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x402 Protocol Service Directory

Messari

Data ✓ VERIFIED

verified until 2026-07-26

Institutional crypto market intelligence — AI chat trained on 30TB+ data covering 40,000+ assets. USDC on Base or Solana.

Pay from $0.25 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

UPTIME 24H 100% 7D 100% 30D 100%
BASE URL https://api.messari.io WEBSITE https://messari.io ENDPOINTS 1 NETWORK Base / Solana ASSET USDC MEMBER SINCE 2026-01-23 MONITORED SINCE 2026-04-15

ASSESSMENT

updated 2h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 100%
uptime 24h
100%
uptime 7d
100%
uptime 30d
100%
uptime 90d
100%
response p95
1116ms
avg response
920ms
total checks
7,164
compliance A (11/11)

11 of 11 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.25 (p99 in Data)
price (min)
$0.25
category percentile (min)
p99 in Data
endpoints / prices
1 / 1
model
flat
stability
100%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

traction $55.44 30d · 25 buyers
volume 30d
$55.44
buyers 30d
25
settlements 30d
207
last settlement
2026-07-18
top buyer share
32% of 30d volume
trend 7d vs 30d
0.44x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

WHAT IT DOES

ai-derived

Provides AI chat completion over crypto research data

category
crypto-ai
in
body
aicryptochatresearch

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET
POST /ai/v2/chat/completions AI chat completion over crypto research data $0.25 Base/Solana USDC
1 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /ai/v2/chat/completions returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i -X POST 'https://api.messari.io/ai/v2/chat/completions'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "error": "Payment Required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x75Ddd3c42eAce13c59EA0CD1141B886A1c70D2A5",
        "amount": "250000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "payTo": "jPt2dffmPi7WEtV8J6UFHJQaatEJVyuSFmz5b4DHFG8",
        "amount": "250000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "0x779Ded0c9e1022225f8E0630b35a9b54bE713736",
        "extra": {
          "name": "USD₮0",
          "version": "1"
        },
        "payTo": "0x9e730985cb9925e8addb9e7701c2a45a5cd226a9",
        "amount": "250000",
        "scheme": "exact",
        "network": "eip155:196",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.messari.io/ai/v2/chat/completions",
      "mimeType": "application/json",
      "description": "AI chat completion"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "stream": false,
              "messages": [
                {
                  "role": "assistant",
                  "content": "You are responding to a query. Be succinct."
                },
                {
                  "role": "user",
                  "content": "What are the latest updates on Bitcoin?"
                }
              ],
              "verbosity": "succinct",
              "disable_tables": true,
              "response_format": "markdown",
              "inline_citations": false
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "example": {
              "data": {
                "messages": [
                  {
                    "role": "assistant",
                    "content": "Bitcoin recently surpassed $100,000 for the first time..."
                  }
                ]
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "required": [
            "messages"
          ],
          "properties": {
            "stream": {
              "type": "boolean"
            },
            "messages": {
              "type": "array",
              "items": {
                "type": "object",
                "required": [
                  "role",
                  "content"
                ],
                "properties": {
                  "role": {
                    "enum": [
                      "user",
                      "assistant"
                    ],
                    "type": "string"
                  },
                  "content": {
                    "type": "string"
                  }
                }
              }
            },
            "verbosity": {
              "enum": [
                "succinct",
                "normal",
                "verbose"
              ],
              "type": "string"
            },
            "disable_tables": {
              "type": "boolean"
            },
            "response_format": {
              "enum": [
                "markdown",
                "text"
              ],
              "type": "string"
            },
            "inline_citations": {
              "type": "boolean"
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

UPTIME

06-20 · uptime 100.0% · 1357ms avg06-21 · uptime 100.0% · 1265ms avg06-22 · uptime 100.0% · 1247ms avg06-23 · uptime 100.0% · 1365ms avg06-24 · uptime 100.0% · 1210ms avg06-25 · uptime 100.0% · 1024ms avg06-26 · uptime 100.0% · 896ms avg06-27 · uptime 100.0% · 1192ms avg06-28 · uptime 100.0% · 1230ms avg06-29 · uptime 100.0% · 1252ms avg06-30 · uptime 100.0% · 1066ms avg07-01 · uptime 100.0% · 1089ms avg07-02 · uptime 100.0% · 884ms avg07-03 · uptime 100.0% · 652ms avg07-04 · uptime 100.0% · 698ms avg07-05 · uptime 100.0% · 678ms avg07-06 · uptime 100.0% · 654ms avg07-07 · uptime 100.0% · 791ms avg07-08 · uptime 100.0% · 698ms avg07-09 · uptime 100.0% · 666ms avg07-10 · uptime 100.0% · 679ms avg07-11 · uptime 100.0% · 673ms avg07-12 · uptime 100.0% · 732ms avg07-13 · uptime 100.0% · 730ms avg07-14 · uptime 100.0% · 792ms avg07-15 · uptime 100.0% · 806ms avg07-16 · uptime 100.0% · 829ms avg07-17 · uptime 100.0% · 685ms avg07-18 · uptime 100.0% · 592ms avg07-19 · uptime 100.0% · 566ms avg06-2007-19
RESPONSE TIME
06-20 · 1357ms avg06-20 · 1357ms avg06-21 · 1265ms avg06-21 · 1265ms avg06-22 · 1247ms avg06-22 · 1247ms avg06-23 · 1365ms avg06-23 · 1365ms avg06-24 · 1210ms avg06-24 · 1210ms avg06-25 · 1024ms avg06-25 · 1024ms avg06-26 · 896ms avg06-26 · 896ms avg06-27 · 1192ms avg06-27 · 1192ms avg06-28 · 1230ms avg06-28 · 1230ms avg06-29 · 1252ms avg06-29 · 1252ms avg06-30 · 1066ms avg06-30 · 1066ms avg07-01 · 1089ms avg07-01 · 1089ms avg07-02 · 884ms avg07-02 · 884ms avg07-03 · 652ms avg07-03 · 652ms avg07-04 · 698ms avg07-04 · 698ms avg07-05 · 678ms avg07-05 · 678ms avg07-06 · 654ms avg07-06 · 654ms avg07-07 · 791ms avg07-07 · 791ms avg07-08 · 698ms avg07-08 · 698ms avg07-09 · 666ms avg07-09 · 666ms avg07-10 · 679ms avg07-10 · 679ms avg07-11 · 673ms avg07-11 · 673ms avg07-12 · 732ms avg07-12 · 732ms avg07-13 · 730ms avg07-13 · 730ms avg07-14 · 792ms avg07-14 · 792ms avg07-15 · 806ms avg07-15 · 806ms avg07-16 · 829ms avg07-16 · 829ms avg07-17 · 685ms avg07-17 · 685ms avg07-18 · 592ms avg07-18 · 592ms avg07-19 · 566ms avg07-19 · 566ms avg06-2007-19
30d UPTIME 100%
UPTIME 30D 100%
AVG RESP 920ms
TOTAL CHECKS 7,180

RECENT CHECKS

TIME STATUS RESP
● OK 891ms
● OK 244ms
● OK 627ms
● OK 543ms
● OK 1004ms
● OK 672ms
● OK 636ms
● OK 960ms
● OK 569ms
● OK 286ms
● OK 496ms
● OK 298ms
● OK 506ms
● OK 293ms
● OK 691ms
● OK 358ms
● OK 868ms
● OK 1117ms

OVER TIME

All charts share the 30d window selected here. Every series is also served as JSON at /api/v1/services/messari/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted).

PRICE (captured 402, USD)
06-19 · $0.2507-19 · $0.25$0.2506-1907-19
SUB-SCORES (uptime + x402 compliance)
07-13 uptime: 100.0% compliance: 92% checks07-14 uptime: 100.0% compliance: 92% checks07-15 uptime: 100.0% compliance: 92% checks07-16 uptime: 100.0% compliance: 92% checks07-17 uptime: 100.0% compliance: 100% checks07-18 uptime: 100.0% compliance: 100% checks07-19 uptime: 100.0% compliance: 100% checksuptimecompliance07-1307-19
VOLUME (on-chain settlement, USD)
06-19 · $106-20 · $1006-21 · $206-22 · $906-23 · $406-24 · $0.7506-25 · $0.7506-26 · $106-27 · $106-28 · $106-29 · $0.7506-30 · $0.5007-01 · $307-02 · $207-03 · $207-04 · $0.2507-05 · $0.2507-06 · $0.7507-07 · $507-08 · $207-09 · $207-10 · $0.2507-11 · $0.2507-12 · $0.4007-13 · $0.7507-14 · $207-15 · $107-16 · $0.6007-17 · $0.2507-18 · $0.50peak $1006-1907-18
DISTINCT BUYERS
06-19 · 3 buyers06-20 · 4 buyers06-21 · 3 buyers06-22 · 4 buyers06-23 · 5 buyers06-24 · 2 buyers06-25 · 1 buyer06-26 · 3 buyers06-27 · 2 buyers06-28 · 2 buyers06-29 · 2 buyers06-30 · 2 buyers07-01 · 3 buyers07-02 · 7 buyers07-03 · 4 buyers07-04 · 1 buyer07-05 · 1 buyer07-06 · 2 buyers07-07 · 2 buyers07-08 · 3 buyers07-09 · 3 buyers07-10 · 1 buyer07-11 · 1 buyer07-12 · 2 buyers07-13 · 2 buyers07-14 · 4 buyers07-15 · 4 buyers07-16 · 3 buyers07-17 · 1 buyer07-18 · 1 buyerpeak 7 buyers06-1907-18

COMPLIANCE

11/11 checks pass · grade A
  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS

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