes are separate. Endpoint: https://getskavio.com/mcp ; Docs: https://getskavio.com/agent-tools/docs.html ; USDC APIs: https://getskavio.com/x402/docs/ ; Support: support@getskavio.com. Evidence PDF is not a tax invoice. No real external paid card-to-MCP job E2E is verified yet.
SuiteDash MCP server for ChatGPT, Claude and any AI agent: create contact, create project, create invoice, add task and send portal message in your own SuiteDash account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to SuiteDash yourself; Cotlet does not store your password and you need no SuiteDash API key. About the official SuiteDash API: SuiteDash has a Secure API for Super Admins and Admins, with monthly call caps, but its Zapier app only covers contacts, companies, projects and tasks (checked 11 Oct 2026). No official endpoint or Zapier action creates invoices, records payments, sends portal messages or shares files. Setup and FAQ: https://cotlet.dev/integrations/suitedash-api-mcp-server
iFirma MCP server for ChatGPT, Claude and any AI agent: issue invoice, send invoice, send to KSeF, add cost and list unpaid invoices in your own iFirma account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to iFirma yourself; Cotlet does not store your password and you need no iFirma API key. About the official iFirma API: Yes. iFirma has a documented JSON API that issues invoices, lists them, records payments, sends them by email and to KSeF, and adds cost documents (checked 14 Oct 2026). Setup and FAQ: https://cotlet.dev/integrations/ifirma-api-mcp-server
Pixieset MCP server for ChatGPT, Claude and any AI agent: create gallery, upload photos, send invoice, list bookings and add client in your own Pixieset account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Pixieset yourself; Cotlet does not store your password and you need no Pixieset API key. About the official Pixieset API: Pixieset has no public API, no webhooks and no Zapier app (checked 11 Oct 2026). Its Apps & Plugins page lists the Lightroom plugin, the Studio Manager mobile app and Photo Editor, and no developer program. Setup and FAQ: https://cotlet.dev/integrations/pixieset-api-mcp-server
Invoice2go MCP server for ChatGPT, Claude and any AI agent: create invoice, send invoice, send payment reminder, create estimate and list unpaid invoices in your own Invoice2go account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Invoice2go yourself; Cotlet does not store your password and you need no Invoice2go API key. About the official Invoice2go API: Invoice2go publishes no public API or self-serve API keys; its integrations site lists a REST API only as "Request this integration" (checked 8 Nov 2026). It connects through built-in integrations and a Zapier app, and has no official MCP server. Setup and FAQ: https://cotlet.dev/integrations/invoice2go-api-mcp-server
Invoice Simple MCP server for ChatGPT, Claude and any AI agent: create invoice, send invoice, create estimate, list unpaid invoices and mark invoice paid in your own Invoice Simple account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Invoice Simple yourself; Cotlet does not store your password and you need no Invoice Simple API key. About the official Invoice Simple API: Invoice Simple publishes no public API, API keys or developer documentation; its plans offer built-in payment integrations instead (checked 8 Nov 2026). It has no official MCP server. Setup and FAQ: https://cotlet.dev/integrations/invoice-simple-api-mcp-server
Hire verified local people for real-world tasks. Paid upfront, released on approved photo proof.
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.
Call for a human OK before an irreversible action: approve link + Ed25519 receipt
Escrow for AI agents on the XRP Ledger. 51 tools. Free testnet sandbox (no real XRP).
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.
TaxDome MCP server for ChatGPT, Claude and any AI agent: create job, request documents, send invoice, message client and list overdue tasks in your own TaxDome account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to TaxDome yourself; Cotlet does not store your password and you need no TaxDome API key. About the official TaxDome API: TaxDome has no public API that firms can use today (checked 14 Oct 2026). Its Zapier integration only creates, updates and finds contacts, and TaxDome MCP, which would let Claude or ChatGPT work in a firm account, is announced but not open yet and is offered to Professional and Business plan firms first. Setup and FAQ: https://cotlet.dev/integrations/taxdome-api-mcp-server
Számlázz.hu MCP server for ChatGPT, Claude and any AI agent: issue invoice, cancel invoice, issue receipt, record payment and get invoice PDF in your own Számlázz.hu account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Számlázz.hu yourself; Cotlet does not store your password and you need no Számlázz.hu API key. About the official Számlázz.hu API: Yes. Számlázz.hu has an official API called Számla Agent, in operation since 2010, that issues, reverses and queries invoices and records payments over HTTP with XML (checked 14 Oct 2026). Setup and FAQ: https://cotlet.dev/integrations/szamlazz-hu-api-mcp-server
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.
SnelStart MCP server for ChatGPT, Claude and any AI agent: create sales invoice, add relation, book entry, list open items and upload document in your own SnelStart account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to SnelStart yourself; Cotlet does not store your password and you need no SnelStart API key. About the official SnelStart API: Yes, but it is gated (checked 14 Oct 2026). SnelStart has a B2B API for software partners: you request a connection, get a development key and portal access, and a production integration for several users needs certification, OAuth, a webhook URL and at least five named customers. Setup and FAQ: https://cotlet.dev/integrations/snelstart-api-mcp-server
Recurly MCP server for ChatGPT, Claude and any AI agent: find account, change subscription, cancel subscription, refund invoice and list past-due accounts in your own Recurly account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Recurly yourself; Cotlet does not store your password and you need no Recurly API key. About the official Recurly API: Yes, Recurly has a full REST API for accounts, subscriptions, invoices, transactions and coupon redemptions (checked 14 Oct 2026). It authenticates with one private API key for the whole site, and Recurly's own MCP server, Compass, only searches the docs and writes code examples; it does not change your billing data. Setup and FAQ: https://cotlet.dev/integrations/recurly-api-mcp-server
Odoo MCP server for ChatGPT, Claude and any AI agent: create invoice, send invoice, register payment, list unpaid invoices and create contact in your own Odoo account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Odoo yourself; Cotlet does not store your password and you need no Odoo API key. About the official Odoo API: Yes, Odoo has an external API, but on Odoo Online it is only available on the Custom plan, not on One App Free or Standard (checked 14 Oct 2026). It is a full read and write API (JSON-2 since Odoo 19, XML-RPC and JSON-RPC deprecated), authenticated with an API key per user. Setup and FAQ: https://cotlet.dev/integrations/odoo-api-mcp-server
Invoice Ninja MCP server for ChatGPT, Claude and any AI agent: create invoice, send invoice, create quote, record payment and list overdue invoices in your own Invoice Ninja account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Invoice Ninja yourself; Cotlet does not store your password and you need no Invoice Ninja API key. About the official Invoice Ninja API: Yes, Invoice Ninja has a full REST API (checked 14 Oct 2026): invoices, quotes, clients, payments, products and more, authenticated with an API token you create in Settings. REST API access comes with the Ninja Pro, Enterprise and Premium plans, and the Free plan has none. Setup and FAQ: https://cotlet.dev/integrations/invoice-ninja-api-mcp-server
Fortnox MCP server for ChatGPT, Claude and any AI agent: create invoice, send invoice, create customer, book voucher and list unpaid invoices in your own Fortnox account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Fortnox yourself; Cotlet does not store your password and you need no Fortnox API key. About the official Fortnox API: Yes, Fortnox has a public REST API with scopes for invoices, customers, vouchers and invoice payments (checked 14 Oct 2026), but it is not open by default: you register an integration, request scopes, and the company must hold the Fortnox licence each resource needs. Fortnox publishes no MCP server of its own. Setup and FAQ: https://cotlet.dev/integrations/fortnox-api-mcp-server
Fiken MCP server for ChatGPT, Claude and any AI agent: create invoice, send invoice, book purchase, add contact and list unpaid invoices in your own Fiken account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Fiken yourself; Cotlet does not store your password and you need no Fiken API key. About the official Fiken API: Yes, Fiken has a documented REST API (v2) for invoices, sales, purchases, contacts, offers, credit notes and attachments (checked 14 Oct 2026), but it is a paid add-on: 99 NOK per month for a company registered in Brønnøysundregistrene. Apps that serve other companies must register an OAuth2 app, and Fiken publishes no MCP server of its own. Setup and FAQ: https://cotlet.dev/integrations/fiken-api-mcp-server
Facturama MCP server for ChatGPT, Claude and any AI agent: issue CFDI invoice, issue credit note, cancel invoice, add client and download XML/PDF in your own Facturama account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Facturama yourself; Cotlet does not store your password and you need no Facturama API key. About the official Facturama API: Yes. Facturama has a REST API that stamps CFDI 4.0 invoices, but it is a paid add-on and it has no official MCP server (checked 14 Oct 2026). Setup and FAQ: https://cotlet.dev/integrations/facturama-api-mcp-server
Expensify MCP server for ChatGPT, Claude and any AI agent: create expense, attach receipt, create report, submit report and approve report in your own Expensify account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Expensify yourself; Cotlet does not store your password and you need no Expensify API key. About the official Expensify API: Yes, but it is narrow (checked 14 Oct 2026). Expensify's Integration Server API creates expenses, creates reports (domain and policy admins, after enablement) and exports reports, with credentials you generate yourself. Setup and FAQ: https://cotlet.dev/integrations/expensify-api-mcp-server
Exact Online MCP server for ChatGPT, Claude and any AI agent: create sales invoice, send invoice, create relation, book journal entry and list outstanding items in your own Exact Online account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Exact Online yourself; Cotlet does not store your password and you need no Exact Online API key. About the official Exact Online API: Yes. Exact Online has a full REST API (checked 14 Oct 2026): sales invoices, relations, journal entries, purchase entries and receivables can be read and written per division. Setup and FAQ: https://cotlet.dev/integrations/exact-online-api-mcp-server
ERPNext MCP server for ChatGPT, Claude and any AI agent: create sales invoice, submit invoice, create payment entry, list overdue invoices and create customer in your own ERPNext account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to ERPNext yourself; Cotlet does not store your password and you need no ERPNext API key. About the official ERPNext API: Yes. ERPNext has a full REST API (checked 14 Oct 2026): any record, including customers, sales invoices and payment entries, can be listed, created, updated and deleted, and whitelisted methods can be called. Setup and FAQ: https://cotlet.dev/integrations/erpnext-api-mcp-server
e-conomic MCP server for ChatGPT, Claude and any AI agent: create draft invoice, book invoice, add customer, list unpaid invoices and create entry in your own e-conomic account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to e-conomic yourself; Cotlet does not store your password and you need no e-conomic API key. About the official e-conomic API: Yes, e-conomic has a full REST API with customers, draft and booked invoices, invoice PDFs and journal vouchers (checked 14 Oct 2026), but you get it through a developer agreement: you create an app that holds an AppSecretToken, and each accounting user grants it access with an AgreementGrantToken. The developer docs list no official MCP server. Setup and FAQ: https://cotlet.dev/integrations/e-conomic-api-mcp-server
Alegra MCP server for ChatGPT, Claude and any AI agent: create invoice, email invoice, record payment, add contact and list unpaid invoices in your own Alegra account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Alegra yourself; Cotlet does not store your password and you need no Alegra API key. About the official Alegra API: Yes, Alegra has a REST API for invoices, contacts, payments and items (checked 14 Oct 2026). You call it with your account email and an API token, and Alegra Help says integrations need the Plus plan. Setup and FAQ: https://cotlet.dev/integrations/alegra-api-mcp-server
17hats MCP server for ChatGPT, Claude and any AI agent: add contact, create project, send quote, send invoice and record payment in your own 17hats account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to 17hats yourself; Cotlet does not store your password and you need no 17hats API key. About the official 17hats API: 17hats publishes no public API. Its only key is for Zapier, on the new subscription plan, and that integration "is limited to importing, updating and syncing Contacts" (checked 9 Nov 2026). Setup and FAQ: https://cotlet.dev/integrations/17hats-api-mcp-server
Non-custodial stablecoin bill-pay rails on Celo & Base for AI agents, settled on-chain via MCP.
Search and compare travel eSIMs, check phones, get live EUR prices. Customers pay on monoesim.app.
Vtiger MCP server for ChatGPT, Claude and any AI agent: list contacts, convert contact to deal, list deals, update deal stage, list cases, create case, update case and create contact in your own Vtiger account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to Vtiger yourself; Cotlet does not store your password and you need no Vtiger API key. About the official Vtiger API: Yes, Vtiger has a REST API, but its limits table lists 0 requests for One Pilot and 24,000 a day (30 a minute) for One Growth, and Vtiger has no official MCP server (checked 22 Oct 2026). Setup and FAQ: https://cotlet.dev/integrations/vtiger-api-mcp-server
SuiteCRM MCP server for ChatGPT, Claude and any AI agent: list leads, convert lead, create lead, update opportunity, create task, log call, add note and add case update in your own SuiteCRM account. Cotlet works in the account through your Cloud Browser, a real Chrome where you sign in to SuiteCRM yourself; Cotlet does not store your password and you need no SuiteCRM API key. About the official SuiteCRM API: Yes, SuiteCRM has a full REST API (v8) for records and relationships, but no official MCP server, and an admin must first create an OAuth2 client on your server (checked 23 Oct 2026). Setup and FAQ: https://cotlet.dev/integrations/suitecrm-api-mcp-server
