Backend and APIs MCP servers

1,408 tagged Backend and APIs, measured the same way as everything else here.

Browse within: mcp-server 202model-context-protocol 140cursor 54LLM 51api 43ai-tools 31cli 29fintech 23agentic-ai 19email 19openapi 19x402 18claude-desktop 17agentic-commerce 16

email-deliverability

721

Br0ski777/email-deliverability-x402

MCP server Claude CodeCodexCursor +2

Audit email domain deliverability: SPF, DKIM, DMARC, MX. Score 0-100. x402. Remote server at email-deliverability.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

email-verification

722

Br0ski777/email-verification-x402

MCP server Claude CodeCodexCursor +2

Verify emails: syntax, MX records, disposable detection, quality score 0-100. x402 USDC. Remote server at email-verification.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

fact-checker

723

Br0ski777/fact-checker-x402

MCP server Claude CodeCodexCursor +2

Verify claims with web evidence. Returns sources and verdict. x402 micropayment. Remote server at fact-checker.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

api-tester-ai-mcp

724

CSOAI-ORG/api-tester-ai-mcp

MCP server Claude CodeCodexCursor +2

MCP server for api tester ai. Features send request, validate response, check headers. From MEOK AI Labs. Runs locally from the api-tester-ai-mcp Python package.

not rated 0 6d ago A tokens not measured original MIT

ocr-extract

725

Br0ski777/ocr-extract-x402

MCP server Claude CodeCodexCursor +2

Extract text from images using OCR. Tesseract-powered. x402 micropayment. Remote server at ocr-extract.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

password-strength

726

Br0ski777/password-strength-x402

MCP server Claude CodeCodexCursor +2

Password strength scoring with entropy, crack time estimation, common password detection. x402. Remote server at password-strength.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

pdf-generator

727

Br0ski777/pdf-generator-x402

MCP server Claude CodeCodexCursor +2

Generate PDF from HTML or Markdown with custom pages, margins, layout. x402. Remote server at pdf-generator.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

phone-validation

728

Br0ski777/phone-validation-x402

MCP server Claude CodeCodexCursor +2

Validate phone numbers worldwide: carrier, line type, country, E.164. x402. Remote server at phone-validation.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

port-scanner

729

Br0ski777/port-scanner-x402

MCP server Claude CodeCodexCursor +2

TCP port scanning — check open ports on any host. x402 micropayment. Remote server at port-scanner.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

seo-analyzer

730

Br0ski777/seo-analyzer-x402

MCP server Claude CodeCodexCursor +2

SEO audit any URL: meta tags, headings, links, images, Schema.org, score 0-100. x402. Remote server at seo-analyzer.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

ssl-checker

731

Br0ski777/ssl-checker-x402

MCP server Claude CodeCodexCursor +2

SSL certificate check — validity, expiry, issuer, chain, grade. x402 micropayment. Remote server at ssl-checker.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

stock-price

732

Br0ski777/stock-price-x402

MCP server Claude CodeCodexCursor +2

Real-time stock quotes — price, change, volume, market cap. x402 micropayment. Remote server at stock-price.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

trust-score

733

Br0ski777/trust-score-x402

MCP server Claude CodeCodexCursor +2

Trust scoring for domains, wallets, APIs. SSL+DNS+WHOIS+headers. Score 0-100. Remote server at trust-score.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

gdpr-scanner

734

Br0ski777/gdpr-scanner-x402

MCP server Claude CodeCodexCursor +2

Scan website GDPR compliance: consent, privacy policy, trackers. Score 0-100. x402. Remote server at gdpr-scanner.api.klymax402.com.

not rated 0 8d ago A tokens not measured original MIT

healthcare-fhir-mcp

735

CSOAI-ORG/healthcare-fhir-mcp

MCP server Claude CodeCodexCursor +2

Healthcare Fhir tools for AI agents. Capabilities: search patients, get patient, search conditions. Built by MEOK AI Labs. Runs locally from the healthcare-fhir-mcp Python package.

not rated 0 6d ago A tokens not measured original MIT

mock-server-ai-mcp

736

CSOAI-ORG/mock-server-ai-mcp

MCP server Claude CodeCodexCursor +2

Mock Server Ai automation via MCP. Includes create mock endpoint, generate mock data, create openapi mock. By MEOK AI Labs. Runs locally from the mock-server-ai-mcp Python package.

not rated 0 6d ago A tokens not measured original MIT

CSOAI-ORG/schema-validator-ai-mcp

MCP server Claude CodeCodexCursor +2

Schema Validator Ai automation via MCP. Includes validate json schema, generate schema, convert openapi. By MEOK AI Labs. Runs locally from the schema-validator-ai-mcp Python package.

not rated 0 6d ago A tokens not measured original MIT

mcp-blockchain-events

738

CryptoAPIs-io/cryptoapis-mcp-blockchain-events

MCP server Claude CodeCodexCursor +2

MCP server for subscribing to and managing on-chain event webhooks via Crypto APIs. Runs locally from the @cryptoapis-io/mcp-blockchain-events npm package. Needs 1 environment variable to run.

not rated 0 1mo ago A tokens not measured

postfact

739

GSterlingPress/postfact-api

MCP server Claude CodeCodexCursor +2

Resolve whether an uncertain side-effecting action completed before software retries it. Remote server at postfact-api-production.up.railway.app.

not rated 0 6d ago A tokens not measured

mcp-server

740

velesan/mcp-server

MCP server Claude CodeCodexCursor +2

MCP server for GlobKurier API - Hexagonal Architecture with CQRS. Runs locally from the globkurier-api-mcp Python package.

not rated 0 6mo ago A tokens not measured

x-mcp-ai

741

IvanBBaev/x-mcp

MCP server Claude CodeCodexCursor +2

Safety-first X (Twitter) API v2 MCP server: 41 typed tools across 12 packages, policy-gated. Runs locally from the x-mcp-ai npm package. Needs 18 environment variables to run.

not rated 0 yesterday A tokens not measured original MIT

github-webhook-mcp

742

Liplus-Project/github-webhook-mcp

MCP server Claude CodeCodexCursor +2

MCP server bridging GitHub webhooks via Cloudflare Worker for real-time event streaming. Runs locally from the github-webhook-mcp npm package. Needs 2 environment variables to run.

not rated 0 1mo ago A tokens not measured original Apache-2.0

lockspec

743

LockSpec/lockspec

MCP server Claude CodeCodexCursor +2

MCP server giving AI coding agents version-pinned API context from your OpenAPI specs. Runs locally from the lockspec npm package.

not rated 0 3mo ago A tokens not measured original Apache-2.0

render-useful-mcp

744

LuSrodri/render-useful-mcp

MCP server Claude CodeCodexCursor +2

MCP server for the Render Public API: all 207 endpoints plus workflow tools. Runs locally from the render-useful-mcp npm package. Needs 5 environment variables to run.

not rated 0 5d ago A tokens not measured original MIT