Delx Agent Utilities

Delx Agent Utilities

Stateless utility tools for AI agents — URL/HTTP, DNS/RDAP, x402, JWT, encoding, parsing, regex, cron.
Local-first. No API keys. Deterministic.

[PyPI version] [License MIT] [CI] [Built for MCP]

[Delx Agent Utilities] [GitHub stars]

mcp-name: io.github.davidmosiah/delx-agent-utilities

What it is

89 stateless utility tools that AI agents reach for constantly: URL health checks, page extraction, MCP readiness, x402 server discovery, loyalty reward quotes, JWT inspection, DNS / RDAP lookups, JSON / CSV conversion, hash / base64, cron description, and more.

• Stateless — every call is independent; no session, no cache, no DB.
• No API keys — fixed public providers and user-supplied public URLs; see Privacy posture for destinations.
• Deterministic — no LLMs, no model calls, no fuzzy outputs.
• Bounded operations — network tools use per-call timeouts, subject to resolver and parser limits described below.
• MCP-native — agent-readiness manifest, connection status, privacy audit.

This package was extracted from the Delx Protocol MCP server so any AI builder can use the toolkit directly, without depending on the Delx runtime. The public product and protocol context lives at ontology.delx.ai/utilities.

HTTP (v2 stateless)

Not shipped. The Python FastMCP extra is stdio-only. Adding Streamable HTTP would need extra Starlette /health wiring beyond a one-flag opt-in, so it stays documented-skip (same for google-ads-intent-mcp). The tools themselves are already request-stateless.

Install

pipx install "delx-agent-utilities[mcp]"

CLI entrypoints: delx-agent-utilities, delx-utils (alias), delx-utils-mcp (MCP server).

Quick use

From an MCP client (Claude Desktop, Cursor, Hermes, OpenClaw)

{  "mcpServers": {    "delx-utils": {      "command": "delx-utils-mcp"    }  }}

90 tools become available immediately, plus three agent-readiness surfaces:

• delx_utilities_manifest
• delx_utilities_connection_status
• delx_utilities_privacy_audit

From the CLI

delx-utils manifestdelx-utils list-toolsdelx-utils show util_url_healthdelx-utils call util_url_health --json '{"url":"https://example.com"}'

From Python

import asynciofrom delx_agent_utilities import call_util_tool, list_util_tool_schemas
result = asyncio.run(call_util_tool("util_url_health", {"url": "https://example.com"}))print(result["status_code"], result["latency_ms"])
schemas = list_util_tool_schemas()print(f"{len(schemas)} tools available")

The 90 tools

Encoding & parsing (15)

util_json_validate, util_token_estimate, util_uuid_generate, util_timestamp_convert, util_base64, util_hash, util_regex_test, util_cron_describe, util_http_codes, util_timezone_lookup, util_unit_convert, util_business_days, util_jwt_inspect, util_csv_to_json, util_json_to_csv

Web extract (6)

util_page_extract, util_open_graph, util_links_extract, util_forms_extract, util_contact_extract, util_feed_discover

Network probes (8)

util_url_health, util_robots_inspect, util_sitemap_probe, util_tls_inspect, util_security_txt_inspect, util_http_headers_inspect, util_dns_lookup, util_rdap_lookup

x402 / API intel (6)

util_x402_server_probe, util_x402_resource_summary, util_x402_server_audit, util_api_health_report, util_openapi_summary, util_mcp_server_readiness_report

Identity / contact (1)

util_email_validate

Composite reports (8)

util_website_intelligence_report, util_domain_trust_report, util_docs_site_map, util_pricing_page_extract, util_company_contact_pack, util_api_integration_readiness, util_login_surface_report, util_content_distribution_report

Commerce workflows

util_loyalty_reward_quote

Public data and identity (4)

util_vin_decode, util_wmi_decode, util_lei_lookup, util_inflation_calculator

Local text, data, and identifiers (35)

util_holidays, util_slugify, util_mime_lookup, util_color_convert, util_ip_classify, util_cidr_contains, util_ulid_generate, util_html_strip, util_semver_compare, util_word_count, util_markdown_to_text, util_duration_parse, util_case_convert, util_query_string, util_url_join, util_percent_change, util_clamp, util_luhn_check, util_isbn_check, util_diff_lines, util_levenshtein, util_similarity, util_normalize_whitespace, util_extract_urls, util_extract_emails, util_url_encode, util_hex_convert, util_number_base, util_dedupe_lines, util_sort_lines, util_random_int, util_rot13, util_text_truncate, util_reading_time, util_random_choice

Sales-led local preflights (6)

util_seeded_random_sample, util_base_gas_budget_check, util_dns_record_diff, util_http_header_diff, util_x402_payment_preflight, util_image_result_contract_check

These six preflights were selected from aggregate external Commerce sales. They are local implementations only: pricing, x402 delivery, telemetry, and refund ownership remain in Delx Commerce.

Each tool's full input schema is available via delx-utils show <tool> or UTIL_TOOL_SCHEMAS["<tool>"] in Python.

Privacy posture

No API keys. No telemetry. No stored state. Networked tools may contact:

• rdap.org/domain/<domain> for RDAP and dns.google/resolve for DNS-over-HTTPS.
• vpic.nhtsa.dot.gov for VIN/WMI, api.gleif.org for LEI, and api.bls.gov for CPI data.
• Public URLs supplied by the caller and their redirects; provider redirects can also change destinations. Do not submit secrets or private data in URLs or inputs.

The pinned HTTP inspection transport uses HTTP/1.1 with validated public DNS destinations and redirects. It fails closed when the relevant HTTP_PROXY, HTTPS_PROXY, or ALL_PROXY variable is nonempty, including lowercase variants; NO_PROXY does not override this. It keeps no cookie jar, requests identity encoding (compressed responses are rejected), and limits bodies to 8 MiB per hop. util_mcp_server_readiness_report pins each public destination, rejects redirects and URL credentials, and caps each response at 200,000 bytes; injected HTTP clients are not accepted. Fixed-provider HTTP clients have their own behavior and are not covered by the pinned transport's guarantees. OS DNS and some HTTP parser reads are not subject to a strict wall-clock deadline. See NETWORK_SECURITY.md and MIGRATION.md.

Call delx_utilities_privacy_audit (or delx-utils privacy-audit) to see the full posture in JSON form before invoking any networked tool.

Architecture

src/delx_agent_utilities/├── __init__.py          # public re-exports├── agent.py             # manifest / status / privacy_audit├── cli.py               # CLI argparse├── dispatcher.py        # call_util_tool, _normalize_util_args├── mcp_server.py        # FastMCP server├── schemas.py           # public re-export of UTIL_TOOL_NAMES / SCHEMAS└── _internal/           # implementation, not stable across versions    ├── _helpers.py    ├── _schemas.py    ├── _tools_encoding.py    ├── _tools_cron.py    ├── _tools_http_codes.py    ├── _tools_sales_led.py    ├── _tools_web.py    # roadmap: split into web/network/x402/composite in v0.2.0    └── _tools_jwt_csv.py

Roadmap

• v0.2.0 — split _internal/_tools_web.py (1k LOC) into per-domain modules: _tools_web_extract.py, _tools_network.py, _tools_x402.py, _tools_composite.py.
• Per-tool unit tests (one file per tool) replacing the smoke-only suite.
• Further provider and transport integration tests in controlled environments.
• Configurable per-tool timeouts via env (DELX_UTILITIES_DEFAULT_TIMEOUT_S, DELX_UTILITIES_URL_HEALTH_TIMEOUT_S, …).

Provenance

Originally part of the Delx Protocol MCP server. Extracted on 2026-05-09 as a standalone open-source package so any AI builder can use the toolkit without depending on the Delx Protocol runtime.

The Delx Protocol itself (recovery / heartbeat / identity / governance primitives) remains closed-source; this package is the open utility layer beneath it.

Contributing

PRs welcome — see CONTRIBUTING.md. Common cuts that would help:

• New utility tools that fit the "stateless / no API keys / deterministic" rule.
• Splitting _internal/_tools_web.py per the v0.2.0 roadmap above.
• Per-tool unit tests.

📧 Contact & Support

• 📨 [email protected] — general questions, integration help, partnerships
• 🐛 Bug reports / feature requests — GitHub Issues
• 🐦 Updates — @delx369 on X
• 🌐 Site — wellness.delx.ai

License

MIT — see LICENSE.

If this toolkit helps your agent workflow, please star the repo. Stars make the project easier for other AI builders to discover and help Delx keep shipping local-first agent infrastructure.

Author

David Mosiah — @delx369 — building the protocol layer for autonomous AI agents at Delx.