Agent-Readiness Grade

Agent-Readiness Grade / api.messari.io

D

api.messari.io

6/12 · 50% (scaled from 5 measurable areas)

Graded 2026-10-07 02:10 UTC in 0.3s · JSON · re-grade now

Top fixes

  1. MCP census entry (+2 points): Expose a Streamable HTTP MCP endpoint at /mcp (or a paid x402 route) so agents can call you, not just read you. How to fix
  2. Crawler access (+1 point): Add a group for GPTBot, Google-Extended with "Allow: /" (or drop the blanket "Disallow: /") if you want answer engines to cite you. How to fix
  3. Machine-readable surfaces (+1 point): Publish /llms.txt (a short Markdown guide to your key pages); /sitemap.xml. How to fix

Ordered by points recoverable. Each area: 2/2 pass, 1/2 warn, 0/2 fail.

api.messari.io is graded D. The $49 AI Visibility Full Report turns the 2 failing checks above (crawler access, machine-readable surfaces) into a prioritized, specific fix list for api.messari.io, and tests 8 real buyer questions across ChatGPT-class models to show what AI answers say about you today.

Get the full report — $49 Stripe checkout asks for your brand name and category; the report is ready about 60 seconds after payment. Legal notices and the MCP census entry are not in this report (free: Compliance Desk check, census claim).

Crawler access (robots.txt)

1/2 · warn

6 of 8 AI crawlers may read the site, 2 disallowed

  • GET /robots.txt -> HTTP 200, 62 B, 1 user-agent group
  • Disallowed: GPTBot, Google-Extended
  • Unmentioned (allowed by default): ClaudeBot, OAI-SearchBot, PerplexityBot, Amazonbot, CCBot, Bytespider

Fix: Add a group for GPTBot, Google-Extended with "Allow: /" (or drop the blanket "Disallow: /") if you want answer engines to cite you.

Machine-readable surfaces

1/2 · warn

1 of 7 surfaces present (/.well-known/x402)

  • /llms.txt: HTTP 404
  • /sitemap.xml: HTTP 404
  • /.well-known/x402: HTTP 200, valid JSON (59 paid resources)
  • /.well-known/agent-card.json: HTTP 404
  • /.well-known/mcp-registry-auth: HTTP 404
  • /openapi.json: HTTP 404
  • /ai.txt: HTTP 404

Fix: Publish /llms.txt (a short Markdown guide to your key pages); /sitemap.xml.

Readable without JavaScript

2/2 · pass

Home page is readable

  • GET https://api.messari.io/ -> HTTP 200, text/html, 2.1 KB
  • 394 characters of visible text with scripts, styles and tags removed; <title>: "Messari API — The Institutional Standard for Crypto Data"
  • 0 external scripts, 0 inline; <noscript> absent
  • first words: "👋 🤖 Welcome to Messari's APIs Answer crypto questions using 34,000+ assets, 210+ exchanges, 14 data services covering market metrics, soci..."

Fix: Nothing to fix here.

Structured data

1/2 · warn

No JSON-LD, Open Graph complete

  • 0 JSON-LD blocks
  • Open Graph: og:title "Messari API — The Institutional Standard for Crypto Data"; og:description present
  • meta description: present

Fix: add a JSON-LD block (Organization or WebSite, plus Product, FAQPage or Article where relevant) so answer engines describe you accurately.

MCP census entry (index.agentexchange.work)

0/2 · fail

Not selling to agents: no census entry, no /mcp endpoint

  • census unavailable (refused index.agentexchange.work: hosts on agentexchange.work cannot be graded from inside the same Cloudflare zone; every check would time )
  • GET /mcp -> HTTP 404: no MCP endpoint at the root

Fix: Expose a Streamable HTTP MCP endpoint at /mcp (or a paid x402 route) so agents can call you, not just read you.

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Permanent link; it re-grades the site live when opened:

https://grade.agentexchange.work/grade?url=api.messari.io

Public profile with grade history and an embeddable badge: https://grade.agentexchange.work/site/api.messari.io (badge: https://grade.agentexchange.work/badge/api.messari.io.svg).

$49 AI Visibility Full Report

This grade is free and automated. The paid next step is the $49 AI Visibility Full Report (which brands a representative AI model, standing in for ChatGPT-class assistants, names when buyers ask about your category, with a prioritized fix list) from aivisibility.agentexchange.work, run for api.messari.io. It includes:

Get the Full Report — $49 Stripe checkout asks for your brand name and category; the report is ready about 60 seconds after payment. Legal notices and the MCP census entry are not in this report (free: Compliance Desk check, census claim).

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