Agent Tools MCP

Agent Tools MCP

32 free remote MCP tools for validation, optimization and synthetic test data.

Website · 32-tool directory · Health · Registry metadata · MIT License

Connect an agent

Streamable HTTP (all 32 tools): https://agent-tools-mcp.yvan11.workers.dev/mcp

Specialized connectors (same Cloudflare Worker; no extra deploys or credentials):

Connector	Tools	URL
Validators MCP	12	https://agent-tools-mcp.yvan11.workers.dev/mcp/validators
Optimizers MCP	7	https://agent-tools-mcp.yvan11.workers.dev/mcp/optimizers
Generators MCP	13	https://agent-tools-mcp.yvan11.workers.dev/mcp/generators

Choose the smallest relevant connector. All endpoints share the same rate limits, privacy cautions, source and deployments.

Claude Code:

claude mcp add --transport http agent-tools https://agent-tools-mcp.yvan11.workers.dev/mcp

VS Code / Copilot: Command Palette → MCP: Add Server → HTTP → paste the endpoint URL.

Claude Code project .mcp.json configuration:

{ "mcpServers": { "agent-tools": { "type": "http", "url": "https://agent-tools-mcp.yvan11.workers.dev/mcp" } } }

VS Code .vscode/mcp.json configuration:

{ "servers": { "agent-tools": { "type": "http", "url": "https://agent-tools-mcp.yvan11.workers.dev/mcp" } } }

Use an MCP client rather than a browser GET request to /mcp, which can return Method not allowed by design.

Security and publishing

This is a public endpoint without authentication. Never submit real passwords, payment-card data, tax identifiers, bank information, private documents, or API secrets. Synthetic generated IDs and seeded passwords are development fixtures only. Read SECURITY.md.

The repo is public and MIT licensed, preserving the vendored source licenses. Cloudflare Workers Builds tests and deploys on commits to main; no GitHub Actions. The official registry descriptor uses io.github.why-see/agent-tools-mcp; Glama metadata identifies the maintainer. See PUBLISHING.md for a no-local-repository submission procedure. These files do not automatically publish a registry listing.

Tool inventory

Validators (12): is-card-safe, is-email-safe, is-iban-safe, is-iso-date-safe, is-ip-safe, is-json-safe, is-password-safe, is-phone-e164, is-uuid-safe, is-url-safe, is-us-tin-safe, is-vat-safe.

Optimizers (7 tools / 6 modules): optimize-dataset, optimize-google-tag, minify-html, minify-js, minify-css, minify-prompt, strip-ansi.

Generators (13): generate-avatar, generate-card-number, generate-color, generate-dataset, generate-fake-data, generate-hash, generate-lorem, generate-password, generate-phone-number, generate-prompt, generate-slug, generate-ssn, generate-token.

Optimizer MCP tool names are action-oriented, while vendored upstream file paths retain their original names. Implementations are derived from the upstream module files. Exact upstream versions and update policy are documented in UPSTREAM.md. The upstream catalogs are not complete or consistent enough to serve as the runtime source of truth; we use explicit audited function adapters.

Tests and deployment

On GitHub, push to main → Cloudflare Workers Builds performs npm test, then npx wrangler deploy only if tests pass. No GitHub Actions are present.

The test suite invokes all 32 MCP tools through the actual handler, including the initialize, tools/list, and tools/call protocol methods. It also verifies the three specialized MCP endpoints, their isolated inventories, and backward compatibility with /mcp.

The Worker has a Cloudflare native rate-limit binding (30 requests per minute per IP per data center), 8-KiB body guard and per-tool input/output bounds.

Optional MCP_API_TOKEN must be a Cloudflare secret, not a GitHub secret or a variable in wrangler.toml.

Restrictions

This public endpoint runs pure software utilities and cannot access your GitHub, Cloudflare, OpenAI or payment accounts. It is not a remotely editable filesystem. Do not send real passwords, payment details or private personal data to its validators. Generated financial identifiers and SSNs are synthetic test fixtures only. This service does not provide OAuth, client billing, SLA, global quotas or user identity.

Current catalog size is 32 MCP tool names backed by 31 original upstream modules. An update to an upstream source repo does not automatically rebuild this MCP Worker; see the explicit update policy.

The original four endpoint URLs are unchanged. The seven optimizer operation names were standardized to action-oriented forms in October 2026; clients that explicitly call a previous is-* optimizer name must refresh their tool catalog. The underlying code, inputs, outputs and tool counts are unchanged.