x402 List

x402 Protocol Service Directory

●

Mycelia Signal

Data PAYMENT-READY

payment-ready until 2026-09-09

Signed cryptographic price oracle. Ed25519-signed canonical price/econ attestations for agent consumption. 38 price pairs + 19 econ indicators.

Pay from $0.01 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

BASE URL https://api.myceliasignal.com │ WEBSITE https://myceliasignal.com │ ENDPOINTS 2 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-02-05 │ MONITORED SINCE 2026-04-15

VERDICT

ranking generation 3

solid 92/100 #103 of 257 in Data by measured score

What the score read on this service: status online, 99.9% uptime 30d, 1357ms response p95, x402 compliance 14 of 14, $0.01 price against the category. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 257 listings, this one among them. That set is wider than the 257 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN DATA

Other Data services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
ThirdMade Shelf strong 99 100% ---
API Acre strong 99 99.7% ---
IPIntel.ai x402 Tools strong 99 100% ---
WebberSites x402 Data API strong 99 100% ---
glim.sh strong 99 100% ---
5 of 256 other ranked services in Data · see the whole category

ASSESSMENT

updated 6h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 99.9%
uptime 24h
100%
uptime 7d
100%
uptime 30d
99.9%
uptime 90d
100%
response p95
1357ms
avg response
515ms
total checks
7,420

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.01 (p58 in Data)
price (min)
$0.01
category percentile (min)
p58 in Data
endpoints / prices
2 / 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.

domain age
-
registrar
-
hosting
custom
domain created
---

Identity facts, not a risk score.

traction ---

This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.

CHANGES

1 in 30d

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes schema changed 25d ago (1 in 30d)

schema changed · 25d ago

schema removed GET /oracle/price/btc/usd exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"name":"USD Coin","version":"2"}

schema removed GET /oracle/price/eth/usd exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 60 {"name":"USD Coin","version":"2"}

schema added GET /oracle/price/btc/usd exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}

schema added GET /oracle/price/eth/usd exact eip155:8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 USDC 2 300 {"name":"USD Coin","version":"2"}

see all changes for this service

WHAT IT DOES

ai-derived

Provides signed price oracles for cryptocurrency pairs like BTC/USD and ETH/USD

category
price-oracle
in
path
price-oraclecryptocurrencydata-verification

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 402 CHANNEL
GET /oracle/price/btc/usd BTC/USD signed price oracle $0.01 Base USDC header
GET /oracle/price/eth/usd ETH/USD signed price oracle $0.01 Base USDC header
2 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /oracle/price/btc/usd returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://api.myceliasignal.com/oracle/price/btc/usd'
// 402 response (captured by monitor) · 2 payloads · click to expand 
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xD593832Ce9C2B13B192ba50B55dd9AF44e96700d",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.myceliasignal.com/oracle/price/btc/usd",
      "mimeType": "application/json",
      "description": "Real-time Bitcoin price in USD, aggregated from 9 exchanges including Binance, Coinbase and Kraken — Ed25519 signed attestation"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "pair": "BTCUSD",
              "price": "81500.00",
              "method": "median",
              "sources": [
                "binance",
                "coinbase",
                "kraken",
                "bitstamp",
                "gemini",
                "okx",
                "bitfinex",
                "bullish",
                "gateio"
              ]
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xD593832Ce9C2B13B192ba50B55dd9AF44e96700d",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://api.myceliasignal.com/oracle/price/eth/usd",
      "mimeType": "application/json",
      "description": "Real-time Ethereum price in USD, aggregated from 9 exchanges including Binance, Coinbase and Kraken — Ed25519 signed attestation"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "pair": "ETHUSD",
              "price": "2330.00",
              "method": "median",
              "sources": [
                "binance",
                "coinbase",
                "kraken",
                "bitstamp",
                "gemini",
                "okx",
                "bitfinex",
                "bullish",
                "gateio"
              ]
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 30d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/mycelia-signal/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). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
08-04 · uptime 100.0% · 420ms avg08-05 · uptime 100.0% · 529ms avg08-06 · uptime 99.2% · 450ms avg08-07 · uptime 100.0% · 430ms avg08-08 · uptime 100.0% · 462ms avg08-09 · uptime 100.0% · 528ms avg08-10 · uptime 100.0% · 506ms avg08-11 · uptime 100.0% · 470ms avg08-12 · uptime 100.0% · 463ms avg08-13 · uptime 100.0% · 380ms avg08-14 · uptime 100.0% · 448ms avg08-15 · uptime 100.0% · 509ms avg08-16 · uptime 100.0% · 538ms avg08-17 · uptime 100.0% · 476ms avg08-18 · uptime 100.0% · 428ms avg08-19 · uptime 99.2% · 435ms avg08-20 · uptime 100.0% · 509ms avg08-21 · uptime 100.0% · 491ms avg08-22 · uptime 100.0% · 475ms avg08-23 · uptime 100.0% · 456ms avg08-24 · uptime 100.0% · 479ms avg08-25 · uptime 100.0% · 557ms avg08-26 · uptime 100.0% · 668ms avg08-27 · uptime 100.0% · 669ms avg08-28 · uptime 100.0% · 589ms avg08-29 · uptime 100.0% · 704ms avg08-30 · uptime 100.0% · 732ms avg08-31 · uptime 100.0% · 478ms avg09-01 · uptime 100.0% · 733ms avg09-02 · uptime 100.0% · 616ms avg08-0409-02
30d UPTIME 99.9%
RESPONSE TIME
08-04 · 420ms avg08-04 · 420ms avg08-05 · 529ms avg08-05 · 529ms avg08-06 · 450ms avg08-06 · 450ms avg08-07 · 430ms avg08-07 · 430ms avg08-08 · 462ms avg08-08 · 462ms avg08-09 · 528ms avg08-09 · 528ms avg08-10 · 506ms avg08-10 · 506ms avg08-11 · 470ms avg08-11 · 470ms avg08-12 · 463ms avg08-12 · 463ms avg08-13 · 380ms avg08-13 · 380ms avg08-14 · 448ms avg08-14 · 448ms avg08-15 · 509ms avg08-15 · 509ms avg08-16 · 538ms avg08-16 · 538ms avg08-17 · 476ms avg08-17 · 476ms avg08-18 · 428ms avg08-18 · 428ms avg08-19 · 435ms avg08-19 · 435ms avg08-20 · 509ms avg08-20 · 509ms avg08-21 · 491ms avg08-21 · 491ms avg08-22 · 475ms avg08-22 · 475ms avg08-23 · 456ms avg08-23 · 456ms avg08-24 · 479ms avg08-24 · 479ms avg08-25 · 557ms avg08-25 · 557ms avg08-26 · 668ms avg08-26 · 668ms avg08-27 · 669ms avg08-27 · 669ms avg08-28 · 589ms avg08-28 · 589ms avg08-29 · 704ms avg08-29 · 704ms avg08-30 · 732ms avg08-30 · 732ms avg08-31 · 478ms avg08-31 · 478ms avg09-01 · 733ms avg09-01 · 733ms avg09-02 · 616ms avg09-02 · 616ms avg08-0409-02
AVG RESP 517ms
PRICE (captured 402, USD)
08-03 · $0.0109-02 · $0.01$0.0108-0309-02

Median across 2 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
08-03 uptime: 100.0% compliance: 100% checks08-04 uptime: 100.0% compliance: 100% checks08-05 uptime: 100.0% compliance: 100% checks08-06 uptime: 100.0% compliance: 100% checks08-07 uptime: 100.0% compliance: 100% checks08-08 uptime: 100.0% compliance: 100% checks08-09 uptime: 100.0% compliance: 100% checks08-10 uptime: 100.0% compliance: 100% checks08-11 uptime: 100.0% compliance: 100% checks08-12 uptime: 100.0% compliance: 100% checks08-13 uptime: 100.0% compliance: 100% checks08-14 uptime: 100.0% compliance: 100% checks08-15 uptime: 100.0% compliance: 100% checks08-16 uptime: 100.0% compliance: 100% checks08-17 uptime: 100.0% compliance: 100% checks08-18 uptime: 100.0% compliance: 100% checks08-19 uptime: 99.9% compliance: 100% checks08-20 uptime: 99.9% compliance: 100% checks08-21 uptime: 99.9% compliance: 100% checks08-22 uptime: 99.9% compliance: 100% checks08-23 uptime: 99.9% compliance: 100% checks08-24 uptime: 99.9% compliance: 100% checks08-25 uptime: 99.9% compliance: 100% checks08-26 uptime: 99.9% compliance: 100% checks08-27 uptime: 99.9% compliance: 100% checks08-28 uptime: 99.9% compliance: 100% checks08-29 uptime: 99.9% compliance: 100% checks08-30 uptime: 99.9% compliance: 100% checks08-31 uptime: 99.9% compliance: 100% checks09-01 uptime: 99.9% compliance: 100% checks09-02 uptime: 99.9% compliance: 100% checksuptimecompliance08-0309-02

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)
price percentile in Data
site signals present (of 6)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
This service settles on a network x402-list does not measure yet, so on-chain volume is not counted here. Shown as unmeasured, not zero.
DISTINCT BUYERS
This service settles on a network x402-list does not measure yet, so distinct on-chain buyers are not counted here. Shown as unmeasured, not zero.

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-08-08 · last up 2026-09-02

  • 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
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● OK 463ms
● OK 677ms
● OK 609ms
● OK 224ms
● OK 236ms
● OK 279ms
● OK 217ms
● OK 122ms
● OK 235ms
● OK 213ms
● OK 221ms
● OK 198ms
● OK 528ms
● OK 321ms
● OK 440ms
● SLOW 986ms
● OK 336ms
● OK 342ms
18 of 7,240 checks · live count

EMBED THIS BADGE

Show that Mycelia Signal is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

Mycelia Signal listed on x402-list
status
Mycelia Signal uptime on x402-list
live uptime
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Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

[ update this listing ]

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