Developer tools

x402 pay-per-call APIs over MCP, settled in USDC on Base for autonomous agents and developers.

Compile a liquid-handling plan (Flex robot, pipettes, deck labware, liquids, transfer/distribute/serial-dilute/mix/delay steps) into a self-contained Python protocol, run a static volume tracker and a real opentrons simulation, and return a pass/fail report with platemap, reagent-usage, and simulation-log artifacts. This proves the protocol runs, never that the experiment is scientifically valid.

Validate Code Climate: Validate a JSON document for Code Climate. Uses a pinned SchemaStore definition on this PC. Reports JSON pointers and rule violations. Up to 100 KB per document; no YAML/TOML parsing or deployment/security guarantee. 0.01 USDC includes one JSON document validation.

joi Advisory severity breakdown: Advisory severity breakdown for npm package joi, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.

Compute deadlines in business days with public holidays (200+ countries). $0.002/call.

Check a domain's DNS, SPF/DMARC and TLS before trusting it. $0.003/call via x402.

Find HS codes and UK/US import duty rates for goods. $0.004/call via x402.

+1 more from hs-tariff-production.up.railway.app

Look up the country and ASN of IP addresses (DB-IP Lite). $0.001/call via x402.

Decode a VIN and list NHTSA recalls for that model (US data). $0.003/call via x402.

Security reviews for coding agents: diffs checked against your org policy and live infrastructure.

Multi-language debug skills and code execution helper.

The Sandbox 24-hour statistics: 24-hour statistics for The Sandbox (SAND-USD) from Coinbase Exchange public USD market data. The product ID can be overridden; data only, not investment advice.

npm package vite: latest version, description, license, homepage and repository, weekly downloads, dependency count, publish dates and dist-tags from the npm registry. Pin, audit or compare vite in one call, no token. $0.01 per call.

Change watch for is port 2376 open: runs the check, compares it with the result from your previous call for the same host (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

pinecone status right now: reads the vendor's public status page (status.pinecone.io); Statuspage-style pages give the overall indicator (none/minor/major/critical), description and active incidents with impact and last update; other pages are sniffed for operational/outage wording. Ask before blaming your own integration. $0.01 per check.

TLS certificate status for anthropic.com: issuer, common name, valid-from/valid-to, days until expiry and whether it is valid now, from certificate-transparency logs and a live HTTPS check, plus HSTS and redirect-to-HTTPS. Expiry watch for a site you depend on. $0.01 per check.

Change watch for status page figma: runs the check, compares it with the result from your previous call for the same query (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

NuGet package iTextSharp: latest version, description, license, repository and download/publish data from the nuget registry API. Pin, audit or compare iTextSharp in one call, no token. $0.01 per call.

Change watch for status page tailscale: runs the check, compares it with the result from your previous call for the same query (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Cron preset "nightly 3am" (0 3 * * *): the next 10 run times in UTC from now (or from a start time you give), a plain-English description and the interval between runs. Grab the expression and its upcoming runs without writing cron syntax. $0.01 per call.

TLS certificate status for shopify.ca: issuer, common name, valid-from/valid-to, days until expiry and whether it is valid now, from certificate-transparency logs and a live HTTPS check, plus HSTS and redirect-to-HTTPS. Expiry watch for a site you depend on. $0.01 per check.

Validate a isbn 10: tests the value against a well-known isbn 10 pattern and returns valid true/false, the pattern used (so you can reuse it), and, when it fails, the first character position that breaks the rule. Format validation without writing regexes. $0.01 per call.

Change watch for is atlassian com down: runs the check, compares it with the result from your previous call for the same query (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Is rumble.com down right now? Live check from Cloudflare's edge: HTTP status, response time, final URL after redirects, server header and whether the TLS certificate is valid, with an up/down verdict. Call it when a user or agent says "rumble.com isn't loading" to tell a real outage from a local problem. $0.01 per check.

TLS certificate status for pypi.org: issuer, common name, valid-from/valid-to, days until expiry and whether it is valid now, from certificate-transparency logs and a live HTTPS check, plus HSTS and redirect-to-HTTPS. Expiry watch for a site you depend on. $0.01 per check.

TLS certificate status for bbc.com: issuer, common name, valid-from/valid-to, days until expiry and whether it is valid now, from certificate-transparency logs and a live HTTPS check, plus HSTS and redirect-to-HTTPS. Expiry watch for a site you depend on. $0.01 per check.

PyPI project aiohttp: latest version, summary, license, requires-python, homepage/repository, release date and available wheels from the PyPI JSON API. Pin, audit or compare aiohttp in one call, no token. $0.01 per call.

Is this IPv4 address announced by alibaba? Resolves the address to its origin ASN (Team Cymru DNS) and compares with alibaba's known autonomous systems (AS45102, AS37963, AS24429), returning yes/no with the ASN, prefix and network name. Fraud scoring, allow-listing and infrastructure mapping. $0.01 per lookup.

Change watch for status page anthropic: runs the check, compares it with the result from your previous call for the same query (kept 90 days) and returns the current answer, changed true/false, the fields that changed with before/after values, and when it was last seen. Schedule it to be alerted when this changes. $0.02 per check.

Bulk is ip github: up to 20 ips in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.